package com.huawei.controller;

 import java.util.HashSet;

 import java.util.Set;

 import org.springframework.stereotype.Controller;

 import org.springframework.ui.Model;

 import org.springframework.web.bind.annotation.RequestMapping;

 import org.springframework.web.bind.annotation.RequestMethod;

 import org.springframework.web.bind.annotation.RequestParam;

 import com.huawei.entity.User;

 @Controller

 public class LoginController {

     private static Set<User> set;

     public Set<User> getSet() {

         return set;

     }

     public void setSet(Set<User> set) {

         this.set = set;

     }

     static{

         set = new HashSet<User>();

         User user1 = new User(1, "tom", "123");

         User user2 = new User(2, "sofiya", "123");

         User user3 = new User(3, "xuanxuan", "123");

         set.add(user1);

         set.add(user2);

         set.add(user3);

     }

     @SuppressWarnings("unused")

     @RequestMapping(value={"/login"},method=RequestMethod.POST)

     public String login(@RequestParam("username") String username, @RequestParam("password") String password,Model modle) {

         String result=null;

         for (User user : set) {

             if (user.getUsername().equals(username) && user.getPassword().equals(password)) {

                 result = "success";

                 break;

             } else {

                 result = "login";

             }

         }

         return result;

     }

     @RequestMapping("/view")

     public String view(){

         return "login";

     }

 }

 package com.huawei.aop;

 import org.aspectj.lang.JoinPoint;

 import org.aspectj.lang.annotation.Aspect;

 import org.aspectj.lang.annotation.Before;

 import org.springframework.stereotype.Component;

 @Component

 @Aspect

 public class LoginAop {

     @Before("execution(* com.huawei.controller.*.*(..))")

     public void befores(JoinPoint point){

         System.out.println(point);

         System.out.println("LoginAop.befores()");

             登陆验证方法省略

     }

 }