在Struts 2中使用拦截器进行身份验证后的java登录重定向

Question

我有一个登录页面。登录请求可以来自多个操作类。验证用户后，我必须将其重定向到上一个action类（登录请求来自该类）。我使用拦截器来做这件事。但我错过了一些东西，它无法正确重定向

这是我的代码：

public class SetTargetInterceptor extends MethodFilterInterceptor implements
    Interceptor {
private static final long serialVersionUID = 1L;

public String doIntercept(ActionInvocation invocation) throws Exception {
    Object action = invocation.getAction();
    HttpServletRequest request = (HttpServletRequest) invocation
            .getInvocationContext().get(StrutsStatics.HTTP_REQUEST);
    if (action instanceof TargetAware) {
        TargetAware targetAwareAction = (TargetAware) action;
        if (targetAwareAction.getTarget() == null)
            targetAwareAction.setTarget(getCurrentUri(request));
    }
    return invocation.invoke();
}

private static String getCurrentUri(HttpServletRequest request) {
    String uri = request.getRequestURI();
    String[] arr = org.apache.commons.lang3.StringUtils.split(uri, "/");
    for (int i = 0; i < arr.length; i++) {
        System.out.println(arr[i]);
    }
    if (arr != null && arr.length > 0) {
        int len = arr.length;
        uri = arr[len - 1];
    }

    String queryString = request.getQueryString();

    if (queryString != null && !queryString.equals(""))
        uri += "?" + queryString;
    return uri;

}

public void init() { /* do nothing */
}

public void destroy() { /* do nothing */
}

Mystruts.xml:

<interceptors>  
<interceptor name="setTargetInterceptor" 
class="com.markEffy.aggregator.interceptors.SetTargetInterceptor"></interceptor>

     <interceptor-stack name="newStack">
        <interceptor-ref name="setTargetInterceptor"/>
    <interceptor-ref name="defaultStack" />
      </interceptor-stack>

</interceptors>
 <action name="login" 
        class="com.markEffy.aggregator.web.LoginAction" 
        method="login">
  <result name="success"  type="redirect">
  <param name="location">${target}</param>
  <param name="parse">true</param>
   </result>
 <action name="reload" 
        class="com.markEffy.aggregator.web.PathFinderAction" 
        method="execute">
         <interceptor-ref name="newStack"/>
        <result name="success">/results.jsp</result>
  </action>

PathFinderAction可以请求登录loginAction用于验证用户

Answer 1

您缺少将使用动态参数作为目标操作URL的全局结果

<global-results>
    <result name="return" type="redirect">${target}</result>
</global-results> 

您可以从拦截器或实现TargertAware的操作返回此结果。target属性应该有一个由结果调用的getter