Spring+Druid+SpringMVC的搭建（附Demo）

最近公司事情比较少，便想利用这段空闲时间做一个自己的博客。

前端界面已经搞好，感谢杨姐的模板，自己稍微把模板没有的模块给补全了。

今天便开始自己的SSM框架搭建，数据库链接是采用数据库连接池。先上个项目结构图：

这个是基于Maven搭建的ssm框架，我把service层删除了，去掉了dao层接口，业务在需要与数据库交互的时候便直接调用dao层的方法。

1、创建maven项目，maven没有接触过的请自行百度 maven项目在eclisp如何创建。

2、配置 pom.xml 加载jar包

<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/maven-v4_0_0.xsd">
  <modelVersion>4.0.0</modelVersion>
  <groupId>com.cwj</groupId>
  <artifactId>MyBlog</artifactId>
  <packaging>war</packaging>
  <version>0.0.1-SNAPSHOT</version>
  <name>MyBlog Maven Webapp</name>
  <url>http://maven.apache.org</url>
    <properties>  
        <!-- spring版本号 -->  
        <spring.version>4.0.2.RELEASE</spring.version>  
        <!-- mybatis版本号 -->  
        <mybatis.version>3.2.6</mybatis.version>  
        <!-- log4j日志文件管理包版本 -->  
        <slf4j.version>1.7.7</slf4j.version>  
        <log4j.version>1.2.17</log4j.version>  
    </properties> 
    
    <dependencies>
        <!-- DBCP -->
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>druid</artifactId>
            <version>1.0.13</version>
        </dependency>
    
        <!-- junit -->
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>3.8.1</version>
             <!-- 表示开发的时候引入，发布的时候不会加载此包 -->  
            <scope>test</scope>
        </dependency>
        
         <!-- spring核心包 -->  
        <dependency>  
            <groupId>org.springframework</groupId>  
            <artifactId>spring-core</artifactId>  
            <version>${spring.version}</version>  
        </dependency>  
  
        <dependency>  
            <groupId>org.springframework</groupId>  
            <artifactId>spring-web</artifactId>  
            <version>${spring.version}</version>  
        </dependency>  
        <dependency>  
            <groupId>org.springframework</groupId>  
            <artifactId>spring-oxm</artifactId>  
            <version>${spring.version}</version>  
        </dependency>  
        <dependency>  
            <groupId>org.springframework</groupId>  
            <artifactId>spring-tx</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-webmvc</artifactId>  
            <version>${spring.version}</version>  
        </dependency>  
        <dependency>  
            <groupId>org.springframework</groupId>  
            <artifactId>spring-aop</artifactId>  
            <version>${spring.version}</version>  
        </dependency>  
  
        <dependency>  
            <groupId>org.springframework</groupId>  
            <artifactId>spring-context-support</artifactId>  
            <version>${spring.version}</version>  
        </dependency>  
  
        <dependency>  
            <groupId>org.springframework</groupId>  
            <artifactId>spring-test</artifactId>  
            <version>${spring.version}</version>  
        </dependency>  
        <!-- mybatis核心包 -->  
        <dependency>  
            <groupId>org.mybatis</groupId>  
            <artifactId>mybatis</artifactId>  
            <version>${mybatis.version}</version>  
        </dependency>  
         <!-- mybatis/spring包 -->  
        <dependency>  
            <groupId>org.mybatis</groupId>  
            <artifactId>mybatis-spring</artifactId>  
            <version>1.2.2</version>  
        </dependency>  
        
         <!-- 导入java ee jar 包 -->  
        <dependency>  
            <groupId>javax</groupId>  
            <artifactId>javaee-api</artifactId>  
            <version>7.0</version>  
        </dependency>  
        
         <!-- 导入Mysql数据库链接jar包 -->  
        <dependency>  
            <groupId>mysql</groupId>  
            <artifactId>mysql-connector-java</artifactId>  
            <version>5.1.36</version>  
        </dependency>  
        <!-- 导入dbcp的jar包，用来在applicationContext.xml中配置数据库 -->  
        <dependency>  
            <groupId>commons-dbcp</groupId>  
            <artifactId>commons-dbcp</artifactId>  
            <version>1.2.2</version>  
        </dependency>  
        
        <!-- JSTL标签类 -->  
        <dependency>  
            <groupId>jstl</groupId>  
            <artifactId>jstl</artifactId>  
            <version>1.2</version>  
        </dependency>  
        <!-- 日志文件管理包 -->  
        <!-- log start -->  
        <dependency>  
            <groupId>log4j</groupId>  
            <artifactId>log4j</artifactId>  
            <version>${log4j.version}</version>  
        </dependency>  
          
          
        <!-- 格式化对象，方便输出日志 -->  
        <dependency>  
            <groupId>com.alibaba</groupId>  
            <artifactId>fastjson</artifactId>  
            <version>1.1.41</version>  
        </dependency>  
  
  
        <dependency>  
            <groupId>org.slf4j</groupId>  
            <artifactId>slf4j-api</artifactId>  
            <version>${slf4j.version}</version>  
        </dependency>  
  
        <dependency>  
            <groupId>org.slf4j</groupId>  
            <artifactId>slf4j-log4j12</artifactId>  
            <version>${slf4j.version}</version>  
        </dependency>  
        <!-- log end -->  
        <!-- 映入JSON -->  
        <dependency>  
            <groupId>org.codehaus.jackson</groupId>  
            <artifactId>jackson-mapper-asl</artifactId>  
            <version>1.9.13</version>  
        </dependency>  
        <!-- 上传组件包 -->  
        <dependency>  
            <groupId>commons-fileupload</groupId>  
            <artifactId>commons-fileupload</artifactId>  
            <version>1.3.1</version>  
        </dependency>  
        <dependency>  
            <groupId>commons-io</groupId>  
            <artifactId>commons-io</artifactId>  
            <version>2.4</version>  
        </dependency>  
        <dependency>  
            <groupId>commons-codec</groupId>  
            <artifactId>commons-codec</artifactId>  
            <version>1.9</version>  
        </dependency>  

    </dependencies>

  <build>
    <finalName>MyBlog</finalName>
  </build>
</project>

3、在src/main/java跟目录下建好需要的包

4、在src/main/resource下创建spring-mvc.xml

 1 <?xml version="1.0" encoding="UTF-8"?>  
 2 <beans xmlns="http://www.springframework.org/schema/beans"  
 3     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:p="http://www.springframework.org/schema/p"  
 4     xmlns:context="http://www.springframework.org/schema/context"  
 5     xmlns:mvc="http://www.springframework.org/schema/mvc"  
 6     xsi:schemaLocation="http://www.springframework.org/schema/beans    
 7                         http://www.springframework.org/schema/beans/spring-beans-3.1.xsd    
 8                         http://www.springframework.org/schema/context    
 9                         http://www.springframework.org/schema/context/spring-context-3.1.xsd    
10                         http://www.springframework.org/schema/mvc    
11                         http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd">  
12     <!-- 自动扫描该包，使SpringMVC认为包下用了@controller注解的类是控制器 -->  
13     <context:component-scan base-package="com.cwj.controller" />  
14     <!-- 扩充了注解驱动，可以将请求参数绑定到控制器参数 -->
15     <mvc:annotation-driven/>
16     
17     <!-- 静态文件处理  -->
18     <!-- location:表示/assets/目录下（即服务器根目录）的static包下的所有文件 -->
19     <!-- mapping:表示以/static开头的所有请求路径，如/static/a 或者/static/a/b -->
20     <mvc:resources location="/assets/" mapping="/public/**/" />
21     
22     <!--避免IE执行AJAX时，返回JSON出现下载文件 -->  
23     <bean id="mappingJacksonHttpMessageConverter"  
24         class="org.springframework.http.converter.json.MappingJacksonHttpMessageConverter">  
25         <property name="supportedMediaTypes">  
26             <list>  
27                 <value>text/html;charset=UTF-8</value>  
28             </list>  
29         </property>  
30     </bean>  
31     <!-- 启动SpringMVC的注解功能，完成请求和注解POJO的映射 -->  
32     <bean  
33         class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter">  
34         <property name="messageConverters">  
35             <list>  
36                 <ref bean="mappingJacksonHttpMessageConverter" /> <!-- JSON转换器 -->  
37             </list>  
38         </property>  
39     </bean>  
40       
41     <!-- 配置文件上传，如果没有使用文件上传可以不用配置，当然如果不配，那么配置文件中也不必引入上传组件包 -->  
42     <bean id="multipartResolver"    
43         class="org.springframework.web.multipart.commons.CommonsMultipartResolver">    
44         <!-- 默认编码 -->  
45         <property name="defaultEncoding" value="utf-8" />    
46         <!-- 文件大小最大值 -->  
47         <property name="maxUploadSize" value="10485760000" />    
48         <!-- 内存中的最大值 -->  
49         <property name="maxInMemorySize" value="40960" />    
50         <!-- 启用是为了推迟文件解析，以便捕获文件大小异常 -->
51         <property name="resolveLazily" value="true"/>
52     </bean>   
53     
54     <!-- 配置ViewResolver 。可用多个ViewResolver 。使用order属性排序。   InternalResourceViewResolver 放在最后-->
55     <bean class="org.springframework.web.servlet.view.ContentNegotiatingViewResolver">
56     <property name="order" value="1"></property>
57         <property name="mediaTypes">
58             <map>
59                 <!-- 告诉视图解析器，返回的类型为json格式 -->
60                 <entry key="json" value="application/json" />
61                 <entry key="xml" value="application/xml" />
62                 <entry key="htm" value="text/htm" />
63             </map>
64         </property>
65         <property name="defaultViews">
66             <list>
67                 <!-- ModelAndView里的数据变成JSON -->
68                 <bean class="org.springframework.web.servlet.view.json.MappingJacksonJsonView" />
69             </list>
70         </property>
71         <property name="ignoreAcceptHeader" value="true"></property>
72     </bean>
73     
74    <!-- 定义跳转的文件的前后缀 ，视图模式配置-->  
75     <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">  
76         <!-- 这里的配置我的理解是自动给后面action的方法return的字符串加上前缀和后缀，变成一个 可用的url地址 -->  
77         <property name="prefix" value="/WEB-INF/view/" />  
78         <property name="suffix" value=".jsp" />  
79     </bean>  
80 </beans>

5、配置好web.xml就可以测试刚刚配置的Spring+SpringMVC有没有成功。等会儿，全部配置完，记得把注释给取消掉。

 1 <?xml version="1.0" encoding="UTF-8"?>  
 2 <web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"  
 3     xmlns="http://java.sun.com/xml/ns/javaee"  
 4     xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd"  
 5     version="3.0">  
 6     <display-name>Archetype Created Web Application</display-name>  
 7     <!-- Spring和mybatis的配置文件 -->  
 8 <!--     <context-param>  
 9         <param-name>contextConfigLocation</param-name>  
10         <param-value>classpath:spring-mybatis.xml</param-value>  
11     </context-param>    -->
12     <!-- 编码过滤器 -->  
13     <filter>  
14         <filter-name>encodingFilter</filter-name>  
15         <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>  
16         <async-supported>true</async-supported>  
17         <init-param>  
18             <param-name>encoding</param-name>  
19             <param-value>UTF-8</param-value>  
20         </init-param>  
21     </filter>  
22     <filter-mapping>  
23         <filter-name>encodingFilter</filter-name>  
24         <url-pattern>/*</url-pattern>  
25     </filter-mapping>  
26     <!-- Spring监听器 -->  
27 <!--      <listener>  
28         <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>  
29     </listener>   --> 
30     <!-- 防止Spring内存溢出监听器 -->  
31 <!--      <listener>  
32         <listener-class>org.springframework.web.util.IntrospectorCleanupListener</listener-class>  
33     </listener>   -->
34   
35     <!-- Spring MVC servlet -->  
36     <servlet>  
37         <servlet-name>SpringMVC</servlet-name>  
38         <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>  
39         <init-param>  
40             <param-name>contextConfigLocation</param-name>  
41             <param-value>classpath:spring-mvc.xml</param-value>  
42         </init-param>  
43         <load-on-startup>1</load-on-startup>  
44         <async-supported>true</async-supported>  
45     </servlet>  
46     <servlet-mapping>  
47         <servlet-name>SpringMVC</servlet-name>  
48         <!-- 此处可以可以配置成*.do，对应struts的后缀习惯 -->  
49         <url-pattern>/</url-pattern>  
50     </servlet-mapping>  
51     <welcome-file-list>  
52         <welcome-file>/index.jsp</welcome-file>  
53     </welcome-file-list>  
54   
55 </web-app>

6、在com.cwj.controller包下创建一个StudentController.java控制器

 1 package com.cwj.controller;
 2 
 3 import org.springframework.stereotype.Controller;
 4 import org.springframework.web.bind.annotation.RequestMapping;
 5 
 6 @Controller
 7 public class StudentController {
 8     
 9     @RequestMapping(value="/test")
10     public String test(){
11 
12         return "com/test";
13     }
14 }

7、根据配置的路径，创建相应的test.jsp文件，之后在tomcat中运行。

8、接下来就是配置spring-mybatis.首先创建application.properties 配置数据库连接信息

 1 jdbc.driver=com.mysql.jdbc.Driver
 2 jdbc.url=jdbc\:mysql\://rm-wz92wfb0l40ny7b5jo.mysql.rds.aliyuncs.com\:3306/test
 3 jdbc.username=root
 4 jdbc.password=CHen123456
 5 
 6 #定义初始连接数  
 7 jdbc.initialSize=0
 8 #定义最大连接数  
 9 jdbc.maxActive=20
10 #定义最大空闲  
11 jdbc.maxIdle=20
12 #定义最小空闲  
13 jdbc.minIdle=1
14 #定义最长等待时间  
15 jdbc.maxWait=60000
16 
17 dbcp.initialSize=15
18 dbcp.maxActive=5000
19 dbcp.maxIdle=0
20 dbcp.maxWait=900000
21 dbcp.defaultAutoCommit=true
22 dbcp.removeAbandoned=true
23 dbcp.removeAbandonedTimeout=30
24 dbcp.whenExhaustedAction=1
25 dbcp.validationQuery=select 1
26 dbcp.testOnBorrow=fasle
27 dbcp.testOnReturn=false

9、配置log4j.properties信息

log4j.rootLogger=INFO,Console,File  
log4j.appender.Console=org.apache.log4j.ConsoleAppender  
log4j.appender.Console.Target=System.out  
log4j.appender.Console.layout = org.apache.log4j.PatternLayout  
log4j.appender.Console.layout.ConversionPattern=[%c] - %m%n  
  
log4j.appender.File = org.apache.log4j.RollingFileAppender  
log4j.appender.File.File = logs/ssm.log  
log4j.appender.File.MaxFileSize = 10MB  
log4j.appender.File.Threshold = ALL  
log4j.appender.File.layout = org.apache.log4j.PatternLayout  
log4j.appender.File.layout.ConversionPattern =[%p] [%d{yyyy-MM-dd HH\:mm\:ss}][%c]%m%n

10、配置spring-mybatis.xml

<?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-3.1.xsd    
                        http://www.springframework.org/schema/context    
                        http://www.springframework.org/schema/context/spring-context-3.1.xsd    
                        http://www.springframework.org/schema/mvc    
                        http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd">  
    <!-- 自动扫描 -->  
    <context:component-scan base-package="com.cwj" />  
    
    <!-- 引入配置文件 -->  
    <bean id="propertyConfigurer"  
        class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">  
        <property name="location" value="classpath:application.properties" />  
    </bean>  
  
          <!-- 数据源配置,使用应用内的DBCP数据库连接池     -->
    <bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource"  init-method="init" destroy-method="close">
        <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="initialSize" value="${dbcp.initialSize}" />
        <property name="maxActive" value="${dbcp.maxActive}" />
        <property name="maxIdle" value="${dbcp.maxIdle}" />
        <property name="maxWait" value="${dbcp.maxWait}" />
        <property name="defaultAutoCommit" value="${dbcp.defaultAutoCommit}" />
        <property name="removeAbandoned" value="${dbcp.removeAbandoned}" />
        <property name="removeAbandonedTimeout" value="${dbcp.removeAbandonedTimeout}" />
        <property name="logAbandoned" value="true"></property>
        
        <!-- 配置间隔多久才进行一次检测，检测需要关闭的空闲连接，单位是毫秒 -->
        <property name="timeBetweenEvictionRunsMillis" value="60000" />
        <!-- 配置一个连接在池中最小生存的时间，单位是毫秒 -->
        <property name="minEvictableIdleTimeMillis" value="300000" />
        <property name="validationQuery" value="${dbcp.validationQuery}" />
        <property name="testWhileIdle" value="true" />
        <property name="testOnBorrow" value="false" />
        <property name="testOnReturn" value="false" />
        
        <!-- 打开PSCache，并且指定每个连接上PSCache的大小 如果用Oracle，则把poolPreparedStatements配置为true，mysql可以配置为false。分库分表较多的数据库，建议配置为false。-->
        <property name="poolPreparedStatements" value="false" />
        <property name="maxPoolPreparedStatementPerConnectionSize" value="20" />
        <!-- 配置监控统计拦截的filters -->
        <property name="filters" value="stat" /> 
    </bean>
  
    <!-- spring jdbc  NamedParameterJdbcTemplate -->
    <bean id="namedjdbctemp" class="org.springframework.jdbc.core.namedparam.NamedParameterJdbcTemplate">
        <constructor-arg ref="dataSource"/>
    </bean>
  
    <!-- spring和MyBatis完美整合，不需要mybatis的配置映射文件 -->  
    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">  
        <property name="dataSource" ref="dataSource" />  
        <!-- 自动扫描mapping.xml文件 -->  
       <!--  <property name="mapperLocations" value="classpath:com/cwj/mapping/*.xml"></property>   -->
    </bean>  
  
    <!-- DAO接口所在包名，Spring会自动查找其下的类 -->  
     <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">  
        <property name="basePackage" value="com.cwj.dao" />  
        <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"></property>  
    </bean>   
  
    <!-- (事务管理)transaction manager, use JtaTransactionManager for global tx -->  
    <bean id="transactionManager"  
        class="org.springframework.jdbc.datasource.DataSourceTransactionManager">  
        <property name="dataSource" ref="dataSource" />  
    </bean> 
  
</beans>

11、最后测试配置是否成功。

数据库表是这样的

DROP TABLE IF EXISTS `student`;
CREATE TABLE `student` (
  `id` varchar(32) NOT NULL DEFAULT '',
  `name` varchar(255) DEFAULT NULL,
  `age` smallint(6) DEFAULT NULL,
  `sex` smallint(6) DEFAULT NULL,
  PRIMARY KEY (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;

12、创建实体类Student.java

package com.cwj.pojo;

import javax.persistence.Entity;

@Entity
public class Student {
    private String id;
    private String name;
    private Integer sex;
    private Integer age;
    public String getId() {
        return id;
    }
    public void setId(String id) {
        this.id = id;
    }
    public String getName() {
        return name;
    }
    public void setName(String name) {
        this.name = name;
    }
    public Integer getSex() {
        return sex;
    }
    public void setSex(Integer sex) {
        this.sex = sex;
    }
    public Integer getAge() {
        return age;
    }
    public void setAge(Integer age) {
        this.age = age;
    }
    @Override
    public String toString() {
        return "Student [id=" + id + ", name=" + name + ", sex=" + sex + ", age=" + age + "]";
    }
    
    
}

13、创建StudentDao

package com.cwj.dao;

import java.util.HashMap;
import java.util.Map;

import javax.annotation.Resource;

import org.springframework.jdbc.core.BeanPropertyRowMapper;
import org.springframework.jdbc.core.namedparam.NamedParameterJdbcTemplate;
import org.springframework.stereotype.Repository;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

import com.cwj.pojo.Student;

@Repository
public class  StudentDao {
    
    
    
    @Resource
    private NamedParameterJdbcTemplate namedjdbctemp;
    

    @Transactional
    public Student queryStuById(String id){
        String sql = "select * from student where id =:id";
        Map<String, Object> map = new HashMap<String, Object>();
        map.put("id", id);
        return namedjdbctemp.queryForObject(sql, map,new BeanPropertyRowMapper<Student>(Student.class));
    }
    
}

14修改StudentController

package com.cwj.controller;

import javax.servlet.http.HttpServletRequest;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;

import com.cwj.dao.StudentDao;
import com.cwj.pojo.Student;

@Controller
public class StudentController {
    
    private static Logger log=LoggerFactory.getLogger(StudentController.class);
    
    @Autowired
    private StudentDao studentService;
    
    @RequestMapping(value="/test")
    public String test(HttpServletRequest request){
        Student student = studentService.queryStuById("2");
        request.setAttribute("stu", student);
        log.info("stu:"+student.toString());
        return "com/test";
    }
}

15、修改test.jsp

 1 package com.cwj.controller;
 2 
 3 import javax.servlet.http.HttpServletRequest;
 4 
 5 import org.slf4j.Logger;
 6 import org.slf4j.LoggerFactory;
 7 import org.springframework.beans.factory.annotation.Autowired;
 8 import org.springframework.stereotype.Controller;
 9 import org.springframework.web.bind.annotation.RequestMapping;
10 
11 import com.cwj.dao.StudentDao;
12 import com.cwj.pojo.Student;
13 
14 @Controller
15 public class StudentController {
16     
17     private static Logger log=LoggerFactory.getLogger(StudentController.class);
18     
19     @Autowired
20     private StudentDao studentService;
21     
22     @RequestMapping(value="/test")
23     public String test(HttpServletRequest request){
24         Student student = studentService.queryStuById("2");
25         request.setAttribute("stu", student);
26         log.info("stu:"+student.toString());
27         return "com/test";
28     }
29 }

16、记得取消web.xml的注释，给张项目结构图便开始测试因为文件夹被我改了名字。所以在github下载的文件访问地址是 http://127.0.0.1:8080/MyBlog/test

静态图片也加载成功。

有问题欢迎留言咨询。

贴上github链接：

https://github.com/BeautifulMeet/gitDemo

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原文地址：https://www.cnblogs.com/boychen/p/7277580.html