基于注解的SpringMVC应用

1.创建Web项目&＃xff0c;引入Jar包

2.在配置文件中添加注解扫描配置springmvc-config.xml&＃xff0c;并定义视图解析器&＃xff08;这个代码在eclipse会报错&＃xff0c;但是不影响程序运行&＃xff09;

3.编写FirstController类&＃xff0c;在类和方法上添加相应注解

package com.itheima.controller;import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.springframework.web.servlet.ModelAndView;&＃64;Controller
&＃64;RequestMapping(value &＃61; "/hello")
public class FirstController {&＃64;RequestMapping(value &＃61; "/firstController")public String handleRequest(HttpServletRequest request, HttpServletResponse response, Model model) throws Exception{model.addAttribute("msg", "This is my second programe");return "first";}}


4.部署并启动项目&＃xff0c;访问地址http://localhost:8080/chapter12/hello/firstController

如果页面报错&＃xff0c;则关闭eclipse&＃xff0c;在打开eclipse&＃xff0c;重新运行即可。