運行jsp文件時出現錯誤。由於此動態Web項目是使用strut2 spring3 hibernate4完成的

Question

實際上，我正在嘗試將Spring3和Hibernate4一起實現Struts2。 當我啟動Apache Tomcat服務器並運行index.jsp文件時，它給了我以下錯誤。

SEVERE: Exception starting filter struts2
java.lang.ClassNotFoundException: org.apache.struts2.dispatcher.FilterDispatcher
    at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1714)
    at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1559)
    at org.apache.catalina.core.DefaultInstanceManager.loadClass(DefaultInstanceManager.java:527)
    at org.apache.catalina.core.DefaultInstanceManager.loadClassMaybePrivileged(DefaultInstanceManager.java:509)
    at org.apache.catalina.core.DefaultInstanceManager.newInstance(DefaultInstanceManager.java:137)
    at org.apache.catalina.core.ApplicationFilterConfig.getFilter(ApplicationFilterConfig.java:260)
    at org.apache.catalina.core.ApplicationFilterConfig.<init>(ApplicationFilterConfig.java:107)
    at org.apache.catalina.core.StandardContext.filterStart(StandardContext.java:4775)
    at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5452)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
    at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1559)
    at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1549)
    at java.util.concurrent.FutureTask$Sync.innerRun(Unknown Source)
    at java.util.concurrent.FutureTask.run(Unknown Source)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
    at java.lang.Thread.run(Unknown Source)

Aug 05, 2013 9:24:48 PM org.apache.catalina.core.StandardContext startInternal
SEVERE: Error filterStart
Aug 05, 2013 9:24:48 PM org.apache.catalina.core.StandardContext startInternal
SEVERE: Context [/hibernate_strut_spring] startup failed due to previous errors
Aug 05, 2013 9:24:48 PM org.apache.coyote.AbstractProtocol start
INFO: Starting ProtocolHandler ["http-apr-8080"]
Aug 05, 2013 9:24:48 PM org.apache.coyote.AbstractProtocol start
INFO: Starting ProtocolHandler ["ajp-apr-8009"]
Aug 05, 2013 9:24:48 PM org.apache.catalina.startup.Catalina start
INFO: Server startup in 425 ms

請幫助我。我是這個主題的初學者。 請幫助我的朋友們。

在我將所有相關的jar文件添加到WEB-INF / lib中之后，它顯示了一些其他錯誤，如下所示

SEVERE: Exception starting filter struts2
java.lang.NoSuchMethodError: com.opensymphony.xwork2.config.ConfigurationManager.addConfigurationProvider(Lcom/opensymphony/xwork2/config/ConfigurationProvider;)V
    at org.apache.struts2.dispatcher.Dispatcher.init_DefaultProperties(Dispatcher.java:310)
    at org.apache.struts2.dispatcher.Dispatcher.init(Dispatcher.java:411)
    at org.apache.struts2.dispatcher.ng.InitOperations.initDispatcher(InitOperations.java:69)
    at org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter.init(StrutsPrepareAndExecuteFilter.java:51)
    at org.apache.catalina.core.ApplicationFilterConfig.initFilter(ApplicationFilterConfig.java:281)
    at org.apache.catalina.core.ApplicationFilterConfig.getFilter(ApplicationFilterConfig.java:262)
    at org.apache.catalina.core.ApplicationFilterConfig.<init>(ApplicationFilterConfig.java:107)
    at org.apache.catalina.core.StandardContext.filterStart(StandardContext.java:4775)
    at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5452)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
    at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1559)
    at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1549)
    at java.util.concurrent.FutureTask$Sync.innerRun(Unknown Source)
    at java.util.concurrent.FutureTask.run(Unknown Source)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
    at java.lang.Thread.run(Unknown Source)

Aug 05, 2013 9:46:10 PM org.apache.catalina.core.StandardContext startInternal
SEVERE: Error filterStart
Aug 05, 2013 9:46:10 PM org.apache.catalina.core.StandardContext startInternal
SEVERE: Context [/hibernate_strut_spring] startup failed due to previous errors
Aug 05, 2013 9:46:10 PM org.apache.coyote.AbstractProtocol start
INFO: Starting ProtocolHandler ["http-apr-8080"]
Aug 05, 2013 9:46:10 PM org.apache.coyote.AbstractProtocol start
INFO: Starting ProtocolHandler ["ajp-apr-8009"]
Aug 05, 2013 9:46:10 PM org.apache.catalina.startup.Catalina start
INFO: Server startup in 2836 ms

web.xml文件

<?xml version="1.0" encoding="UTF-8"?>

<web-app id="WebApp_ID" 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>hibernate_strut_spring</display-name>
    <welcome-file-list>
        <welcome-file>index.jsp</welcome-file>
    </welcome-file-list>
    <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>
</web-app>

Answer 1

在項目中使用相同版本的struts jar。 我認為您使用了不同的版本，也錯過了一些罐子。

Answer 2

struts jar struts2-core-XXXX.jar ，其中XXXX表示版本需要找到通往應用程序類路徑的路徑。

可以通過將其包含在WEB-INF/lib來實現

Answer 3

如果使用的是Eclipse，請執行CTRL + SHIFT +T並鍵入FilterDispatcher，然后查看是否可以在窗口中找到struts2-core-requiredVersion.jar 。 很可能您不知道為什么會收到錯誤消息。您需要在ProjectDirectory/WEB-INF/lib下添加此jar。

如果您正在使用maven，則添加以下依賴項

 <dependency>
      <groupId>org.apache.struts</groupId>
      <artifactId>struts2-core</artifactId>
      <version>latestVersion</version>
    </dependency>