ibatis+spring集成问题如何解决:-(

[dingding5060]

小弟最近在做struts+ibatis+spring集成的时候都能成功，但是在做一个功能的时候遇到了点小麻烦，描述如下：

在系统启动的时候我想调用ibatis的SqlMapClient对象去查询数据库，加载一些数据到内存中，而不是通过struts页面跳转，通过action触发并通过spring的注入得到SqlMapClient对象并操作数据的，我现在只是想通过一个普通的类DictionaryInit来加载一些数据，在这里用到的就只有ibatis+spring，但是我总是得不到SqlMapClient的实例，配置感觉没有什么不正确的地方，各代码如下：

DictionaryInit.java源代码：

package org.dhf.bbw.init;

import java.sql.SQLException;
import java.util.List;

import org.apache.log4j.Logger;
import org.dhf.bbw.admin.dictionary.bean.Dictionary;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;

import com.ibatis.sqlmap.client.SqlMapClient;

public class DictionaryInit {//extends SqlMapClientDaoSupport {//想通过继承SqlMapClientDaoSupport来得到SqlMapClient对象，也没能成功，总是空指针异常
	
	/**
	 * 获得Log4j日志处理类实例
	 */
	private Logger logger = Logger.getLogger(DictionaryInit.class);
	
	/**
	 * 单例模式
	 */
	private static DictionaryInit dicInit = new DictionaryInit();
	
	private DictionaryInit(){
		
	}
	
	public static DictionaryInit getInstance(){
		return dicInit;
	}
	
	protected SqlMapClient sqlMapClient;// = getSqlMapClientTemplate().getSqlMapClient();

	public List getAllParentNodetionary() {
		
//		ApplicationContext context = new ClassPathXmlApplicationContext("../applicationContext-dataSource.xml");
//		sqlMapClient = (SqlMapClient)context.getBean("sqlMapClient");
		
		List<Dictionary> reslutList = null;
		try {
			reslutList = sqlMapClient.queryForList("getAllParentNodetionary");
		} catch (SQLException e) {
			//打印错误日志
			logger.error("查询数据字典根节点出错：" + e.toString());
		}
		return reslutList;
	}
	
	public List getDictionaryByParentNode(int parentNode) {
		List<Dictionary> reslutList = null;
		try {
			reslutList = sqlMapClient.queryForList("getDictionaryByParentNode", parentNode);
		} catch (SQLException e) {
			//打印错误日志
			logger.error("查询数据字典子节点出错：" + e.toString());
		}
		return reslutList;
	}

	public void setSqlMapClient(SqlMapClient sqlMapClient) {
		this.sqlMapClient = sqlMapClient;
	}
}

applicationContext-dataSource.xml配置如下：

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE beans PUBLIC "-//SPRING//DTD BEAN//EN" "http://www.springframework.org/dtd/spring-beans.dtd">
<beans>
	<!-- DataSource -->
	<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close">
        <property name="driverClassName">
            <value>oracle.jdbc.driver.OracleDriver</value>
        </property>
        <property name="url">
            <value>jdbc:oracle:thin:@127.0.0.1:1521:BBW</value>
        </property>
        <property name="username">
            <value>bbw</value>
        </property>
        <property name="password">
            <value>bbw</value>
        </property>
    </bean>
    
	<!-- Spring iBatis SqlMapClient -->
    <bean id="sqlMapClient" class="org.springframework.orm.ibatis.SqlMapClientFactoryBean">
    	<property name="configLocation" value="/WEB-INF/sqlmap-config.xml"/>
    	<property name="dataSource" ref="dataSource"/>
  	</bean>
  	
	<!-- Spring iBatisTemplate -->
  	<bean id="sqlMapClientTemplate" class="org.springframework.orm.ibatis.SqlMapClientTemplate">
  		<property name="sqlMapClient">
  			<ref bean="sqlMapClient"/>
  		</property>
  	</bean>
</beans>

applicationContext.xml配置代码：

	<bean id="dictionaryInit" class="org.dhf.bbw.init.DictionaryInit">
		<property name="sqlMapClient">
			<ref bean="sqlMapClient"/>
		</property>
	</bean>

sqlmap-config.xml配置如下：

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE sqlMapConfig PUBLIC "-//ibatis.apache.org//DTD SQL Map Config 2.0//EN" "http://ibatis.apache.org/dtd/sql-map-config-2.dtd">
<sqlMapConfig>
  <sqlMap resource="org/dhf/bbw/admin/dictionary/bean/Dictionary.xml"/>
</sqlMapConfig>

Dictionary.xml配置如下：

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE sqlMap PUBLIC "-//ibatis.apache.org//DTD SQL Map 2.0//EN" "http://ibatis.apache.org/dtd/sql-map-2.dtd">
<sqlMap namespace="Dictionary">

	<typeAlias alias="dictionary" type="org.dhf.bbw.admin.dictionary.bean.Dictionary"/>
	
	<resultMap id="DictionaryResult" class="dictionary">
		<result property="recid" column="recid"/>
		<result property="parentNode" column="parentNode" select="getDictionaryByDicID"/>
		<result property="name" column="name"/>
		<result property="remark" column="remark"/>
		<result property="state" column="state"/>
	</resultMap>
	
	<select id="getAllParentNodetionary" resultMap="DictionaryResult">
		select * from BBW_Dictionary where parentNode is null
	</select>
	
	<select id="getDictionaryByDicID" parameterClass="int" resultMap="DictionaryResult">
		select * from BBW_Dictionary where recid = #value#
	</select>
	
	<select id="getDictionaryByParentNode" parameterClass="int" resultMap="DictionaryResult">
		select * from BBW_Dictionary where parentNode = #value#
	</select>
	
</sqlMap>

不知道是什么问题，总是得不到SqlMapClient对象，就只是少了struts的action的触发就不行了！跪拜...谢谢

[道光2008]

对了你的SystemInitServlet是怎么调用DictionaryInit的

[dingding5060]

[Quote=引用 24 楼 warison2008 的回复:]
改：
private SqlMapClient sqlMapClient;// = getSqlMapClientTemplate().getSqlMapClient();
并设置
get,set方法看看
[/Quote]


按照你的方法改的，我本来有set方法，按照你的意思加了get方法，现在DictionaryInit.java代码如下：

package org.dhf.bbw.init;

import java.sql.SQLException;
import java.util.List;

import javax.servlet.ServletContext;

import org.apache.log4j.Logger;
import org.dhf.bbw.admin.dictionary.bean.Dictionary;
import org.springframework.context.ApplicationContext;
import org.springframework.web.context.support.WebApplicationContextUtils;

import com.ibatis.sqlmap.client.SqlMapClient;

/**
 * 数据字典加载
 * @author dhf in 2010-1-18
 *
 */
public class DictionaryInit {
	
	/**
	 * 获得Log4j日志处理类实例
	 */
	private Logger logger = Logger.getLogger(DictionaryInit.class);
	
	/**
	 * 单例模式
	 */
	private static DictionaryInit dicInit = new DictionaryInit();
	
	private DictionaryInit(){
		
	}
	
	public static DictionaryInit getInstance(){
		return dicInit;
	}
	
	/**
	 * ibatis的SqlMapClient对象
	 */
	private SqlMapClient sqlMapClient;

	/**
	 * 得到所有的数据字典配置
	 * @param servletContext servlet的ServletContext对象
	 * @return 返回所有的数据库字典配置List对象集合
	 */
	public List getAllParentNodetionary(ServletContext servletContext) {
		//从spring容器中得到SqlMapClient对象实例
//		getSqlMapClient(servletContext);
		List<Dictionary> reslutList = null;
		try {
			reslutList = sqlMapClient.queryForList("getAllParentNodetionary");
		} catch (SQLException e) {
			//打印错误日志
			logger.error("查询数据字典根节点出错：" + e.toString());
		}
		return reslutList;
	}
	
	/**
	 * 根据给定的父节点parentNode返回该节点下的所有子节点List
	 * @param parentNode 给定的父节点id
	 * @param servletContext servlet的ServletContext对象
	 * @return 返回子节点List对象集合
	 */
	public List getDictionaryByParentNode(int parentNode, ServletContext servletContext) {
		//从spring容器中得到SqlMapClient对象实例
//		getSqlMapClient(servletContext);
		List<Dictionary> reslutList = null;
		try {
			reslutList = sqlMapClient.queryForList("getDictionaryByParentNode", parentNode);
		} catch (SQLException e) {
			//打印错误日志
			logger.error("查询数据字典子节点出错：" + e.toString());
		}
		return reslutList;
	}

	/**
	 * 重写SqlMapClient属性的get方法，加入参数ServletContext
	 * @param servletContext servlet的ServletContext对象
	 * @return 返回从spring容器中得到的SqlMapClient对象
	 */
	public SqlMapClient getSqlMapClient(ServletContext servletContext) {
		//通过servlet的ServletConfig得到spring容器对象
		ApplicationContext ctx = WebApplicationContextUtils.getWebApplicationContext(servletContext);
		sqlMapClient = (SqlMapClient) ctx.getBean("sqlMapClient");
		return sqlMapClient;
	}

	/**
	 * SqlMapClient的set方法，供spring容易注入使用
	 * @param sqlMapClient
	 */
	public void setSqlMapClient(SqlMapClient sqlMapClient) {
		this.sqlMapClient = sqlMapClient;
	}

	public SqlMapClient getSqlMapClient() {
		return sqlMapClient;
	}

}

错误还是存在....一样的错误！

[dingding5060]

[Quote=引用 25 楼 warison2008 的回复:]
对了你的SystemInitServlet是怎么调用DictionaryInit的
[/Quote]


SystemInitServlet.java代码如下：

package org.dhf.bbw.init;

import java.io.IOException;
import java.util.Iterator;
import java.util.List;

import javax.servlet.ServletConfig;
import javax.servlet.ServletContext;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.apache.log4j.Logger;
import org.dhf.bbw.admin.dictionary.bean.Dictionary;

/**
 * 在系统启动时加载部分数据供系统使用
 * @author dhf in 2010-1-18
 *
 */
public class SystemInitServlet extends HttpServlet {

	/**
	 * 获得Log4j日志处理类实例
	 */
	private Logger logger = Logger.getLogger(SystemInitServlet.class);

	/**
	 * 定义application 对象
	 */
	public ServletContext servletContext = null;
	
	/**
	 * Initialize global variables
	 * 
	 * @throws ServletException
	 *             servlet异常处理
	 */
	public void init(ServletConfig config) throws ServletException {
		logger.info("----------------------init start.............");
		// 执行读取sql.xml
		//DbSQLInit.init();
		//加载数据字典
		//得到application对象
		servletContext = config.getServletContext();
		//利用单例模式得到DictionaryInit对象
		DictionaryInit dicInit = DictionaryInit.getInstance();
		//查询所有数据字典配置
		List<Dictionary> dicList = dicInit.getAllParentNodetionary(servletContext);
		//如果没有则打印错误日志
		if (dicList == null) {
			logger.error("数据字典初始化失败！");
		}else {
			//循环结果集得到子节点集合
			for (Iterator iter = dicList.iterator(); iter.hasNext();) {
				Dictionary fatherDic = (Dictionary) iter.next();
				int recid = fatherDic.getRecid();
				//根据父节点ID得到其下所有子节点以list对象集合返回
				List<Dictionary> childList = dicInit.getDictionaryByParentNode(recid, servletContext);
				//如果没有子节点打印日志
				if (childList == null) {
					logger.error("没有找到相应的子节点！");
				}else {
					//将得到的数据字典配置信息循环放入application范围，供页面使用
					servletContext.setAttribute(fatherDic.getRemark(), childList);
				}
			}
		}
		
		logger.info("----------------------init end...............");
	}

	/**
	 * Process the HTTP Get request
	 * 
	 * @param request
	 *            HttpServletRequest请求
	 * @param response
	 *            HttpServletResponse响应对象
	 * @throws ServletException
	 *             servlet异常处理
	 * @throws IOException
	 *             文件异常处理
	 */
	public void doGet(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {
	}

	/**
	 * Process the HTTP post request
	 * 
	 * @param request
	 *            HttpServletRequest请求
	 * @param response
	 *            HttpServletResponse响应对象
	 * @throws ServletException
	 *             servlet异常处理
	 * @throws IOException
	 *             文件异常处理
	 */
	public void doPost(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {
	}

	/**
	 * Clean up resources
	 */
	public void destroy() {
	}

}

仁兄，帮忙好好瞄瞄，这个问题折磨我好久了...虽然现在有了比较笨的解决办法，但是我感觉这种配置实现方法总是哪里出现配置问题了才这样的...拜谢了 O(∩_∩)O~

[道光2008]

DictionaryInit dicInit = DictionaryInit.getInstance();
我晕死，你的DictionaryInit 是自己创建的啊，没有交给spring管理？
那当然不能使用spring来注入DictionaryInit 的sqlMapClient啊

[dingding5060]

[Quote=引用 28 楼 warison2008 的回复:]
DictionaryInit dicInit = DictionaryInit.getInstance();
我晕死，你的DictionaryInit 是自己创建的啊，没有交给spring管理？
那当然不能使用spring来注入DictionaryInit 的sqlMapClient啊
[/Quote]


我有试过用spring来管理DictionaryInit 的，但是也是不行...所以我才搞成这样的！O(∩_∩)O~

[道光2008]

你这样写只能通过

//通过servlet的ServletConfig得到spring容器对象
ApplicationContext ctx = WebApplicationContextUtils.getWebApplicationContext(servletContext);
SqlMapClient sqlMapClient = (SqlMapClient) ctx.getBean("sqlMapClient");获得sqlMapClient 啦

[dingding5060]

[Quote=引用 30 楼 warison2008 的回复:]
你这样写只能通过

//通过servlet的ServletConfig得到spring容器对象
        ApplicationContext ctx = WebApplicationContextUtils.getWebApplicationContext(servletContext);
        SqlMapClient sqlMapClient = (SqlMapClient) ctx.getBean("sqlMapClient");获得sqlMapClient 啦

[/Quote]



恩，这种方法是可以解决了，但是我就是搞不明白，为什么那种方式不能行？

[dingding5060]

[Quote=引用 28 楼 warison2008 的回复:]
DictionaryInit dicInit = DictionaryInit.getInstance();
我晕死，你的DictionaryInit 是自己创建的啊，没有交给spring管理？
那当然不能使用spring来注入DictionaryInit 的sqlMapClient啊
[/Quote]



按照你的方法，我又改了一下：

SystemInitServlet.java代码如下：

package org.dhf.bbw.init;

import java.io.IOException;
import java.util.Iterator;
import java.util.List;

import javax.servlet.ServletConfig;
import javax.servlet.ServletContext;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.apache.log4j.Logger;
import org.dhf.bbw.admin.dictionary.bean.Dictionary;

/**
 * 在系统启动时加载部分数据供系统使用
 * @author dhf in 2010-1-18
 *
 */
public class SystemInitServlet extends HttpServlet {

	/**
	 * 获得Log4j日志处理类实例
	 */
	private Logger logger = Logger.getLogger(SystemInitServlet.class);

	/**
	 * 定义application 对象
	 */
	public ServletContext servletContext = null;
	
	protected DictionaryInit dicInit;
	
	public DictionaryInit getDicInit() {
		return dicInit;
	}

	public void setDicInit(DictionaryInit dicInit) {
		this.dicInit = dicInit;
	}

	/**
	 * Initialize global variables
	 * 
	 * @throws ServletException
	 *             servlet异常处理
	 */
	public void init(ServletConfig config) throws ServletException {
		logger.info("----------------------init start.............");
		// 执行读取sql.xml
		//DbSQLInit.init();
		//加载数据字典
		//得到application对象
		servletContext = config.getServletContext();
		//利用单例模式得到DictionaryInit对象
		//DictionaryInit dicInit = DictionaryInit.getInstance();
		//查询所有数据字典配置
		List<Dictionary> dicList = dicInit.getAllParentNodetionary(servletContext);
		//如果没有则打印错误日志
		if (dicList == null) {
			logger.error("数据字典初始化失败！");
		}else {
			//循环结果集得到子节点集合
			for (Iterator iter = dicList.iterator(); iter.hasNext();) {
				Dictionary fatherDic = (Dictionary) iter.next();
				int recid = fatherDic.getRecid();
				//根据父节点ID得到其下所有子节点以list对象集合返回
				List<Dictionary> childList = dicInit.getDictionaryByParentNode(recid, servletContext);
				//如果没有子节点打印日志
				if (childList == null) {
					logger.error("没有找到相应的子节点！");
				}else {
					//将得到的数据字典配置信息循环放入application范围，供页面使用
					servletContext.setAttribute(fatherDic.getRemark(), childList);
				}
			}
		}
		
		logger.info("----------------------init end...............");
	}

	/**
	 * Process the HTTP Get request
	 * 
	 * @param request
	 *            HttpServletRequest请求
	 * @param response
	 *            HttpServletResponse响应对象
	 * @throws ServletException
	 *             servlet异常处理
	 * @throws IOException
	 *             文件异常处理
	 */
	public void doGet(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {
	}

	/**
	 * Process the HTTP post request
	 * 
	 * @param request
	 *            HttpServletRequest请求
	 * @param response
	 *            HttpServletResponse响应对象
	 * @throws ServletException
	 *             servlet异常处理
	 * @throws IOException
	 *             文件异常处理
	 */
	public void doPost(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {
	}

	/**
	 * Clean up resources
	 */
	public void destroy() {
	}

}

增加applicationContext.xml中配置如下：

	<bean id="dictionaryInit" class="org.dhf.bbw.init.DictionaryInit">
		<property name="sqlMapClient">
			<ref bean="sqlMapClient"/>
		</property>
	</bean>
	
	<bean id="SystemInitServlet" class="org.dhf.bbw.init.SystemInitServlet">
		<property name="dicInit">
			<ref bean="dictionaryInit"/>
		</property>
	</bean>

报错如下：

2010-01-18 17:47:27,750  INFO (org.apache.struts2.spring.StrutsSpringObjectFactory:83) - ... initialized Struts-Spring integration successfully
2010-01-18 17:47:27,781 ERROR (org.apache.catalina.core.ContainerBase.[Catalina].[localhost].[/bbw]:675) - StandardWrapper.Throwable
java.lang.NullPointerException
	at org.dhf.bbw.init.SystemInitServlet.init(SystemInitServlet.java:60)
	at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1105)
	at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:932)
	at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:3917)
	at org.apache.catalina.core.StandardContext.start(StandardContext.java:4201)
	at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:759)
	at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:739)
	at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:524)
	at org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:904)
	at org.apache.catalina.startup.HostConfig.deployDirectories(HostConfig.java:867)
	at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:474)
	at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1122)
	at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:310)
	at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:119)
	at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1021)
	at org.apache.catalina.core.StandardHost.start(StandardHost.java:718)
	at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1013)
	at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:442)
	at org.apache.catalina.core.StandardService.start(StandardService.java:450)
	at org.apache.catalina.core.StandardServer.start(StandardServer.java:709)
	at org.apache.catalina.startup.Catalina.start(Catalina.java:551)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:585)
	at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:294)
	at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:432)
2010-01-18 17:47:27,796 ERROR (org.apache.catalina.core.ContainerBase.[Catalina].[localhost].[/bbw]:3919) - Servlet /bbw threw load() exception
java.lang.NullPointerException
	at org.dhf.bbw.init.SystemInitServlet.init(SystemInitServlet.java:60)
	at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1105)
	at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:932)
	at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:3917)
	at org.apache.catalina.core.StandardContext.start(StandardContext.java:4201)
	at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:759)
	at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:739)
	at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:524)
	at org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:904)
	at org.apache.catalina.startup.HostConfig.deployDirectories(HostConfig.java:867)
	at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:474)
	at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1122)
	at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:310)
	at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:119)
	at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1021)
	at org.apache.catalina.core.StandardHost.start(StandardHost.java:718)
	at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1013)
	at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:442)
	at org.apache.catalina.core.StandardService.start(StandardService.java:450)
	at org.apache.catalina.core.StandardServer.start(StandardServer.java:709)
	at org.apache.catalina.startup.Catalina.start(Catalina.java:551)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:585)
	at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:294)
	at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:432)
2010-1-18 17:47:27 org.apache.coyote.http11.Http11BaseProtocol start
信息: Starting Coyote HTTP/1.1 on http-8888
2010-1-18 17:47:28 org.apache.jk.common.ChannelSocket init
信息: JK: ajp13 listening on /0.0.0.0:8009
2010-1-18 17:47:28 org.apache.jk.server.JkMain start
信息: Jk running ID=0 time=0/62  config=null
2010-1-18 17:47:28 org.apache.catalina.storeconfig.StoreLoader load
信息: Find registry server-registry.xml at classpath resource
2010-1-18 17:47:28 org.apache.catalina.startup.Catalina start
信息: Server startup in 5687 ms

感觉出现连环效应了....：-（

[道光2008]

config对象为null。

config只有由servlet容器（也就是tomcat等应用服务器）调用init方法才能得到正确的config，而且只会调用一次。

你把SystemInitServlet取消托管，然后参考http://www.csip.com.cn/42/n-19242.html在SystemInitServlet访问spring容器，并获得dictionaryInit对象

[dingding5060]

[Quote=引用 5 楼 imasmallbird 的回复:]
你在web.xml中是怎么配置的呀？？
你需要把spring整合加载呀~~

[/Quote]


web.xml配置如下：

<?xml version="1.0" encoding="UTF-8"?>
<web-app id="WebApp_9" version="2.4" xmlns="http://java.sun.com/xml/ns/j2ee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">

    <display-name>Struts Blank</display-name>
	
	<!-- page request filter add by dhf 2010-1-5 -->
	<filter>  
		<filter-name>characterEncoding</filter-name>  
		<filter-class>org.dhf.bbw.filter.CharacterEncodingFilter</filter-class>  
	</filter>  
	<filter-mapping>  
		<filter-name>characterEncoding</filter-name>  
		<url-pattern>/*</url-pattern>  
	</filter-mapping> 
	
	<context-param>
		<param-name>contextConfigLocation</param-name>
		<param-value>/WEB-INF/applicationContext*.xml,classpath*:applicationContext*.xml
		</param-value>
	</context-param>

    <filter>
        <filter-name>struts2</filter-name>
        <filter-class>org.apache.struts2.dispatcher.FilterDispatcher</filter-class>
    </filter>

    <filter-mapping>
        <filter-name>struts2</filter-name>
        <url-pattern>/*</url-pattern>
    </filter-mapping>

	<listener>
		<listener-class>
			org.springframework.web.context.ContextLoaderListener
		</listener-class>
	</listener>

    <welcome-file-list>
		<welcome-file>/WEB-INF/admin/index.jsp</welcome-file>
    </welcome-file-list>

<!-- init servlet -->
	<servlet>
		<servlet-name>SystemInitServlet</servlet-name>
		<servlet-class>org.dhf.bbw.init.SystemInitServlet</servlet-class>
		<load-on-startup>0</load-on-startup>
	</servlet> 

</web-app>

我是在SystemInitServlet类中调用DictionaryInit的方法加载数据的！

[dingding5060]

[Quote=引用 10 楼 zhang19870928 的回复:]
  struts1  中 struts-config.xml配置文件呢 action 的type="org.springframework.web.struts.DelegatingActionProxy"

struts2  struts.xml文件 <constant name="struts.objectFactory" value="spring"> </constant>

我就没有看出你代码有struts代码啊
[/Quote]


我的struts代码是写在struts.properties中的，如下：

struts.custom.i18n.resources = messageResourcesOfBBW_admin,messageResourcesOfBBW_user
struts.il8n.encoding = UTF-8
struts.locale = UTF-8
struts.il8n.reload = true
struts.enable.DynamicMethodInvocation = true
struts.devMode = false
struts.objectFactory.spring.autoWire = type
struts.configuration.xml.reload=true
struts.objectFactory = spring

[阿士匹灵]

学习

[APOLLO_TS]

主要是要把握生命周期，比如action中的构造方法就不能用servlet api主要是servlet上下文还没有注入，你的也一样，把握注入的生命周期时刻就行了。

[careers1111]

学习下

[BearKin]

不会 帮顶

[dingding5060]

[Quote=引用 7 楼 e332424234e 的回复:]
BaseTest

Java code
@ContextConfiguration(locations= {"classpath:/spring/applicationContext.xml" })
@TransactionConfiguration(transactionManager="transactionManager",defaultRollback=false)publicclass BaseTestextends AbstractTransactionalJUnit4SpringContextTests{

}


[/Quote]


这位大哥，这个是不是写的一个测试程序啊？我的报错如下：

ContextConfiguration cannot be resolved to a type
TransactionConfiguration cannot be resolved to a type
AbstractTransactionalJUnit4SpringContextTests cannot be resolved to a type

这些是要配置什么吧？我去网上找了些有关事务的，但是配置有点小问题，能否给个完整的配置，非常感谢！

[dingding5060]

[Quote=引用 14 楼 apollo_ts 的回复:]
主要是要把握生命周期，比如action中的构造方法就不能用servlet api主要是servlet上下文还没有注入，你的也一样，把握注入的生命周期时刻就行了。
[/Quote]


呵呵，非常感谢，能否就小弟这个问题给个详细的解释啊？我去网上查了些相关注入的生命周期的资料...希望仁兄给点意见！谢谢 O(∩_∩)O~

[道光2008]

你吧 sqlMapClient 改下，参考：<bean id="sqlMapClient"
class="org.springframework.orm.ibatis.SqlMapClientFactoryBean">
<property name="configLocation"
value="classpath:sql-map-config.xml" />
<property name="dataSource" ref="dataSource" />
</bean>

sql-map-config.xml放在：/WEB-INF/CLASSES/sql-map-config.xml.

[dingding5060]

[Quote=引用 33 楼 warison2008 的回复:]
config对象为null。

config只有由servlet容器（也就是tomcat等应用服务器）调用init方法才能得到正确的config，而且只会调用一次。

你把SystemInitServlet取消托管，然后参考http://www.csip.com.cn/42/n-19242.html在SystemInitServlet访问spring容器，并获得dictionaryInit对象
[/Quote]




java.lang.NullPointerException
at org.dhf.bbw.init.SystemInitServlet.init(SystemInitServlet.java:60)


这里报错的SystemInitServlet的60行不是config对象为NULL，是DictionaryInit dicInit对象为NULL，呵呵，又学习了一种得到从spring容器管理中得到bean的方法：

WebApplicationContext  wac = WebApplicationContextUtils.getRequiredWebApplicationContext(this.getServletContext());

IWorksService worksService=(IWorksService)wac.getBean("worksService");

非常感谢！呵呵！

[dingding5060]

非常感谢各位的帮助，结贴啦！...(*^__^*)