16.SpringMVC Restful

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项目目录结构:

项目依赖包:

Vo: UserVo.java

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package com.course.vo;

import java.util.Date;

import org.springframework.format.annotation.DateTimeFormat;

import com.fasterxml.jackson.annotation.JsonFormat;

public class UserVo {

	private Integer id;
	private String name;
	private Integer age;
	private String address;
	
	// 前端->后端: 时间类型格式转换
	@DateTimeFormat(pattern = "yyyy-MM-dd")
	// 后端->前端: 时间类型格式转换，使用Jackson生成json对象时把时间进行格式化
	@JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss", timezone = "GMT+8")
	private Date time;

	public UserVo() {
		super();
	}

	public UserVo(Integer id, String name, Integer age, String address, Date time) {
		super();
		this.id = id;
		this.name = name;
		this.age = age;
		this.address = address;
		this.time = time;
	}

	public Integer getId() {
		return id;
	}

	public void setId(Integer id) {
		this.id = id;
	}

	public String getName() {
		return name;
	}

	public void setName(String name) {
		this.name = name;
	}

	public Integer getAge() {
		return age;
	}

	public void setAge(Integer age) {
		this.age = age;
	}

	public String getAddress() {
		return address;
	}

	public void setAddress(String address) {
		this.address = address;
	}

	public Date getTime() {
		return time;
	}

	public void setTime(Date time) {
		this.time = time;
	}

	@Override
	public String toString() {
		return "UserVo [id=" + id + ", name=" + name + ", age=" + age + ", address=" + address + ", time=" + time + "]";
	}
	
}

Controller: 

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package com.course.controller;

import java.util.ArrayList;
import java.util.Date;
import java.util.List;

import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.ResponseBody;

import com.course.vo.UserVo;

@Controller
@RequestMapping("userModule")
public class UserController {
	
	@RequestMapping(value = "user", method = RequestMethod.POST)
	@ResponseBody
	public String addUser(UserVo userVo) {
		System.out.println("addUser: ");
		System.out.println(userVo);
        // addUser: 
		// UserVo [id=1, name=user1, age=10, address=address1, time=Sun May 01 00:00:00 CST 2022]
		return "success: addUser, userVo = " + userVo;
	}
	
	@RequestMapping(value = "user", method = RequestMethod.PUT)
	@ResponseBody
	public String updateUser() {
		System.out.println("updateUser: ");
        // updateUser: 
		return "success: updateUser";
	}
	
	@RequestMapping(value = "user/{id}", method = RequestMethod.DELETE)
	@ResponseBody
	public String deleteUserById(@PathVariable(value = "id") Integer id) {
		System.out.println("deleteUserById: ");
		System.out.println("id = " + id);
        // deleteUserById: 
		// id = 1
		return "success: deleteUserById, id = " + id;
	}
	
	@RequestMapping(value = "user/{id}", method = RequestMethod.GET)
	@ResponseBody
	public String getUserById(@PathVariable(value = "id") Integer id) {
		System.out.println("getUserById: ");
		System.out.println("id = " + id);
        // getUserById: 
		// id = 2
		return "success: getUserById, id = " + id;
	}
	
	@RequestMapping(value = "user", method = RequestMethod.PATCH)
	@ResponseBody
	public List<UserVo> getAllUser() {
		UserVo userVo1 = new UserVo(1, "user1", 10, "address1", new Date());
		UserVo userVo2 = new UserVo(2, "user2", 11, "address2", new Date());
		UserVo userVo3 = new UserVo(3, "user3", 11, "address3", new Date());
		List<UserVo> userVoList = new ArrayList<>();
		userVoList.add(userVo1);
		userVoList.add(userVo2);
		userVoList.add(userVo3);
		
		System.out.println("getAllUser: userVoList = " + userVoList);
        // getAllUser: userVoList = [UserVo [id=1, name=user1, age=10, address=address1, time=Sun May 15 11:16:24 CST 2022], UserVo [id=2, name=user2, age=11, address=address2, time=Sun May 15 11:16:24 CST 2022], UserVo [id=3, name=user3, age=11, address=address3, time=Sun May 15 11:16:24 CST 2022]]
		
		return userVoList;
	}
	
}

log4j.properties

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# Global logging configuration
log4j.rootLogger=INFO, stdout
# MyBatis logging configuration...
log4j.logger.org.mybatis.example.BlogMapper=TRACE
# Console output...
log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
log4j.appender.stdout.layout.ConversionPattern=%5p [%t] - %m%n

springmvc.xml

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<?xml version="1.0" encoding="UTF-8"?>

<!-- 头文件 -->
<beans xmlns="http://www.springframework.org/schema/beans"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
	xmlns:context="http://www.springframework.org/schema/context"
	xmlns:mvc="http://www.springframework.org/schema/mvc"
	xmlns:aop="http://www.springframework.org/schema/aop"
	xmlns:tx="http://www.springframework.org/schema/tx"
	xsi:schemaLocation="http://www.springframework.org/schema/beans
        http://www.springframework.org/schema/beans/spring-beans.xsd
        http://www.springframework.org/schema/context
	    http://www.springframework.org/schema/context/spring-context.xsd
        http://www.springframework.org/schema/mvc
		http://www.springframework.org/schema/mvc/spring-mvc.xsd">
		

	<!-- 
		配置控制器
		包扫描
	 -->
	 <context:component-scan base-package="com.course.controller"></context:component-scan>
	
	<!-- 
		合并注解的控制器映射器和控制器适配器的配置
		对控制器映射器和控制器适配器进行加强，如把对象转化为json字符串
	 -->
	<mvc:annotation-driven></mvc:annotation-driven>
	
	<!-- 配置视图解析器 -->
	<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
		<!-- 配置前缀 -->
		<property name="prefix" value="/WEB-INF/view/"></property>
		<!-- 配置后缀 -->
		<property name="suffix" value=".jsp"></property>
	</bean>
	
</beans>

web.xml

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<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" id="WebApp_ID" version="3.0">
  <display-name>01_springmvc_hello</display-name>
  <welcome-file-list>
    <welcome-file>index.html</welcome-file>
    <welcome-file>index.htm</welcome-file>
    <welcome-file>index.jsp</welcome-file>
    <welcome-file>default.html</welcome-file>
    <welcome-file>default.htm</welcome-file>
    <welcome-file>default.jsp</welcome-file>
  </welcome-file-list>
  
  <!-- 配置SpringMVC编码过滤器 -->
  <filter>
  	<filter-name>encodingFilter</filter-name>
  	<filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
  	<!-- 配置编码的值 -->
  	<init-param>
  		<param-name>encoding</param-name>
  		<param-value>UTF-8</param-value>
  	</init-param>
  </filter>
  <filter-mapping>
  	<filter-name>encodingFilter</filter-name>
  	<!-- 
  		方法1: <url-pattern>*.do</url-pattern>
  		<url-pattern>/*</url-pattern>
  	 -->
  	<!-- 指定某个servlet去过滤 -->
  	<servlet-name>springmvc</servlet-name>
  </filter-mapping>
  
  <!-- 配置前端控制器 -->
  <servlet>
  	<servlet-name>springmvc</servlet-name>
  	<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
  	
  	<!-- 加载springmvc.xml -->
  	<init-param>
  		<param-name>contextConfigLocation</param-name>
  		<param-value>classpath:springmvc.xml</param-value>
  	</init-param>
  	
  	<!-- 启动加载 -->
  	<load-on-startup>1</load-on-startup>
  	
  </servlet>
  
  <servlet-mapping>
  	<servlet-name>springmvc</servlet-name>
  	<!-- <url-pattern>*.do</url-pattern> -->
  	<url-pattern>/</url-pattern>
  </servlet-mapping>
  
</web-app>

index.jsp

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<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Insert title here</title>
</head>
<body>
	<p>
		<button id="addUserButton" onclick="addUser()">addUser</button>
		<button id="updateUserButton" onclick="updateUser()">updateUser</button>
		<button id="deleteUserByIdButton" onclick="deleteUserById()">deleteUserById</button>
		<button id="getUserByIdButton" onclick="getUserById()">getUserById</button>
		<button id="getAllUserButton" onclick="getAllUser()">getAllUser</button>
	</p>
</body>
<script type="text/javascript" src="js/jquery-3.1.1.min.js"></script>
<script type="text/javascript">
	
	function addUser() {
		$.ajax({
			url: "userModule/user",
			type: "post",
			data: {
		        "id": 1,
		        "name": "user1",
		        "age": 10,
		        "address": "address1",
		        "time": "2022-05-01"
		    },
			success: function(message) {
				console.log(message);
			}
		});
	}
	
	function updateUser() {
		$.ajax({
			url: "userModule/user",
			type: "put",
			data: {
		        "id": 1,
		        "name": "user1",
		        "age": 10,
		        "address": "address1",
		        "time": "2022-05-01"
		    },
			success: function(message) {
				console.log(message);
			}
		});
	}
	
	function deleteUserById() {
		$.ajax({
			url: "userModule/user/1",
			type: "delete",
			success: function(message) {
				console.log(message);
			}
		});
	}
	
	function getUserById() {
		$.ajax({
			url: "userModule/user/2",
			type: "get",
			success: function(message) {
				console.log(message);
			}
		});
	}
	
	function getAllUser() {
		$.ajax({
			url: "userModule/user",
			type: "patch",
			success: function(data) {
				console.log(data);
			}
		});
	}
</script>

</html>

打开浏览器，访问: http://localhost:8080/11_springmvc_restful/index.jsp