如何使用註釋鏈接自定義攔截器

我手頭有一個自定義攔截器，我希望它使用註釋與Action類關聯。我又增加了使用struts.xml中聲明的一個攔截，裁判，但我得到的例外是，如何使用註釋鏈接自定義攔截器

"SEVERE: Exception starting filter Struts2 
Unable to load configuration. - [unknown location]"

我的Action類如下，

@Action(value = "/login", results = { 
      @Result(name = "success", location = "/Welcome.jsp"), 
      @Result(name = "error", location = "/Login.jsp") }, 
      interceptorRefs = { 
       @InterceptorRef("defaultStack"), 
       @InterceptorRef("myLogging")} 
    ) 
    public String validateCredentials() { 
     if (this.userName.equals("Raj") && this.password.equals("aspire")) { 
      return "success"; 
     } else { 
      // addActionError(getText("error.login")); 
      return "error"; 
     } 
    }

我struts.xml的是如下，

<package name="default" extends="struts-default" namespace="/"> 
     <interceptors> 
      <interceptor name="myLogging" class="org.struts.hello.MyLoggingInterceptor"/> 
     </interceptors> 
    </package>

錯誤堆棧：

SEVERE: Exception starting filter Struts2 
Unable to load configuration. - [unknown location] 
    at com.opensymphony.xwork2.config.ConfigurationManager.getConfiguration(ConfigurationManager.java:58) 
    at org.apache.struts2.dispatcher.Dispatcher.init_PreloadConfiguration(Dispatcher.java:360) 
    at org.apache.struts2.dispatcher.Dispatcher.init(Dispatcher.java:403) 
    at org.apache.struts2.dispatcher.FilterDispatcher.init(FilterDispatcher.java:190) 
    at org.apache.catalina.core.ApplicationFilterConfig.getFilter(ApplicationFilterConfig.java:295) 
    at org.apache.catalina.core.ApplicationFilterConfig.setFilterDef(ApplicationFilterConfig.java:422) 
    at org.apache.catalina.core.ApplicationFilterConfig.<init>(ApplicationFilterConfig.java:115) 
    at org.apache.catalina.core.StandardContext.filterStart(StandardContext.java:3838) 
    at org.apache.catalina.core.StandardContext.start(StandardContext.java:4488) 
    at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1045) 
    at org.apache.catalina.core.StandardHost.start(StandardHost.java:785) 
    at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1045) 
    at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:443) 
    at org.apache.catalina.core.StandardService.start(StandardService.java:519) 
    at org.apache.catalina.core.StandardServer.start(StandardServer.java:710) 
    at org.apache.catalina.startup.Catalina.start(Catalina.java:581) 
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) 
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) 
    at java.lang.reflect.Method.invoke(Unknown Source) 
    at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:289) 
    at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:414) 
Caused by: Unable to find interceptor class referenced by ref-name loggingStack - [unknown location] 
    at com.opensymphony.xwork2.config.providers.InterceptorBuilder.constructInterceptorReference(InterceptorBuilder.java:52) 
    at org.apache.struts2.convention.DefaultInterceptorMapBuilder.buildInterceptorList(DefaultInterceptorMapBuilder.java:99) 
    at org.apache.struts2.convention.DefaultInterceptorMapBuilder.build(DefaultInterceptorMapBuilder.java:90) 
    at org.apache.struts2.convention.DefaultInterceptorMapBuilder.build(DefaultInterceptorMapBuilder.java:74) 
    at org.apache.struts2.convention.PackageBasedActionConfigBuilder.createActionConfig(PackageBasedActionConfigBuilder.java:676) 
    at org.apache.struts2.convention.PackageBasedActionConfigBuilder.buildConfiguration(PackageBasedActionConfigBuilder.java:493) 
    at org.apache.struts2.convention.PackageBasedActionConfigBuilder.buildActionConfigs(PackageBasedActionConfigBuilder.java:278) 
    at org.apache.struts2.convention.ClasspathPackageProvider.loadPackages(ClasspathPackageProvider.java:52) 
    at com.opensymphony.xwork2.config.impl.DefaultConfiguration.reloadContainer(DefaultConfiguration.java:200) 
    at com.opensymphony.xwork2.config.ConfigurationManager.getConfiguration(ConfigurationManager.java:55) 
    ... 21 more 
Dec 22, 2011 3:30:22 PM org.apache.catalina.core.StandardContext start 
SEVERE: Error filterStart 
Dec 22, 2011 3:30:22 PM org.apache.catalina.core.StandardContext start 
SEVERE: Context [/StrutsAnnotation] startup failed due to previous errors

來源

2011-12-22 Rajkumar Palani

可以顯示完整的錯誤控制檯？ – 2011-12-22 09:55:17

我沒有太多的exp使用註釋或不使用struts2，但我相信你使用的是convention-plugin。這裏有關他們對你的問題的評論。

如果您收到諸如「無法找到引用 ref-name XYZ的攔截器類」的錯誤。這意味着公約將您的行爲置於的包裹，並不會擴展攔截器定義爲的包裹。要解決此問題，或者

使用@ParentPackage註釋（或struts.convention.default.parent.package）傳遞定義攔截所述包的名稱。

用XML創建一個包，該包擴展了定義攔截器的包，並使用@ParentPackage（或Struts.convention.default.parent.package）指向它。

欲瞭解更多詳情，請參閱有文檔

convention-plugin

來源

2011-12-22 10:14:46

雅的工作..謝謝.. – 2011-12-22 10:27:08

@Raj：如果這有助於你，你可以標記答案接受:) – 2011-12-22 10:27:45

如何使用註釋鏈接自定義攔截器

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