目录
- 1. 基本类型的数据封装
- 2. pojo（bean)类型的封装
- 3. 数组类型
- 4. list集合类型
1. 基本类型的数据封装
//http://localhost:8080/spring_mvc_01/user/save8?name=bitqian&age=19
@RequestMapping(value = "/save8")
@ResponseBody
public void save8(String name, int age) {System.out.println(name + "\t" + age);
}
2. pojo（bean)类型的封装
//http://localhost:8080/spring_mvc_01/user/save8?name=bitqian&age=19@RequestMapping(value = "/save9")@ResponseBodypublic void save9(User user) {System.out.println(user);}
3. 数组类型
@RequestMapping(value = "/save10")
@ResponseBody
public void save10(String[] arr) {// http://localhost:8080/spring_mvc_01/user/save10?arr=abc&arr=def&arr=ghiSystem.out.println(Arrays.asList(arr));
}
4. list集合类型
1.通过viewobject视图对象类，里面装集合
- view object 实体
package com.bitqian.entity;import java.util.List;/*** user view object* @author echo lovely* @date 2020/9/1 20:25*/
public class ViewObject {private List<User> userList;public List<User> getUserList() {return userList;}public void setUserList(List<User> userList) {this.userList = userList;}@Overridepublic String toString() {return "ViewObject{" +"userList=" + userList +'}';}
}- 接收表单提交的数据
// 封装集合1
@RequestMapping(value = "/save11")
@ResponseBody
public void save11(ViewObject vo) {System.out.println(vo);
}
- 表单提交
<%--Created by IntelliJ IDEA.User: echo lovelyDate: 2020/9/1Time: 20:31使用spring-mvc框架封装集合
--%>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head><title>spring -mvc框架封装集合</title>
</head>
<body><form action="user/save11" method="post"><input type="text" name="userList[0].name"/> <br/><input type="text" name="userList[0].age"> <br/><input type="text" name="userList[1].name"/> <br/><input type="text" name="userList[1].age"> <br/><input type="submit" value="提交" /></form></body>
</html>- 通过ajax提交json集合数据，mvc自动封装（静态资源404问题）
- 页面
<%--Created by IntelliJ IDEA.User: echo lovelyDate: 2020/9/1Time: 20:58ajax 提交json格式的数据
--%>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head><title>ajax 提交json格式的数据</title><%--静态资源权限问题..--%><script src="js/jquery.min.js"></script><script>$(function () {let userList = new Array();userList.push({name:"jack", age:19});userList.push({name:"rose", age:18});$.ajax({url: "user/save12",type: "post",data: JSON.stringify(userList),contentType: "application/json;charset=utf-8",success: function (data) {console.log('data', data);},error: function (e) {console.log(e);}});});</script>
</head>
<body></body>
</html>- @requestBody封装数据到集合
@RequestMapping(value = "/save12")@ResponseBodypublic void save12(@RequestBody List<User> list) {System.out.println(list);}
- 加载静态资源
<!--加载静态资源-->
<mvc:resources mapping="/js/**" location="/js/"/><!--<mvc:default-servlet-handler/>-->
