springmvc使用aop心得

第一步：创建aop拦截类：

 @Component
 @Aspect
 public class ControllerSelectorInterceptor {
     @Before("execution(* com.my.test..*.*Controller.*(..))")
     public void doBefore(JoinPoint jp) {
         StringBuffer method = new StringBuffer();
         method.append(jp.getTarget().getClass().getName()).append(".").append(jp.getSignature().getName());
         Object[] args = jp.getArgs();

         HttpServletRequest request = null;
         for(Object arg : args){
             if(arg instanceof HttpServletRequest){
                 request = (HttpServletRequest)arg;
             }
         }
     } 

      @After("execution(* com.my.test..*.*Controller.*(..))")
      public void doAfter(JoinPoint jp) {
         Object[] args = jp.getArgs();
         StringBuffer method = new StringBuffer();
         method.append(jp.getTarget().getClass().getName()).append(".").append(jp.getSignature().getName());

         HttpServletRequest request = null;
         for(Object arg : args){
             if(arg instanceof HttpServletRequest){
                 request = (HttpServletRequest)arg;
             }
         }
         String account = request.getParameter("accountName");
      }
 }

第二步：在配置文件中加入以下配置：

     <aop:aspectj-autoproxy  proxy-target-class="true" />

注：aop的详细介绍可以参考：http://www.360doc.com/content/11/1103/09/4280915_161262623.shtml