使用struts2自定义拦截器，要引入defaultStack

使用自定义的拦截器配置在struts配置文件的action中，还要引入defaultStack，否则使用了modelDriven的formBean将不能获取到form表单中字段的值。

action：

 public class LoginAction implements Action, ModelDriven<UserForm> {
     private UserForm userForm=new UserForm();
     private IUserBO iUserBO;

     public String login() {
         User user=iUserBO.getUser(userForm.getUsername(), userForm.getPassword());
         if (user!=null) {
             return SUCCESS;
         } else {
             return ERROR;
         }

     }


     public String execute() throws Exception {
         // TODO Auto-generated method stub
         return SUCCESS;
     }

     public UserForm getModel() {
         return userForm;
     }

     public IUserBO getiUserBO() {
         return iUserBO;
     }

     public void setiUserBO(IUserBO iUserBO) {
         this.iUserBO = iUserBO;
     }

 }

拦截器：

 

 public class FilterTest extends MethodFilterInterceptor {
     Logger logger = Logger.getLogger(this.getClass());

     @Override
     protected String doIntercept(ActionInvocation invocation) throws Exception {
         // TODO Auto-generated method stub
         logger.info("==========action执行前插入代码===============");
         String s=invocation.invoke();
         logger.info("==========invocation.invoke():"+s);
         logger.info("==========action执行后插入代码===============");
         return s;
         }

 }

struts配置文件：

 <struts>

     <package name="struts" extends="struts-default" namespace="/test">
      <interceptors>
         <interceptor name="testInterceptor" class="filterBase.FilterTest">
         </interceptor>
      </interceptors>
         <action name="loginAction" class="LoginAction" method="login">
             <result name="success">/success.jsp</result>
             <result name="error">/error.jsp</result>
             <interceptor-ref name="defaultStack"/>
 <!-- 通过配置参数excludeMethods,设置不被拦截的方法,excludeMethods被拦截的方法 -->
             <interceptor-ref name="testInterceptor">
                 <param name="includeMethods">login</param>
             </interceptor-ref>
         </action>
     </package>
 </struts>