SpringMVC两种处理器适配器

1、实现Controller接口的处理器适配器

package com.xiaostudy;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.springframework.web.servlet.ModelAndView;
import org.springframework.web.servlet.mvc.Controller;

public class MyController implements Controller{

    public ModelAndView handleRequest(HttpServletRequest request, HttpServletResponse response) throws Exception {
        //创建视图
        ModelAndView modelAndView = new ModelAndView();
        
        //设置页面回显数据
        modelAndView.addObject("hello", "xiaostudy");
        
        //返回物理视图,指定跳转的视图
//        mv.setViewName("/WEB-INF/index.jsp");
        
        //返回逻辑视图
        modelAndView.setViewName("index");
        
        return modelAndView;
    }

}

2、实现HttpRequestHandler接口的处理器适配器

package com.xiaostudy;

import java.io.IOException;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.springframework.web.HttpRequestHandler;

public class HttpController implements HttpRequestHandler{

    @Override
    public void handleRequest(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        request.setAttribute("hello", "xiaostudy.xiaostudy");
        request.getRequestDispatcher("/WEB-INF/index.jsp").forward(request, response);
    }

}

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