我试图在Struts2 JSP中进行一个简单的AJAX调用，但是我一直收到此错误：“找不到Struts调度程序。” 我在stackoverflow上检查了其他类似的线程，看起来一切正常。请告知。
web.xml包含
<filter>
<filter-name>CompressionFilter</filter-name>
<filter-class>pl.com.source.filter.gzip.GZIPFilter</filter-class>
</filter>
<filter>
<filter-name>loginFilter</filter-name>
<filter-class>com.hp.aso.pg.dw.wwmd.consoles.LoginFilter</filter-class>
</filter>
<filter>
<filter-name>Acegi Filter Chain Proxy</filter-name>
<filter-class>org.acegisecurity.util.FilterToBeanProxy</filter-class>
<init-param>
<param-name>targetClass</param-name>
<param-value>org.acegisecurity.util.FilterChainProxy</param-value>
</init-param>
</filter>
<filter>
<filter-name>hibernateFilter</filter-name>
<filter-class>org.springframework.orm.hibernate3.support.OpenSessionInViewFilter</filter-class>
<init-param>
<param-name>singleSession</param-name>
<param-value>true</param-value>
</init-param>
</filter>
<filter>
<filter-name>ResponseOverrideFilter</filter-name>
<filter-class>org.displaytag.filter.ResponseOverrideFilter</filter-class>
</filter>
<filter>
<filter-name>contentTypeFilter</filter-name>
<filter-class>pl.com.source.wwmd.filter.ContentTypeFilter</filter-class>
</filter>
<filter>
<filter-name>zkossThemeFilter</filter-name>
<filter-class>pl.com.source.wwmd.filter.ZkossThemeFilter</filter-class>
</filter>
<filter>
<filter-name>userDefineFilter</filter-name>
<filter-class>pl.com.source.wwmd.filter.UserDefineFilter</filter-class>
</filter>
<filter>
<filter-name>struts2</filter-name>
<filter-class>org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter</filter-class>
</filter>
<filter-mapping>
<filter-name>Acegi Filter Chain Proxy</filter-name>
<url-pattern>/*</url-pattern>
<!-- <url-pattern>*.actionOld</url-pattern>-->
</filter-mapping>
<filter-mapping>
<filter-name>zkossThemeFilter</filter-name>
<url-pattern>*</url-pattern>
</filter-mapping>
<filter-mapping>
<filter-name>userDefineFilter</filter-name>
<url-pattern>*.action</url-pattern>
</filter-mapping>
<filter-mapping>
<filter-name>userDefineFilter</filter-name>
<url-pattern>*.do</url-pattern>
</filter-mapping>
<filter-mapping>
<filter-name>hibernateFilter</filter-name>
<url-pattern>*.action</url-pattern>
</filter-mapping>
<filter-mapping>
<filter-name>ResponseOverrideFilter</filter-name>
<url-pattern>*.action</url-pattern>
</filter-mapping>
<filter-mapping>
<filter-name>contentTypeFilter</filter-name>
<url-pattern>*.action</url-pattern>
</filter-mapping>
<filter-mapping>
<filter-name>struts2</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
Struts.xml包含
<constant name="struts.devMode" value="true" />
<package name="default" extends="json-default" namespace="/">
<action name="sendvaluetoaction" class="pl.com.source.wwmd.action.topsheests.SendAction">
<result name="SUCCESS" type="json">/index.jsp</result>
</action>
</package>
SendAction.java
import com.opensymphony.xwork2.ActionSupport;
public class SendAction extends ActionSupport {
private String name;
private String msg;
@Override
public String execute() throws Exception {
try {
setMsg("Hello " + getName());
System.out.println(msg);
} catch (Exception e) {
e.printStackTrace();
}
return "SUCCESS";
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getMsg() {
return msg;
}
public void setMsg(String msg) {
this.msg = msg;
}
}
Ajax呼叫：
function testChange(){
var name = "test"
$.ajax({
type : "GET",
url : "sendvaluetoaction",
data : "name=" + name,
success : function(data) {
var html = "<br>" + data.msg;
console.log(html)
},
error : function(data) {
alert("Some error occured.");
}
});
}
使用的外部图书馆（包括许多其他图书馆）：
完整的错误消息：
The Struts dispatcher cannot be found. This is usually caused by using Struts tags without the associated filter. Struts tags are only usable when the request has passed through its servlet filter, which initializes the Struts dispatcher needed for this tag. - [unknown location]
at org.apache.struts2.views.jsp.TagUtils.getStack(TagUtils.java:60)
at org.apache.struts2.views.jsp.StrutsBodyTagSupport.getStack(StrutsBodyTagSupport.java:44)
at org.apache.struts2.views.jsp.ui.AbstractUITag.setDynamicAttribute(AbstractUITag.java:301)
at jsp_servlet.__404._jsp__tag0(__404.java:162)
at jsp_servlet.__404._jspService(__404.java:113)
at weblogic.servlet.jsp.JspBase.service(JspBase.java:35)
at weblogic.servlet.internal.StubSecurityHelper$ServletServiceAction.run(StubSecurityHelper.java:286)
at weblogic.servlet.internal.StubSecurityHelper$ServletServiceAction.run(StubSecurityHelper.java:260)
at weblogic.servlet.internal.StubSecurityHelper.invokeServlet(StubSecurityHelper.java:137)
at weblogic.servlet.internal.ServletStubImpl.execute(ServletStubImpl.java:350)
at weblogic.servlet.internal.ServletStubImpl.onAddToMapException(ServletStubImpl.java:489)
at weblogic.servlet.internal.ServletStubImpl.execute(ServletStubImpl.java:376)
at weblogic.servlet.internal.ServletStubImpl.execute(ServletStubImpl.java:247)
at weblogic.servlet.internal.RequestDispatcherImpl.invokeServlet(RequestDispatcherImpl.java:630)
at weblogic.servlet.internal.RequestDispatcherImpl.forward(RequestDispatcherImpl.java:287)
at weblogic.servlet.internal.ServletResponseImpl.sendError(ServletResponseImpl.java:866)
at weblogic.servlet.internal.ServletResponseImpl.sendError(ServletResponseImpl.java:709)
at weblogic.servlet.FileServlet.findSource(FileServlet.java:276)
at weblogic.servlet.FileServlet.doGetHeadPost(FileServlet.java:180)
at weblogic.servlet.FileServlet.service(FileServlet.java:162)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:790)
at weblogic.servlet.internal.StubSecurityHelper$ServletServiceAction.run(StubSecurityHelper.java:286)
at weblogic.servlet.internal.StubSecurityHelper$ServletServiceAction.run(StubSecurityHelper.java:260)
at weblogic.servlet.internal.StubSecurityHelper.invokeServlet(StubSecurityHelper.java:137)
at weblogic.servlet.internal.ServletStubImpl.execute(ServletStubImpl.java:350)
at weblogic.servlet.internal.TailFilter.doFilter(TailFilter.java:25)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:78)
at pl.com.source.wwmd.filter.ContentTypeFilter.doFilter(ContentTypeFilter.java:35)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:78)
at org.displaytag.filter.ResponseOverrideFilter.doFilter(ResponseOverrideFilter.java:125)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:78)
at org.springframework.orm.hibernate3.support.OpenSessionInViewFilter.doFilterInternal(OpenSessionInViewFilter.java:174)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:77)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:78)
at pl.com.source.wwmd.filter.UserDefineFilter.doFilter(UserDefineFilter.java:75)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:78)
at pl.com.source.wwmd.filter.ZkossThemeFilter.doFilter(ZkossThemeFilter.java:30)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:78)
at org.acegisecurity.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:264)
at org.acegisecurity.intercept.web.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:107)
at org.acegisecurity.intercept.web.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:72)
at org.acegisecurity.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:274)
at org.acegisecurity.wrapper.SecurityContextHolderAwareRequestFilter.doFilter(SecurityContextHolderAwareRequestFilter.java:81)
at org.acegisecurity.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:274)
at org.acegisecurity.ui.logout.LogoutFilter.doFilter(LogoutFilter.java:108)
at org.acegisecurity.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:274)
at org.acegisecurity.ui.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:110)
at org.acegisecurity.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:274)
at org.acegisecurity.ui.basicauth.BasicProcessingFilter.doFilter(BasicProcessingFilter.java:178)
at org.acegisecurity.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:274)
at org.acegisecurity.context.HttpSessionContextIntegrationFilter.doFilter(HttpSessionContextIntegrationFilter.java:193)
at org.acegisecurity.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:274)
at org.acegisecurity.util.FilterChainProxy.doFilter(FilterChainProxy.java:148)
at org.acegisecurity.util.FilterToBeanProxy.doFilter(FilterToBeanProxy.java:98)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:78)
at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.wrapRun(WebAppServletContext.java:3706)
at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.run(WebAppServletContext.java:3672)
at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:328)
at weblogic.security.service.SecurityManager.runAsForUserCode(SecurityManager.java:197)
at weblogic.servlet.provider.WlsSecurityProvider.runAsForUserCode(WlsSecurityProvider.java:203)
at weblogic.servlet.provider.WlsSubjectHandle.run(WlsSubjectHandle.java:71)
at weblogic.servlet.internal.WebAppServletContext.doSecuredExecute(WebAppServletContext.java:2443)
at weblogic.servlet.internal.WebAppServletContext.securedExecute(WebAppServletContext.java:2291)
at weblogic.servlet.internal.WebAppServletContext.execute(WebAppServletContext.java:2269)
at weblogic.servlet.internal.ServletRequestImpl.runInternal(ServletRequestImpl.java:1705)
at weblogic.servlet.internal.ServletRequestImpl.run(ServletRequestImpl.java:1665)
at weblogic.servlet.provider.ContainerSupportProviderImpl$WlsRequestExecutor.run(ContainerSupportProviderImpl.java:272)
at weblogic.invocation.ComponentInvocationContextManager._runAs(ComponentInvocationContextManager.java:352)
at weblogic.invocation.ComponentInvocationContextManager.runAs(ComponentInvocationContextManager.java:337)
at weblogic.work.LivePartitionUtility.doRunWorkUnderContext(LivePartitionUtility.java:57)
at weblogic.work.PartitionUtility.runWorkUnderContext(PartitionUtility.java:41)
at weblogic.work.SelfTuningWorkManagerImpl.runWorkUnderContext(SelfTuningWorkManagerImpl.java:652)
at weblogic.work.ExecuteThread.execute(ExecuteThread.java:420)
at weblogic.work.ExecuteThread.run(ExecuteThread.java:360)