spring配置C3P0问题 [问题点数:100分,结帖人panqunjun]

一键查看最优答案

确认一键查看最优答案?
本功能为VIP专享,开通VIP获取答案速率将提升10倍哦!
Bbs2
本版专家分:108
结帖率 78.05%
Bbs7
本版专家分:21362
Blank
黄花 2010年1月 Java大版内专家分月排行榜第二
2009年12月 Java大版内专家分月排行榜第二
Blank
蓝花 2009年11月 Java大版内专家分月排行榜第三
Bbs2
本版专家分:108
Bbs7
本版专家分:21362
Blank
黄花 2010年1月 Java大版内专家分月排行榜第二
2009年12月 Java大版内专家分月排行榜第二
Blank
蓝花 2009年11月 Java大版内专家分月排行榜第三
Bbs2
本版专家分:108
Bbs7
本版专家分:21362
Blank
黄花 2010年1月 Java大版内专家分月排行榜第二
2009年12月 Java大版内专家分月排行榜第二
Blank
蓝花 2009年11月 Java大版内专家分月排行榜第三
Bbs7
本版专家分:26325
Blank
银牌 2009年10月 总版技术专家分月排行榜第二
Blank
红花 2009年10月 Java大版内专家分月排行榜第一
Blank
黄花 2009年11月 Java大版内专家分月排行榜第二
Bbs7
本版专家分:26325
Blank
银牌 2009年10月 总版技术专家分月排行榜第二
Blank
红花 2009年10月 Java大版内专家分月排行榜第一
Blank
黄花 2009年11月 Java大版内专家分月排行榜第二
Bbs1
本版专家分:9
Bbs2
本版专家分:108
Bbs7
本版专家分:13072
Bbs8
本版专家分:37546
版主
Blank
红花 2009年11月 Java大版内专家分月排行榜第一
Blank
黄花 2010年2月 Java大版内专家分月排行榜第二
Blank
蓝花 2011年7月 Java大版内专家分月排行榜第三
2010年1月 Java大版内专家分月排行榜第三
2009年12月 Java大版内专家分月排行榜第三
Bbs8
本版专家分:37546
版主
Blank
红花 2009年11月 Java大版内专家分月排行榜第一
Blank
黄花 2010年2月 Java大版内专家分月排行榜第二
Blank
蓝花 2011年7月 Java大版内专家分月排行榜第三
2010年1月 Java大版内专家分月排行榜第三
2009年12月 Java大版内专家分月排行榜第三
Bbs7
本版专家分:24726
版主
Blank
技术圈认证(专家版) 博客专家完成年度认证,即可获得
Blank
GitHub 绑定GitHub第三方账户获取
Blank
红花 2013年11月 扩充话题大版内专家分月排行榜第一
Blank
蓝花 2011年12月 扩充话题大版内专家分排名第三
Bbs2
本版专家分:108
Bbs5
本版专家分:2305
Bbs2
本版专家分:108
Bbs7
本版专家分:26325
Blank
银牌 2009年10月 总版技术专家分月排行榜第二
Blank
红花 2009年10月 Java大版内专家分月排行榜第一
Blank
黄花 2009年11月 Java大版内专家分月排行榜第二
Bbs2
本版专家分:108
c3p0连接池jar包以及Spring对c3p0的依赖包

c<em>3</em>p<em>0</em>连接池jar包以及Spring对c<em>3</em>p<em>0</em>的依赖包

spring配置c3p0连接池

现在对学习<em>spring</em>框架里面的知识进行下记录,本人菜鸡一枚,希望看到的大神不要嘲讽我。对<em>spring</em><em>配置</em>c<em>3</em>p<em>0</em>连接池进行操作并使用jdbcTemplate模板进行crud操作,之前使用的时候是导入jar包,常见c<em>3</em>p<em>0</em>-config.xml文件,在里面进行<em>配置</em>。再创建一个类,写取得连接方法和关闭方法。在实际开发的时候是不会用测试的方法来进行的。那就需要我们用<em>spring</em>框架进行<em>配置</em>c<em>3</em>p<em>0</em>连接...

spring 整合c3p0连接池

Spring 整合<em>C</em><em>3</em><em>P</em><em>0</em>连接池 注意:环境 jdk1.8 ,idea 2<em>0</em>18,maven,<em>spring</em>环境 代码存放在码云里面。 码云地址 https://gitee.com/suwenguang 注意这个工程还有我其他demo,本文目录在<em>spring</em>.my.suveng.jdbc.c<em>3</em>p<em>0</em>JDB<em>C</em> 目录里面 <em>spring</em> <em>配置</em>再<em>spring</em>.co...

spring boot 集成 flowable 报错 java.lang.ClassNotFoundException: liquibase.database.jvm.JdbcConnection

最近在折腾<em>spring</em> boot + flowable, 按照文档一步一步走,结果启动就报错: . ____ _ __ _ _ /\\ / ___'_ __ _ _(_)_ __ __ _ \ \ \ \ ( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \ \\/ ___)| |_)| | | | | ||...

JBDC连接问题出现异常!!

package com; import java.sql.*; import javax.sql.*; public class Test { public static void main(Str

JDBC元数据操作(一)-- DatabaseMetaData接口详解

1. 前言     在JDB<em>C</em>技术规范中,提供了<em>C</em>onnection,Statement,ResultSet这三个开发过程中经常用到的接口。针对与每个接口,JDB<em>C</em>规范提供了相应的接口描述对象,也就是xxxMetaData系列描述对象。DatabaseMetaData和ResultSetMetaData就是两个常用的获取数据库元数据相关信息的接口,本文只讲解DatabaseMetaData接口获

c3p0spring配置(详解)

<em>C</em><em>3</em><em>P</em><em>0</em>是一个开放源代码的JDB<em>C</em>连接池,它在lib目录中与Hibernate一起发布,包括了实现jdbc<em>3</em>和 jdbc2扩展规范说明的<em>C</em>onnection 和Statement 池的DataSources 对象。      <em>3</em>      <em>3</em><em>0</em>      1<em>0</em><em>0</em><em>0</em>      false      属性preferredTestQuery将被忽略。你不能在这张

如何实现在Eclipse导入c3p0

1 右键项目-&gt;<em>P</em>roperties-&gt;Java Build <em>P</em>ath-&gt;Libraries-&gt;Add External JARs...-&gt; c<em>3</em>p<em>0</em>-<em>0</em>.9.5.2.jar 和 mchange-commons-java-<em>0</em>.2.11.jar 2 导入c<em>3</em>p<em>0</em>-config.xml 1 右键项目-&gt;<em>P</em>roperties-&gt;J...

Could not get JDBC Connection"问题">解决SSM框架"Could not get JDBC Connection"问题

来源:https://loliwithpick.github.io/deny.github.io/2<em>0</em>19/<em>0</em><em>3</em>/12/jdbcError/ <em>C</em>ould not get JDB<em>C</em> <em>C</em>onnection; nested exception is org.apache.commons.dbcp.SQLNestedException: <em>C</em>annot create <em>P</em>oolable<em>C</em>onnection...

JDBC API 4.2(十):DatabaseMetaData 接口源码分析

1、简介 DatabaseMetaData 接口提供了获取数据库元数据的方法,例如数据库名称,数据库版本,驱动程序名称,表总数,视图总数等。 该接口由驱动程序供应商实现,以使用户了解数据库管理系统(DBMS)的功能以及与之结合使用的基于JDB<em>C</em>技术的驱动程序。 不同的DBMS通常支持不同的功能,以不同的方式实现功能以及使用不同的数据类型。 另外,驱动程序可以在DBMS提供的功能之上实现功能。 该接...

Could not get Connection for extracting meta-data; nested exception is org.springframework.jdbc.Cann

<em>C</em>ould not get <em>C</em>onnection for extracting meta-data; nested exception is org.<em>spring</em>framework.jdbc.<em>C</em>annotGetJdbc<em>C</em>onnectionException: Failed to obtain JDB<em>C</em> <em>C</em>onnection; nested exception is java.sql.SQLExce...

ibatis [org/springframework/jdbc/support/sql-error-codes.xml] 错误

在用ibatis添加时出现错误,查询没<em>问题</em>。 Loading XML bean definitions from class path resource SQLError<em>C</em>odes loaded: s

控制台报错:Loading XML bean definitions from class path resource [org/springframework/jdbc/support/sql-er

******控制台报错:Loading XML bean definitions from class path resource [org/<em>spring</em>framework/jdbc/support/sql-error】 当出现这种错误的时候: 解决方案一:首先,看一下自己的sql语句有没有<em>问题</em>,在mapper映射文件中的sql是否有标签错误等。 解决方案二:如果你的<em>问题</em>还没有得到解决,建议将你的...

jdbc通过DatabaseMetaData获取oracle数据库表字段数据类型错误

Linux机器上有个oracle服务器,有个表中的字段是number(<em>3</em>8,<em>0</em>),但是通过 int columnSize=columnRs.getInt("<em>C</em>OLUMN_SIZE"); int dec

错误:org.springframework.jdbc.support.SQLErrorCodesFactory - SQLErrorCodes loaded

使用<em>spring</em>+mybatis整合时报错:org.<em>spring</em>framework.jdbc.support.SQLError<em>C</em>odesFactory - SQLError<em>C</em>odes loaded 错误原因是; 1.参数与数据库字段不匹配,可能是映射文件sql语句写错了,字段名与数据库中的字段名不匹配。 2.也有可能是传递的参数超过了数据库字段限定的长度。 <em>3</em>.也有可能是resultMap...

IDEA中使用C3P0插入MySQL数据中文乱码!

如图,我用<em>C</em><em>3</em><em>P</em><em>0</em><em>配置</em>数据库连接,<em>配置</em>如下: <defa

java配置C3P0数据连接池中文乱码问题的解决

使用自定义的数据连接池时,插入到数据库中的中文正常,但是使用<em>C</em><em>3</em><em>P</em><em>0</em>数据连接池时就会出现乱码现象原代码如下&amp;lt;?xml version=&quot;1.<em>0</em>&quot; encoding=&quot;UTF-8&quot;?&amp;gt; &amp;lt;c<em>3</em>p<em>0</em>-config&amp;gt; &amp;lt;default-config&amp;gt; &amp;lt;property name=&quot;driver<em>C</em>lass&quot;&amp;gt;com.mysql.j

Spring之Bean的作用域、使用外部属性文件、mchange-commons-java-0.2.11.jar下载

Bean的作用域 在IO<em>C</em>里创建对象的时候,同一个类,只会创建一个实例对象,多次获取同一个类的对象时,实际上获取的都是同一个对象, 两个对象的地址是相同的 car.java package com.labou<em>3</em>g.bean.scope; public class <em>C</em>ar { private String brand; private double price; public <em>C</em>ar() {...

java 写入xml一异常 org.dom4j.DocumentException

org.dom4j.DocumentException: Error on line -1 of document : <em>P</em>remature end of file. Nested exception: <em>P</em>remature end of file. at org.dom4j.io.SAXReader.read(SAXReader.java:482) at org.dom4j.io.SAXReader.read(SAXReader.java:<em>3</em>4<em>3</em>) 什么<em>问题</em>

Could not get JDBC Connection; com.mysql.cj.jdbc.Driver?

四月 17, 2<em>0</em>19 2:15:44 上午 org.apache.catalina.core.StandardWrapperValve invoke 严重: Servlet.service() for servlet [taotao-manager] in context with path [] threw exception [Request processing failed; nested exception is org.mybatis.<em>spring</em>.MyBatisSystemException: nested exception is org.apache.ibatis.exceptions.<em>P</em>ersistenceException: ### Error querying database. <em>C</em>ause: org.<em>spring</em>framework.jdbc.<em>C</em>annotGetJdbc<em>C</em>onnectionException: <em>C</em>ould not get JDB<em>C</em> <em>C</em>onnection; nested exception is java.sql.SQLException: com.mysql.cj.jdbc.Driver ### The error may exist in com/taotao/mapper/TbItemMapper.xml ### The error may involve com.taotao.mapper.TbItemMapper.selectBy<em>P</em>rimaryKey ### The error occurred while executing a query ### <em>C</em>ause: org.<em>spring</em>framework.jdbc.<em>C</em>annotGetJdbc<em>C</em>onnectionException: <em>C</em>ould not get JDB<em>C</em> <em>C</em>onnection; nested exception is java.sql.SQLException: com.mysql.cj.jdbc.Driver] with root cause java.lang.<em>C</em>lassNotFoundException: com.mysql.cj.jdbc.Driver at org.apache.catalina.loader.Webapp<em>C</em>lassLoader.load<em>C</em>lass(Webapp<em>C</em>lassLoader.java:17<em>0</em>2) at org.apache.catalina.loader.Webapp<em>C</em>lassLoader.load<em>C</em>lass(Webapp<em>C</em>lassLoader.java:1547) at java.lang.<em>C</em>lass.forName<em>0</em>(Native Method) at java.lang.<em>C</em>lass.forName(<em>C</em>lass.java:264) at com.alibaba.druid.util.JdbcUtils.createDriver(JdbcUtils.java:518) at com.alibaba.druid.pool.DruidDataSource.init(DruidDataSource.java:58<em>3</em>) at com.alibaba.druid.pool.DruidDataSource.get<em>C</em>onnection(DruidDataSource.java:915) at com.alibaba.druid.pool.DruidDataSource.get<em>C</em>onnection(DruidDataSource.java:911) at com.alibaba.druid.pool.DruidDataSource.get<em>C</em>onnection(DruidDataSource.java:98) at org.<em>spring</em>framework.jdbc.datasource.DataSourceUtils.doGet<em>C</em>onnection(DataSourceUtils.java:111) at org.<em>spring</em>framework.jdbc.datasource.DataSourceUtils.get<em>C</em>onnection(DataSourceUtils.java:77) at org.mybatis.<em>spring</em>.transaction.SpringManagedTransaction.open<em>C</em>onnection(SpringManagedTransaction.java:81) at org.mybatis.<em>spring</em>.transaction.SpringManagedTransaction.get<em>C</em>onnection(SpringManagedTransaction.java:67) at org.apache.ibatis.executor.BaseExecutor.get<em>C</em>onnection(BaseExecutor.java:279) at org.apache.ibatis.executor.SimpleExecutor.prepareStatement(SimpleExecutor.java:72) at org.apache.ibatis.executor.SimpleExecutor.doQuery(SimpleExecutor.java:59) at org.apache.ibatis.executor.BaseExecutor.queryFromDatabase(BaseExecutor.java:267) at org.apache.ibatis.executor.BaseExecutor.query(BaseExecutor.java:1<em>3</em>7) at org.apache.ibatis.executor.<em>C</em>achingExecutor.query(<em>C</em>achingExecutor.java:96) at org.apache.ibatis.executor.<em>C</em>achingExecutor.query(<em>C</em>achingExecutor.java:77) at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:1<em>0</em>8) at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:1<em>0</em>2) at org.apache.ibatis.session.defaults.DefaultSqlSession.selectOne(DefaultSqlSession.java:66) at sun.reflect.NativeMethodAccessorImpl.invoke<em>0</em>(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:4<em>3</em>) at java.lang.reflect.Method.invoke(Method.java:498) at org.mybatis.<em>spring</em>.SqlSessionTemplate$SqlSessionInterceptor.invoke(SqlSessionTemplate.java:<em>3</em>58) at com.sun.proxy.$<em>P</em>roxy<em>3</em><em>0</em>.selectOne(Unknown Source) at org.mybatis.<em>spring</em>.SqlSessionTemplate.selectOne(SqlSessionTemplate.java:16<em>3</em>) at org.apache.ibatis.binding.MapperMethod.execute(MapperMethod.java:68) at org.apache.ibatis.binding.Mapper<em>P</em>roxy.invoke(Mapper<em>P</em>roxy.java:52) at com.sun.proxy.$<em>P</em>roxy<em>3</em>1.selectBy<em>P</em>rimaryKey(Unknown Source) at com.taotao.service.impl.ItemServiceImpl.getItemById(ItemServiceImpl.java:24) at sun.reflect.NativeMethodAccessorImpl.invoke<em>0</em>(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:4<em>3</em>) at java.lang.reflect.Method.invoke(Method.java:498) at org.<em>spring</em>framework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:<em>3</em>17) at org.<em>spring</em>framework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:19<em>0</em>) at org.<em>spring</em>framework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:157) at org.<em>spring</em>framework.transaction.interceptor.TransactionInterceptor$1.proceedWithInvocation(TransactionInterceptor.java:99) at org.<em>spring</em>framework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:267) at org.<em>spring</em>framework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:96) at org.<em>spring</em>framework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179) at org.<em>spring</em>framework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:92) at org.<em>spring</em>framework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179) at org.<em>spring</em>framework.aop.framework.JdkDynamicAop<em>P</em>roxy.invoke(JdkDynamicAop<em>P</em>roxy.java:2<em>0</em>7) at com.sun.proxy.$<em>P</em>roxy<em>3</em>4.getItemById(Unknown Source) at com.taotao.controller.Item<em>C</em>ontroller.getItemById(Item<em>C</em>ontroller.java:27) at sun.reflect.NativeMethodAccessorImpl.invoke<em>0</em>(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:4<em>3</em>) at java.lang.reflect.Method.invoke(Method.java:498) at org.<em>spring</em>framework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:221) at org.<em>spring</em>framework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:1<em>3</em>7) at org.<em>spring</em>framework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:11<em>0</em>) at org.<em>spring</em>framework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandleMethod(RequestMappingHandlerAdapter.java:777) at org.<em>spring</em>framework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:7<em>0</em>6) at org.<em>spring</em>framework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:85) at org.<em>spring</em>framework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:94<em>3</em>) at org.<em>spring</em>framework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:877) at org.<em>spring</em>framework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:966) at org.<em>spring</em>framework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:857) at javax.servlet.http.HttpServlet.service(HttpServlet.java:621) at org.<em>spring</em>framework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:842) at javax.servlet.http.HttpServlet.service(HttpServlet.java:728) at org.apache.catalina.core.ApplicationFilter<em>C</em>hain.internalDoFilter(ApplicationFilter<em>C</em>hain.java:<em>3</em><em>0</em>5) at org.apache.catalina.core.ApplicationFilter<em>C</em>hain.doFilter(ApplicationFilter<em>C</em>hain.java:21<em>0</em>) at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:51) at org.apache.catalina.core.ApplicationFilter<em>C</em>hain.internalDoFilter(ApplicationFilter<em>C</em>hain.java:24<em>3</em>) at org.apache.catalina.core.ApplicationFilter<em>C</em>hain.doFilter(ApplicationFilter<em>C</em>hain.java:21<em>0</em>) at org.<em>spring</em>framework.web.filter.<em>C</em>haracterEncodingFilter.doFilterInternal(<em>C</em>haracterEncodingFilter.java:88) at org.<em>spring</em>framework.web.filter.Once<em>P</em>erRequestFilter.doFilter(Once<em>P</em>erRequestFilter.java:1<em>0</em>7) at org.apache.catalina.core.ApplicationFilter<em>C</em>hain.internalDoFilter(ApplicationFilter<em>C</em>hain.java:24<em>3</em>) at org.apache.catalina.core.ApplicationFilter<em>C</em>hain.doFilter(ApplicationFilter<em>C</em>hain.java:21<em>0</em>) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:222) at org.apache.catalina.core.Standard<em>C</em>ontextValve.invoke(Standard<em>C</em>ontextValve.java:12<em>3</em>) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:5<em>0</em>2) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:1<em>0</em><em>0</em>) at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:95<em>3</em>) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118) at org.apache.catalina.connector.<em>C</em>oyoteAdapter.service(<em>C</em>oyoteAdapter.java:4<em>0</em>8) at org.apache.coyote.http11.AbstractHttp11<em>P</em>rocessor.process(AbstractHttp11<em>P</em>rocessor.java:1<em>0</em>41) at org.apache.coyote.Abstract<em>P</em>rotocol$Abstract<em>C</em>onnectionHandler.process(Abstract<em>P</em>rotocol.java:6<em>0</em><em>3</em>) at org.apache.tomcat.util.net.JIoEndpoint$Socket<em>P</em>rocessor.run(JIoEndpoint.java:<em>3</em>1<em>0</em>) at java.util.concurrent.Thread<em>P</em>oolExecutor.runWorker(Thread<em>P</em>oolExecutor.java:1149) at java.util.concurrent.Thread<em>P</em>oolExecutor$Worker.run(Thread<em>P</em>oolExecutor.java:624) at java.lang.Thread.run(Thread.java:748) db.properties<em>配置</em>为 jdbc.driver=com.mysql.cj.jdbc.Driver jdbc.url=jdbc:mysql://localhost:<em>3</em><em>3</em><em>0</em>6/taotao?useSSL=false&serverTimezone=GMT%2B8&useUnicode=true&characterEncoding=UTF8 jdbc.username=root jdbc.password=12<em>3</em> 连接池<em>配置</em>

Myeclipse项目添加spring支持,使包名有提示的方法。

Myeclipse自带了<em>spring</em>支持,写<em>spring</em><em>配置</em>文件时,不像eclipse要导入约束文件,要想有包名提示还要安转STS插件那么麻烦。 使myeclipse编写<em>spring</em><em>配置</em>文件时,有包名提示的方法。 一>项目右键MyeclipseAdd Spring capabilities.这里可以帮忙导入<em>spring</em>项目所需要的核心jar包next这里可以 定义sprin

ElasticSearch启动错误锦集

1.Exception in thread &quot;main&quot; java.lang.Unsupported<em>C</em>lassVersionError: org/elasticsearch/common/transport/TransportAddress : Unsupported major.minor version 52.<em>0</em> /Library/Java/JavaVirtualMachines/jdk1...

请教c3p0获取连接阻塞的问题

进行性能测试的时候经过一段时间的运行,系统停止响应 从数据库端看,连接全部sleep状态,没有阻塞 导出线程信息,发现存在一些阻塞信息 不知哪位大哥碰到过这种情况,请帮忙分析一下 系统<em>配置</em>如下: to

请问有没有人知道c3p0连接池配置文件报错,下面是具体报错内容

Invalid property 'driver<em>C</em>lassName' of bean class [com.mchange.v2.c<em>3</em>p<em>0</em>.<em>C</em>ombo<em>P</em>ooledDataSource]: Bean property 'driver<em>C</em>lassName' is not writable or has an invalid setter method. Does the parameter type of the setter match the return type of the getter?

C3P0连接池连接总是报错,怎么解决,急求!

环境:开发软件idea,数据库:mysql8.<em>0</em>,jar包采用 c<em>3</em>p<em>0</em>-<em>0</em>.9.5.2.jar,mchange-commons-java-<em>0</em>.2.15.jar,mysql-connector-jav

SSM+shiro配置事务aop后启动报错

    今天在SSM+shiro框架中<em>配置</em>了事务的aop然后直接启动报错:

配置Spring数据源c3p0与dbcp

copy from http://blog.sina.com.cn/s/blog_5e<em>3</em>fc5cf<em>0</em>1<em>0</em><em>0</em>dnvx.html   不管通过何种持久化技术,都必须通过数据连接访问数据库,在Spring中,数据连接是通过数据源获得的。在以往的应用中,数据源一般是 Web应用服务器提供的。在Spring中,你不但可以通过JNDI获取应用服务器的数据源,也可以直接在Spring容器中<em>配置</em>数据源,此外,...

Spring 集成myBatis处理多数据源Mysql/Oracle双写遇到的问题及处理方案

<em>问题</em> 最近公司想把原Oracle数据库都迁移到Mysql,这个切换需要一段时间过渡,所以存在Oracle、Mysql在项目中同时使用的情况。这样就需要使用多数据源的技术。多数据源<em>配置</em>本身比较简单,但有一个场景出现了<em>问题</em>。考虑如下代码: // 通过try-catch实现insertOrUpdate Data data = new Data(); try{ dataM...

Cause: org.springframework.jdbc.CannotGetJdbcConnectionException: Could not get JDBC Connection;

这几天在用maven写项目 过程中遇到一个坑 是本人粗心大意了 一直报错No suitable driver 然后就一心去找这个错误 网上找了很多遍 大部分都是说oracle驱动<em>问题</em>  于是我怀疑是不是我在maven命令中加入oracle驱动出了<em>问题</em> 但事实证明没有错误 (maven命令下面附图) 驱动换了好几个 依然报错  ojdbc6-11.1.<em>0</em>.6.<em>0</em>这个驱动 会多报一个错 说是这个...

oracle数据库jdbc连接异常

[code=&quot;java&quot;]org.<em>spring</em>framework.dao.DataAccessResourceFailureException: Error retrieving database metadata; nested exception is org.<em>spring</em>framework.jdbc.support.MetaDataAccessException: JDB<em>C</em> Database...

Could not get JDBC Connection

org.mybatis.<em>spring</em>.MyBatisSystemException: nested exception is org.apache.ibatis.exceptions.<em>P</em>ersistenceException: ### Error querying database. <em>C</em>ause: org.<em>spring</em>framework.jdbc.<em>C</em>annotGetJdbc<em>C</em>onnectionException: <em>C</em>ould not get JDB<em>C</em> <em>C</em>onnection; nested exception is org.apache.commons.dbcp.SQLNestedException: <em>C</em>annot load JDB<em>C</em> driver class 'com.microsoft.sqlserver.jdbc.SQLServerDriver' ### The error may exist in cn/drzk/wanda/cinema/dao/form/dao/TicketsFromDao.java (best guess) ### The error may involve cn.drzk.wanda.cinema.dao.form.dao.TicketsFromDao.count ### The error occurred while executing a query ### <em>C</em>ause: org.<em>spring</em>framework.jdbc.<em>C</em>annotGetJdbc<em>C</em>onnectionException: <em>C</em>ould not get JDB<em>C</em> <em>C</em>onnection; nested exception is org.apache.commons.dbcp.SQLNestedException: <em>C</em>annot load JDB<em>C</em> driver class 'com.microsoft.sqlserver.jdbc.SQLServerDriver'

maven项目用tomcat启动一直无法连接数据库!!Could not get JDBC Connection

十二月 <em>0</em>4, 2<em>0</em>17 12:54:55 上午 org.apache.catalina.core.StandardWrapperValve invoke 严重: Servlet.service()

c3p0参数的说明以及整合spring使用

准备需要的jar包,如下:这些jar包,我已经放到后面贴的源码里了,可自行下载。列出常用的c<em>3</em>p<em>0</em>参数的<em>配置</em>: u

数据库连接池技术中dbcp、c3p0、jndi

不管通过何种持久化技术,都必须通过数据连接访问数据库,在Spring中,数据连接是通过数据源获得的。在以往的应用中,数据源一般是 Web应用服务器提供的。在Spring中,你不但可以通过JNDI获取应用服务器的数据源,也可以直接在Spring容器中<em>配置</em>数据源,此外,你还可以通过代码的方式创建一个数据源,以便进行无依赖的单元测试 <em>配置</em>一个数据源 Spring在第三方依赖包中包含了两个数据...

Spring获取不到数据库连接

xml<em>配置</em>文件如下: dao层类代码如下: @Repository public class RemindDaoImpl implements IRemindDao { @Autowired private JdbcTemplate jdbcTemplate; @Override public List> queryRemind() { String sql = ""; System.out.println(jdbcTemplate); return null; } } 入口程序如下: public static void main( String[] args ) { Application<em>C</em>ontext context = new <em>C</em>lass<em>P</em>athXmlApplication<em>C</em>ontext("application<em>C</em>ontext.xml"); RemindDaoImpl dao = new RemindDaoImpl(); dao.queryRemind(); System.out.println( "Hello World!" ); } 输出的jdbcTemplate为null,请帮忙看一下怎么回事

org.springframework.jdbc.CannotGetJdbcConnectionException: Could not get JDBC Connection;

The last packet sent successfully to the server was <em>0</em> milliseconds ago. The driver has not received any packets from the server. at org.mybatis.<em>spring</em>.MyBatisExceptionTranslator.translateExceptionIf<em>P</em>...

spring配置c3p0连接池源码

1. 其中,com.mchange.v2.c<em>3</em>p<em>0</em>.combo<em>P</em>ooledDataSource表示导入的jar包 2.&lt;/ property&gt; 表示注入driver<em>C</em>lass的属性值,加载mysql数据库驱动 <em>3</em>.&lt;property name= "jdbcUrL”value= “jdbc :mysqL:///<em>spring</em>_ day<em>0</em><em>3</em>”&gt;&lt;/ property&gt;...

SpringMVC+mybatis做添加与修改时提示下列信息,不能进行添加修改

org.<em>spring</em>framework.beans.factory.xml.XmlBeanDefinitionReader.loadBeanDefinitions | Loading XML bean definitions from class path resource [org/<em>spring</em>framework/jdbc/support/sql-error-codes.xml] 2<em>0</em>17-<em>0</em><em>3</em>-17 11:52:<em>0</em>5.587 INFO [http-8<em>0</em>8<em>0</em>-1] org.<em>spring</em>framework.jdbc.support.SQLError<em>C</em>odesFactory. | SQLError<em>C</em>odes loaded: [DB2, Derby, H2, HSQL, Informix, MS-SQL, MySQL, Oracle, <em>P</em>ostgreSQL, Sybase]

Mybatis异常-SQLErrorCodes loaded: [DB2, Derby, H2, HSQL, Informix, MS-SQL, MySQL, Oracle, PostgreSQL,

运行环境SpringBootMybatis异常摘要2<em>0</em>16-<em>0</em>1-14-14-22 [http-nio-8<em>0</em>82-exec-1] [org.<em>spring</em>framework.beans.factory.xml.XmlBeanDefinitionReader] [INFO] - Loading XML bean definitions from class path resource [org/spri

spring+ibatis 不打印错误信息

最近学习Spring+ibatis的时候 碰到一个<em>问题</em>:部分代码如下   msgTempSend.setSendtype("2222222222222"); public Object insertStudent(Student student) { return sqlMap<em>C</em>lientTemplate.insert("Student.insertStuden

spring中连接数据库连接池

1. 导入相关的依赖 这里将jdbc、DB<em>C</em><em>P</em>、<em>C</em><em>3</em><em>P</em><em>0</em>的包都进行了导入 &lt;!-- https://mvnrepository.com/artifact/org.<em>spring</em>framework/<em>spring</em>-jdbc --&gt; &lt;dependency&gt; &lt;groupId&gt;org.<em>spring</em>framework&lt;/groupId&gt; &...

c3p0和jdbc是什么关系?我们使用c3p0时需要用jdbc吗?

今天用到了阿里巴巴的Durid,看到有人在网上将jdbc,c<em>3</em>p<em>0</em>和Druid这三个连接池进行比较,我想问在使用c<em>3</em>p<em>0</em>时会用到jdbc吗?他的底层是jdbc编写的吗?

spring配置数据源连接池(c3p0)

我是maven工程application.xml&amp;lt;?xml version=&quot;1.<em>0</em>&quot; encoding=&quot;UTF-8&quot;?&amp;gt; &amp;lt;beans xmlns=&quot;http://www.<em>spring</em>framework.org/schema/beans&quot; xmlns:xsi=&quot;http://www.w<em>3</em>.org/2<em>0</em><em>0</em>1/XMLSchema-instance&quot; xmlns:d...

Spring+C3P0数据库连接池配置

jdb

c3p0连接池配置以及和spring结合的例子

1、导入jar包,记得还需要你的数据库的连接驱动,我的是mysql-connector-java。 &amp;lt;dependency&amp;gt; &amp;lt;groupId&amp;gt;com.mchange&amp;lt;/groupId&amp;gt; &amp;lt;artifactId&amp;gt;c<em>3</em>p<em>0</em>&amp;lt;/artifactId&amp;gt; &amp;lt;versi...

springmvc的c3p0数据库连接池的配置

一、引入外部导入文件的<em>配置</em>方式: 1.文件:jdbc.properties #我用username连不通数据库,直接用user; #driver=com.mysql.jdbc.Driver低版本的<em>配置</em> driver=com.mysql.cj.jdbc.Driver url=jdbc:mysql://localhost:<em>3</em><em>3</em><em>0</em>6/yourdatabase user=root passw...

看下这个错误是什么原因!

at org.apache.coyote.http11.Http11<em>P</em>rotocol$Http11<em>C</em>onnectionHandler.process<em>C</em>onnection(Http11<em>P</em>rotocol.

BoneCP 的disableConnectionTracking配置

最近在项目中会偶然出现该信息: Bone<em>C</em><em>P</em> detected an unclosed connection and will now attempt to close it for you. You should be closing this connection in your application  - enable connectionWatch for additional de

ibatis oracle连接异常关闭

2<em>0</em>16-<em>0</em>7-<em>0</em>4 11:<em>0</em>1:5<em>0</em>,762 INFO [org.<em>spring</em>framework.jdbc.support.SQLError<em>C</em>odesFactory] - SQLError<em>C</em>odes loaded: [DB2, Derby, H2, HSQL, Informix, MS-SQL, MySQL, Oracle, <em>P</em>ostgreSQL, Sybase] 2<em>0</em>16-<em>0</em>7-<em>0</em>4 11:<em>0</em>2:11,795 WARN [org.<em>spring</em>framework.jdbc.support.SQLError<em>C</em>odesFactory] - Error while extracting database product name - falling back to empty error codes org.<em>spring</em>framework.jdbc.support.MetaDataAccessException: Error while extracting DatabaseMetaData; nested exception is org.apache.commons.dbcp.SQLNestedException: <em>C</em>annot create <em>P</em>oolable<em>C</em>onnectionFactory (IO 错误: The Network Adapter could not establish the connection) at org.<em>spring</em>framework.jdbc.support.JdbcUtils.extractDatabaseMetaData(JdbcUtils.java:296) at org.<em>spring</em>framework.jdbc.support.JdbcUtils.extractDatabaseMetaData(JdbcUtils.java:<em>3</em>2<em>0</em>) at org.<em>spring</em>framework.jdbc.support.SQLError<em>C</em>odesFactory.getError<em>C</em>odes(SQLError<em>C</em>odesFactory.java:212) at org.<em>spring</em>framework.jdbc.support.SQLError<em>C</em>odeSQLExceptionTranslator.setDataSource(SQLError<em>C</em>odeSQLExceptionTranslator.java:141) at org.<em>spring</em>framework.jdbc.support.SQLError<em>C</em>odeSQLExceptionTranslator.(SQLError<em>C</em>odeSQLExceptionTranslator.java:1<em>0</em>4) at org.mybatis.<em>spring</em>.MyBatisExceptionTranslator.initExceptionTranslator(MyBatisExceptionTranslator.java:8<em>3</em>) at org.mybatis.<em>spring</em>.MyBatisExceptionTranslator.translateExceptionIf<em>P</em>ossible(MyBatisExceptionTranslator.java:7<em>0</em>) at org.mybatis.<em>spring</em>.SqlSessionTemplate$SqlSessionInterceptor.invoke(SqlSessionTemplate.java:<em>3</em>64) at sun.proxy.$<em>P</em>roxy8.selectOne(Unknown Source) at org.mybatis.<em>spring</em>.SqlSessionTemplate.selectOne(SqlSessionTemplate.java:159) at org.apache.ibatis.binding.MapperMethod.execute(MapperMethod.java:66) at org.apache.ibatis.binding.Mapper<em>P</em>roxy.invoke(Mapper<em>P</em>roxy.java:<em>3</em>5) at sun.proxy.$<em>P</em>roxy18.selectByAaaaId(Unknown Source) at com.richeninfo.esop.kms.admin.dao.KmsAdminDao.selectByAaaaId(KmsAdminDao.java:58) at com.richeninfo.esop.kms.admin.service.KmsAdminManager.selectByAaaaId(KmsAdminManager.java:77) at com.richeninfo.esop.kms.admin.controller.Admin<em>C</em>ontroller.login(Admin<em>C</em>ontroller.java:2<em>0</em>1) at sun.reflect.NativeMethodAccessorImpl.invoke<em>0</em>(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.lang.reflect.Method.invoke(Unknown Source) at org.<em>spring</em>framework.web.servlet.mvc.multiaction.MultiAction<em>C</em>ontroller.invokeNamedMethod(MultiAction<em>C</em>ontroller.java:471) at org.<em>spring</em>framework.web.servlet.mvc.multiaction.MultiAction<em>C</em>ontroller.handleRequestInternal(MultiAction<em>C</em>ontroller.java:4<em>0</em>8) at org.<em>spring</em>framework.web.servlet.mvc.Abstract<em>C</em>ontroller.handleRequest(Abstract<em>C</em>ontroller.java:15<em>3</em>) at org.<em>spring</em>framework.web.servlet.mvc.Simple<em>C</em>ontrollerHandlerAdapter.handle(Simple<em>C</em>ontrollerHandlerAdapter.java:48) at org.<em>spring</em>framework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:774) at org.<em>spring</em>framework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:719) at org.<em>spring</em>framework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:644) at org.<em>spring</em>framework.web.servlet.FrameworkServlet.do<em>P</em>ost(FrameworkServlet.java:56<em>0</em>) at javax.servlet.http.HttpServlet.service(HttpServlet.java:6<em>3</em>7) at javax.servlet.http.HttpServlet.service(HttpServlet.java:717) at org.apache.catalina.core.ApplicationFilter<em>C</em>hain.internalDoFilter(ApplicationFilter<em>C</em>hain.java:29<em>0</em>) at org.apache.catalina.core.ApplicationFilter<em>C</em>hain.doFilter(ApplicationFilter<em>C</em>hain.java:2<em>0</em>6) at javacommon.filter.LoggerMD<em>C</em>Filter.doFilterInternal(LoggerMD<em>C</em>Filter.java:4<em>3</em>) at org.<em>spring</em>framework.web.filter.Once<em>P</em>erRequestFilter.doFilter(Once<em>P</em>erRequestFilter.java:76) at org.apache.catalina.core.ApplicationFilter<em>C</em>hain.internalDoFilter(ApplicationFilter<em>C</em>hain.java:2<em>3</em>5) at org.apache.catalina.core.ApplicationFilter<em>C</em>hain.doFilter(ApplicationFilter<em>C</em>hain.java:2<em>0</em>6) at org.<em>spring</em>framework.web.filter.<em>C</em>haracterEncodingFilter.doFilterInternal(<em>C</em>haracterEncodingFilter.java:88) at org.<em>spring</em>framework.web.filter.Once<em>P</em>erRequestFilter.doFilter(Once<em>P</em>erRequestFilter.java:76) at org.apache.catalina.core.ApplicationFilter<em>C</em>hain.internalDoFilter(ApplicationFilter<em>C</em>hain.java:2<em>3</em>5) at org.apache.catalina.core.ApplicationFilter<em>C</em>hain.doFilter(ApplicationFilter<em>C</em>hain.java:2<em>0</em>6) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:2<em>3</em><em>3</em>) at org.apache.catalina.core.Standard<em>C</em>ontextValve.invoke(Standard<em>C</em>ontextValve.java:191) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:1<em>0</em>2) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:1<em>0</em>9) at org.apache.catalina.connector.<em>C</em>oyoteAdapter.service(<em>C</em>oyoteAdapter.java:298) at org.apache.coyote.http11.Http11<em>P</em>rocessor.process(Http11<em>P</em>rocessor.java:857) at org.apache.coyote.http11.Http11<em>P</em>rotocol$Http11<em>C</em>onnectionHandler.process(Http11<em>P</em>rotocol.java:588) at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489) at java.lang.Thread.run(Unknown Source) <em>C</em>aused by: org.apache.commons.dbcp.SQLNestedException: <em>C</em>annot create <em>P</em>oolable<em>C</em>onnectionFactory (IO 错误: The Network Adapter could not establish the connection) at org.apache.commons.dbcp.BasicDataSource.createDataSource(BasicDataSource.java:855) at org.apache.commons.dbcp.BasicDataSource.get<em>C</em>onnection(BasicDataSource.java:54<em>0</em>) at sun.reflect.NativeMethodAccessorImpl.invoke<em>0</em>(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.lang.reflect.Method.invoke(Unknown Source) at org.<em>spring</em>framework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:<em>3</em><em>0</em>9) at org.<em>spring</em>framework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:18<em>3</em>) at org.<em>spring</em>framework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:15<em>0</em>) at net.sf.log4jdbc.DataSourceSpyInterceptor.invoke(DataSourceSpyInterceptor.java:2<em>0</em>) at org.<em>spring</em>framework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172) at org.<em>spring</em>framework.aop.framework.JdkDynamicAop<em>P</em>roxy.invoke(JdkDynamicAop<em>P</em>roxy.java:2<em>0</em>2) at sun.proxy.$<em>P</em>roxy6.get<em>C</em>onnection(Unknown Source) at org.<em>spring</em>framework.jdbc.datasource.DataSourceUtils.doGet<em>C</em>onnection(DataSourceUtils.java:111) at org.<em>spring</em>framework.jdbc.datasource.TransactionAwareDataSource<em>P</em>roxy$TransactionAwareInvocationHandler.invoke(TransactionAwareDataSource<em>P</em>roxy.java:214) at sun.proxy.$<em>P</em>roxy19.getMetaData(Unknown Source) at org.<em>spring</em>framework.jdbc.support.JdbcUtils.extractDatabaseMetaData(JdbcUtils.java:285) ... 49 more <em>C</em>aused by: java.sql.SQLException: IO 错误: The Network Adapter could not establish the connection at oracle.jdbc.driver.T4<em>C</em><em>C</em>onnection.logon(T4<em>C</em><em>C</em>onnection.java:419) at oracle.jdbc.driver.<em>P</em>hysical<em>C</em>onnection.(<em>P</em>hysical<em>C</em>onnection.java:5<em>3</em>6) at oracle.jdbc.driver.T4<em>C</em><em>C</em>onnection.(T4<em>C</em><em>C</em>onnection.java:228) at oracle.jdbc.driver.T4<em>C</em>DriverExtension.get<em>C</em>onnection(T4<em>C</em>DriverExtension.java:<em>3</em>2) at oracle.jdbc.driver.OracleDriver.connect(OracleDriver.java:521) at org.apache.commons.dbcp.Driver<em>C</em>onnectionFactory.create<em>C</em>onnection(Driver<em>C</em>onnectionFactory.java:<em>3</em>7) at org.apache.commons.dbcp.<em>P</em>oolable<em>C</em>onnectionFactory.makeObject(<em>P</em>oolable<em>C</em>onnectionFactory.java:29<em>0</em>) at org.apache.commons.dbcp.BasicDataSource.validate<em>C</em>onnectionFactory(BasicDataSource.java:877) at org.apache.commons.dbcp.BasicDataSource.createDataSource(BasicDataSource.java:851) ... 65 more <em>C</em>aused by: oracle.net.ns.NetException: The Network Adapter could not establish the connection at oracle.net.nt.<em>C</em>onnStrategy.execute(<em>C</em>onnStrategy.java:<em>3</em>75) at oracle.net.resolver.AddrResolution.resolveAndExecute(AddrResolution.java:422) at oracle.net.ns.NS<em>P</em>rotocol.establish<em>C</em>onnection(NS<em>P</em>rotocol.java:678) at oracle.net.ns.NS<em>P</em>rotocol.connect(NS<em>P</em>rotocol.java:2<em>3</em>8) at oracle.jdbc.driver.T4<em>C</em><em>C</em>onnection.connect(T4<em>C</em><em>C</em>onnection.java:1<em>0</em>54) at oracle.jdbc.driver.T4<em>C</em><em>C</em>onnection.logon(T4<em>C</em><em>C</em>onnection.java:<em>3</em><em>0</em>8) ... 7<em>3</em> more <em>C</em>aused by: java.net.<em>C</em>onnectException: <em>C</em>onnection timed out: connect at java.net.<em>P</em>lainSocketImpl.socket<em>C</em>onnect(Native Method) at java.net.<em>P</em>lainSocketImpl.do<em>C</em>onnect(Unknown Source) at java.net.<em>P</em>lainSocketImpl.connectToAddress(Unknown Source) at java.net.<em>P</em>lainSocketImpl.connect(Unknown Source) at java.net.SocksSocketImpl.connect(Unknown Source) at java.net.Socket.connect(Unknown Source) at oracle.net.nt.TcpNTAdapter.connect(TcpNTAdapter.java:2<em>0</em>1) at oracle.net.nt.<em>C</em>onnOption.connect(<em>C</em>onnOption.java:12<em>3</em>) at oracle.net.nt.<em>C</em>onnStrategy.execute(<em>C</em>onnStrategy.java:<em>3</em>5<em>3</em>) ... 78 more org.<em>spring</em>framework.jdbc.UncategorizedSQLException:

springboot 整合mybatis 访问数据库时 一直报NULL异常 麻烦大佬看下 是不是datasource有问题..

异常是: 2<em>0</em>18-<em>0</em>6-17 <em>0</em><em>0</em>:44:16.<em>0</em>5<em>3</em> ERROR 1<em>0</em>252 --- o.a.c.c.<em>C</em>.. : Servlet.service() for servlet in context

tomcat 关闭的连接

碰到N次tomcat报:“关闭的连接”。 部分异常堆栈如下: WARN [http-8<em>0</em>8<em>0</em>-<em>P</em>rocessor21] - Error while extracting database product name - falling back to empty error codes org.<em>spring</em>framework.jdbc.support.MetaDataAccessException: Error while extracting DatabaseMetaData; nested exception is java.sql.SQLException: 关闭的连接 <em>C</em>aused by: java.sql.SQLException: 关闭的连接 at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:112) at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:146) at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:2<em>0</em>8) at oracle.jdbc.driver.<em>P</em>hysical<em>C</em>onnection.getMetaData(<em>P</em>hysical<em>C</em>onnection.java:16<em>0</em>5) at org.apache.commons.dbcp.Delegating<em>C</em>onnection.getMetaData(Delegating<em>C</em>onnection.java:222) at sun.reflect.NativeMethodAccessorImpl.invoke<em>0</em>(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:<em>3</em>9) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at org.hibernate.jdbc.Borrowed<em>C</em>onnection<em>P</em>roxy.invoke(Borrowed<em>C</em>onnection<em>P</em>roxy.java:4<em>0</em>) ~~~~~~~~~~ 似乎是偶然网络中断一下,就会出现这个<em>问题</em>。出<em>问题</em>后,只有重启服务器。 开发环境下重启服务器也罢。 不知道生产环境下是怎样用Tomcat的(小型应用)。 [b]<em>问题</em>补充:[/b] 这个<em>问题</em>是可以重现的。 把网线拔掉,刷新页面,就会抛出“关闭的连接”异常。 再把网线插好,刷新页面,还是抛出这个错误。 [b]<em>问题</em>补充:[/b] 不知道是不是DB<em>C</em><em>P</em>连接池的<em>问题</em>。 在网络瞬断的情况下,导致DB<em>C</em><em>P</em>连接池不可用。 [b]<em>问题</em>补充:[/b] 是通过连接池使用数据库连接的,应该不可能存在显式的、关闭数据库连接的代码。

Springboot多数据源自动断开connection连接问题

单数据源<em>配置</em>,可以采用<em>spring</em>boot的自动加载mybatis, application.properties中<em>配置</em>如下:不需要特殊<em>配置</em>即可 @MapperScan("com.nox.dsp.dao") 采用这种自动加载dao层的形式 #<em>spring</em>.datasource.type = org.apache.commons.dbcp2.BasicDataSource #初始

Spring加载一些配置文件中不存在的bean,如DB2,SYBASE,Derby,H2等等,Error while extracting database product name

仔细看一下日志的输出 [] INFO [Timer-<em>0</em>] Loading XML bean definitions from class path resource [org/<em>spring</em>framework/jdbc/support/sql-error-codes.xml] [] DEBUG [Timer-<em>0</em>] Using JAX<em>P</em> provider [com.sun.org.apache.

jdbc of sqlite getClob()-- java.sql.SQLException: not implemented by SQLite JDBC driver

代码 当使用jdbc的时候 <em>C</em>onnection conn; Session s = sessionUtil.getSession(); try { conn = dataSource.get<em>C</em>onnection(); <em>P</em>reparedStatement ps = conn .prepareStatement("select * from T_ART

深入浅出设计模式(六):8.门面模式

8.门面模式(Facade)到蛋糕店买蛋糕,不需要知道蛋糕怎么制作,蛋糕房就是蛋糕的门面,屏蔽了制作蛋糕的细节,门面模式又称为外观模式。实际开发中,屏蔽了子模块内部的实现细节,只是将客户端需要的接口提供给客户。哪里会用到门面模式 网上商城有银行支付功能,而银行肯定不能将后台的数据库直接开放给网上商城使用,不同银行提供相应的支付接口,这样的支付接口对于银行而言就是一个门面。 薪资系统开发中,计算每个月

java.lang.AbstractMethodError: oracle.jdbc.driver.OracleDatabaseMetaData.getJDBCMajorVersion()I异常

在hibernate<em>3</em>.5.4,用oracle方言自动创建表出现如下错误:java.lang.AbstractMethodError: oracle.jdbc.driver.OracleDatabaseMetaData.getJDB<em>C</em>MajorVersion()I这是由于hibernate和oracle驱动的兼容<em>问题</em>造成的。oracle1<em>0</em>g除了了提供了老的class12.jar驱动外,还提供了ojdbc14.jar驱动,其位于:<em>C</em>:/oracle/jdbc/lib。class12.jar会造成

spring+JDBC出现连接不上异常,请问如何解决

org.<em>spring</em>framework.jdbc.<em>C</em>annotGetJdbc<em>C</em>onnectionException: <em>C</em>ould not get JDB<em>C</em> <em>C</em>onnection; nested exception is org.apache.commons.dbcp.SQLNestedException: <em>C</em>annot create <em>P</em>oolable<em>C</em>onnectionFactory (<em>C</em>ommunications link failure Last packet sent to the server was <em>0</em> ms ago.) at org.<em>spring</em>framework.jdbc.datasource.DataSourceUtils.get<em>C</em>onnection(DataSourceUtils.java:8<em>0</em>) at org.<em>spring</em>framework.jdbc.core.JdbcTemplate.execute(JdbcTemplate.java:6<em>3</em><em>0</em>) at org.<em>spring</em>framework.jdbc.core.JdbcTemplate.update(JdbcTemplate.java:9<em>0</em>9) at org.<em>spring</em>framework.jdbc.core.JdbcTemplate.update(JdbcTemplate.java:97<em>0</em>) at org.<em>spring</em>framework.jdbc.core.JdbcTemplate.update(JdbcTemplate.java:975) at cn.gong.service.impl.<em>P</em>ersonServiceImpl.insert(<em>P</em>ersonServiceImpl.java:<em>3</em><em>0</em>) at junit.test.JDB<em>C</em>test.test(JDB<em>C</em>test.java:2<em>3</em>) at sun.reflect.NativeMethodAccessorImpl.invoke<em>0</em>(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:4<em>3</em>) at java.lang.reflect.Method.invoke(Method.java:6<em>0</em>6) at org.junit.runners.model.FrameworkMethod$1.runReflective<em>C</em>all(FrameworkMethod.java:44) at org.junit.internal.runners.model.Reflective<em>C</em>allable.run(Reflective<em>C</em>allable.java:15) at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41) at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:2<em>0</em>) at org.junit.runners.BlockJUnit4<em>C</em>lassRunner.runNotIgnored(BlockJUnit4<em>C</em>lassRunner.java:79) at org.junit.runners.BlockJUnit4<em>C</em>lassRunner.run<em>C</em>hild(BlockJUnit4<em>C</em>lassRunner.java:71) at org.junit.runners.BlockJUnit4<em>C</em>lassRunner.run<em>C</em>hild(BlockJUnit4<em>C</em>lassRunner.java:49) at org.junit.runners.<em>P</em>arentRunner$<em>3</em>.run(<em>P</em>arentRunner.java:19<em>3</em>) at org.junit.runners.<em>P</em>arentRunner$1.schedule(<em>P</em>arentRunner.java:52) at org.junit.runners.<em>P</em>arentRunner.run<em>C</em>hildren(<em>P</em>arentRunner.java:191) at org.junit.runners.<em>P</em>arentRunner.access$<em>0</em><em>0</em><em>0</em>(<em>P</em>arentRunner.java:42) at org.junit.runners.<em>P</em>arentRunner$2.evaluate(<em>P</em>arentRunner.java:184) at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:28) at org.junit.runners.<em>P</em>arentRunner.run(<em>P</em>arentRunner.java:2<em>3</em>6) at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:5<em>0</em>) at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:<em>3</em>8) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:68<em>3</em>) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:<em>3</em>9<em>0</em>) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197) <em>C</em>aused by: org.apache.commons.dbcp.SQLNestedException: <em>C</em>annot create <em>P</em>oolable<em>C</em>onnectionFactory (<em>C</em>ommunications link failure Last packet sent to the server was <em>0</em> ms ago.) at org.apache.commons.dbcp.BasicDataSource.createDataSource(BasicDataSource.java:1225) at org.apache.commons.dbcp.BasicDataSource.get<em>C</em>onnection(BasicDataSource.java:88<em>0</em>) at org.<em>spring</em>framework.jdbc.datasource.DataSourceUtils.doGet<em>C</em>onnection(DataSourceUtils.java:111) at org.<em>spring</em>framework.jdbc.datasource.DataSourceUtils.get<em>C</em>onnection(DataSourceUtils.java:77) ... <em>3</em><em>0</em> more <em>C</em>aused by: com.mysql.jdbc.exceptions.jdbc4.<em>C</em>ommunicationsException: <em>C</em>ommunications link failure Last packet sent to the server was <em>0</em> ms ago. at sun.reflect.Native<em>C</em>onstructorAccessorImpl.newInstance<em>0</em>(Native Method) at sun.reflect.Native<em>C</em>onstructorAccessorImpl.newInstance(Native<em>C</em>onstructorAccessorImpl.java:57) at sun.reflect.Delegating<em>C</em>onstructorAccessorImpl.newInstance(Delegating<em>C</em>onstructorAccessorImpl.java:45) at java.lang.reflect.<em>C</em>onstructor.newInstance(<em>C</em>onstructor.java:526) at com.mysql.jdbc.Util.handleNewInstance(Util.java:4<em>0</em>6) at com.mysql.jdbc.SQLError.create<em>C</em>ommunicationsException(SQLError.java:1<em>0</em>74) at com.mysql.jdbc.<em>C</em>onnectionImpl.createNewIO(<em>C</em>onnectionImpl.java:212<em>0</em>) at com.mysql.jdbc.<em>C</em>onnectionImpl.(<em>C</em>onnectionImpl.java:72<em>3</em>) at com.mysql.jdbc.JDB<em>C</em>4<em>C</em>onnection.(JDB<em>C</em>4<em>C</em>onnection.java:46) at sun.reflect.Native<em>C</em>onstructorAccessorImpl.newInstance<em>0</em>(Native Method) at sun.reflect.Native<em>C</em>onstructorAccessorImpl.newInstance(Native<em>C</em>onstructorAccessorImpl.java:57) at sun.reflect.Delegating<em>C</em>onstructorAccessorImpl.newInstance(Delegating<em>C</em>onstructorAccessorImpl.java:45) at java.lang.reflect.<em>C</em>onstructor.newInstance(<em>C</em>onstructor.java:526) at com.mysql.jdbc.Util.handleNewInstance(Util.java:4<em>0</em>6) at com.mysql.jdbc.<em>C</em>onnectionImpl.getInstance(<em>C</em>onnectionImpl.java:<em>3</em><em>0</em>2) at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:282) at org.apache.commons.dbcp.Driver<em>C</em>onnectionFactory.create<em>C</em>onnection(Driver<em>C</em>onnectionFactory.java:<em>3</em>8) at org.apache.commons.dbcp.<em>P</em>oolable<em>C</em>onnectionFactory.makeObject(<em>P</em>oolable<em>C</em>onnectionFactory.java:294) at org.apache.commons.dbcp.BasicDataSource.validate<em>C</em>onnectionFactory(BasicDataSource.java:1247) at org.apache.commons.dbcp.BasicDataSource.createDataSource(BasicDataSource.java:1221) ... <em>3</em><em>3</em> more <em>C</em>aused by: com.mysql.jdbc.exceptions.jdbc4.<em>C</em>ommunicationsException: <em>C</em>ommunications link failure Last packet sent to the server was <em>0</em> ms ago. at sun.reflect.Native<em>C</em>onstructorAccessorImpl.newInstance<em>0</em>(Native Method) at sun.reflect.Native<em>C</em>onstructorAccessorImpl.newInstance(Native<em>C</em>onstructorAccessorImpl.java:57) at sun.reflect.Delegating<em>C</em>onstructorAccessorImpl.newInstance(Delegating<em>C</em>onstructorAccessorImpl.java:45) at java.lang.reflect.<em>C</em>onstructor.newInstance(<em>C</em>onstructor.java:526) at com.mysql.jdbc.Util.handleNewInstance(Util.java:4<em>0</em>6) at com.mysql.jdbc.SQLError.create<em>C</em>ommunicationsException(SQLError.java:1<em>0</em>74) at com.mysql.jdbc.MysqlIO.(MysqlIO.java:<em>3</em><em>3</em>5) at com.mysql.jdbc.<em>C</em>onnectionImpl.createNewIO(<em>C</em>onnectionImpl.java:2<em>0</em>4<em>3</em>) ... 46 more <em>C</em>aused by: java.net.<em>C</em>onnectException: <em>C</em>onnection refused: connect at java.net.DualStack<em>P</em>lainSocketImpl.connect<em>0</em>(Native Method) at java.net.DualStack<em>P</em>lainSocketImpl.socket<em>C</em>onnect(DualStack<em>P</em>lainSocketImpl.java:79) at java.net.Abstract<em>P</em>lainSocketImpl.do<em>C</em>onnect(Abstract<em>P</em>lainSocketImpl.java:<em>3</em><em>3</em>9) at java.net.Abstract<em>P</em>lainSocketImpl.connectToAddress(Abstract<em>P</em>lainSocketImpl.java:2<em>0</em><em>0</em>) at java.net.Abstract<em>P</em>lainSocketImpl.connect(Abstract<em>P</em>lainSocketImpl.java:182) at java.net.<em>P</em>lainSocketImpl.connect(<em>P</em>lainSocketImpl.java:172) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:<em>3</em>92) at java.net.Socket.connect(Socket.java:579) at java.net.Socket.connect(Socket.java:528) at java.net.Socket.(Socket.java:425) at java.net.Socket.(Socket.java:241) at com.mysql.jdbc.StandardSocketFactory.connect(StandardSocketFactory.java:25<em>3</em>) at com.mysql.jdbc.MysqlIO.(MysqlIO.java:284) ... 47 more

使用Spring的HibernateTemplate操作数据库时异常

使用Spring + Hibernate,使用HibernateTemplate访问数据库。 发生如下异常,意思是说连接数超出,当前用户的最大连接数是2<em>0</em>. 现在<em>问题</em>是: 1. 在这个最大连接数不能改

Could not get JDBC Connection; myeclipse中java项目导入的问题

严重: Exception starting filter <em>C</em>ommonFilter org.mybatis.<em>spring</em>.MyBatisSystemException: nested excepti

求助:SSM用c3p0连接mysql时Could not get JDBC Connection

【控制台log】 严重: Servlet.service() for servlet [<em>spring</em>_mvc] in context with path [/<em>P</em>_AI] threw exception [Request processing failed; nested exception is org.mybatis.<em>spring</em>.MyBatisSystemException: nested exception is org.apache.ibatis.exceptions.<em>P</em>ersistenceException: ### Error querying database. <em>C</em>ause: org.<em>spring</em>framework.jdbc.<em>C</em>annotGetJdbc<em>C</em>onnectionException: <em>C</em>ould not get JDB<em>C</em> <em>C</em>onnection; nested exception is java.sql.SQLException: <em>C</em>onnections could not be acquired from the underlying database! ### The error may exist in config/mybatis/mapper/<em>C</em>ommAdminMapper.xml ### The error may involve cn.java.demo.mapper.<em>C</em>ommAdminMapper.selectAdminByInfo ### The error occurred while executing a query ### <em>C</em>ause: org.<em>spring</em>framework.jdbc.<em>C</em>annotGetJdbc<em>C</em>onnectionException: <em>C</em>ould not get JDB<em>C</em> <em>C</em>onnection; nested exception is java.sql.SQLException: <em>C</em>onnections could not be acquired from the underlying database!] with root cause com.mchange.v2.resourcepool.<em>C</em>annotAcquireResourceException: A Resource<em>P</em>ool could not acquire a resource from its primary factory or source. at com.mchange.v2.resourcepool.BasicResource<em>P</em>ool.awaitAvailable(BasicResource<em>P</em>ool.java:1<em>0</em><em>0</em>2) at com.mchange.v2.resourcepool.BasicResource<em>P</em>ool.checkoutResource(BasicResource<em>P</em>ool.java:29<em>3</em>) at com.mchange.v2.c<em>3</em>p<em>0</em>.impl.<em>C</em><em>3</em><em>P</em><em>0</em><em>P</em>ooled<em>C</em>onnection<em>P</em>ool.checkout<em>P</em>ooled<em>C</em>onnection(<em>C</em><em>3</em><em>P</em><em>0</em><em>P</em>ooled<em>C</em>onnection<em>P</em>ool.java:<em>3</em>48) at com.mchange.v2.c<em>3</em>p<em>0</em>.<em>P</em>oolBackedDataSource.get<em>C</em>onnection(<em>P</em>oolBackedDataSource.java:12<em>0</em>) at com.mchange.v2.c<em>3</em>p<em>0</em>.<em>C</em>ombo<em>P</em>ooledDataSource.get<em>C</em>onnection(<em>C</em>ombo<em>P</em>ooledDataSource.java:6<em>0</em>1) at org.<em>spring</em>framework.jdbc.datasource.DataSourceUtils.doGet<em>C</em>onnection(DataSourceUtils.java:111) at org.<em>spring</em>framework.jdbc.datasource.DataSourceUtils.get<em>C</em>onnection(DataSourceUtils.java:77) at org.mybatis.<em>spring</em>.transaction.SpringManagedTransaction.open<em>C</em>onnection(SpringManagedTransaction.java:82) at org.mybatis.<em>spring</em>.transaction.SpringManagedTransaction.get<em>C</em>onnection(SpringManagedTransaction.java:68) at org.apache.ibatis.executor.BaseExecutor.get<em>C</em>onnection(BaseExecutor.java:<em>3</em><em>3</em>6) at org.apache.ibatis.executor.SimpleExecutor.prepareStatement(SimpleExecutor.java:84) at org.apache.ibatis.executor.SimpleExecutor.doQuery(SimpleExecutor.java:62) at org.apache.ibatis.executor.BaseExecutor.queryFromDatabase(BaseExecutor.java:<em>3</em>24) at org.apache.ibatis.executor.BaseExecutor.query(BaseExecutor.java:156) at org.apache.ibatis.executor.<em>C</em>achingExecutor.query(<em>C</em>achingExecutor.java:1<em>0</em>9) at org.apache.ibatis.executor.<em>C</em>achingExecutor.query(<em>C</em>achingExecutor.java:8<em>3</em>) at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:148) at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:141) at org.apache.ibatis.session.defaults.DefaultSqlSession.selectOne(DefaultSqlSession.java:77) at sun.reflect.NativeMethodAccessorImpl.invoke<em>0</em>(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:4<em>3</em>) at java.lang.reflect.Method.invoke(Method.java:498) at org.mybatis.<em>spring</em>.SqlSessionTemplate$SqlSessionInterceptor.invoke(SqlSessionTemplate.java:4<em>3</em><em>3</em>) at com.sun.proxy.$<em>P</em>roxy1<em>3</em>.selectOne(Unknown Source) at org.mybatis.<em>spring</em>.SqlSessionTemplate.selectOne(SqlSessionTemplate.java:166) at org.apache.ibatis.binding.MapperMethod.execute(MapperMethod.java:82) at org.apache.ibatis.binding.Mapper<em>P</em>roxy.invoke(Mapper<em>P</em>roxy.java:59) at com.sun.proxy.$<em>P</em>roxy14.selectAdminByInfo(Unknown Source) at cn.java.demo.dao.impl.<em>C</em>ommAdminDaoImpl.selectAdminByInfo(<em>C</em>ommAdminDaoImpl.java:21) at cn.java.demo.logic.impl.<em>C</em>ommAdminLogicImpl.selectAdminByInfo(<em>C</em>ommAdminLogicImpl.java:27) at sun.reflect.NativeMethodAccessorImpl.invoke<em>0</em>(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:4<em>3</em>) at java.lang.reflect.Method.invoke(Method.java:498) at org.<em>spring</em>framework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:<em>3</em>17) at org.<em>spring</em>framework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:19<em>0</em>) at org.<em>spring</em>framework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:157) at org.<em>spring</em>framework.transaction.interceptor.TransactionInterceptor$1.proceedWithInvocation(TransactionInterceptor.java:98) at org.<em>spring</em>framework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:262) at org.<em>spring</em>framework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:95) at org.<em>spring</em>framework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179) at org.<em>spring</em>framework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:92) at org.<em>spring</em>framework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179) at org.<em>spring</em>framework.aop.framework.JdkDynamicAop<em>P</em>roxy.invoke(JdkDynamicAop<em>P</em>roxy.java:2<em>0</em>7) at com.sun.proxy.$<em>P</em>roxy18.selectAdminByInfo(Unknown Source) at cn.java.demo.controller.<em>C</em>ommAdmin<em>C</em>ontroller.admin(<em>C</em>ommAdmin<em>C</em>ontroller.java:<em>3</em><em>3</em>) at sun.reflect.NativeMethodAccessorImpl.invoke<em>0</em>(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:4<em>3</em>) at java.lang.reflect.Method.invoke(Method.java:498) at org.<em>spring</em>framework.web.bind.annotation.support.HandlerMethodInvoker.invokeHandlerMethod(HandlerMethodInvoker.java:175) at org.<em>spring</em>framework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.invokeHandlerMethod(AnnotationMethodHandlerAdapter.java:446) at org.<em>spring</em>framework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.handle(AnnotationMethodHandlerAdapter.java:4<em>3</em>4) at org.<em>spring</em>framework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:9<em>3</em>8) at org.<em>spring</em>framework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:87<em>0</em>) at org.<em>spring</em>framework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:961) at org.<em>spring</em>framework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:852) at javax.servlet.http.HttpServlet.service(HttpServlet.java:6<em>3</em>5) at org.<em>spring</em>framework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:8<em>3</em>7) at javax.servlet.http.HttpServlet.service(HttpServlet.java:742) at org.apache.catalina.core.ApplicationFilter<em>C</em>hain.internalDoFilter(ApplicationFilter<em>C</em>hain.java:2<em>3</em>1) at org.apache.catalina.core.ApplicationFilter<em>C</em>hain.doFilter(ApplicationFilter<em>C</em>hain.java:166) at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) at org.apache.catalina.core.ApplicationFilter<em>C</em>hain.internalDoFilter(ApplicationFilter<em>C</em>hain.java:19<em>3</em>) at org.apache.catalina.core.ApplicationFilter<em>C</em>hain.doFilter(ApplicationFilter<em>C</em>hain.java:166) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:198) at org.apache.catalina.core.Standard<em>C</em>ontextValve.invoke(Standard<em>C</em>ontextValve.java:96) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:5<em>0</em>4) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:14<em>0</em>) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:81) at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:65<em>0</em>) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:87) at org.apache.catalina.connector.<em>C</em>oyoteAdapter.service(<em>C</em>oyoteAdapter.java:<em>3</em>42) at org.apache.coyote.http11.Http11<em>P</em>rocessor.service(Http11<em>P</em>rocessor.java:8<em>0</em><em>3</em>) at org.apache.coyote.Abstract<em>P</em>rocessorLight.process(Abstract<em>P</em>rocessorLight.java:66) at org.apache.coyote.Abstract<em>P</em>rotocol$<em>C</em>onnectionHandler.process(Abstract<em>P</em>rotocol.java:79<em>0</em>) at org.apache.tomcat.util.net.NioEndpoint$Socket<em>P</em>rocessor.doRun(NioEndpoint.java:1459) at org.apache.tomcat.util.net.Socket<em>P</em>rocessorBase.run(Socket<em>P</em>rocessorBase.java:49) at java.util.concurrent.Thread<em>P</em>oolExecutor.runWorker(Thread<em>P</em>oolExecutor.java:1149) at java.util.concurrent.Thread<em>P</em>oolExecutor$Worker.run(Thread<em>P</em>oolExecutor.java:624) at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) at java.lang.Thread.run(Thread.java:748)

Cause: org.springframework.jdbc.CannotGetJdbcConnectionException: Could not get JDBC Connection问题排查

一,我用的数据库访问错误 ### Error querying database.  <em>C</em>ause: org.<em>spring</em>framework.jdbc.<em>C</em>annotGetJdbc<em>C</em>onnectionException: <em>C</em>ould not get JDB<em>C</em> <em>C</em>onnection; nested exception is java.sql.SQLException: <em>C</em>annot create <em>P</em>o

SSM整合时报错org.springframework.jdbc.CannotGetJdbcConnectionException: Could not get JDBC Connection

org.mybatis.<em>spring</em>.MyBatisSystemException: nested exception is org.apache.ibatis.exceptions.<em>P</em>ersistenceException: ### Error querying database. <em>C</em>ause: org.<em>spring</em>framework.jdbc.<em>C</em>annotGetJdbc<em>C</em>onnectio...

Caused by: org.springframework.jdbc.CannotGetJdbcConnectionException: Could not get JDBC Connection;

ERROR o.s.s.s.TaskUtils$LoggingErrorHandler - Unexpected error occurred in scheduled task. org.mybatis.<em>spring</em>.MyBatisSystemException: nested exception is org.apache.ibatis.exceptions.<em>P</em>ersistenceExcep...

Could not get JDBC Connection; nested exception is java.sql.SQLException: Java d

<em>C</em>ould not get JDB<em>C</em> <em>C</em>onnection; nested exception is java.sql.SQLException: Java does not support the   最近在摸索tapestry5,<em>0</em>7年就出现的技术为啥资料如此至少哦,   <em>spring</em>+tapestry5 +mysql   在 连接数据库的时候,提示:<em>C</em>ould not get ...

Could not get JDBC Connection;的解决办法(未解决)(MyBatis和Spring整合开发DAO)

MyBatis和Spring整合开发DAO 工程结构 出现的错误:

使用spring容器配置c3p0连接池完成增删改查

上一篇详细写了c<em>3</em>p<em>0</em>连接池完成增删改查的全部过程链接如下:https://blog.csdn.net/qq_18725165/article/details/8<em>0</em>725267这篇是将c<em>3</em>p<em>0</em>的连接数据库的所有<em>配置</em>全部放到<em>spring</em>容器中完成。一、导包:    在之前4个包的基础上增加Spring的四个包和2个日志包(不过后来没有写日志文件)       二、<em>配置</em>Bean.xml    创建Be...

求助,java.sql.SQLException:流已被关闭

自己做的一个小的模拟邮件的项目, 在Mysql中正常完成并通过。。。。 当迁移到ORA<em>C</em>LE上的时候发生错误, 有两个类UserService合MailService, 继承于同一父类DaoSuppo

客户的访问服务器数据库sql-error-codes.xml error

2<em>0</em>14-<em>0</em>4-26 22:48:<em>3</em><em>3</em>,464Th<em>0</em>-1 xml.XmlBeanDefinitionReader Loading XML bean definitions from class pat

咨询一个关于数据库链接的问题Could not create connection to database server

<em>问题</em>描述: 一个 <em>spring</em>+mybatis 的web 工程, 使用 druid 做数据库链接池。 程序运行一段世界之后报错: <em>C</em>ould not create connection to data

Spring boot + mybatis 日期的问题

逆向工程生成的文件, 数据库是datetime类型的表 查询,插入 都会出错. mapper是 timestamp类型. po的成员类型 换过sql.date , String也尝试过 , 网上搜了好

日常问题:org/springframework/jdbc/support/sql-error-codes.xml

<em>问题</em>:    mybatis插入数据时,数据库为mysql,报错org/<em>spring</em>framework/jdbc/support/sql-error-codes.xml解决方案:    去除try catch    系统详细报出错误

The type org.springframework.jdbc.support.JdbcAccessor cannot be resolved.解决方法

我是在<em>spring</em>框架下用jdbcTemplate操作数据库时,出现这个错误。 其实,就是用mavem<em>配置</em>所需jar包时org.<em>spring</em>framework.jdbc.support.JdbcAccessor.class出现的错误,下载失败 解决办法: 第一步:右键项目,run as , maven test,检查还有哪些包有错 第二步: 根据出现错误的jar包到本地仓库去删除ja...

执行insert时候控制台打印[org/springframework/jdbc/support/sql-error-codes.xml]

[http-nio-112<em>3</em>-exec-4] INFO org.<em>spring</em>framework.beans.factory.xml.XmlBeanDefinitionReader - Loading XML bean definitions from class path resource [org/<em>spring</em>framework/jdbc/support/sql-error-codes.xml...

[org/springframework/jdbc/support/sql-error-codes.xml]

执行insert时候控制台打印[org/<em>spring</em>framework/jdbc/support/sql-error-codes.xml] https://blog.csdn.net/xiaogc_a/article/details/85<em>3</em><em>3</em>77<em>0</em>4 1http-nio-112<em>3</em>-exec-4] INFO org.<em>spring</em>framework.beans.factory.xm...

oracle.net.ns.NetException: NL Exception was generated

这两天修改了下数据库<em>配置</em>文件,结果后台出现下面错误信息,如下(主要关注红色部分) org.<em>spring</em>framework.jdbc.support.MetaDataAccessException: Error while extracting DatabaseMetaData; nested exception is org.apache.commons.dbcp.SQLNestedExcept

在中国程序员是青春饭吗?

今年,我也<em>3</em>2了 ,为了不给大家误导,咨询了猎头、圈内好友,以及年过<em>3</em>5岁的几位老程序员……舍了老脸去揭人家伤疤……希望能给大家以帮助,记得帮我点赞哦。 目录: 你以为的人生 一次又一次的伤害 猎头界的真相 如何应对互联网行业的「中年危机」 一、你以为的人生 刚入行时,拿着傲人的工资,想着好好干,以为我们的人生是这样的: 等真到了那一天,你会发现,你的人生很可能是这样的: ...

程序员请照顾好自己,周末病魔差点一套带走我。

程序员在一个周末的时间,得了重病,差点当场去世,还好及时挽救回来了。

keyshot7.0-X64.part2.rar下载

keyshot7.0-X64.part2.rar 相关下载链接:[url=//download.csdn.net/download/ghjk163ssc49v6hfg/10006302?utm_source=bbsseo]//download.csdn.net/download/ghjk163ssc49v6hfg/10006302?utm_source=bbsseo[/url]

java面试题库下载

java面试题题库,非常全面实用,java面试必备资源,不看后悔。 相关下载链接:[url=//download.csdn.net/download/u014676576/10540110?utm_source=bbsseo]//download.csdn.net/download/u014676576/10540110?utm_source=bbsseo[/url]

Visual C++课程设计案例精编--画图下载

Visual C++课程设计案例精编--画图 相关下载链接:[url=//download.csdn.net/download/wjh156304366/213935?utm_source=bbsseo]//download.csdn.net/download/wjh156304366/213935?utm_source=bbsseo[/url]

我们是很有底线的