ModelAndView .addObject("user",user) <c:set var="user" value="${requestScope.user}" />

 

package test.SpringMVC;
//D:\Indigo_workspace2\HelloSpringMVC\src\test\SpringMVC\personController.java
import java.util.ArrayList;
import java.util.Date;
import java.util.List;

import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.ExceptionHandler;
import org.springframework.web.bind.annotation.ModelAttribute;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.servlet.ModelAndView;
//http://localhost:8080/HelloSpringMVC/person/showData

@Controller
@RequestMapping("/person")
public class personController {

  // http://localhost:8080/HelloSpringMVC/person/showData
  //使用modelAndView对象将数据传递到前台。
  //传递多个参数（不同类型的）
     @RequestMapping("/showData")
     public ModelAndView showData(){
        System.out.println("showData");
        
        String message = "这个是要传递的数据";
        
        User user = new User("张三", 12, new Date());
        
        List<User> us= new ArrayList<User>();
        us.add(new User("张三", 12, new Date()));
        us.add(new User("张四", 13, new Date()));
        us.add(new User("张五", 14, new Date()));
        
        ModelAndView mad = new ModelAndView("showData");
        //将数据存入modelMap
        mad.addObject("message", message);
        mad.addObject("user",user);//默认为类名的首字母小写
        mad.addObject("users", us);
        return mad;
    }
        
}
<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>   
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>D:\Indigo_workspace2\HelloSpringMVC\WebContent\WEB-INF\jsp\showData.jsp</title>
</head>
<body>
message:<br/>
request:${requestScope.message}<br/>
<br/>

user:<br/>
<c:set var="user"  value="${requestScope.user}"  />
${user.name }-${user.age }-${user.birthday }<br/>
<br/>

users:<br/>
<c:forEach items="${requestScope.users }" var="u">
      ${u.name }-${u.age }-${u.birthday }<br/>
</c:forEach>
   
</body>
</html>

http://localhost:8080/HelloSpringMVC/person/showData

message:
 request:这个是要传递的数据

user:
张三-12-Tue Jan 09 17:22:38 CST 2018

 users:
张三-12-Tue Jan 09 17:22:38 CST 2018
张四-13-Tue Jan 09 17:22:38 CST 2018
张五-14-Tue Jan 09 17:22:38 CST 2018

 

posted @ 2018-01-09 17:27  sky20080101  阅读(311)  评论(0)    收藏  举报