1. 项目目录结构：
   
2. pom文件：
   

   <?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.warrior</groupId><artifactId>ETH</artifactId><version>1.0-SNAPSHOT</version><!-- Inherit defaults from Spring Boot --><parent><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-parent</artifactId><version>2.0.0.BUILD-SNAPSHOT</version></parent><!-- Add typical dependencies for a web application --><dependencies><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-web</artifactId></dependency><!-- mybatis的orm插件 --><dependency><groupId>com.baomidou</groupId><artifactId>mybatisplus-spring-boot-starter</artifactId><version>1.0.4</version></dependency><dependency><groupId>com.baomidou</groupId><artifactId>mybatis-plus</artifactId><version>2.0.7</version></dependency><!-- https://mvnrepository.com/artifact/org.apache.velocity/velocity --><dependency><groupId>org.apache.velocity</groupId><artifactId>velocity</artifactId><version>1.7</version></dependency><!-- https://mvnrepository.com/artifact/org.freemarker/freemarker --><dependency><groupId>org.freemarker</groupId><artifactId>freemarker</artifactId><version>2.3.28</version></dependency><!--数据库连接jdbc依赖--><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-jdbc</artifactId></dependency><!--mysql链接依赖--><dependency><groupId>mysql</groupId><artifactId>mysql-connector-java</artifactId></dependency><!--阿里druid数据库链接依赖--><dependency><groupId>com.alibaba</groupId><artifactId>druid</artifactId><version>1.1.9</version></dependency><!-- https://mvnrepository.com/artifact/org.projectlombok/lombok --><dependency><groupId>org.projectlombok</groupId><artifactId>lombok</artifactId><version>0.10.1</version><scope>provided</scope></dependency></dependencies><!-- Package as an executable jar --><build><plugins><plugin><groupId>org.springframework.boot</groupId><artifactId>spring-boot-maven-plugin</artifactId></plugin></plugins></build><!-- Add Spring repositories --><!-- (you don't need this if you are using a .RELEASE version) --><repositories><repository><id>spring-snapshots</id><url>http://repo.spring.io/snapshot</url><snapshots><enabled>true</enabled></snapshots></repository><repository><id>spring-milestones</id><url>http://repo.spring.io/milestone</url></repository></repositories><pluginRepositories><pluginRepository><id>spring-snapshots</id><url>http://repo.spring.io/snapshot</url></pluginRepository><pluginRepository><id>spring-milestones</id><url>http://repo.spring.io/milestone</url></pluginRepository></pluginRepositories>
   </project>

   
   
3. Application
   

   package com.warrior;
   import org.mybatis.spring.annotation.MapperScan;
   import org.springframework.boot.SpringApplication;
   import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
   import org.springframework.boot.autoconfigure.SpringBootApplication;
   import org.springframework.stereotype.Controller;
   import org.springframework.web.bind.annotation.RequestMapping;
   import org.springframework.web.bind.annotation.ResponseBody;@SpringBootApplication
   @MapperScan("com.warrior.mapper")  //配置mapper扫描
   public class Application {public static void main(String[] args) throws Exception {SpringApplication.run(Application.class, args);}
   }

   
   
4. application.properties
   

   #默认启用开发环境配置
   spring.profiles.active=dev
   #启用生产环境配置
   #spring.profiles.active=pro

   application-dev.properties

   server.port=8080
   spring.datasource.type=com.alibaba.druid.pool.DruidDataSource
   spring.datasource.url=jdbc:mysql://localhost:3306/eth
   spring.datasource.username=root
   spring.datasource.password=123456
   spring.datasource.driver-class-name=com.mysql.jdbc.Driver
   spring.datasource.max-idle=10
   spring.datasource.max-wait=10000
   spring.datasource.min-idle=5
   spring.datasource.initial-size=5
   mybatis-plus.mapper-locations=classpath:/mapper/*Mapper.xml
   mybatis-plus.typeAliasesPackage=com.cn.restyle.entity

 

配置文件：
1）.

package com.warrior.config;import javax.sql.DataSource;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 com.alibaba.druid.pool.DruidDataSource;/*** 数据源配置*/
@Configuration
public class DataSourceConfig {@Bean(name="dataSource")@ConfigurationProperties(prefix="spring.datasource")public DataSource dataSource(){return new DruidDataSource();}// 配置事物管理器@Bean(name="transactionManager")public DataSourceTransactionManager transactionManager(){return new DataSourceTransactionManager(dataSource());}}

2）. MybatisPlusConfig.java:

package com.warrior.config;import org.mybatis.spring.annotation.MapperScan;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;import com.baomidou.mybatisplus.plugins.PaginationInterceptor;@Configuration
//扫描dao或者是Mapper接口
@MapperScan("com.warrior.mapper*")
public class MybatisPlusConfig {/*** mybatis-plus 分页插件*/@Beanpublic PaginationInterceptor paginationInterceptor(){PaginationInterceptor page = new PaginationInterceptor();page.setDialectType("mysql");return page;}}

生成代码：
1）.mysql数据库建表

2）.代码生成器MpGenenator.java

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  dirPath = "D://";/*** <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(dirPath);gc.setAuthor("lqh");gc.setFileOverride(true); //是否覆盖gc.setActiveRecord(true);// 不需要ActiveRecord特性的请改为falsegc.setEnableCache(false);// XML 二级缓存gc.setBaseResultMap(true);// XML ResultMapgc.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("MP%sService");// gc.setServiceImplName("%sServiceDiy");// gc.setControllerName("%sAction");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】@Overridepublic 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("123456");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_", "tsys_" });// 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[] { "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");pc.setModuleName("warrior");pc.setController("controler");pc.setEntity("entity");pc.setMapper("mapper");pc.setService("service");pc.setServiceImpl("serviceImpl");pc.setXml("mapperXml");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() {@Overridepublic 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") {@Overridepublic 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") {@Overridepublic String outputFile(TableInfo tableInfo) {return dirPath + 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"));}}

生成的文件如下,只要将对应文件拷到项目对应包即可：

下面把对应类展示出来：
.entity-->Student.java

package com.warrior.entity;import com.baomidou.mybatisplus.enums.IdType;
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 lqh* @since 2018-05-25*/
@TableName("tb_student")
public class Student extends Model<Student> {private static final long serialVersionUID = 1L;@TableId(value="id", type= IdType.AUTO)private Integer id;@TableField("stu_name")private String stuName;@TableField("stu_number")private String stuNumber;private Integer age;public Integer getId() {return id;}public Student setId(Integer id) {this.id = id;return this;}public String getStuName() {return stuName;}public Student setStuName(String stuName) {this.stuName = stuName;return this;}public String getStuNumber() {return stuNumber;}public Student setStuNumber(String stuNumber) {this.stuNumber = stuNumber;return this;}public Integer getAge() {return age;}public Student setAge(Integer age) {this.age = age;return this;}@Overrideprotected Serializable pkVal() {return this.id;}}

.mapper-->StudentMapper.java

package com.warrior.mapper;import com.warrior.entity.Student;
import com.baomidou.mybatisplus.mapper.BaseMapper;/*** <p>*  Mapper 接口* </p>** @author lqh* @since 2018-05-25*/
public interface StudentMapper extends BaseMapper<Student> {}

.mapperXml-->StudentMapper.xml(这个文件要放到src/main/resources/mapper)

 

<?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.warrior.mapper.StudentMapper"><!-- 通用查询映射结果 --><resultMap id="BaseResultMap" type="com.warrior.entity.Student"><id column="id" property="id" /><result column="stu_name" property="stuName" /><result column="stu_number" property="stuNumber" /><result column="age" property="age" /></resultMap><!-- 通用查询结果列 --><sql id="Base_Column_List">id, stu_name AS stuName, stu_number AS stuNumber, age</sql></mapper>

.service-->IStudentService.java

 

package com.warrior.service;import com.warrior.entity.Student;
import com.baomidou.mybatisplus.service.IService;/*** <p>*  服务类* </p>** @author lqh* @since 2018-05-25*/
public interface IStudentService extends IService<Student> {}

.serviceImpl-->StudentServiceImpl.java

 

package com.warrior.serviceImpl;import com.warrior.entity.Student;
import com.warrior.mapper.StudentMapper;
import com.warrior.service.IStudentService;
import com.baomidou.mybatisplus.service.impl.ServiceImpl;
import org.springframework.stereotype.Service;/*** <p>*  服务实现类* </p>** @author lqh* @since 2018-05-25*/
@Service
public class StudentServiceImpl extends ServiceImpl<StudentMapper, Student> implements IStudentService {}

.controler-->StudentController.java

 

package com.warrior.controler;import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;/*** <p>*  前端控制器* </p>** @author lqh* @since 2018-05-25*/
@Controller
@RequestMapping("/warrior/student")
public class StudentController {}

经过以上六步项目已经搭建完成，下面就是写业务代码了，只需要实现controller即可，下面对StudentController.java进行修改：

 

package com.warrior.controler;import com.warrior.entity.Student;
import com.warrior.service.IStudentService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;/*** <p>* 前端控制器* </p>** @author lqh* @since 2018-05-05*/
@Controller
@RequestMapping("/warrior/student")
public class StudentController {@AutowiredIStudentService iStudentService;@RequestMapping("/hello")@ResponseBodypublic String hello() {//insertStudent student = new Student().setStuName("zhangsan").setStuNumber("54").setAge(23);boolean res = iStudentService.insert(student);return res ? "success" : "fail";}
}

 

 

运行项目，直接访问，搞定！！

 

 项目github地址：https://github.com/LinQiHong66/SpringBoot_MybatisPlus.git

mybatisPlus官网：http://mp.baomidou.com/#/

https://gitub.com/LinQiHong66/SpringBoot_MybatisPlus.git

https://github.com/LinQiHong66/SpringBoot_MybatisPlus.git