• Java从入门到实战之(6)SSM框架使用


    对于ssm框架网上有很多,这里只是自己为大家提供的一个ssm整合框架参考分享,这个前提是基于maven的管理工具写的, 

    一 创建Maven项目具体步骤如下:

    二 配置文件

    2.1 配置mybatis-config.xml

    2.2 配置mapper.xml

    2.3 配置jdbc.properties

    2.4 配置applicationContext.xml

    2.5 配置springmvc-servlet.xml

    2.6 配置web.xml

    2.7 配置log4j.properties

    2.8 引入依赖

    三 测试

    3.1 创建java文件

    3.1.1 UserController类

    3.1.2 User实体类

    3.1.3 UserService接口 

    3.1.4 UserServiceImpl实现类

    3.1.5 UserMapper类

    3.2 创建MySql数据库表

    3.3 创建users.jsp文件

    3.4 结果

    ==============================================================================

    1.设计数据库表如下:

     
    /*
     
    Date: 2019-03-11 23:19:10
     
    */
     
     
     
    SET FOREIGN_KEY_CHECKS=0;
     
     
     
    -- ----------------------------
     
    -- Table structure for tb_user
     
    -- ----------------------------
     
    DROP TABLE IF EXISTS `tb_user`;
     
    CREATE TABLE `tb_user` (
     
    `id` bigint(20) NOT NULL AUTO_INCREMENT,
     
    `user_name` varchar(100) DEFAULT NULL COMMENT '用户名',
     
    `password` varchar(100) DEFAULT NULL COMMENT '密码',
     
    `name` varchar(100) DEFAULT NULL COMMENT '姓名',
     
    `age` int(10) DEFAULT NULL COMMENT '年龄',
     
    `sex` tinyint(1) DEFAULT NULL COMMENT '性别,1男性,2女性',
     
    `birthday` date DEFAULT NULL COMMENT '出生日期',
     
    `created` datetime DEFAULT NULL COMMENT '创建时间',
     
    `updated` datetime DEFAULT NULL COMMENT '更新时间',
     
    PRIMARY KEY (`id`),
     
    UNIQUE KEY `username` (`user_name`)
     
    ) ENGINE=InnoDB AUTO_INCREMENT=27 DEFAULT CHARSET=utf8;
     
     
     
    INSERT INTO `tb_user` VALUES (1, 'zhangsan', '123456', '张三', 30, 1, '1984-8-8', '2014-9-19 16:56:04', '2014-9-21 11:24:59');
     
    INSERT INTO `tb_user` VALUES (2, 'lisi', '123456', '李四', 21, 2, '1991-1-1', '2014-9-19 16:56:04', '2014-9-19 16:56:04');
     
    INSERT INTO `tb_user` VALUES (3, 'wangwu', '123456', '王五', 22, 2, '1989-1-1', '2014-9-19 16:56:04', '2014-9-19 16:56:04');
     
    INSERT INTO `tb_user` VALUES (4, 'zhangwei', '123456', '张伟', 20, 1, '1988-9-1', '2014-9-19 16:56:04', '2014-9-19 16:56:04');
     
    INSERT INTO `tb_user` VALUES (5, 'lina', '123456', '李娜', 28, 1, '1985-1-1', '2014-9-19 16:56:04', '2014-9-19 16:56:04');
     
    INSERT INTO `tb_user` VALUES (6, 'lilei', '123456', '李磊', 23, 1, '1988-8-8', '2014-9-20 11:41:15', '2014-9-20 11:41:15');
     
    INSERT INTO `tb_user` VALUES (8, 'xiaofeng', '123456', '萧峰', 30, 1, '2018-6-25', '2018-6-25 18:42:25', '2018-6-25 18:42:25');
     
    INSERT INTO `tb_user` VALUES (12, 'zhendeshuai', '565656', '吴彦祖', 26, 1, '2018-6-26', '2018-6-26 14:55:59', '2018-6-26 15:12:12');
     
    INSERT INTO `tb_user` VALUES (14, 'jiumozhi', '123456', '鸠摩智', 30, 1, '2018-6-26', '2018-6-26 23:53:15', '2018-6-26 23:53:15');
     
    INSERT INTO `tb_user` VALUES (21, 'zhangsan1234', '12345', '杰克', 20, 1, '2000-1-1', '2018-7-7 21:50:26', '2018-7-7 21:50:26');
     
    INSERT INTO `tb_user` VALUES (22, 'zhangsanqwe1', '123455', '张三', 30, 1, '1999-2-25', '2018-7-7 21:51:20', '2018-7-7 21:51:20');
     
    INSERT INTO `tb_user` VALUES (25, 'qianjiu', '123456', '钱九', 30, 1, '1989-1-1', '2018-7-7 21:51:20', '2018-7-7 21:51:20');
     
    INSERT INTO `tb_user` VALUES (26, 'zhaoniu', '123456', '赵牛', 28, 1, '1989-1-1', '2018-7-7 21:51:20', '2018-7-7 21:51:20');

    2 创建一个ssmDemo项目(项目名称可以自定义),如图所示:

    创建好之后如下图所示:

    项目会报错,不用急,为什么呢?因为这是一个不完整的maven项目,缺少web.xml。

    右键点击项目,如下操作,会自动补全web.xml文件

    3,向ssmzh项目中的pom.xml导入spring-springmvc-mybatis整合所需要的依赖,具体依赖如下:

    <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.agu</groupId>
     
    <artifactId>SSMDemo</artifactId>
     
    <version>1.0-SNAPSHOT</version>
     
    <packaging>war</packaging>
     
     
     
     
     
    <dependencies>
     
    <!--spring-->
     
    <dependency>
     
    <groupId>org.springframework</groupId>
     
    <artifactId>spring-context</artifactId>
     
    <version>4.3.13.RELEASE</version>
     
    </dependency>
     
    <!--配置webmvc-->
     
    <dependency>
     
    <groupId>org.springframework</groupId>
     
    <artifactId>spring-webmvc</artifactId>
     
    <version>4.3.13.RELEASE</version>
     
    </dependency>
     
    <!--配置spring jdbc,用来加载DataSourceTransactionManager-->
     
    <dependency>
     
    <groupId>org.springframework</groupId>
     
    <artifactId>spring-jdbc</artifactId>
     
    <version>4.3.13.RELEASE</version>
     
    </dependency>
     
    <!--配置切面的jar包-->
     
    <dependency>
     
    <groupId>org.springframework</groupId>
     
    <artifactId>spring-aspects</artifactId>
     
    <version>4.3.13.RELEASE</version>
     
    </dependency>
     
    <!--mybatis,用来加载SqlSessionFactoryBean和MapperScannerConfigurer-->
     
    <dependency>
     
    <groupId>org.mybatis</groupId>
     
    <artifactId>mybatis</artifactId>
     
    <version>3.2.8</version>
     
    </dependency>
     
    <dependency>
     
    <groupId>org.mybatis</groupId>
     
    <artifactId>mybatis-spring</artifactId>
     
    <version>1.2.2</version>
     
    </dependency>
     
    <!--数据库驱动包-->
     
    <dependency>
     
    <groupId>mysql</groupId>
     
    <artifactId>mysql-connector-java</artifactId>
     
    <version>5.1.32</version>
     
    </dependency>
     
    <!--日志文件-->
     
    <dependency>
     
    <groupId>org.slf4j</groupId>
     
    <artifactId>slf4j-log4j12</artifactId>
     
    <version>1.7.22</version>
     
    </dependency>
     
     
     
    <!--json处理工具包-->
     
    <dependency>
     
    <groupId>com.fasterxml.jackson.core</groupId>
     
    <artifactId>jackson-databind</artifactId>
     
    <version>2.9.0</version>
     
    </dependency>
     
    <!-- 连接池,用来加载DruidDataSource-->
     
    <dependency>
     
    <groupId>com.alibaba</groupId>
     
    <artifactId>druid</artifactId>
     
    <version>1.0.9</version>
     
    </dependency>
     
    <!--javaScript标签库-->
     
    <dependency>
     
    <groupId>jstl</groupId>
     
    <artifactId>jstl</artifactId>
     
    <version>1.2</version>
     
    </dependency>
     
    <dependency>
     
    <groupId>javax.servlet</groupId>
     
    <artifactId>servlet-api</artifactId>
     
    <version>2.5</version>
     
    </dependency>
     
    <dependency>
     
    <groupId>javax.servlet</groupId>
     
    <artifactId>jsp-api</artifactId>
     
    <version>2.0</version>
     
    </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>
     
    </configuration>
     
    </plugin>
     
    </plugins>
     
    </build>
     
    </project>

    4,配置spring.xml(企业常用applicationContext.xml命名表示是spring的配置,我这里命名为spring.xml)

    <?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">
    
    <!--开启spring注解,扫描spring注解所在的包 -->
    <context:component-scan base-package="com.usermanage"/>
    
    <!-- 加载资源文件 -->
    <bean class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
    <!-- 配置资源文件 -->
    <property name="locations">
    <list>
    <value>classpath:jdbc.properties</value>
    </list>
    </property>
    </bean>
    <!--spring 配置连接池,数据源 -->
    <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource"
    destroy-method="close">
    <property name="driverClass" value="${driver}"></property>
    <property name="jdbcUrl" value="${url}"></property>
    <property name="user" value="${user}"></property>
    <property name="password" value="${passwd}"></property>
    </bean>
    
    </beans>

    5,spring-tx(spring事务的配置)如下:

    <?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">
    
    <!-- 定义事务管理器 -->
    <bean id="transactionManager"
    class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
    <property name="dataSource" ref="dataSource" />
    </bean>
    
    
    <!-- 定义事务策略 -->
    <tx:advice id="txAdvice" transaction-manager="transactionManager">
    <tx:attributes>
    <!--所有以query开头的方法都是只读的 -->
    <tx:method name="query*" read-only="true" />
    <tx:method name="get*" read-only="true" />
    <tx:method name="find*" read-only="true" />
    <tx:method name="select*" read-only="true" />
    <!--其他方法使用默认事务策略 -->
    <tx:method name="*" />
    </tx:attributes>
    </tx:advice>
    
    
    <aop:config>
    <!--pointcut元素定义一个切入点,execution中的第一个星号 用以匹配方法的返回类型,
    这里星号表明匹配所有返回类型。 com.abc.dao.*.*(..)表明匹配cn.itcast.mybatis.service包下的所有类的所有 
    方法 -->
    <aop:pointcut id="myPointcut" expression="execution(* com.usermanage.service.*.*(..))" />
    <!--将定义好的事务处理策略应用到上述的切入点 -->
    <aop:advisor advice-ref="txAdvice" pointcut-ref="myPointcut" />
    </aop:config>
     
    
    </beans>

    6,spring-mybatis.xml整合配置如下:

    <?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">
    <!-- spring整合Mybatis的配置,其实主要是mybatis的相应配置 -->
    <!-- 
    sqlSession工厂 mapper的接口配置
    -->
    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
    <property name="dataSource" ref="dataSource" />
    <!-- 加载全局的配置文件 -->
    <property name="configLocation" value="classpath:mybatis/mybatis-config.xml"></property>
    <!-- 配置mapper的扫描,找到所有的mapper.xml映射文件。编码时放开注释,如果放开需要在mapper中写一个mapper也是可以的 -->
    <!-- <property name="mapperLocations" value="classpath:mybatis/mapper/*.xml"></property> -->
    <!-- 配置类型别名 -->
    <property name="typeAliasesPackage" value="com.usermanage.pojo"></property>
    </bean>
    
    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
      <!--配置mapper接口所在路径,扫描路径下的所有的mapper接口  如果配置多个mapper的包,使用逗号进行分割
       -->
       <!--在mybatis当中,dao层与mapper是一样的,只是不同地方叫法不一样,mapper.xml是写sql的,是用来操作数据库的  -->
      <property name="basePackage" value="cn.usermanage.dao,cn.usermanage.mapper" />
    </bean>
    
    </beans>

    7,springmvc.xml配置如下:

    <?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.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.xsd">
    
    
    
    
    <!-- 配置推荐使用注解驱动,会默认的加载上面的两个 HandlerMapping, HandlerAdapter -->
    <mvc:annotation-driven />
    <!-- 开启springmvc注解扫描 -->
    <context:component-scan base-package="cn.usermanage.controller"></context:component-scan>
    <!-- 这个是excelView的加载,原生态ssm不需要,所以这里是可以省略的 -->
    <!-- <bean name="excelView" class="cn.usermanage.view.UserExcelView"></bean> -->
    
    <!-- 视图解析器 -->
    <bean
    class="org.springframework.web.servlet.view.InternalResourceViewResolver">
    <!-- 前缀,这里是请求的路径文件 -->
    <property name="prefix" value="/WEB-INF/views/"></property>
    <!-- 后缀 ,支持.jsp的请求-->
    <property name="suffix" value=".jsp"></property>
    </bean>
    <!-- 以上是原生态的ssm配置 -->
    
    <!-- 配置第二个视图解析器 -->
    <!-- <bean class="org.springframework.web.servlet.view.BeanNameViewResolver">
    <property name="order" value="1"></property>
    </bean> -->
    
    
    <!-- 定义文件上传解析器 -->
    <!-- <bean id="multipartResolver"
    class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
    设定默认编码
    <property name="defaultEncoding" value="UTF-8"></property>
    设定文件上传的最大值5MB,5*1024*1024
    <property name="maxUploadSize" value="5242880"></property>
    </bean> -->
    
    <!-- 解决静态资源被拦截的问题 -->
    <!-- <mvc:default-servlet-handler/> -->
    
    
    </beans>

    8,mybatis的配置如下:

    <?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>
      <settings>
      <!-- 开启驼峰匹配 -->
    <setting name="mapUnderscoreToCamelCase" value="true"/>
      </settings>
      <!-- 分页助手 -->
      <plugins>
        <!-- com.github.pagehelper为PageHelper类所在包名 -->
        <plugin interceptor="com.github.pagehelper.PageHelper">
        <!-- 数据库方言 -->
            <property name="dialect" value="mysql"/>
            <!-- 设置为true时,使用RowBounds分页会进行count查询 会去查询出总数 -->
            <property name="rowBoundsWithCount" value="true"/>
        </plugin>
    </plugins>
    
     </configuration>

    9,Mybatis-generator的配置(这个需要请先安装mybatis-generator插件,然后即可),generatorConfig.xml配置如下:

    <?xml version="1.0" encoding="UTF-8" ?>
    <!DOCTYPE generatorConfiguration PUBLIC "-//mybatis.org//DTD MyBatis Generator Configuration 1.0//EN" "http://mybatis.org/dtd/mybatis-generator-config_1_0.dtd" >
    <generatorConfiguration >
    <!-- 数据库jar包驱动路径必须手动加上去 -->
    <classPathEntry location="D:allworkspace	estspacemybatis-zidongsrcmain
    esourcesmybatis-generatormysql-connector-java-5.1.25.jar" />  
    <!--数据库名称  -->
      <context id="test" >
       <!-- commentGenerator 去除自动生成的注释 -->  
            <commentGenerator>  
                <property name="suppressAllComments" value="true" />  
                <property name="suppressDate" value="true" />  
            </commentGenerator> 
      <!-- 数据库驱动,连接,用户名,密码 -->
        <jdbcConnection driverClass="com.mysql.jdbc.Driver" connectionURL="jdbc:mysql://localhost:3306/test?useUnicode=true&amp;characterEncoding=UTF-8" userId="root" password="123" />
        <!-- pojo实体信息 ,包名称与项目名称-->
        <javaModelGenerator targetPackage="com.usermanage.pojo" targetProject="mybatis-zidong/src/main/java" />
        <!--  mapper信息-->
        <sqlMapGenerator targetPackage="com.usermanage.mapper" targetProject="mybatis-zidong/src/main/java" />
        <!-- dao接口 -->
        <javaClientGenerator targetPackage="com.usermanage.dao" targetProject="mybatis-zidong/src/main/java" type="XMLMAPPER" />
        <!--表名  ,domainObjectName="Teacher"表示与数据库所对应的实体-->
        <table schema="teacher" tableName="teacher" domainObjectName="Teacher"
        enableCountByExample="false" enableUpdateByExample="false" enableDeleteByExample="false"   
                enableSelectByExample="false" selectByExampleQueryId="false"></table>
      </context>
    </generatorConfiguration>

    10.jdbc.properties配置如下:

    driver=com.mysql.jdbc.Driver
    url=jdbc:mysql://localhost:3306/mybatis?useUnicode=true&characterEncoding=utf-8
    user=root
    
    passwd=123456
    
    11.log4j.properties日志配置如下:
    
    log4j.rootLogger=DEBUG,A1
    log4j.logger.org.mybatis=DEBUG
    log4j.appender.A1=org.apache.log4j.ConsoleAppender
    log4j.appender.A1.layout=org.apache.log4j.PatternLayout
    log4j.appender.A1.layout.ConversionPattern=%-d{yyyy-MM-dd HH:mm:ss,SSS} [%t] [%c]-[%p] %m%n
    
    12,配置web.xml,具体如下:
    
    <?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_2_5.xsd" version="2.5">
    <display-name>ssmzh</display-name>
    <!-- 加载spring相关配置 -->
    <context-param>
    <param-name>contextConfigLocation</param-name>
    <!-- 这里使用的是以spring*.xml的通配符方式加载配置的 -->
    <param-value>classpath:spring/spring*.xml</param-value>
    </context-param>
    <!--Spring的ApplicationContext 载入 -->
    <listener>
    <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
    </listener>
    
    
    <!-- 编码过滤器,以UTF8编码 -->
    <filter>
    <filter-name>encodingFilter</filter-name>
    <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
    <init-param>
    <param-name>encoding</param-name>
    <param-value>UTF8</param-value>
    </init-param>
    </filter>
    <filter-mapping>
    <filter-name>encodingFilter</filter-name>
    <url-pattern>/*</url-pattern>
    </filter-mapping>
    
    
    <!-- 配置SpringMVC -->
    <servlet>
    <servlet-name>usermanage</servlet-name>
    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
    <init-param>
    <!-- 指定加载外部的spring-mvc配置文件 -->
    <param-name>contextConfigLocation</param-name>
    <param-value>classpath:spring/springmvc.xml</param-value>
    </init-param>
    <!-- 这个可以不配,可以省略 -->
    <load-on-startup>1</load-on-startup>
    </servlet>
    
    
    <servlet-mapping>
    <servlet-name>usermanage</servlet-name>
    <!-- 拦截所有的请求,除了jsp。  /xx.html js css 会 -->
    <url-pattern>/</url-pattern>
    </servlet-mapping>
    
    <welcome-file-list>
    <welcome-file>index.jsp</welcome-file>
    </welcome-file-list>
    
    </web-app>

    结构图所下:

    启动项目输入:http://www.localhost:8080/SSMDemo/user/list

    运行结果如下图:

    那么到此:一个完整的spring-springmvc-mybatis的整合框架就搭建好了,也许你觉得很复杂,那么这只是一个框架的开始,这个是必须要会的,不论怎么样,一定要多亲自搭建,一次,两次甚至更多,如果连这个基本框架都觉得难,那么你是否也在想应该放弃了。不管哪个行业都有它的难处,要想获得更高必须比别人付出更多。

     

     
    作者:大码王

    -------------------------------------------

    个性签名:独学而无友,则孤陋而寡闻。做一个灵魂有趣的人!

    如果觉得这篇文章对你有小小的帮助的话,记得在右下角点个“推荐”哦,博主在此感谢!

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  • 原文地址:https://www.cnblogs.com/huanghanyu/p/13802552.html
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