SpringMVC中ModelAndView的使用
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2024-02-27 20:45:15
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例子：
MAVTest.java
package com.wyl;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.servlet.ModelAndView;
/**
* ModelAndView测试，
*
*/
@Controller
public class MAVTest {
public MAVTest() {
// TODO Auto-generated constructor stub
}
@RequestMapping(value = "login")
public ModelAndView login() {
System.out.println("MAVTest.java login()....");
ModelAndView mav = new ModelAndView();
mav.setViewName("welcome");
mav.addObject("msg", "hello kitty");
// List
List<String> list = new ArrayList<String>();
list.add("java");
list.add("c++");
list.add("oracle");
mav.addObject("bookList", list);
// Map
Map<String, String> map = new HashMap<String, String>();
map.put("zhangsan", "北京");
map.put("lisi", "上海");
map.put("wangwu", "深圳");
mav.addObject("map", map);
return mav;
}
}welcome.jsp
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<base href="<%=basePath%>">
<title>welcome页面</title>
<meta http-equiv="pragma" content="no-cache">
<meta http-equiv="cache-control" content="no-cache">
<meta http-equiv="expires" content="0">
<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
<meta http-equiv="description" content="This is my page">
<!--
<link rel="stylesheet" type="text/css" href="styles.css">
-->
</head>
<body>
<!-- 输出普通字符 -->
${msg } <br/>
<!-- 输出List -->
<p>书籍列表</p>
<c:forEach items="${bookList}" var="node">
<c:out value="${node}"></c:out>
</c:forEach>
<br/>
<br/>
<!-- 输出Map -->
<c:forEach items="${map}" var="node">
姓名：<c:out value="${node.key}"></c:out>
住址：<c:out value="${node.value}"></c:out>
<br/>
</c:forEach>
</body>
</html>注意：c标签所依赖的jar,jstl.jar,commons-el.jar,standard.jar
项目结构：