Unresolved compilation problem: The method start() in the type Thread is not [问题点数:50分]

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org.apache.catalina.core.StandardHost.start(StandardHost.java:718)rn at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1013)rn at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:442)rn at org.apache.catalina.core.StandardService.start(StandardService.java:450)rn at org.apache.catalina.core.StandardServer.start(StandardServer.java:709)rn at org.apache.catalina.startup.Catalina.start(Catalina.java:551)rn at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)rn at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)rn at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)rn at java.lang.reflect.Method.invoke(Method.java:597)rn at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:294)rn at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:432)rn([localhost].[/o3] 3714) Error configuring application listener of class com.safenet.sentinel.OnlineCounterListenerrnjava.lang.Error: Unresolved compilation problems: rn The type javax.servlet.http.HttpSession cannot be resolved. It is indirectly referenced from required .class filesrn The import javax.servlet.http.HttpSession cannot be resolvedrn The import javax.servlet.http.HttpSessionEvent cannot be resolvedrn The import javax.servlet.http.HttpSessionListener cannot be resolvedrn HttpSessionListener cannot be resolved to a typern HttpSessionEvent cannot be resolved to a typern HttpSessionEvent cannot be resolved to a typern HttpSession cannot be resolved to a typernrn at com.safenet.sentinel.OnlineCounterListener.(OnlineCounterListener.java:1)rn at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)rn at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)rn at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)rn at java.lang.reflect.Constructor.newInstance(Constructor.java:513)rn at java.lang.Class.newInstance0(Class.java:355)rn at java.lang.Class.newInstance(Class.java:308)rn at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:3712)rn at org.apache.catalina.core.StandardContext.start(StandardContext.java:4211)rn at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1013)rn at org.apache.catalina.core.StandardHost.start(StandardHost.java:718)rn at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1013)rn at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:442)rn at org.apache.catalina.core.StandardService.start(StandardService.java:450)rn at org.apache.catalina.core.StandardServer.start(StandardServer.java:709)rn at org.apache.catalina.startup.Catalina.start(Catalina.java:551)rn at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)rn at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)rn at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)rn at java.lang.reflect.Method.invoke(Method.java:597)rn at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:294)rn at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:432)rnrnrn 求各位大虾给点宝贵意见。。是不是就是缺包的问题。好像我导入你进入还是报错。。src 下面还是红叉出现。。但是在公司里面同样的IDE,同意的项目却可以正常编译.. 。。忘各位虾仁多多发表意见。。小弟不甚感激!!!
java.lang.Error: Unresolved compilation problems
严重: Exception starting filter UserLoginrnjava.lang.Error: Unresolved compilation problems: rn The import javax.servlet.FilterChain cannot be resolvedrn The import javax.servlet.FilterConfig cannot be resolvedrn The import javax.servlet.ServletException cannot be resolvedrn The import javax.servlet.ServletRequest cannot be resolvedrn The import javax.servlet.ServletResponse cannot be resolvedrn The import javax.servlet.http.HttpServletRequest cannot be resolvedrn The import javax.servlet.http.HttpServletResponse cannot be resolvedrn The hierarchy of the type CanUserLogin is inconsistentrn ServletRequest cannot be resolved to a typern ServletResponse cannot be resolved to a typern FilterChain cannot be resolved to a typern ServletException cannot be resolved to a typern HttpServletRequest cannot be resolved to a typern HttpServletRequest cannot be resolved to a typern HttpServletResponse cannot be resolved to a typern HttpServletResponse cannot be resolved to a typern FilterConfig cannot be resolved to a typern ServletException cannot be resolved to a typernrn at com.back.filter.CanUserLogin.(CanUserLogin.java:5)rn at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)rn at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)rn at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)rn at java.lang.reflect.Constructor.newInstance(Constructor.java:513)rn at java.lang.Class.newInstance0(Class.java:355)rn at java.lang.Class.newInstance(Class.java:308)rn at org.apache.catalina.core.ApplicationFilterConfig.getFilter(ApplicationFilterConfig.java:275)rn at org.apache.catalina.core.ApplicationFilterConfig.setFilterDef(ApplicationFilterConfig.java:422)rn at org.apache.catalina.core.ApplicationFilterConfig.(ApplicationFilterConfig.java:115)rn at org.apache.catalina.core.StandardContext.filterStart(StandardContext.java:3838)rn at org.apache.catalina.core.StandardContext.start(StandardContext.java:4488)rn at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:791)rn at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:771)rn at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:546)rn at org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:1041)rn at org.apache.catalina.startup.HostConfig.deployDirectories(HostConfig.java:964)rn at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:502)rn at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1277)rn at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:321)rn at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:119)rn at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1053)rn at org.apache.catalina.core.StandardHost.start(StandardHost.java:785)rn at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1045)rn at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:443)rn at org.apache.catalina.core.StandardService.start(StandardService.java:519)rn at org.apache.catalina.core.StandardServer.start(StandardServer.java:710)rn at org.apache.catalina.startup.Catalina.start(Catalina.java:581)rn at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)rn at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)rn at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)rn at java.lang.reflect.Method.invoke(Method.java:597)rn at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:289)rn at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:414)rn2015-9-23 11:28:37 org.apache.catalina.core.StandardContext filterStartrn严重: Exception starting filter NyWebFilerrnjava.lang.Error: Unresolved compilation problems: rn The import javax.servlet.FilterChain cannot be resolvedrn The import javax.servlet.FilterConfig cannot be resolvedrn The import javax.servlet.ServletException cannot be resolvedrn The import javax.servlet.ServletRequest cannot be resolvedrn The import javax.servlet.ServletResponse cannot be resolvedrn The import javax.servlet.http.HttpServletRequest cannot be resolvedrn The import javax.servlet.http.HttpServletResponse cannot be resolvedrn The import javax.servlet.http.HttpSession cannot be resolvedrn The import com.customer.CorpDomain cannot be resolvedrn The hierarchy of the type NyWebFiler is inconsistentrn The type javax.servlet.Filter cannot be resolved. It is indirectly referenced from required .class filesrn HttpServletRequest cannot be resolved to a typern HttpServletResponse cannot be resolved to a typern HttpSession cannot be resolved to a typern HttpServletRequest cannot be resolved to a typern HttpServletResponse cannot be resolved to a typern HttpServletRequest cannot be resolved to a typern HttpServletResponse cannot be resolved to a typern FilterChain cannot be resolved to a typern ServletException cannot be resolved to a typern CorpDomain cannot be resolvedrn HttpSession cannot be resolved to a typern CorpDomain cannot be resolvedrn ServletRequest cannot be resolved to a typern ServletResponse cannot be resolved to a typern FilterChain cannot be resolved to a typern ServletException cannot be resolved to a typern HttpServletRequest cannot be resolved to a typern HttpServletRequest cannot be resolved to a typern HttpServletResponse cannot be resolved to a typern HttpServletResponse cannot be resolved to a typern CorpDomain cannot be resolvedrn CorpDomain cannot be resolvedrn HttpSession cannot be resolved to a typern CorpDomain cannot be resolvedrn CorpDomain cannot be resolvedrn HttpServletRequest cannot be resolved to a typern CorpDomain cannot be resolvedrn CorpDomain cannot be resolvedrn CorpDomain cannot be resolvedrn HttpServletRequest cannot be resolved to a typern FilterConfig cannot be resolved to a typern ServletException cannot be resolved to a typernrn at com.back.filter.NyWebFiler.(NyWebFiler.java:7)rn at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)rn at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)rn at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)rn at java.lang.reflect.Constructor.newInstance(Constructor.java:513)rn at java.lang.Class.newInstance0(Class.java:355)rn at java.lang.Class.newInstance(Class.java:308)rn at org.apache.catalina.core.ApplicationFilterConfig.getFilter(ApplicationFilterConfig.java:275)rn at org.apache.catalina.core.ApplicationFilterConfig.setFilterDef(ApplicationFilterConfig.java:422)rn at org.apache.catalina.core.ApplicationFilterConfig.(ApplicationFilterConfig.java:115)rn at org.apache.catalina.core.StandardContext.filterStart(StandardContext.java:3838)rn at org.apache.catalina.core.StandardContext.start(StandardContext.java:4488)rn at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:791)rn at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:771)rn at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:546)rn at org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:1041)rn at org.apache.catalina.startup.HostConfig.deployDirectories(HostConfig.java:964)rn at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:502)rn at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1277)rn at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:321)rn at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:119)rn at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1053)rn at org.apache.catalina.core.StandardHost.start(StandardHost.java:785)rn at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1045)rn at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:443)rn at org.apache.catalina.core.StandardService.start(StandardService.java:519)rn at org.apache.catalina.core.StandardServer.start(StandardServer.java:710)rn at org.apache.catalina.startup.Catalina.start(Catalina.java:581)rn at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)rn at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)rn at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)rn at java.lang.reflect.Method.invoke(Method.java:597)rn at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:289)rn at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:414)rn2015-9-23 11:28:37 org.apache.catalina.core.StandardContext startrn严重: Error filterStartrn2015-9-23 11:28:37 org.apache.catalina.core.StandardContext startrn严重: Context [/cqzxsyxx] startup failed due to previous errorsrn2015-9-23 11:28:37 org.apache.catalina.loader.WebappClassLoader clearReferencesJdbcrn严重: A web application registered the JBDC driver [com.mysql.jdbc.Driver] but failed to unregister it when the web application was stopped. To prevent a memory leak, the JDBC Driver has been forcibly unregistered.rnrn求解决方法,对myeclipse配置不是很了解 求详解 不甚感激
Unresolved compilation problems
package InOutPut;rn//A tiny editor.rnimport java.io.*;rnpublic class TinyEdit rn public static void main(String args[])rn throws IOExceptionrn rn //create a BufferedReader using System.inrn BufferedReader br=new BufferedReader(new InputStreamReader(System.in));rn String srt[]=new String[100];rn System.out.println("Enter lines of text.");rn System.out.println("Enter 'stop' to quit.");rnrn for(int i=0;i java.lang.Error: Unresolved compilation problems: rn str cannot be resolvedrn str cannot be resolvedrn str cannot be resolvedrnrn at InOutPut.TinyEdit.main(TinyEdit.java:16)
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compilation problem:">为什么下面的连接sql server2000程序会有Exception in thread "main" java.lang.Error: Unresolved compilation problem:
为什么下面的程序会有这样的报错信息Exception in thread "main" java.lang.Error: Unresolved compilation problem: Syntax error on token "Catch", catch expected是不是Eclipse的配置问题?我已经加载了sql server2000驱动和给sql server 打了补丁了rnpackage rm;rnrnimport java.sql.*;rnrnpublic class TestDB rnpublic static void main(String[] args) rnString driverName = "com.microsoft.jdbc.sqlserver.SQLServerDriver";rnString dbURL = "jdbc:microsoft:sqlserver://localhost:1433; DatabaseName=rm";rnString userName ="sa";rnString userPwd = "123456";rnConnection dbConn ;rnrntry rnClass.forName(driverName);rndbConn = DriverManager.getConnection(dbURL, userName, userPwd);rnSystem.out.println("Connection Successful!");rnrnCatch (Exception e) rne.printStackTrace();rnrnrnrn
compilation problem:">为什么会报这样的错误:Exception in thread "main" java.lang.Error: Unresolved compilation problem:
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求助:java.lang.Error:Unresolved compilation problems:
java.lang.Error: Unresolved compilation problems: rn type cannot be resolvedrn Syntax error on token ",", delete this tokenrnrnrn求助,此错误是什么问题导致的,各种搜索都找不到答案,紧急啊,请各位大神帮助。
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compilation problem:">为什么运行后就提示这样的错误:Exception in thread "main" java.lang.Error: Unresolved compilation problem:
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