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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