(异常有关问题解决)手动|自动装配Spring与Webwork配置 修改spring-xwork-integration.jar方法实现

(错误问题解决)手动|自动装配Spring与Webwork配置 修改spring-xwork-integration.jar方法实现

我在网上看到一个spring 结合webwork的实例，自己弄了一下，发现老出现一个奇怪的错误

按照下面的配置，会出现一个一样的错误

?

严重: Could not execute action
java.lang.IllegalStateException: The application context has not been set on this resolver
?at com.opensymphony.xwork.spring.SpringExternalReferenceResolver.resolveReferences(SpringExternalReferenceResolver.java:38)
?at com.opensymphony.xwork.interceptor.ExternalReferencesInterceptor.before(ExternalReferencesInterceptor.java:40)
?at com.opensymphony.xwork.interceptor.AroundInterceptor.intercept(AroundInterceptor.java:34)
?at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:165)
?at com.opensymphony.xwork.interceptor.AroundInterceptor.intercept(AroundInterceptor.java:35)
?at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:165)
?at com.opensymphony.xwork.interceptor.AroundInterceptor.intercept(AroundInterceptor.java:35)
?at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:165)
?at com.opensymphony.xwork.interceptor.AroundInterceptor.intercept(AroundInterceptor.java:35)
?at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:165)
?at com.opensymphony.xwork.interceptor.AroundInterceptor.intercept(AroundInterceptor.java:35)
?at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:165)
?at com.opensymphony.xwork.interceptor.AroundInterceptor.intercept(AroundInterceptor.java:35)
?at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:165)
?at com.opensymphony.xwork.interceptor.AroundInterceptor.intercept(AroundInterceptor.java:35)
?at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:165)
?at com.opensymphony.xwork.DefaultActionProxy.execute(DefaultActionProxy.java:115)
?at com.opensymphony.webwork.dispatcher.ServletDispatcher.serviceAction(ServletDispatcher.java:229)
?at com.opensymphony.webwork.dispatcher.ServletDispatcher.service(ServletDispatcher.java:199)
?at javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
?at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:269)
?at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
?at org.springframework.orm.hibernate.support.OpenSessionInViewFilter.doFilterInternal(OpenSessionInViewFilter.java:174)
?at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76)
?at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:215)
?at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
?at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
?at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:172)
?at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
?at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:117)
?at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:108)
?at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:174)
?at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:873)
?at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:665)
?at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:528)
?at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:81)
?at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:689)
?at java.lang.Thread.run(Unknown Source)

?

我使用的是spring-xwork-integration.jar 这jar包来在webwork的action里面IOC注入spring的bean对象，异常提示的代码：?The application context has not been set on this resolver 经分析就是在spring-xwork-integration.jar 的SpringExternalReferenceResolver里，其中一段代码如下

?

? public void resolveReferences(ActionInvocation paramActionInvocation)
??? throws ReferenceResolverException
? {
??? if(this.applicationContext == null) throw new IllegalStateException("The application context has not been set on this resolver");

?

?

--------------------

?

}

也就是说方法里的applicationContext?取不到，真奇怪，我在web.xml里配置了该jar包的listener

?

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

?
? <listener>
?? <listener-class>com.opensymphony.xwork.spring.SpringObjectFactoryListener</listener-class>
? </listener> ?-----------------这个就是spring-xwork-integration.jar里的listener

?

代码里主要片段：

?

? public void contextInitialized(ServletContextEvent paramServletContextEvent)
? {
??? ServletContext localServletContext = paramServletContextEvent.getServletContext();
??? WebApplicationContext localWebApplicationContext = WebApplicationContextUtils.getWebApplicationContext(localServletContext);
??? SpringObjectFactory localSpringObjectFactory = new SpringObjectFactory();
??? localSpringObjectFactory.setApplicationContext(localWebApplicationContext);
??? ObjectFactory.setObjectFactory(localSpringObjectFactory);
? }

?

?里面是可以得到applicationContext?对象的，但是手工装配的SpringExternalReferenceResolver里没有给applicationContext?赋值，所以报错了，所以我更改了jar里的类，我首先用jd-gui.exe反编译jar，把这3个文件修改了

主要是在SpringObjectFactoryListener里新增一个静态实例变量

?

public static org.springframework.context.ApplicationContext.ApplicationContext aplicationContextWeb = null;

?

然后再contextInitialized方法体里赋值

aplicationContextWeb = localWebApplicationContext;

?

那么在SpringExternalReferenceResolver里，在使用applicationContext前赋值

?

?

applicationContext = SpringObjectFactoryListener.aplicationContextWeb;

?

编译好后，打jar包，覆盖原来的，重启tomcat，就通过了手工装配的测试。

?

但是如果在web.xml里把

?

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

?
? <listener>
?? <listener-class>com.opensymphony.xwork.spring.SpringObjectFactoryListener</listener-class>
? </listener> ?-----------------这个就是spring-xwork-integration.jar里的listener

?

2个位置对调，变成

?
? <listener>
?? <listener-class>com.opensymphony.xwork.spring.SpringObjectFactoryListener</listener-class>
? </listener> ?-----------------这个就是spring-xwork-integration.jar里的listener

?

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

系统又会出错，这个问题更复杂，具体原因我还不是是否清楚。有哪位精通的高手给我答案吗？？？？？？？？？？？

?

--------------这个问题我现在分析了spring-xwork-integration.jar里的java文件，发现原来jar里需要把ServletContextEvent 通过spring提供的WebApplicationContextUtils.getWebApplicationContext（）来转换

成spring自己的ApplicationContext，所以说，必须选侦听spring的ContextLoaderListener，在侦听SpringObjectFactoryListener，位置不能反，否则会报错。

?

?

谢谢啦！！！！！！！！！！！！！！！！！！
?

附近里的第一个jar文件是我修改过的！！！！！！！！！！！！！！（这后来发现是垃圾，可能被删除过文件的）

第二个jar包是比较完整的，是正确的

2010-5-26 18:19 我此时才发现，我在公司使用的spring-xwork-integration.jar 有重大问题，大小才8k不到，靠，郁闷啊，好像不对的，真正的spring-xwork-integration.jar应该比这个大，而且里面不止3个class，估计问题出在这里(当然也不排除jar的版本问题，但是我不知道怎么看版本，也许第二个jar包的版本比较新吧，只能猜测。)，上面的错误也跟这个jar包有关，新的jar换上去，问题就解决了，哈哈。垃圾啊，被人陷害了。怪不得网上找这问题，答案非常少啦，原来是这么回事。

------------------------------------------------下面是我看到的例子 原文在http://gis8.blog.sohu.com/41790075.html?----------------------------------------

?一个手动装配的Spring与Webwork集成配置示例