1.完成生成代码后的效果图

代码生成后的项目结构图.png

<?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>1.5.9.RELEASE</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>
    <groupId>com.wsy</groupId>
    <artifactId>mybatis_plus_demo</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <packaging>war</packaging>
    <name>mybatis_plus_demo</name>
    <description>Demo project for Spring Boot</description>

    <properties>
        <java.version>1.8</java.version>
        <mybatisplus.version>2.2.0</mybatisplus.version>
        <springboot.version>1.5.9.RELEASE</springboot.version>
        <velocity.version>2.0</velocity.version>
        <swagger2.version>2.6.1</swagger2.version>
    </properties>

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

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-tomcat</artifactId>
            <scope>provided</scope>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
        <!--swagger2-->
        <dependency>
            <groupId>io.springfox</groupId>
            <artifactId>springfox-swagger2</artifactId>
            <version>${swagger2.version}</version>
        </dependency>
        <dependency>
            <groupId>io.springfox</groupId>
            <artifactId>springfox-swagger-ui</artifactId>
            <version>${swagger2.version}</version>
        </dependency>
        <!--引入热部署 devtools-->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-devtools</artifactId>
            <optional>true</optional>
        </dependency>
        <!--引入mybatis-plus-->
        <!--mybatisplus,加入该jar后，就不再需要mybatis-xxx.jar,mybatis-spring-xxx.jar了，它们会以依赖包的形式被自动维护-->
        <dependency>
            <groupId>com.baomidou</groupId>
            <artifactId>mybatis-plus</artifactId>
            <version>${mybatisplus.version}</version>
        </dependency>
        <!--引入mybatis与springboot整合插件 去掉会导致无法注入DruidDataSource-->
        <dependency>
            <groupId>com.baomidou</groupId>
            <artifactId>mybatisplus-spring-boot-starter</artifactId>
            <version>1.0.4</version>
        </dependency>
        <!--MPGenerator 需要-->
        <dependency>
            <groupId>org.apache.velocity</groupId>
            <artifactId>velocity-engine-core</artifactId>
            <version>${velocity.version}</version>
        </dependency>
        <!-- 引入mysql-->
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>5.1.26</version>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-jdbc</artifactId>
            <version>${springboot.version}</version>
        </dependency>
        <!--引入druid-->
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>druid-spring-boot-starter</artifactId>
            <version>1.1.6</version>
        </dependency>
        <!--lombok-->
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <version>1.16.18</version>
        </dependency>
        <!--引入日志框架-->
        <dependency>
            <groupId>ch.qos.logback</groupId>
            <artifactId>logback-classic</artifactId>
        </dependency>

    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
                <configuration>
                    <!--fork :如果没有这个选项。devtool不会起作用-->
                    <fork>true</fork>
                </configuration>
            </plugin>
        </plugins>
    </build>

</project>

3.application-del.yml

server:
  port: 8080
  # 配置项目根路径
  context-path: /demo
spring:
  datasource:
    # 使用阿里的Druid连接池
    type: com.alibaba.druid.pool.DruidDataSource
    driver-class-name: com.mysql.jdbc.Driver
    # 填写你数据库的url、登录名、密码和数据库名
    url: jdbc:mysql://localhost:3306/eth?useSSL=false&characterEncoding=utf8
    username: root
    password: root123456
    druid:
      # 连接池的配置信息
      # 初始化大小，最小，最大
      initial-size: 5
      min-idle: 5
      maxActive: 20
      # 配置获取连接等待超时的时间
      maxWait: 60000
      # 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
      timeBetweenEvictionRunsMillis: 60000
      # 配置一个连接在池中最小生存的时间，单位是毫秒
      minEvictableIdleTimeMillis: 300000
      validationQuery: SELECT 1
      testWhileIdle: true
      testOnBorrow: false
      testOnReturn: false
      # 打开PSCache，并且指定每个连接上PSCache的大小
      poolPreparedStatements: true
      maxPoolPreparedStatementPerConnectionSize: 20
      # 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
      filters: stat,wall,log4j
      # 通过connectProperties属性来打开mergeSql功能；慢SQL记录
      connectionProperties: druid.stat.mergeSql\=true;druid.stat.slowSqlMillis\=5000
      # 配置DruidStatFilter
      web-stat-filter:
        enabled: true
        url-pattern: "/*"
        exclusions: "*.js,*.gif,*.jpg,*.bmp,*.png,*.css,*.ico,/druid/*"
      # 配置DruidStatViewServlet
      stat-view-servlet:
        url-pattern: "/druid/*"
        # IP白名单(没有配置或者为空，则允许所有访问)
        allow: 127.0.0.1,192.168.163.1
        # IP黑名单 (存在共同时，deny优先于allow)
        deny: 192.168.1.73
        #  禁用HTML页面上的“Reset All”功能
        reset-enable: false
        # 登录名
        login-username: admin
        # 登录密码
        login-password: 123456
#devtools热部署
  devtools:
    restart:
      enabled: true
      #设置重启的目录
      additional-paths: src/main/java
      #classpath目录下的WEB-INF文件夹内容修改不重启
      additional-exclude: WEB-INF/**

#mybatisPlus
mybatis-plus:
  mapper-locations: classpath:/mapper/*Mapper.xml
  type-aliases-package: com.wsy.mybatis_plus_demo.entity
  configuration:
    map-underscore-to-camel-case: true
    # 打印sql日志信息
    log-impl: org.apache.ibatis.logging.stdout.StdOutImpl
logging:
  level: com.wsy.mybatis_plus_demo.mapper.debug

4.DataSourceConfig.java

package com.wsy.mybatis_plus_demo.config;

import com.alibaba.druid.pool.DruidDataSource;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.jdbc.datasource.DataSourceTransactionManager;

import javax.sql.DataSource;

@Configuration
public class DataSourceConfig {
    @Bean(name = "datasource")
    @ConfigurationProperties(prefix = "spring.datasource")
    public DataSource dataSource(){
        return new DruidDataSource();
    }

    //配置事务管理
    @Bean(name="transactionManager")
    public DataSourceTransactionManager transactionManager(){
        return new DataSourceTransactionManager(dataSource());
    }

}

5.MyBatisPlusConfig

package com.wsy.mybatis_plus_demo.config;

import com.baomidou.mybatisplus.plugins.PaginationInterceptor;
import org.mybatis.spring.annotation.MapperScan;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

//配置mapper扫描路径
@MapperScan("com.wsy.mybatis_plus_demo.mapper")
@Configuration
public class MyBatisPlusConfig {

    @Bean
    public PaginationInterceptor paginationInterceptor(){
        PaginationInterceptor page =new PaginationInterceptor();
        page.setDialectType("mysql");
        return page;
    }
}

6.项目中的sql信息

表信息.png

7.配置\src\test\java\com\wsy\mybatis_plus_demo\MpGenerator.java

package com.wsy.mybatis_plus_demo;

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

import com.baomidou.mybatisplus.generator.AutoGenerator;
import com.baomidou.mybatisplus.generator.InjectionConfig;
import com.baomidou.mybatisplus.generator.config.*;
import com.baomidou.mybatisplus.generator.config.converts.MySqlTypeConvert;
import com.baomidou.mybatisplus.generator.config.po.TableInfo;
import com.baomidou.mybatisplus.generator.config.rules.DbColumnType;
import com.baomidou.mybatisplus.generator.config.rules.DbType;
import com.baomidou.mybatisplus.generator.config.rules.NamingStrategy;

/**
 * <p>
 * 代码生成器演示
 * </p>
 */
public class MpGenerator {

    final static String  resourcesPath = "E:\\git_repo\\mybatis_plus_demo\\src\\main\\resources";

    /**
     * <p>
     * MySQL 生成演示
     * </p>
     */
    public static void main(String[] args) {
        AutoGenerator mpg = new AutoGenerator();
        // 选择 freemarker 引擎，默认 Veloctiy
        //mpg.setTemplateEngine(new FreemarkerTemplateEngine());

        // 全局配置
        GlobalConfig gc = new GlobalConfig();
        gc.setOutputDir("E:\\git_repo\\mybatis_plus_demo\\src\\main\\java");
        gc.setAuthor("shine");
        gc.setFileOverride(true); //是否覆盖
        gc.setActiveRecord(true);// 不需要ActiveRecord特性的请改为false
        gc.setEnableCache(false);// XML 二级缓存
        gc.setBaseResultMap(true);// XML ResultMap
        gc.setBaseColumnList(true);// XML columList

        // 自定义文件命名，注意 %s 会自动填充表实体属性！
         gc.setMapperName("%sDao");
         gc.setXmlName("%sMapper");
         gc.setServiceName("%sService");
         gc.setServiceImplName("%sServiceImpl");
         gc.setControllerName("%sController");
         mpg.setGlobalConfig(gc);

        // 数据源配置
        DataSourceConfig dsc = new DataSourceConfig();
        dsc.setDbType(DbType.MYSQL);
        dsc.setTypeConvert(new MySqlTypeConvert(){
            // 自定义数据库表字段类型转换【可选】
            @Override
            public DbColumnType processTypeConvert(String fieldType) {
                System.out.println("转换类型：" + fieldType);
                // 注意！！processTypeConvert 存在默认类型转换，如果不是你要的效果请自定义返回、非如下直接返回。
                return super.processTypeConvert(fieldType);
            }
        });
        dsc.setDriverName("com.mysql.jdbc.Driver");
        dsc.setUsername("root");
        dsc.setPassword("root123456");
        dsc.setUrl("jdbc:mysql://127.0.0.1:3306/eth?characterEncoding=utf8");
        mpg.setDataSource(dsc);

        // 策略配置
        StrategyConfig strategy = new StrategyConfig();
        // strategy.setCapitalMode(true);// 全局大写命名 ORACLE 注意
        strategy.setTablePrefix(new String[] { "tb_" });// 此处可以修改为您的表前缀
        strategy.setNaming(NamingStrategy.underline_to_camel);// 表名生成策略
        strategy.setInclude(new String[] { "tb_user" }); // 需要生成的表
        // strategy.setExclude(new String[]{"test"}); // 排除生成的表
        // 自定义实体父类
        // strategy.setSuperEntityClass("com.baomidou.demo.TestEntity");
        // 自定义实体，公共字段
        // strategy.setSuperEntityColumns(new String[] { "test_id", "age" });
        // 自定义 mapper 父类
        // strategy.setSuperMapperClass("com.baomidou.demo.TestMapper");
        // 自定义 service 父类
        // strategy.setSuperServiceClass("com.baomidou.demo.TestService");
        // 自定义 service 实现类父类
        // strategy.setSuperServiceImplClass("com.baomidou.demo.TestServiceImpl");
        // 自定义 controller 父类
        // strategy.setSuperControllerClass("com.baomidou.demo.TestController");
        // 【实体】是否生成字段常量（默认 false）
        // public static final String ID = "test_id";
        // strategy.setEntityColumnConstant(true);
        // 【实体】是否为构建者模型（默认 false）
        // public User setName(String name) {this.name = name; return this;}
        strategy.setEntityBuilderModel(true);
        mpg.setStrategy(strategy);

        // 包配置
        PackageConfig pc = new PackageConfig();
        pc.setParent("com.wsy.mybatis_plus_demo");
        //配置模块名
        // pc.setModuleName()
        pc.setController("controller");
        pc.setEntity("entity");
        pc.setMapper("mapper");
        pc.setService("service");
        pc.setServiceImpl("service.impl");

        mpg.setPackageInfo(pc);

        // 注入自定义配置，可以在 VM 中使用 cfg.abc 【可无】
        InjectionConfig cfg = new InjectionConfig() {
            @Override
            public void initMap() {
                Map<String, Object> map = new HashMap<String, Object>();
                map.put("abc", this.getConfig().getGlobalConfig().getAuthor() + "-mp");
                this.setMap(map);
            }
        };

        // 自定义 xxList.jsp 生成
        List<FileOutConfig> focList = new ArrayList<FileOutConfig>();
/*        focList.add(new FileOutConfig("/template/list.jsp.vm") {
            @Override
            public String outputFile(TableInfo tableInfo) {
                // 自定义输入文件名称
                return "D://my_" + tableInfo.getEntityName() + ".jsp";
            }
        });
        cfg.setFileOutConfigList(focList);
        mpg.setCfg(cfg);*/

        // 调整 xml 生成目录演示
        focList.add(new FileOutConfig("/templates/mapper.xml.vm") {
            @Override
            public String outputFile(TableInfo tableInfo) {
                return resourcesPath +"/mapper/" +tableInfo.getEntityName() + "Mapper.xml";
            }
        });
        cfg.setFileOutConfigList(focList);

        mpg.setCfg(cfg);

        // 关闭默认 xml 生成，调整生成 至 根目录
        TemplateConfig tc = new TemplateConfig();
        tc.setXml(null);
        mpg.setTemplate(tc);

        // 自定义模板配置，可以 copy 源码 mybatis-plus/src/main/resources/templates 下面内容修改，
        // 放置自己项目的 src/main/resources/templates 目录下, 默认名称一下可以不配置，也可以自定义模板名称
        // TemplateConfig tc = new TemplateConfig();
        // tc.setController("...");
        // tc.setEntity("...");
        // tc.setMapper("...");
        // tc.setXml("...");
        // tc.setService("...");
        // tc.setServiceImpl("...");
        // 如上任何一个模块如果设置 空 OR Null 将不生成该模块。
        // mpg.setTemplate(tc);

        // 执行生成
        mpg.execute();

        // 打印注入设置【可无】
        System.err.println(mpg.getCfg().getMap().get("abc"));
    }

}

运行MpGenerator.java后：
entity-->User.java

package com.wsy.mybatis_plus_demo.entity;

import com.baomidou.mybatisplus.enums.IdType;
import java.util.Date;
import com.baomidou.mybatisplus.annotations.TableId;
import com.baomidou.mybatisplus.annotations.TableField;
import com.baomidou.mybatisplus.activerecord.Model;
import com.baomidou.mybatisplus.annotations.TableName;
import java.io.Serializable;

/**
 * <p>
 * 
 * </p>
 *
 * @author shine
 * @since 2019-07-20
 */
@TableName("tb_user")
public class User extends Model<User> {

    private static final long serialVersionUID = 1L;

    @TableId(value = "id", type = IdType.AUTO)
    private Integer id;
    private String name;
    private Integer age;
    private String email;
    @TableField("manager_id")
    private Integer managerId;
    @TableField("create_time")
    private Date createTime;


    public Integer getId() {
        return id;
    }

    public User setId(Integer id) {
        this.id = id;
        return this;
    }

    public String getName() {
        return name;
    }

    public User setName(String name) {
        this.name = name;
        return this;
    }

    public Integer getAge() {
        return age;
    }

    public User setAge(Integer age) {
        this.age = age;
        return this;
    }

    public String getEmail() {
        return email;
    }

    public User setEmail(String email) {
        this.email = email;
        return this;
    }

    public Integer getManagerId() {
        return managerId;
    }

    public User setManagerId(Integer managerId) {
        this.managerId = managerId;
        return this;
    }

    public Date getCreateTime() {
        return createTime;
    }

    public User setCreateTime(Date createTime) {
        this.createTime = createTime;
        return this;
    }

    @Override
    protected Serializable pkVal() {
        return this.id;
    }

    @Override
    public String toString() {
        return "User{" +
        ", id=" + id +
        ", name=" + name +
        ", age=" + age +
        ", email=" + email +
        ", managerId=" + managerId +
        ", createTime=" + createTime +
        "}";
    }
}

mapper-->UserDao.java

package com.wsy.mybatis_plus_demo.mapper;

import com.wsy.mybatis_plus_demo.entity.User;
import com.baomidou.mybatisplus.mapper.BaseMapper;

/**
 * <p>
 *  Mapper 接口
 * </p>
 *
 * @author shine
 * @since 2019-07-20
 */
public interface UserDao extends BaseMapper<User> {

}

resource/mapper--->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.wsy.mybatis_plus_demo.mapper.UserDao">

    <!-- 通用查询映射结果 -->
    <resultMap id="BaseResultMap" type="com.wsy.mybatis_plus_demo.entity.User">
        <id column="id" property="id" />
        <result column="name" property="name" />
        <result column="age" property="age" />
        <result column="email" property="email" />
        <result column="manager_id" property="managerId" />
        <result column="create_time" property="createTime" />
    </resultMap>

    <!-- 通用查询结果列 -->
    <sql id="Base_Column_List">
        id, name, age, email, manager_id AS managerId, create_time AS createTime
    </sql>

</mapper>

service-->UserServiceImpl.java

package com.wsy.mybatis_plus_demo.service.impl;

import com.wsy.mybatis_plus_demo.entity.User;
import com.wsy.mybatis_plus_demo.mapper.UserDao;
import com.wsy.mybatis_plus_demo.service.UserService;
import com.baomidou.mybatisplus.service.impl.ServiceImpl;
import org.springframework.stereotype.Service;

/**
 * <p>
 *  服务实现类
 * </p>
 *
 * @author shine
 * @since 2019-07-20
 */
@Service
public class UserServiceImpl extends ServiceImpl<UserDao, User> implements UserService {

}

controller-->UserController.java

package com.wsy.mybatis_plus_demo.controller;


import org.springframework.web.bind.annotation.RequestMapping;

import org.springframework.stereotype.Controller;

/**
 * <p>
 *  前端控制器
 * </p>
 *
 * @author shine
 * @since 2019-07-20
 */
@Controller
@RequestMapping("/user")
public class UserController {

}

mybatisPlus官网：https://mp.baomidou.com/