SSM框架的整合：
1.使用技術
Spring + SpringMVC + Mybatis
Maven
數據庫：mysql
2.使用工具
3.整合步驟
3.1我們使用idea分別搭建一個用於管理jar包的maven項目和我們需要整合SSM框架的maven項目。具體的項目結構如圖所示：
3.2編寫父工程和子工程下的pom.xml文件:
3.2.1我們導入父工程pom.xml中管理的相關的jar包依賴：
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.itcast</groupId>
<artifactId>Itcast-parent</artifactId>
<version>1.0-SNAPSHOT</version>
<packaging>pom</packaging>
<!-- 集中定義依賴版本號 -->
<properties>
<junit.version>4.12</junit.version>
<lucene.version>4.10.2</lucene.version>
<c3p0.version>0.9.1.2</c3p0.version>
<dom4j.version>1.6.1</dom4j.version>
<dbutils.version>1.7</dbutils.version>
<spring.version>4.3.13.RELEASE</spring.version>
<slf4j.version>1.6.4</slf4j.version>
<mybatis.version>3.2.8</mybatis.version>
<mybatis.spring.version>1.2.2</mybatis.spring.version>
<mybatis.paginator.version>1.2.15</mybatis.paginator.version>
<mysql.version>5.1.32</mysql.version>
<jackson.version>2.9.0</jackson.version>
<druid.version>1.0.9</druid.version>
<httpclient.version>4.3.5</httpclient.version>
<jstl.version>1.2</jstl.version>
<servlet-api.version>2.5</servlet-api.version>
<jsp-api.version>2.0</jsp-api.version>
<joda-time.version>2.5</joda-time.version>
<commons-lang3.version>3.3.2</commons-lang3.version>
<commons-io.version>1.3.2</commons-io.version>
</properties>
<dependencyManagement>
<dependencies>
<!-- 單元測試 -->
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>${junit.version}</version>
<!--<scope>test</scope>-->
</dependency>
<!-- Spring -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-beans</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jdbc</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-aspects</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-test</artifactId>
<version>${spring.version}</version>
</dependency>
<!-- Mybatis -->
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis</artifactId>
<!-- <scope>runtime</scope>-->
<version>${mybatis.version}</version>
</dependency>
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis-spring</artifactId>
<version>${mybatis.spring.version}</version>
</dependency>
<dependency>
<groupId>com.github.miemiedev</groupId>
<artifactId>mybatis-paginator</artifactId>
<version>${mybatis.paginator.version}</version>
</dependency>
<!-- MySql -->
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<scope>runtime</scope>
<version>${mysql.version}</version>
</dependency>
<!-- 日誌 -->
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-log4j12</artifactId>
<version>${slf4j.version}</version>
</dependency>
<!-- Jackson Json處理工具包 -->
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-databind</artifactId>
<version>${jackson.version}</version>
</dependency>
<!-- 連接池 -->
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>druid</artifactId>
<version>${druid.version}</version>
</dependency>
<!-- httpclient -->
<dependency>
<groupId>org.apache.httpcomponents</groupId>
<artifactId>httpclient</artifactId>
<version>${httpclient.version}</version>
</dependency>
<!-- JSP相關 -->
<dependency>
<groupId>jstl</groupId>
<artifactId>jstl</artifactId>
<version>${jstl.version}</version>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>servlet-api</artifactId>
<version>${servlet-api.version}</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>jsp-api</artifactId>
<version>${jsp-api.version}</version>
<scope>provided</scope>
</dependency>
<!-- 時間操作組件 -->
<dependency>
<groupId>joda-time</groupId>
<artifactId>joda-time</artifactId>
<version>${joda-time.version}</version>
</dependency>
<!-- Apache工具組件 -->
<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-lang3</artifactId>
<version>${commons-lang3.version}</version>
</dependency>
<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-io</artifactId>
<version>${commons-io.version}</version>
</dependency>
<!-- dom4j -->
<dependency>
<groupId>dom4j</groupId>
<artifactId>dom4j</artifactId>
<version>${dom4j.version}</version>
</dependency>
<!-- dbutils包 -->
<dependency>
<groupId>commons-dbutils</groupId>
<artifactId>commons-dbutils</artifactId>
<version>${dbutils.version}</version>
</dependency>
<!-- c3p0包 -->
<dependency>
<groupId>c3p0</groupId>
<artifactId>c3p0</artifactId>
<version>${c3p0.version}</version>
</dependency>
<!-- lucene核心庫 -->
<dependency>
<groupId>org.apache.lucene</groupId>
<artifactId>lucene-core</artifactId>
<version>${lucene.version}</version>
</dependency>
<!-- Lucene的查詢解析器 -->
<dependency>
<groupId>org.apache.lucene</groupId>
<artifactId>lucene-queryparser</artifactId>
<version>${lucene.version}</version>
</dependency>
<!-- lucene的默認分詞器庫 -->
<dependency>
<groupId>org.apache.lucene</groupId>
<artifactId>lucene-analyzers-common</artifactId>
<version>${lucene.version}</version>
</dependency>
<!-- lucene的高亮顯示 -->
<dependency>
<groupId>org.apache.lucene</groupId>
<artifactId>lucene-highlighter</artifactId>
<version>4.10.2</version>
</dependency>
</dependencies>
</dependencyManagement>
<build>
<plugins>
<!-- java編譯插件 -->
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.2</version>
<configuration>
<source>1.7</source>
<target>1.7</target>
</configuration>
</plugin>
</plugins>
<pluginManagement>
<plugins>
<!-- 配置Tomcat插件 -->
<plugin>
<groupId>org.apache.tomcat.maven</groupId>
<artifactId>tomcat7-maven-plugin</artifactId>
<version>2.2</version>
</plugin>
</plugins>
</pluginManagement>
</build>
</project>
3.2.2導入子工程pom.xml中依賴的相關jar包依賴：
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<parent>
<artifactId>Itcast-parent</artifactId>
<groupId>com.itcast</groupId>
<version>1.0-SNAPSHOT</version>
<relativePath>../Itcast-parent/pom.xml</relativePath>
</parent>
<modelVersion>4.0.0</modelVersion>
<artifactId>My_ssm</artifactId>
<packaging>war</packaging>
<dependencies>
<!-- 單元測試 -->
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<!--<scope>test</scope>-->
</dependency>
<!--spring整合單元測試 -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-test</artifactId>
<version>4.3.13.RELEASE</version>
</dependency>
<!-- Spring -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jdbc</artifactId>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-aspects</artifactId>
</dependency>
<!-- Mybatis -->
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis</artifactId>
</dependency>
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis-spring</artifactId>
</dependency>
<!-- MySql -->
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-log4j12</artifactId>
</dependency>
<!-- Jackson Json處理工具包 -->
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-databind</artifactId>
</dependency>
<!-- 連接池 -->
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>druid</artifactId>
</dependency>
<!-- JSP相關 -->
<dependency>
<groupId>jstl</groupId>
<artifactId>jstl</artifactId>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>servlet-api</artifactId>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>jsp-api</artifactId>
<scope>provided</scope>
</dependency>
</dependencies>
<build>
<plugins>
<!-- 配置Tomcat插件 -->
<plugin>
<groupId>org.apache.tomcat.maven</groupId>
<artifactId>tomcat7-maven-plugin</artifactId>
<configuration>
<port>8080</port>
<path>/</path>
<!--設置get請求的亂碼-->
<uriEncoding>UTF-8</uriEncoding>
</configuration>
</plugin>
</plugins>
<!--解決映射的資源文件不拷貝的問題-->
<resources>
<resource>
<directory>src/main/java</directory>
<includes>
<include>**/*.properties</include>
<include>**/*.xml</include>
</includes>
<filtering>false</filtering>
</resource>
<resource>
<directory>src/main/resources</directory>
<includes>
<include>**/*.properties</include>
<include>**/*.xml</include>
</includes>
<filtering>false</filtering>
</resource>
</resources>
</build>
</project>
3.3編寫resource目錄下具體的配置文件，具體的配置文件目錄如下圖所示：
3.3.1編寫propertites文件夾下jdbc.properties和log4j.properties配置的文件：
jdbc.properties用於配置具體的數據庫的連接的信息：
jdbc.driver=com.mysql.jdbc.Driver
jdbc.url=jdbc:mysql://localhost:3306/mybatis1?characterEncoding=utf-8
jdbc.username=root
jdbc.password=1234
log4j.properties用於打印日誌：
# Global logging configuration
log4j.rootLogger=DEBUG, stdout
# 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
3.3.2編寫mybatis文件夾下sqlMapperconfig.xml配置的文件：
<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE configuration PUBLIC "-//mybatis.org//DTD Config 3.0//EN"
"http://mybatis.org/dtd/mybatis-3-config.dtd">
<configuration>
<!--開啓駝峯命名法-->
<settings>
<setting name="mapUnderscoreToCamelCase" value="true"/>
</settings>
</configuration>
3.3.3編寫spring文件夾下applicationContext.xml配置的文件：
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:p="http://www.springframework.org/schema/p"
xmlns:aop="http://www.springframework.org/schema/aop"
xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-4.0.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-4.0.xsd
http://www.springframework.org/schema/aop
http://www.springframework.org/schema/aop/spring-aop-4.0.xsd
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx-4.0.xsd
http://www.springframework.org/schema/util
http://www.springframework.org/schema/util/spring-util-4.0.xsd">
<!--掃描@Service註解-->
<context:component-scan base-package="com.itheima.Myssm.service"/>
<!--加載數據源數據-->
<context:property-placeholder location="classpath:properties/jdbc.properties"/>
<!-- 配置 數據源 -->
<bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource">
<property name="driverClassName" value="${jdbc.driver}"/>
<property name="url" value="${jdbc.url}" />
<property name="username" value="${jdbc.username}"/>
<property name="password" value="${jdbc.password}"/>
<property name="maxActive" value="10" />
<property name="minIdle" value="5" />
</bean>
<!-- 配置SqlSessionFactory -->
<bean class="org.mybatis.spring.SqlSessionFactoryBean">
<!-- 設置數據源 -->
<property name="dataSource" ref="dataSource"/>
<!-- 設置MyBatis核心配置文件 -->
<property name="configLocation" value="classpath:mybatis/sqlMapperconfig.xml"/>
<!-- 當mybatis的xml文件和mapper接口不在相同包下時，需要用mapperLocations屬性指定xml文件的路徑。
*是個通配符，代表所有的文件，**代表所有目錄下 用此配置來進行配置文件與mapper的映射 -->
<property name="mapperLocations" value="classpath:mapper/**/*.xml"/>
<!--爲實體的類配置別名-->
<property name="typeAliasesPackage" value="com.itheima.Myssm.bean"/>
</bean>
<!-- 配置Mapper動態的掃描 ：可以一次性掃描多個mapper接口 -->
<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
<!-- 設置Mapper掃描包 -->
<property name="basePackage" value="com.itheima.Myssm.mapper"/>
</bean>
<!--配置一個事務管理器-->
<bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<property name="dataSource" ref="dataSource"/>
</bean>
<!--開啓註解管理事務-->
<tx:annotation-driven transaction-manager="transactionManager"/>
</beans>
3.3.4編寫springmvc文件夾下springmvcContext.xml配置的文件：
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:p="http://www.springframework.org/schema/p"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.0.xsd
http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd">
<!--配置包的掃面器-->
<context:component-scan base-package="com.itheima.Myssm.controller"/>
<!-- 配置註解驅動，替代推薦使用的映射器以及適配器，json轉換器 -->
<mvc:annotation-driven />
<!-- 配置視圖解析器去除我們controller層返回路徑的前綴和後綴 -->
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<!-- 前綴 -->
<property name="prefix" value="/WEB-INF/jsp/" />
<!-- 後綴 -->
<property name="suffix" value=".jsp" />
</bean>
<!--釋放靜態資源-->
<mvc:default-servlet-handler/>
</beans>
3.4 配置web.xml
<?xml version="1.0" encoding="UTF-8"?>
<web-app 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_2_5.xsd"
version="2.5">
<!-- 配置spring -->
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:spring/applicationContext.xml</param-value>
</context-param>
<!-- 配置監聽器加載spring -->
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<!-- 配置過濾器，解決post的亂碼問題 -->
<filter>
<filter-name>encoding</filter-name>
<filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
<init-param>
<param-name>encoding</param-name>
<param-value>UTF-8</param-value>
</init-param>
</filter>
<filter-mapping>
<filter-name>encoding</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<!-- 配置SpringMVC -->
<servlet>
<servlet-name>boot-crm</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:springmvc/springmvcContext.xml</param-value>
</init-param>
<!-- 配置springmvc什麼時候啓動，參數必須爲整數 -->
<!-- 如果爲0或者大於0，則springMVC隨着容器啓動而啓動 -->
<!-- 如果小於0，則在第一次請求進來的時候啓動 -->
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>boot-crm</servlet-name>
<!-- 配置了"/"則所有的請求都進入springMVC中去
包括所有的靜態資源也全部攔截(css,js,fonts等等全部攔截)
需要在springmvc中釋放靜態資源
<mvc:default-servlet-handler/>
配置了"*.action"則所有的以.action結尾的請求進入springMvc中去
-->
<url-pattern>/</url-pattern>
</servlet-mapping>
</web-app>
4.測試My_ssm整合項目，以添加用戶爲例：
4.1首先我們在resource目錄下的mapper文件夾中添加一個UserMapper.xml文件：
UserMapper.xml
<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE mapper
PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
"http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="com.itheima.Myssm.mapper.UserMapper">
<insert id="addUser">
INSERT INTO tb_user (
user_name ,
password ,
name ,
age ,
sex ,
birthday ,
created ,
updated
)
VALUES
(
#{userName},
#{password},
#{name},
#{age},
#{sex},
#{birthday},
now(),
now()
);
</insert>
</mapper>
4.2然後我們在src目錄下創建具體的測試文件，具體的目錄結構如下圖：
bean目錄下的user：
package com.itheima.Myssm.bean;
import com.fasterxml.jackson.annotation.JsonIgnore;
import org.springframework.format.annotation.DateTimeFormat;
import java.io.Serializable;
import java.util.Date;
public class User implements Serializable {
private Long id;
// 用戶名
private String userName;
// 密碼
private String password;
// 姓名
private String name;
// 年齡
private Integer age;
// 性別，1男性，2女性
private Integer sex;
// 出生日期
private Date birthday;
// 創建時間
private Date created;
// 更新時間
private Date updated;
public Long getId() {
return id;
}
public void setId(Long id) {
this.id = id;
}
public String getUserName() {
return userName;
}
public void setUserName(String userName) {
this.userName = userName;
}
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}
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 Integer getSex() {
return sex;
}
public void setSex(Integer sex) {
this.sex = sex;
}
public Date getBirthday() {
return birthday;
}
public void setBirthday(Date birthday) {
this.birthday = birthday;
}
public Date getCreated() {
return created;
}
public void setCreated(Date created) {
this.created = created;
}
public Date getUpdated() {
return updated;
}
public void setUpdated(Date updated) {
this.updated = updated;
}
@Override
public String toString() {
return "User{" +
"id=" + id +
", userName='" + userName + '\'' +
", password='" + password + '\'' +
", name='" + name + '\'' +
", age=" + age +
", sex=" + sex +
", birthday=" + birthday +
", created=" + created +
", updated=" + updated +
'}';
}
}
mapper目錄下的UserMapper：
package com.itheima.Myssm.mapper;
import com.itheima.Myssm.bean.User;
import org.apache.ibatis.annotations.Param;
import java.util.List;
public interface UserMapper {
//添加用戶
public int addUser(User user1);
}
service目錄下的UserService：
package com.itheima.Myssm.service;
import com.itheima.Myssm.bean.User;
import java.util.List;
public interface UserService {
//添加用戶
int addUser(User user);
}
service目錄下的UserServiceImpl：
package com.itheima.Myssm.service;
import com.itheima.Myssm.bean.User;
import com.itheima.Myssm.mapper.UserMapper;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;
import java.util.List;
@Service
@Transactional
public class UserServiceImpl implements UserService {
@Autowired
private UserMapper userMapper;
@Override
public int addUser(User user) {
return userMapper.addUser(user);
}
}
ServiceTest目錄下的JUnItTest ：
package com.itheima.Myssm.ServiceTest;
import com.itheima.Myssm.bean.User;
import com.itheima.Myssm.service.UserService;
import org.junit.Test;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
import java.util.Date;
public class JUnItTest {
@Test
public void testAddUsers(){
ApplicationContext ac = new ClassPathXmlApplicationContext("spring/applicationContext.xml");
UserService userService = (UserService) ac.getBean("userServiceImpl");
User user= new User();
user.setName("admin");
user.setPassword("123456");
user.setUserName("admin");
user.setAge(18);
user.setSex(1);
user.setBirthday(new Date());
userService.addUser(user);
System.out.println("用戶添加成功！");
}
}
點擊運行testAddUsers測試，看到如下結果表示SSM框架整合成功！
附加sql腳本如下：
CREATE TABLE `tb_user` (
`id` bigint(20) NOT NULL AUTO_INCREMENT,
`user_name` varchar(100) DEFAULT NULL COMMENT '用戶名',
`password` varchar(100) DEFAULT NULL COMMENT '密碼',
`name` varchar(100) DEFAULT NULL COMMENT '姓名',
`age` int(10) DEFAULT NULL COMMENT '年齡',
`sex` tinyint(1) DEFAULT NULL COMMENT '性別，1男性，2女性',
`birthday` date DEFAULT NULL COMMENT '出生日期',
`created` datetime DEFAULT NULL COMMENT '創建時間',
`updated` datetime DEFAULT NULL COMMENT '更新時間',
PRIMARY KEY (`id`),
UNIQUE KEY `username` (`user_name`)
) ENGINE=InnoDB AUTO_INCREMENT=47 DEFAULT CHARSET=utf8;
完整的整合源碼下載地址：https://download.csdn.net/download/weixin_42696130/10547164