借助 org.springframework.ui.Model 对象或 Map 对象将信息传到 springmvc 的页面中
需要:jstl 支持 和 EL 表达式
1.maven 添加依赖:
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<!-- jstl(jsp 标准标签库) -->
;dependency>
< groupId >jstl</ groupId >
< artifactId >jstl</ artifactId >
< version >1.2</ version >
;/dependency>
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2.controller 中的方法
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/**
*
*/
@Controller
@RequestMapping("/hello")
public class HelloController {
/**
* 请求地址:项目名/hello/userinfo
* @return
*/
@RequestMapping("userinfo")
public String userinfo(org.springframework.ui.Model model,Map< String , Object> map){
//传递单个对象
UserInfoModel info = new UserInfoModel("张三",99,"男");
model.addAttribute("info",info);
List< UserInfoModel > list = new ArrayList< UserInfoModel >();
list.add(new UserInfoModel("李四",20,"男"));
list.add(new UserInfoModel("王五",21,"女"));
list.add(new UserInfoModel("赵六",22,"男"));
//传递多个对象
map.put("user_list", list);
return "hello/userinfo"; //servlet.xml 中定义的 前缀(prefix)+返回值+后缀(suffix)拼接的物理地址
}
}
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3.测试实体对象
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package demo.models.hello;
import java.util.Date;
/**
*
*/
public class UserInfoModel {
public UserInfoModel(String name,int age,String sex){
this.name=name;
this.age=age;
this.sex=sex;
this.date = new Date();
}
String name;
int age;
String sex;
Date date;
public Date getDate() {
return date;
}
public void setDate(Date date) {
this.date = date;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public int getAge() {
return age;
}
public void setAge(int age) {
this.age = age;
}
public String getSex() {
return sex;
}
public void setSex(String sex) {
this.sex = sex;
}
}
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4.jsp 页面
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<%@ page language="java" contentType="text/html; charset=utf-8"
pageEncoding="utf-8"%>
<!-- 引入jstl core库 ,使用 循环标签-->
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>
<!-- 引入jstl fmt库,格式化时间标签 -->
<%@ taglib prefix="fmt" uri="http://java.sun.com/jsp/jstl/fmt" %>
<!-- 开启 EL 表达式支持 -->
<%@ page isELIgnored="false"%>
<!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 >Insert title here</ title >
< script scr = "/content/index.js" ></ script >
< link href = "/content/index.css" rel = "external nofollow" />
</ head >
< body >
< h3 >页面信息</ h3 >
< div >url:${pageContext.request.contextPath}</ div >
< h3 >用户信息</ h3 >
< div >name:${info.name}</ div >
< div >age:${info.age}</ div >
< div >sex:${info.sex}</ div >
< div >date:< fmt:formatDate pattern = "yyyy-MM-dd HH:mm:ss" value = "${info.date}" /></ div >
< h3 >用户列表</ h3 >
< table border = "1" >
< tr >
< td >name</ td >
< td >age</ td >
< td >sex</ td >
< td >date</ td >
</ tr >
< c:forEach items = "${user_list}" var = "p" >
< tr >
< td >${p.name}</ td >
< td >${p.age}</ td >
< td >${p.sex}</ td >
< td >< fmt:formatDate pattern = "yyyy-MM-dd HH:mm:ss" value = "${p.date}" /></ td >
</ tr >
</ c:forEach >
< tr >
< td colspan = "4" style = "text-align: center;" >jstl forEach</ td >
</ tr >
< tr >
< td >行号</ td >
< td >col1</ td >
< td >col2</ td >
< td >col3</ td >
</ tr >
< c:forEach begin = "1" end = "5" var = "i" >
< tr >
< td >${i}</ td >
< td >${i+2}</ td >
< td >${i+3}</ td >
< td >${i+4}</ td >
</ tr >
</ c:forEach >
</ table >
</ body >
</ html >
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以上这篇java-jsp springmvc-controller 传值到页面的方法就是小编分享给大家的全部内容了,希望能给大家一个参考,也希望大家多多支持服务器之家。
原文链接:https://blog.csdn.net/xxj_jing/article/details/68488174