整合SpringBoot + MybatisPlus 搭建JAVA多模块项目基本骨架

SpringBoot
  SpringBoot可以让你简单、快速、方便的搭建一个Spring Web项目。
Mybatis-Plus
  MP是国内人员开发的一个Mybatis的增强工具，在Mybatis的基础上只做增强不做改变，为简化开发、提高效率而生。支持通用的 CRUD、代码生成器与条件构造器

项目搭建

1. 初始化SpringBoot项目
      首先创建一个maven项目，删除src文件夹
     创建springboot 项目模块
   
   分别添加core、common、practice模块。删除多余文件，配置父子模块间依赖关系及相应jar。如下图
   
     主POM

<?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>

    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.2.4.RELEASE</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>

    <groupId>com.yc</groupId>
    <artifactId>DeepLearning</artifactId>
    <version>1.0.0</version>

    <modules>
        <module>dl-common</module>
        <module>dl-core</module>
        <module>dl-practice</module>
    </modules>
    
    <packaging>pom</packaging>
    
    <properties>
        <java.version>1.8</java.version>
        <!-- jar -->
        <druid-spring-boot-starter.version>1.1.10</druid-spring-boot-starter.version>
        <mybatis-plus.version>3.1.0</mybatis-plus.version>
        <lombok.version>1.16.4</lombok.version>
        <swagger.version>2.7.0</swagger.version>
        <bootstrap.version>4.0.0</bootstrap.version>
        <common-codec.version>1.9</common-codec.version>
        <commons-lang3.version>3.9</commons-lang3.version>
        <itextpdf.version>5.5.13.1</itextpdf.version>
        <zxing-core.version>3.4.0</zxing-core.version>
        <fastjson.version>1.2.58</fastjson.version>
        <json-lib.version>1.0.2</json-lib.version>
        <freemarker.version>2.3.29</freemarker.version>
        <jwt.version>3.7.0</jwt.version>
        <hutool.version>5.0.0</hutool.version>
        <shiro.version>1.4.0</shiro.version>
    </properties>

        <dependencies>
            <!-- druid -->
            <dependency>
                <groupId>com.alibaba</groupId>
                <artifactId>druid-spring-boot-starter</artifactId>
                <version>${druid-spring-boot-starter.version}</version>
            </dependency>

            <!--lombok jar -->
            <dependency>
                <groupId>org.projectlombok</groupId>
                <artifactId>lombok</artifactId>
                <version>${lombok.version}</version>
            </dependency>
            
        </dependencies>
</project>

  common POM

<?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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <parent>
        <groupId>com.yc</groupId>
        <artifactId>DeepLearning</artifactId>
        <version>1.0.0</version>
    </parent>

    <artifactId>dl-common</artifactId>
    <version>1.0.0</version>
    <packaging>war</packaging>

    <dependencies>
        <dependency>
            <groupId>com.yc</groupId>
            <artifactId>dl-core</artifactId>
            <version>1.0.0</version>
        </dependency>

        <!--AOP场景启动器:支持面向切面的编程，包括spring-aop和AspectJ -->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-aop</artifactId>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
        </dependency>

    </dependencies>

</project>

   core POM

<?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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <parent>
        <groupId>com.yc</groupId>
        <artifactId>DeepLearning</artifactId>
        <version>1.0.0</version>
    </parent>

    <artifactId>dl-core</artifactId>
    <version>1.0.0</version>
    <packaging>war</packaging>

    <dependencies>
        <!--mysql-->
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <scope>runtime</scope>
        </dependency>

        <!--mybatis-Plus-->
        <dependency>
            <groupId>com.baomidou</groupId>
            <artifactId>mybatis-plus-boot-starter</artifactId>
            <version>${mybatis-plus.version}</version>
        </dependency>
        <dependency>
            <groupId>com.baomidou</groupId>
            <artifactId>mybatis-plus-generator</artifactId>
            <version>${mybatis-plus.version}</version>
        </dependency>

    </dependencies>

</project>

  practice POM

<?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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>

    <parent>
        <groupId>com.yc</groupId>
        <artifactId>DeepLearning</artifactId>
        <version>1.0.0</version>
    </parent>

    <artifactId>dl-practice</artifactId>
    <version>1.0.0</version>
    <packaging>war</packaging>

    <dependencies>
        <dependency>
            <groupId>com.yc</groupId>
            <artifactId>dl-core</artifactId>
            <version>1.0.0</version>
        </dependency>
        <dependency>
            <groupId>com.yc</groupId>
            <artifactId>dl-common</artifactId>
            <version>1.0.0</version>
        </dependency>

        <!-- Web 场景 -->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>

        <!--thymeleaf-->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-thymeleaf</artifactId>
        </dependency>

        <!--Swagger 相关：核心包:扫描程序,生成文档数据;swagger生成可视化界面-->
        <dependency>
            <groupId>io.springfox</groupId>
            <artifactId>springfox-swagger2</artifactId>
            <version>${swagger.version}</version>
        </dependency>
        <dependency>
            <groupId>io.springfox</groupId>
            <artifactId>springfox-swagger-ui</artifactId>
            <version>${swagger.version}</version>
        </dependency>
    </dependencies>
</project>

2. 配置application.yml及启动类

server:
  port: 8081
  tomcat:
    uri-encoding: UTF-8
  servlet:
    context-path: /deepLearning
spring:
  #=====DataBase 相关===========
  datasource:
    url: jdbc:mysql://127.0.0.1:3306/deeplearning?useUnicode=true&characterEncoding=UTF-8&serverTimezone=GMT%2B8
    username: root
    password: xieyc@mysql
    driver-class-name: com.mysql.cj.jdbc.Driver
    type: com.alibaba.druid.pool.DruidDataSource
    # 配置监控统计拦截的filters，去掉后监控界面sql无法统计，'wall'用于防火墙，此处是filter修改的地方
    druid:
      filters: stat,wall,config
      use-global-data-source-stat: true
      connectionProperties: druid.stat.mergeSql=true;druid.stat.slowSqlMillis=500
      max-active: 100
      initial-size: 1
      max-wait: 60000
      min-idle: 1
      time-between-eviction-runs-millis: 60000
      min-evictable-idle-time-millis: 300000
      validation-query: select 'x'
      test-while-idle: true
      test-on-borrow: false
      test-on-return: false
      pool-prepared-statements: true
      max-open-prepared-statements: 50
      max-pool-prepared-statement-per-connection-size: 20
      
#======静态资源相关 ===========
  resource:
      static-locations: classpath:/static/,classpath:/public/

#=====Mybatis plus 相关=====
mybatis-plus:
  mapper-locations: classpath*:/mapper/**/*Mapper.xml
  type-aliases-package: com.lh.modules.*.entity,com.lh.system.entity
  configuration:
    map-underscore-to-camel-case: true  # 驼峰
  global-config:
    banner: false #关闭MP 3.0 自带的banner

package com.yc.practice;

import com.yc.common.utils.LocalHostUtil;
import lombok.extern.slf4j.Slf4j;
import org.mybatis.spring.annotation.MapperScan;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.context.ConfigurableApplicationContext;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.core.env.Environment;

/**
 * 功能描述：
 *
 * 
版权所有：
 * 未经本人许可，不得以任何方式复制或使用本程序任何部分
 *
 * @Company: 紫色年华
 * @Author:  xieyc
 * @Datetime: 2019-05-30
 */
@SpringBootApplication
@ComponentScan({"com.yc"})
@MapperScan({"com.yc.core.*.mapper"})
@EnableTransactionManagement(proxyTargetClass = true)
@Slf4j
public class DlPracticeApplication {

    public static void main(String[] args) {
        ConfigurableApplicationContext application = SpringApplication.run(DlPracticeApplication.class, args);
        Environment env = application.getEnvironment();
        String ip = LocalHostUtil.getIpAddress();
        String port = env.getProperty("server.port");
        String path = env.getProperty("server.servlet.context-path");
        log.info("\n----------------------------------------------------------\n\t" +
                "Application DeepLearning is running! Access URLs:\n\t" +
                "Local: \t\thttp://localhost:" + port + path + "/\n\t" +
                "External: \thttp://" + ip + ":" + port + path + "/\n\t" +
                "swagger-ui: http://" + ip + ":" + port + path + "/swagger-ui.html\n\t" +
                "----------------------------------------------------------");
    }

}

附:Mybatis generator 配置文件

package com.yc.core;

import com.baomidou.mybatisplus.annotation.DbType;
import com.baomidou.mybatisplus.annotation.IdType;
import com.baomidou.mybatisplus.generator.AutoGenerator;
import com.baomidou.mybatisplus.generator.InjectionConfig;
import com.baomidou.mybatisplus.generator.config.*;
import com.baomidou.mybatisplus.generator.config.po.TableInfo;
import com.baomidou.mybatisplus.generator.config.rules.NamingStrategy;
import com.baomidou.mybatisplus.generator.engine.FreemarkerTemplateEngine;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

/**
 * 功能描述：MyBatis-plus 代码生成器
 *
 * 
版权所有：
 * 未经本人许可，不得以任何方式复制或使用本程序任何部分
 *
 * @Company: 紫色年华
 * @Author:  xieyc
 * @Datetime: 2019-06-28 17:17
 * @Version: 1.0.0
 */
public class MyBatisGenerator {

    /**
     * 生成文件所在项目路径
     */
    private static final String BASE_PATH = "D:\\workSpace\\DeepLearning\\dl-core";
    /**
     * 基本包名
     */
    private static final String BASE_PACKAGE = "com.yc.core";
    /**
     * 文件夹名
     */
    private static final String MODEL_NAME = "mall";
    private static final String AUTHOR = "xieyc";
    /**
     * 要生成的表名
     */
    private static final String[] TABLES = {"mall_brand"};

    /**
     * 数据库配置四要素
     */
    private static final String DRIVER_NAME = "com.mysql.cj.jdbc.Driver";
    private static final String URL =
            "jdbc:mysql://127.0.0.1:3306/deeplearning?useUnicode=true&characterEncoding=UTF-8&serverTimezone=GMT%2B8";
    private static final String USERNAME = "root";
    private static final String PASSWORD = "xieyc@mysql";

    public static void main(String[] args) {
        //代码生成器
        AutoGenerator gen = new AutoGenerator();
        // 全局配置
        gen.setGlobalConfig(new GlobalConfig()
                // 主键自增
                .setIdType(IdType.UUID)
                // 是否覆盖文件
                .setFileOverride(true)
                // 输出目录
                .setOutputDir( BASE_PATH + "/src/main/java")
                // 作者
                .setAuthor(AUTHOR)
                // 生成后打开文件夹
                .setOpen(false)
                // 开启 activeRecord 模式
                // .setActiveRecord(true)
                // XML 二级缓存
                .setEnableCache(false)
                // XML 生成基本的resultMap
                .setBaseResultMap(false)
                // XML 生成基本的sql片段
                .setBaseColumnList(false)
                // 自定义文件命名,%s会自动填充表实体属性！默认IXXXService
                .setMapperName("%sMapper")
                .setXmlName("%sMapper")
                .setServiceName("%sService")
                .setServiceImplName("%sServiceImpl")
                .setControllerName("%sController")
        );

         // 数据库配置
        gen.setDataSource(new DataSourceConfig()
                .setUrl(URL)
                .setDriverName(DRIVER_NAME)
                .setUsername(USERNAME)
                .setPassword(PASSWORD)
                .setDbType(DbType.MYSQL)
        );

        // 包配置
        gen.setPackageInfo(new PackageConfig()
                .setModuleName(MODEL_NAME)
                // 自定义包路径
                .setParent(BASE_PACKAGE)
                // 这里是控制器包名，默认 web
                .setController("controller")
                .setEntity("entity")
                .setMapper("mapper")
                .setService("service")
                .setServiceImpl("service.impl")
                .setXml("resource")
        );

        // 注入自定义配置 可以在 VM 中使用 cfg.abc 设置的值
        InjectionConfig abc = new InjectionConfig() {
            @Override
            public void initMap() {
                Map<String, Object> map = new HashMap<>();
                map.put("abc", this.getConfig().getGlobalConfig().getAuthor() + "-mp");
                this.setMap(map);
            }
        };
        //自定义文件输出位置（非必须）
        List<FileOutConfig> fileOutList = new ArrayList<>();
        fileOutList.add(new FileOutConfig("/templates/mapper.xml.ftl") {
            @Override
            public String outputFile(TableInfo tableInfo) {
                return BASE_PATH + "/src/main/resources/mapper/"+ MODEL_NAME +"/" + tableInfo.getEntityName() + "Mapper.xml";
            }
        });
        abc.setFileOutConfigList(fileOutList);
        gen.setCfg(abc);
        // 指定模板引擎 默认是VelocityTemplateEngine ，需要引入相关引擎依赖
        gen.setTemplateEngine(new FreemarkerTemplateEngine());
        // 模板配置 关闭默认 xml 生成，调整生成 至 根目录
        gen.setTemplate(new TemplateConfig()
                .setXml(null)
                .setService("/mybatis/service.java")
                .setServiceImpl("/mybatis/serviceImpl.java")
                .setController("/mybatis/controller.java")
                .setMapper("/mybatis/mapper.java")
                .setEntity("/mybatis/model.java")
        );

        // 策略配置
        gen.setStrategy(new StrategyConfig()
                        // 表名生成策略
                .setNaming(NamingStrategy.underline_to_camel)
                .setColumnNaming(NamingStrategy.underline_to_camel)
                .setEntityLombokModel(true)
                .setRestControllerStyle(true)
                        // 需要生成的表
                .setInclude(TABLES)
                        // 自定义实体，公共字段
                .setSuperEntityColumns("id")
                .setControllerMappingHyphenStyle(true)
        );
        // 执行生成
        gen.execute();
    }
}