springmvc与struts2的区别

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1.机制：springmvc的入口是servlet,是方法级别的拦截，拦截到方法后根据参数上的注解，把request数据注入进去，而struts2是filter,是类级别的拦截，每次来了一个请求就创建一个action，然后调用seter与getter方法把request中的数据注入，struts2其实是setter与getter与request打交道

,这样导致了二者的机制不同

2.性能:springmvc比struts2快，springmvc是基于方法的设计，而struts2是基于类，

3.springmvc的验证也是亮点，支持JSR303,处理ajax的请求更是方便，只需一个注解@REsponseBOdy,然后直接返回响应文本即可

附上代码

@RequestMapping(method=RequestMethod.POST,value = "/login")
   @AvoidDuplicateSubmission(remove=true)
   @ResponseBody
   public Map<String, String> login(Model model,HttpServletRequest request, HttpServletResponse response) throws Exception {
       Map<String, String> map = new HashMap<String, String>();
       String UserName = request.getParameter("UserName");
       String Password = request.getParameter("Password");
       logger.info("UserName: " + UserName + ", Password: " + Password);
       try {
           TblPerson person = null;
           if(null == UserName || null == Password){
               map.put("failure","true");
               map.put("msg", "用户名和密码不能为空！");
               return map;
           }
           person = personService.findPersonByName(UserName);
           String pw=Constants.encodePassword(Password);
           if (null == person) {
               map.put("failure","true");
               map.put("msg", "登陆失败请确认用户名是否正确！");
           }
           else{
               if(!person.getPassword().equals(pw)){
                   map.put("failure", "true");
                   map.put("msg", "登录失败请确密码是否正确!");

               }
               else {
               request.getSession().setAttribute(Constants.USER_INFO_SESSION, person);
                   map.put("success", "true");
                   String path = request.getContextPath();
                   String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
                   map.put("msg", basePath+"main.jsp");
                   person.setLastLoginTime(new Timestamp(System.currentTimeMillis()));
                   personService.updatePersonService(person);
                   TblPersonlog userlog = new TblPersonlog();
                   userlog.setUserName(UserName);
                   userlog.setIP(getRemortIP(request));
                   userlog.setLogMessage(UserName + " login success");
                   userlog.setAddTime(new Timestamp(System
                                   .currentTimeMillis()));
                   personlogService.savePersonlogService(userlog);
               }
           }

       } catch (Exception e) {
           TblPersonlog userlog = new TblPersonlog();
           userlog.setUserName(UserName);
           userlog.setIP(getRemortIP(request));
           userlog.setLogMessage(UserName + " login success");
           userlog
                   .setAddTime(new Timestamp(System
                           .currentTimeMillis()));
           personlogService.savePersonlogService(userlog);
           map.put("failure","true");
           map.put("msg", "登陆异常请稍后再试！");
       }
       logger.info("user: " + UserName + "login success!");
       return map;
   }

4.设计思想上，struts2更加符合oop（面向对象编程）的编程思想，spring更加谨慎，在servlet上扩展

5,intercepter的实现机制：struts以自己的interceptor机制，而springmvc用的是独立的aop方式，这样导致struts2的配置文件比spring mvc大，虽然struts2配置也能继承，所以理论来讲，springmvc更加简洁，开发效率spring mvc确实比struts2 高

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