新建实体类，User和UserList
1 package com.yas.entity;
2
3 import java.util.Date;
4
5 public class User {
6 private Integer id;
7 private String name;
8 private Boolean gender;
9 private Date birth;
10
11 public User() {
12 }
13
14 public User(Integer id, String name, Boolean gender, Date birth) {
15 this.id = id;
16 this.name = name;
17 this.gender = gender;
18 this.birth = birth;
19 }
20
21 public Integer getId() {
22 return id;
23 }
24
25 public void setId(Integer id) {
26 this.id = id;
27 }
28
29 public String getName() {
30 return name;
31 }
32
33 public void setName(String name) {
34 this.name = name;
35 }
36
37 public Boolean getGender() {
38 return gender;
39 }
40
41 public void setGender(Boolean gender) {
42 this.gender = gender;
43 }
44
45 public Date getBirth() {
46 return birth;
47 }
48
49 public void setBirth(Date birth) {
50 this.birth = birth;
51 }
52
53 @Override
54 public String toString() {
55 return "User{" +
56 "id=" + id +
57 ", name='" + name + '\'' +
58 ", gender=" + gender +
59 ", birth=" + birth +
60 '}';
61 }
62 }
1 package com.yas.entity;
2
3 import java.util.ArrayList;
4 public class UserList {
5 private ArrayList<User> users;
6
7 public ArrayList<User> getUsers() {
8 return users;
9 }
10
11 public void setUsers(ArrayList<User> users) {
12 this.users = users;
13 }
14 }
建立用于测试的Controller：ParamController
1 package com.yas.controller;
2
3 import com.yas.entity.User;
4 import com.yas.entity.UserList;
5 import org.springframework.stereotype.Controller;
6 import org.springframework.web.bind.annotation.PathVariable;
7 import org.springframework.web.bind.annotation.RequestMapping;
8 import org.springframework.web.bind.annotation.RequestParam;
9
10 import java.util.Date;
11
12 @Controller
13 @RequestMapping("/param")
14 public class ParamController {
15
16 // http://localhost:8080/param/test1?id=1&name=zhangsan&gender=true&birth=2021/10/26
17 @RequestMapping("/test1")
18 public String test1(@RequestParam("id") Integer id,
19 @RequestParam("name") String name,
20 @RequestParam("gender") Boolean gender,
21 @RequestParam("birth") Date birth){
22 System.out.println(id);
23 System.out.println(name);
24 System.out.println(gender);
25 System.out.println(birth);
26
27 return "hello";
28 }
29
30 // http://localhost:8080/param/test2?id=1&name=zhangsan&gender=true&birth=2021/10/26
31 @RequestMapping("/test2")
32 public String test2(User user){
33 System.out.println(user.getId());
34 System.out.println(user.getName());
35 System.out.println(user.getGender());
36 System.out.println(user.getBirth());
37
38 return "hello";
39 }
40
41 // http://localhost:8080/param/test3?hobby=football&hobby=basketball&hobby=volleyball
42 @RequestMapping("/test3")
43 public String test3(@RequestParam("hobby") String[] hobby){
44 for(String h : hobby){
45 System.out.println(h);
46 }
47 return "hello";
48 }
49
50 // http://localhost:8080/param.jsp
51 @RequestMapping("/test4")
52 public String test4(UserList userList){
53 if(userList!=null) {
54 for (User user : userList.getUsers()) {
55 System.out.println(user.toString());
56 }
57 }
58 return "hello";
59 }
60
61 // http://localhost:8080/param/test5/1
62 @RequestMapping("/test5/{id}")
63 public String test5(@PathVariable("id") Integer id){
64 System.out.println(id);
65 return "hello";
66 }
67
68 // http://localhost:8080/param/test6/1/zhangsan
69 @RequestMapping("/test6/{id}/{name}")
70 public String test5(@PathVariable("id") Integer id,
71 @PathVariable("name") String name){
72 System.out.println(id);
73 System.out.println(name);
74 return "hello";
75 }
76 }
建立测试用jsp页面
<%--
Created by IntelliJ IDEA.
User: yanga
Date: 2021/10/26
Time: 11:30
To change this template use File | Settings | File Templates.
--%>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
<title>prarm.jsp</title>
</head>
<body>
<%-- <form action="${pageContext.request.contextPath}/param/test3">--%>
<%-- <input type="checkbox" name="hobby" value="football"> 足球--%>
<%-- <input type="checkbox" name="hobby" value="basketball"> 篮球--%>
<%-- <input type="checkbox" name="hobby" value="volleyball"> 排球--%>
<%-- <input type="submit" value="提交">--%>
<%-- </form>--%>
<form action="${pageContext.request.contextPath}/param/test4" method="post">
id:<input type="text" name="users[0].id" value="1"><br>
name:<input type="text" name="users[0].name" value="zhangsan"><br>
gender:<input type="text" name="users[0].gender" value="true"><br>
<hr>
id:<input type="text" name="users[1].id" value="2"><br>
name:<input type="text" name="users[1].name" value="lisi"><br>
gender:<input type="text" name="users[1].gender" value="false"><br>
<input type="submit" value="提交">
</form>
</body>
</html>
修改web.xml，添加post请求包含中文的编码处理：
<?xml version="1.0" encoding="UTF-8"?>
<web-app version="3.0" xmlns="http://java.sun.com/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd">
<!--configure the setting of springmvcDispatcherServlet and configure the mapping-->
<servlet>
<servlet-name>springmvc</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:mvc.xml</param-value>
</init-param>
<!-- <load-on-startup>1</load-on-startup> -->
</servlet>
<servlet-mapping>
<servlet-name>springmvc</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
<!-- 配置springMVC编码过滤器 -->
<filter>
<filter-name>CharacterEncodingFilter</filter-name>
<filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
<!-- 设置过滤器中的属性值 -->
<init-param>
<param-name>encoding</param-name>
<param-value>UTF-8</param-value>
</init-param>
<!-- 启动过滤器 -->
<init-param>
<param-name>forceEncoding</param-name>
<param-value>true</param-value>
</init-param>
</filter>
<!-- 过滤所有请求 -->
<filter-mapping>
<filter-name>CharacterEncodingFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
</web-app>