SpringMVC向前台JSP传值后，怎么把值取出来，用JSP或JQuery都可以
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举ä¾ï¼
1ãController.javaãã 两ç§å½¢å¼é½å¯ä»¥ï¼ä½æ¯ç¬¬äºç§ï¼jsp页é¢ä¸çåæ°æ¯personList1
//å表
@RequestMapping("/listAll")
public String listAll(Map<String,Object> model){
List<Person> personList = ps.listAll();
model.put("personList", personList);
System.out.println(" listall hello");
return "person/jPersonList";
}
//å表
@RequestMapping("/listAllOther")
public String listAllOther(Model model){
List<Person> personList1 = ps.listAll();
model.addAttribute(personList1);
System.out.println(" listallother1 hello");
return "person/jPersonList";
}
2ãjsp页é¢ä¸
<%@ page language="java" pageEncoding="UTF-8"%>
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>
<html>
<head>
<title>My JSP 'index.jsp' starting page</title>
</head>
<body>
<h2>ç¨æ·å表</h2>
<div style="padding:10px;"><a href="${pageContext.request.contextPath}/person/tocreate.action">æ°å¢</a></div>
<table border="1">
<tr>
<td>photo</td>
<td>id</td>
<td>name</td>
<td>age</td>
<td>æä½</td>
</tr>
<c:forEach items="${personList}" var="p">
<tr>
<td><img src="${pageContext.request.contextPath}"/></td>
<td>${p.id}</td>
<td>${p.name}</td>
<td>${p.age}</td>
<td>
<a href="${pageContext.request.contextPath}/person/toupdate.action?id=${p.id}">ä¿®æ¹</a>
<a href="${pageContext.request.contextPath}/person/delete.action?delId=${p.id}">å é¤</a>
</td>
</tr>
</c:forEach>
</table>
</body>
</html>
å¨springmvcä¸çcontrolleræ对åºçå½æ°ä¸ï¼å¦æéè¦ä»*.jsp页é¢ä¸è·åæ°æ®ï¼å¯ä»¥èªè¡å¨å½æ°æ¬å·ä¸åï¼springmvcä¼èªå¨å°è£ ä¼ è¿æ¥çã
举ä¾ï¼
1ãController.javaãã 两ç§å½¢å¼é½å¯ä»¥ï¼ä½æ¯ç¬¬äºç§ï¼jsp页é¢ä¸çåæ°æ¯personList1
//å表
@RequestMapping("/listAll")
public String listAll(Map<String,Object> model){
List<Person> personList = ps.listAll();
model.put("personList", personList);
System.out.println(" listall hello");
return "person/jPersonList";
}
//å表
@RequestMapping("/listAllOther")
public String listAllOther(Model model){
List<Person> personList1 = ps.listAll();
model.addAttribute(personList1);
System.out.println(" listallother1 hello");
return "person/jPersonList";
}
2ãjsp页é¢ä¸
<%@ page language="java" pageEncoding="UTF-8"%>
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>
<html>
<head>
<title>My JSP 'index.jsp' starting page</title>
</head>
<body>
<h2>ç¨æ·å表</h2>
<div style="padding:10px;"><a href="${pageContext.request.contextPath}/person/tocreate.action">æ°å¢</a></div>
<table border="1">
<tr>
<td>photo</td>
<td>id</td>
<td>name</td>
<td>age</td>
<td>æä½</td>
</tr>
<c:forEach items="${personList}" var="p">
<tr>
<td><img src="${pageContext.request.contextPath}"/></td>
<td>${p.id}</td>
<td>${p.name}</td>
<td>${p.age}</td>
<td>
<a href="${pageContext.request.contextPath}/person/toupdate.action?id=${p.id}">ä¿®æ¹</a>
<a href="${pageContext.request.contextPath}/person/delete.action?delId=${p.id}">å é¤</a>
</td>
</tr>
</c:forEach>
</table>
</body>
</html>
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第1个回答 2016-06-07
SpringMVC向前台JSP页面传值的方法：
在springmvc中的controller所对应的函数中，如果需要从*.jsp页面中获取数据，可以自行在函数括号中写，springmvc会自动封装传过来的。
spring-mvc.xml
中加入
<!-- 自动扫描 -->
<context:component-scan base-package="cn.itcast.springmvc.service,cn.itcast.springmvc.web.controller"/>
<!-- 注解驱动 -->
<mvc:annotatiController.java 两种形式都可以，但是第二种，jsp页面中的参数是on-driven/>
Controller.java 两种形式都可以，但是第二种，jsp页面中的参数是personList1
//列表
@RequestMapping("/listAll")
public String listAll(Map<String,Object> model){
List<Person> personList = ps.listAll();
model.put("personList", personList);
System.out.println(" listall hello");
return "person/jPersonList";
}
//列表
@RequestMapping("/listAllOther")
public String listAllOther(Model model){
List<Person> personList1 = ps.listAll();
model.addAttribute(personList1);
System.out.println(" listallother1 hello");
return "person/jPersonList";
}
jsp页面中
<%@ page language="java" pageEncoding="UTF-8"%>
<%@ taglib uri="" prefix="c"%>
<html>
<head>
<title>My JSP 'index.jsp' starting page</title>
</head>
<body>
<h2>用户列表</h2>
<div style="padding:10px;"><a href="${pageContext.request.contextPath}/person/tocreate.action">新增</a></div>
<table border="1">
<tr>
<td>photo</td>
<td>id</td>
<td>name</td>
<td>age</td>
<td>操作</td>
</tr>
<c:forEach items="${personList}" var="p">
<tr>
<td><img src="${pageContext.request.contextPath}"/></td>
<td>${p.id}</td>
<td>${p.name}</td>
<td>${p.age}</td>
<td>
<a href="${pageContext.request.contextPath}/person/toupdate.action?id=${p.id}">修改</a>
<a href="${pageContext.request.contextPath}/person/delete.action?delId=${p.id}">删除</a>
</td>
</tr>
</c:forEach>
</table>
</body>
</html>
在springmvc中的controller所对应的函数中，如果需要从*.jsp页面中获取数据，可以自行在函数括号中写，springmvc会自动封装传过来的。
spring-mvc.xml
中加入
<!-- 自动扫描 -->
<context:component-scan base-package="cn.itcast.springmvc.service,cn.itcast.springmvc.web.controller"/>
<!-- 注解驱动 -->
<mvc:annotatiController.java 两种形式都可以，但是第二种，jsp页面中的参数是on-driven/>
Controller.java 两种形式都可以，但是第二种，jsp页面中的参数是personList1
//列表
@RequestMapping("/listAll")
public String listAll(Map<String,Object> model){
List<Person> personList = ps.listAll();
model.put("personList", personList);
System.out.println(" listall hello");
return "person/jPersonList";
}
//列表
@RequestMapping("/listAllOther")
public String listAllOther(Model model){
List<Person> personList1 = ps.listAll();
model.addAttribute(personList1);
System.out.println(" listallother1 hello");
return "person/jPersonList";
}
jsp页面中
<%@ page language="java" pageEncoding="UTF-8"%>
<%@ taglib uri="" prefix="c"%>
<html>
<head>
<title>My JSP 'index.jsp' starting page</title>
</head>
<body>
<h2>用户列表</h2>
<div style="padding:10px;"><a href="${pageContext.request.contextPath}/person/tocreate.action">新增</a></div>
<table border="1">
<tr>
<td>photo</td>
<td>id</td>
<td>name</td>
<td>age</td>
<td>操作</td>
</tr>
<c:forEach items="${personList}" var="p">
<tr>
<td><img src="${pageContext.request.contextPath}"/></td>
<td>${p.id}</td>
<td>${p.name}</td>
<td>${p.age}</td>
<td>
<a href="${pageContext.request.contextPath}/person/toupdate.action?id=${p.id}">修改</a>
<a href="${pageContext.request.contextPath}/person/delete.action?delId=${p.id}">删除</a>
</td>
</tr>
</c:forEach>
</table>
</body>
</html>
第2个回答 2015-05-26
一个是返回modelandview直接new ModelAndView("**.jsp",Map或者list)，前台用el拿就行了，ajax的话，用@ResponseBody 注解方法的返回值，public @ResponseBody Object ***（）返回json格式要配置上AnnotationMethodHandlerAdapter注入mappingJacksonHttpMessageConverter本回答被提问者和网友采纳
