交友项目【后端环境搭建】

目录

1：环境搭建

1.1：MYSQL数据库

1.1.1：导入相应的sql

1.2：Linux中的docker-compose方法集中部署

1.2.1：介绍

1.3：IDEA设置

1.3.1：基本要求

1.3.2：设置项目编码格式

1.3.3：设置Maven仓库

1.4：Maven模块分析

1.4.1：工程主体架构介绍

1.4.2：工程架构搭建

1.4.3：模块依赖分析

1.5：模块依赖

1.5.1：tanhua-parent父项目

1.5.2：tanhua-autoconfig(自动装配)

1.5.3：tanhua-model（实体类）

1.5.4：tanhua-commons（工具类）

1.5.5：tanhua-dubbo（父dubbo）

1.5.6：tanhua-dubbo-interface(将项目中的进行封装到接口模块中)

1.5.7：tanhua-dubbo-db：提供接口的实现类模块（暴露自己的实现提供给消费）

1.5.8：tanhua-dubbo-mongo:(mongodb数据库)

1.5.9：tanhua-app-server：消费者服务用来调用接口模块，消费提供者模块的实现

1.6：Lombok

1.6.1：配置安装

1.6.2：常用注解

---

1：环境搭建

1.1：MYSQL数据库

数据库表	说明
tb_user	用户表
tb_user_info	用户详情表
tb_settings	用户设置表
tb_question	好友问题表
tb_black_list	黑名单
tb_announcement	公告表

将资料中数据库表导入到MYSQL中

1.1.1：导入相应的sql

（1） 打开Navicat ，点击右键选择新建数据库，名字跟我们要导入的数据库的名字一样，字符集一般选utf-8  

 

（2） 在新建的数据库上右击，选择“运行SQL文件”，在提示框中选择文件所在的路径，编码保持一致选择utf-8  

（3） 提示Successfully 导入成功后，可能在左侧看不到导入的数据库，关闭Navicat，重新打开即可看到  

1.2：Linux中的docker-compose方法集中部署

• 探花交友学习中，除MySQL数据库部署到本地电脑中。其他涉及到的所有组件都已经以docker形式安装到虚拟机中。我们只需要进入虚拟机，使用简单的命令即可。为了方便学习与减少基础服务占用的学习时间，全部使用docker-compose的方式集中式部署。这些文件在linux虚拟机中的/root/docker-file文件夹下

可视化工具的查看图：

 

 虚拟机中的图片：

 

• 每个文件夹中都包含一个docker-compose.yml配置文件，一键启动并部署应用。

#进入组件目录
cd /root/docker-file/base/
#执行docker-compose命令
docker-compose up -d 

 

1.2.1：介绍

base

• 其中包含redis，nacos，yapi，mongo

fastdfs

• 包含fastdfs操作需要的组件

rmq

• 包含RabbitMQ需要所有组件

recommend

• 包含推荐系统需要所有组件

1.3：IDEA设置

1.3.1：基本要求

项目依赖环境（需提前安装好）

• JDK1.8

• Intellij Idea

• maven-3.x以上

• Git

• UTF-8编码格式

1.3.2：设置项目编码格式

1.3.3：设置Maven仓库

• 设置本地仓库，建议使用资料中提供好的仓库

   

1.4：Maven模块分析

1.4.1：工程主体架构介绍

父工程	工程名称	说明
tanhua-parent	tanhua-autoconfig	自动装配的工具类
tanhua-parent	tanhua-model	实体类模块
tanhua-parent	tanhua-dubbo	Dubbo子模块（可以理解为文件夹，管理dubbo模块）
tanhua-parent	tanhua-app-server	与手机端交互的入口模块
tanhua-parent	tanhua-commons	工具类模块
tanhua-dubbo	tanhua-dubbo-interface	Dubbo接口模块
tanhua-dubbo	tanhua-dubbo-db	Dubbo服务模块（数据库部分）
tanhua-dubbo	tanhua-dubbo-mongo	Dubbo服务模块（MongoDB部分）

1.4.2：工程架构搭建

• 整体项目使用Maven架构搭建，采用聚合工程形式管理模块，为了便于调用，dubbo需要拆分为接口模块和服务模块

   

   

1.4.3：模块依赖分析

 

1.5：模块依赖

1.5.1：tanhua-parent父项目

父项目包含其他子模块，管理依赖

<?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.czxy.tanhua</groupId><artifactId>tanhua-parent</artifactId><packaging>pom</packaging><version>1.0-SNAPSHOT</version><modules><module>tanhua-app-server</module><module>tanhua-autoconfig</module><module>tanhua-commons</module><module>tanhua-dubbo</module><module>tanhua-model</module><module>tanhua-dubbo/tanhua-dubbo-db</module><module>tanhua-dubbo/tanhua-dubbo-interface</module><module>tanhua-dubbo/tanhua-dubbo-mongo</module></modules><parent><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-parent</artifactId><version>2.3.9.RELEASE</version></parent><properties><maven.compiler.source>8</maven.compiler.source><maven.compiler.target>8</maven.compiler.target><mysql.version>5.1.47</mysql.version><jackson.version>2.11.0</jackson.version><druid.version>1.0.9</druid.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><mybatis.version>3.5.6</mybatis.version><mybatis.mybatis-plus.version>3.4.1</mybatis.mybatis-plus.version><lombok.version>1.18.8</lombok.version><mongo.version>4.0.5</mongo.version><spring-cloud.version>Hoxton.SR10</spring-cloud.version><spring-cloud-alibaba.version>2.2.5.RELEASE</spring-cloud-alibaba.version></properties><!--通用依赖--><dependencies><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-test</artifactId><scope>test</scope></dependency><dependency><groupId>junit</groupId><artifactId>junit</artifactId><version>4.12</version><scope>test</scope></dependency><dependency><groupId>org.projectlombok</groupId><artifactId>lombok</artifactId></dependency><dependency><groupId>cn.hutool</groupId><artifactId>hutool-all</artifactId><version>5.4.3</version></dependency><dependency><groupId>com.alibaba</groupId><artifactId>fastjson</artifactId><version>1.2.8</version></dependency></dependencies><dependencyManagement><dependencies><dependency><groupId>io.netty</groupId><artifactId>netty-bom</artifactId><version>4.1.59.Final</version><type>pom</type><scope>import</scope></dependency><dependency><groupId>io.projectreactor</groupId><artifactId>reactor-bom</artifactId><version>2020.0.4</version><type>pom</type><scope>import</scope></dependency><dependency><groupId>io.projectreactor.netty</groupId><artifactId>reactor-netty</artifactId><version>0.9.8.RELEASE</version></dependency><dependency><groupId>org.springframework.cloud</groupId><artifactId>spring-cloud-dependencies</artifactId><version>${spring-cloud.version}</version><type>pom</type><scope>import</scope></dependency><dependency><groupId>com.alibaba.cloud</groupId><artifactId>spring-cloud-alibaba-dependencies</artifactId><version>${spring-cloud-alibaba.version}</version><type>pom</type><scope>import</scope></dependency><dependency><groupId>joda-time</groupId><artifactId>joda-time</artifactId><version>${joda-time.version}</version></dependency><!-- mybatis-plus插件依赖 --><dependency><groupId>com.baomidou</groupId><artifactId>mybatis-plus-boot-starter</artifactId><version>${mybatis.mybatis-plus.version}</version></dependency><dependency><groupId>com.baomidou</groupId><artifactId>mybatis-plus</artifactId><version>${mybatis.mybatis-plus.version}</version></dependency><!-- MySql --><dependency><groupId>mysql</groupId><artifactId>mysql-connector-java</artifactId><version>${mysql.version}</version></dependency><dependency><groupId>org.mongodb</groupId><artifactId>mongodb-driver-sync</artifactId><version>${mongodb.version}</version></dependency><dependency><groupId>org.projectlombok</groupId><artifactId>lombok</artifactId><optional>true</optional><version>${lombok.version}</version></dependency><dependency><groupId>org.apache.commons</groupId><artifactId>commons-lang3</artifactId><version>${commons-lang3.version}</version></dependency><!-- Jackson Json处理工具包 --><dependency><groupId>com.fasterxml.jackson.core</groupId><artifactId>jackson-databind</artifactId><version>${jackson.version}</version></dependency><dependency><groupId>com.alibaba</groupId><artifactId>druid</artifactId><version>${druid.version}</version></dependency><dependency><groupId>commons-codec</groupId><artifactId>commons-codec</artifactId><version>1.11</version></dependency></dependencies></dependencyManagement><build><plugins><!-- java编译插件 --><plugin><groupId>org.apache.maven.plugins</groupId><artifactId>maven-compiler-plugin</artifactId><version>3.2</version><configuration><source>1.8</source><target>1.8</target><encoding>UTF-8</encoding></configuration></plugin><!-- 打包可运行的spring boot项目 【需要时，拷贝所需项目】<plugin><groupId>org.springframework.boot</groupId><artifactId>spring-boot-maven-plugin</artifactId><configuration><mainClass>启动类</mainClass></configuration></plugin>--></plugins></build>
</project>

1.5.2：tanhua-autoconfig(自动装配)

Spring自动装配工具类：阿里云发送短信，图片上传，图片人脸识别

<?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>tanhua-parent</artifactId><groupId>com.czxy.tanhua</groupId><version>1.0-SNAPSHOT</version></parent><modelVersion>4.0.0</modelVersion><artifactId>tanhua-autoconfig</artifactId><properties><maven.compiler.source>8</maven.compiler.source><maven.compiler.target>8</maven.compiler.target><project.build.sourceEncoding>UTF-8</project.build.sourceEncoding></properties><dependencies><!--阿里云核心API--><dependency><groupId>com.aliyun</groupId><artifactId>aliyun-java-sdk-core</artifactId><version>4.5.3</version></dependency><dependency><groupId>com.aliyun</groupId><artifactId>dysmsapi20170525</artifactId><version>2.0.1</version></dependency><!--阿里云oss存储API--><dependency><groupId>com.aliyun.oss</groupId><artifactId>aliyun-sdk-oss</artifactId><version>3.10.2</version></dependency><!--阿里云人识别--><dependency><groupId>com.aliyun</groupId><artifactId>facebody20191230</artifactId><version>1.0.10</version></dependency><!--百度人脸识别API--><dependency><groupId>com.baidu.aip</groupId><artifactId>java-sdk</artifactId><version>4.8.0</version></dependency><!--springboot基础起步依赖--><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-web</artifactId></dependency><dependency><groupId>com.easemob.im</groupId><artifactId>im-sdk-core</artifactId><version>0.2.5</version></dependency><dependency><groupId>com.aliyun</groupId><artifactId>aliyun-java-sdk-green</artifactId><version>3.6.1</version></dependency></dependencies>
</project>

1.5.3：tanhua-model（实体类）

实体类模块主要是封装具体的实体类

 

<?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>tanhua-parent</artifactId><groupId>com.czxy.tanhua</groupId><version>1.0-SNAPSHOT</version></parent><modelVersion>4.0.0</modelVersion><artifactId>tanhua-model</artifactId><properties><maven.compiler.source>8</maven.compiler.source><maven.compiler.target>8</maven.compiler.target><project.build.sourceEncoding>UTF-8</project.build.sourceEncoding></properties><dependencies><!--MybatisPlus依赖--><dependency><groupId>com.baomidou</groupId><artifactId>mybatis-plus</artifactId></dependency><!--        代码生成器--><dependency><groupId>com.baomidou</groupId><artifactId>mybatis-plus-generator</artifactId><version>3.4.1</version></dependency><!--        velocity模板引擎--><dependency><groupId>org.apache.velocity</groupId><artifactId>velocity-engine-core</artifactId><version>2.3</version></dependency></dependencies>
</project>

1.5.4：tanhua-commons（工具类）

工具类：目前包含了JwtUtils

<?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>tanhua-parent</artifactId><groupId>com.czxy.tanhua</groupId><version>1.0-SNAPSHOT</version></parent><modelVersion>4.0.0</modelVersion><artifactId>tanhua-commons</artifactId><properties><maven.compiler.source>8</maven.compiler.source><maven.compiler.target>8</maven.compiler.target><project.build.sourceEncoding>UTF-8</project.build.sourceEncoding></properties><dependencies><!--工具包--><dependency><groupId>org.apache.commons</groupId><artifactId>commons-lang3</artifactId></dependency><dependency><groupId>commons-codec</groupId><artifactId>commons-codec</artifactId></dependency><dependency><groupId>joda-time</groupId><artifactId>joda-time</artifactId></dependency><!--jwt依赖--><dependency><groupId>io.jsonwebtoken</groupId><artifactId>jjwt</artifactId><version>0.9.1</version></dependency></dependencies></project>

1.5.5：tanhua-dubbo（父dubbo）

 

dubbo模块属于子模块，在子模块里面还有三个子模块

<?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>tanhua-parent</artifactId><groupId>com.czxy.tanhua</groupId><version>1.0-SNAPSHOT</version></parent><modelVersion>4.0.0</modelVersion><artifactId>tanhua-dubbo</artifactId><properties><maven.compiler.source>8</maven.compiler.source><maven.compiler.target>8</maven.compiler.target><project.build.sourceEncoding>UTF-8</project.build.sourceEncoding></properties><dependencies><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-web</artifactId></dependency><dependency><groupId>org.projectlombok</groupId><artifactId>lombok</artifactId></dependency><dependency><groupId>org.apache.commons</groupId><artifactId>commons-lang3</artifactId></dependency><dependency><groupId>com.fasterxml.jackson.core</groupId><artifactId>jackson-databind</artifactId></dependency><dependency><groupId>commons-codec</groupId><artifactId>commons-codec</artifactId></dependency><dependency><groupId>joda-time</groupId><artifactId>joda-time</artifactId></dependency><!-- Dubbo Spring Cloud Starter --><dependency><groupId>com.alibaba.cloud</groupId><artifactId>spring-cloud-starter-dubbo</artifactId></dependency><!-- Spring Cloud Nacos Service Discovery --><dependency><groupId>com.alibaba.cloud</groupId><artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId></dependency><dependency><groupId>com.czxy.tanhua</groupId><artifactId>tanhua-commons</artifactId><version>1.0-SNAPSHOT</version></dependency><dependency><groupId>com.czxy.tanhua</groupId><artifactId>tanhua-dubbo-interface</artifactId><version>1.0-SNAPSHOT</version></dependency></dependencies>
</project>

1.5.6：tanhua-dubbo-interface(将项目中的进行封装到接口模块中)

将提供者的提供的接口实现方法专门封装到一个接口模块中

<?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>tanhua-parent</artifactId><groupId>com.czxy.tanhua</groupId><version>1.0-SNAPSHOT</version><relativePath>../../pom.xml</relativePath></parent><modelVersion>4.0.0</modelVersion><artifactId>tanhua-dubbo-interface</artifactId><properties><maven.compiler.source>8</maven.compiler.source><maven.compiler.target>8</maven.compiler.target><project.build.sourceEncoding>UTF-8</project.build.sourceEncoding></properties><dependencies><dependency><groupId>com.czxy.tanhua</groupId><artifactId>tanhua-model</artifactId><version>1.0-SNAPSHOT</version></dependency></dependencies>
</project>

1.5.7：tanhua-dubbo-db：提供接口的实现类模块（暴露自己的实现提供给消费）

 提供者模块，暴露自己的接口实现类供消费者调用

<?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>tanhua-parent</artifactId><groupId>com.czxy.tanhua</groupId><version>1.0-SNAPSHOT</version><relativePath>../../pom.xml</relativePath></parent><modelVersion>4.0.0</modelVersion><artifactId>tanhua-dubbo-db</artifactId><properties><maven.compiler.source>8</maven.compiler.source><maven.compiler.target>8</maven.compiler.target><project.build.sourceEncoding>UTF-8</project.build.sourceEncoding></properties><dependencies><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-web</artifactId></dependency><dependency><groupId>com.baomidou</groupId><artifactId>mybatis-plus-boot-starter</artifactId></dependency><dependency><groupId>mysql</groupId><artifactId>mysql-connector-java</artifactId></dependency><dependency><groupId>com.alibaba</groupId><artifactId>druid</artifactId></dependency><dependency><groupId>org.projectlombok</groupId><artifactId>lombok</artifactId></dependency><dependency><groupId>org.apache.commons</groupId><artifactId>commons-lang3</artifactId></dependency><dependency><groupId>com.fasterxml.jackson.core</groupId><artifactId>jackson-databind</artifactId></dependency><dependency><groupId>commons-codec</groupId><artifactId>commons-codec</artifactId></dependency><dependency><groupId>joda-time</groupId><artifactId>joda-time</artifactId></dependency><!-- Dubbo Spring Cloud Starter --><dependency><groupId>com.alibaba.cloud</groupId><artifactId>spring-cloud-starter-dubbo</artifactId></dependency><!-- Spring Cloud Nacos Service Discovery --><dependency><groupId>com.alibaba.cloud</groupId><artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId></dependency><dependency><groupId>com.czxy.tanhua</groupId><artifactId>tanhua-dubbo-interface</artifactId><version>1.0-SNAPSHOT</version></dependency></dependencies>
</project>

1.5.8：tanhua-dubbo-mongo:(mongodb数据库)

<?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>tanhua-parent</artifactId><groupId>com.czxy.tanhua</groupId><version>1.0-SNAPSHOT</version><relativePath>../../pom.xml</relativePath></parent><modelVersion>4.0.0</modelVersion><artifactId>tanhua-dubbo-mongo</artifactId><properties><maven.compiler.source>8</maven.compiler.source><maven.compiler.target>8</maven.compiler.target><project.build.sourceEncoding>UTF-8</project.build.sourceEncoding></properties></project>

1.5.9：tanhua-app-server：消费者服务用来调用接口模块，消费提供者模块的实现

app端请求到这个模块，该模块接收请求，处理请求。

<?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>tanhua-parent</artifactId><groupId>com.czxy.tanhua</groupId><version>1.0-SNAPSHOT</version></parent><modelVersion>4.0.0</modelVersion><artifactId>tanhua-app-server</artifactId><properties><maven.compiler.source>8</maven.compiler.source><maven.compiler.target>8</maven.compiler.target><project.build.sourceEncoding>UTF-8</project.build.sourceEncoding></properties><dependencies><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-web</artifactId></dependency><!--SpringDataRedis依赖--><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-data-redis</artifactId></dependency><!--lombok依赖--><dependency><groupId>org.projectlombok</groupId><artifactId>lombok</artifactId></dependency><!--工具包--><dependency><groupId>org.apache.commons</groupId><artifactId>commons-lang3</artifactId></dependency><dependency><groupId>com.fasterxml.jackson.core</groupId><artifactId>jackson-databind</artifactId></dependency><dependency><groupId>commons-codec</groupId><artifactId>commons-codec</artifactId></dependency><dependency><groupId>joda-time</groupId><artifactId>joda-time</artifactId></dependency><!--jwt依赖--><dependency><groupId>io.jsonwebtoken</groupId><artifactId>jjwt</artifactId><version>0.9.1</version></dependency><!--fastdfs文件存储--><dependency><groupId>com.github.tobato</groupId><artifactId>fastdfs-client</artifactId><version>1.26.7</version><exclusions><exclusion><groupId>ch.qos.logback</groupId><artifactId>logback-classic</artifactId></exclusion></exclusions></dependency><!-- Dubbo Spring Cloud Starter--><dependency><groupId>com.alibaba.cloud</groupId><artifactId>spring-cloud-starter-dubbo</artifactId></dependency><!-- Spring Cloud Nacos Service Discovery--><dependency><groupId>com.alibaba.cloud</groupId><artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId></dependency><!--RabbitMQ--><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-amqp</artifactId></dependency><dependency><groupId>com.czxy.tanhua</groupId><artifactId>tanhua-dubbo-interface</artifactId><version>1.0-SNAPSHOT</version></dependency><dependency><groupId>com.czxy.tanhua</groupId><artifactId>tanhua-commons</artifactId><version>1.0-SNAPSHOT</version></dependency><dependency><groupId>com.czxy.tanhua</groupId><artifactId>tanhua-autoconfig</artifactId><version>1.0-SNAPSHOT</version></dependency><dependency><groupId>junit</groupId><artifactId>junit</artifactId></dependency></dependencies></project>

1.6：Lombok

• lombok 提供了简单的注解的形式来帮助我们简化消除一些必须有但显得很臃肿的 java 代码，尤其是针对pojo。

• 官网：Project Lombok

1.6.1：配置安装

<!--简化代码的工具包-->
<dependency><groupId>org.projectlombok</groupId><artifactId>lombok</artifactId><optional>true</optional>
</dependency>

安装IDEA插件：

如果不安装插件，程序可以正常执行，但是看不到生成的一些代码，如：get set方法。  

1.6.2：常用注解

• @Data：注解在类上；提供类所有属性的 getting 和 setting 方法，此外还提供了equals canEqual hashCode toString 方法

• @Setter：注解在属性上；为属性提供 setting 方法

• @Getter：注解在属性上；为属性提供 getting 方法

• @Slf4j：注解在类上；为类提供一个 属性名为log 的 slf4j日志对象

• @NoArgsConstructor：注解在类上；为类提供一个无参的构造方法

• @AllArgsConstructor：注解在类上；为类提供一个全参的构造方法

• @Builder：使用Builder模式构建对象