springmvc(二)页面跳转_spring modelanview templates-优快云博客


@Controller
public class UserController {
 @RequestMapping("/start12")
    @ResponseBody //告诉springmvc不进行页面跳转，是直接返回数据
    //只要浏览器url中的key和这里的str、user里的属性名称一致，springmvc就会自行解析请求
    //同样如果是表单提交，则可以用一个带有集合的对象来接收请求。
    public String save12(User user,String str,VO vo) throws IOException {
        System.out.println(user.toString()+str);
        return user.toString();
    }

//在这个方法里return的success会被加上配置文件中配好的前后缀:/jsp/success.jsp
    @RequestMapping("/start1")
    public String save(){
        System.out.println("Controller save running.....");
        return "success";
    }

    @RequestMapping("/start2")
    public ModelAndView save2(){
        //模型（封装数据）与视图（展示数据）
        ModelAndView modelAndView = new ModelAndView();
        //设置模型数据
        modelAndView.addObject("username","itcat");
        //设置视图名称
        modelAndView.setViewName("success");
         return modelAndView;
    }

    @RequestMapping("/start3")
    public ModelAndView save3(ModelAndView modelAndView){
        modelAndView.addObject("username","你好");
        modelAndView.setViewName("success");
        return modelAndView;
    }
 @RequestMapping("/start4")
    public String save3(Model model){
        model.addAttribute("username","username");
        return "success";
    }
@RequestMapping("/start5")
    public String save5(HttpServletRequest httpServletRequest){
        httpServletRequest.setAttribute("username","五号方法");
        return "success";
    }
}

jsp:

<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
    <title>Title</title>
</head>
<body>
 <h1>Success! ${username}</h1> //在这里获得modelanview设置的username
</body>
</html>

此处设置前缀后缀和扫描

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:context="http://www.springframework.org/schema/context"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd">

    <context:component-scan base-package="com.controller"/>

    <!--内部资源视图解析器，拼接controller返回的字符串，拼接出一个链接-->
    <bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
       <property name="prefix" value="/jsp/"/>  <!--前缀-->
      <property name="suffix" value=".jsp"/>   <!--后缀-->
    </bean>
</beans>