1.说明

本文基于SpringBoot集成MyBatis-Plus代码生成器,
把原来生成Entity、Mapper、Mapper XML、Service、Controller等各个模块的代码，
修改为不使用Mapper作为名称，
而使用Dao作为名称，
下面给出代码生成器的代码。

2.代码修改点

// 1.全局配置
GlobalConfig gc = new GlobalConfig();
gc.setMapperName("%sDao");// 3.包配置
PackageConfig pc = new PackageConfig();
pc.setMapper("dao");// 4.自定义配置
focList.add(new FileOutConfig(templatePath) {@Overridepublic String outputFile(TableInfo tableInfo) {// 自定义输出文件名 ， 如果你 Entity 设置了前后缀、此处注意 xml 的名称会跟着发生变化return projectPath + "/src/main/resources/mapper/" + tableInfo.getMapperName() + StringPool.DOT_XML;}
});

3.生成文件

在工程中看到新生成如下文件：

src/main/resources/mapper/RoleDao.xml
src/main/java/com/yuwen/demo/entity/Role.java
src/main/java/com/yuwen/demo/dao/RoleDao.java
src/main/java/com/yuwen/demo/service/RoleService.java
src/main/java/com/yuwen/demo/service/impl/RoleServiceImpl.java
src/main/java/com/yuwen/demo/controller/RoleController.java

4.CodeGenerator.java代码

package com.example.demo.uitl.generate;import java.util.ArrayList;
import java.util.List;import com.baomidou.mybatisplus.core.toolkit.StringPool;
import com.baomidou.mybatisplus.generator.AutoGenerator;
import com.baomidou.mybatisplus.generator.InjectionConfig;
import com.baomidou.mybatisplus.generator.config.ConstVal;
import com.baomidou.mybatisplus.generator.config.DataSourceConfig;
import com.baomidou.mybatisplus.generator.config.FileOutConfig;
import com.baomidou.mybatisplus.generator.config.GlobalConfig;
import com.baomidou.mybatisplus.generator.config.PackageConfig;
import com.baomidou.mybatisplus.generator.config.StrategyConfig;
import com.baomidou.mybatisplus.generator.config.TemplateConfig;
import com.baomidou.mybatisplus.generator.config.po.TableInfo;
import com.baomidou.mybatisplus.generator.config.rules.NamingStrategy;
import com.baomidou.mybatisplus.generator.engine.FreemarkerTemplateEngine;/*** * 代码生成器 ，先修改下面的常量配置参数，然后执行 main方法*/
public class CodeGenerator {// 数据库连接配置private static final String JDBC_DRIVER = "com.mysql.cj.jdbc.Driver";private static final String JDBC_URL = "jdbc:mysql://10.21.13.14:3306/demodb?useUnicode=true&useSSL=false&characterEncoding=utf8";private static final String JDBC_USER_NAME = "demo";private static final String JDBC_PASSOWRD = "demo123456";// 包名和模块名private static final String PACKAGE_NAME = "com.yuwen";private static final String MODULE_NAME = "demo";// 表名，多个表使用英文逗号分割private static final String TBL_NAMES = "tbl_role";// 表名的前缀，从表生成代码时会去掉前缀private static final String TABLE_PREFIX = "tbl_";// 生成代码入口main方法public static void main(String[] args) {// 0.代码生成器AutoGenerator mpg = new AutoGenerator();// 1.全局配置GlobalConfig gc = getGlobalConfig();mpg.setGlobalConfig(gc);// 2.数据源配置DataSourceConfig dsc = getDataSourceConfig();mpg.setDataSource(dsc);// 3.包配置PackageConfig pc = getPackageConfig();mpg.setPackageInfo(pc);// 4.自定义配置InjectionConfig cfg = getInjectionConfig();mpg.setCfg(cfg);// 5.模板配置TemplateConfig templateConfig = getTemplateConfig();mpg.setTemplate(templateConfig);// 使用Freemarker模板引擎mpg.setTemplateEngine(new FreemarkerTemplateEngine());// 6.策略配置StrategyConfig strategy = getStrategyConfig();mpg.setStrategy(strategy);// 7.开始生成代码mpg.execute();}/** 1.全局配置 */private static GlobalConfig getGlobalConfig() {GlobalConfig gc = new GlobalConfig();String projectPath = System.getProperty("user.dir");gc.setOutputDir(projectPath + "/src/main/java");gc.setAuthor("yuwen");gc.setOpen(false);// 自定义生成的ServiceName，去掉默认的ServiceName前面的Igc.setServiceName("%s" + ConstVal.SERVICE);gc.setMapperName("%sDao");// gc.setSwagger2(true); 实体属性 Swagger2 注解return gc;}/** 2.数据源配置 */private static DataSourceConfig getDataSourceConfig() {DataSourceConfig dsc = new DataSourceConfig();dsc.setDriverName(JDBC_DRIVER);dsc.setUrl(JDBC_URL);// dsc.setSchemaName("public");dsc.setUsername(JDBC_USER_NAME);dsc.setPassword(JDBC_PASSOWRD);return dsc;}/** 3.包配置 */private static PackageConfig getPackageConfig() {PackageConfig pc = new PackageConfig();// 生成PACKAGE_NAME.MODULE_NAME的包路径pc.setParent(PACKAGE_NAME);pc.setModuleName(MODULE_NAME);pc.setMapper("dao");return pc;}/** 4.自定义配置 */private static InjectionConfig getInjectionConfig() {// 这里模板引擎使用的是freemarkerString templatePath = "/templates/mapper.xml.ftl";// 自定义输出配置List<FileOutConfig> focList = new ArrayList<>();String projectPath = System.getProperty("user.dir");// 自定义配置会被优先输出focList.add(new FileOutConfig(templatePath) {@Overridepublic String outputFile(TableInfo tableInfo) {// 自定义输出文件名 ， 如果你 Entity 设置了前后缀、此处注意 xml 的名称会跟着发生变化return projectPath + "/src/main/resources/mapper/" + tableInfo.getMapperName() + StringPool.DOT_XML;}});InjectionConfig cfg = new InjectionConfig() {@Overridepublic void initMap() {// to do nothing}};cfg.setFileOutConfigList(focList);return cfg;}/** 5.模板配置 */private static TemplateConfig getTemplateConfig() {TemplateConfig templateConfig = new TemplateConfig();// 配置自定义输出模板// 指定自定义模板路径，注意不要带上.ftl/.vm, 会根据使用的模板引擎自动识别// templateConfig.setEntity("templates/entity2.java");// templateConfig.setService();// templateConfig.setController();templateConfig.setXml(null);return templateConfig;}/** 6.策略配置 */private static StrategyConfig getStrategyConfig() {StrategyConfig strategy = new StrategyConfig();// 下划线转驼峰命名strategy.setNaming(NamingStrategy.underline_to_camel);strategy.setColumnNaming(NamingStrategy.underline_to_camel);strategy.setEntityLombokModel(false);strategy.setRestControllerStyle(true);strategy.setInclude(TBL_NAMES.split(","));strategy.setControllerMappingHyphenStyle(true);strategy.setTablePrefix(TABLE_PREFIX);return strategy;}}

5.src/main/resources/mapper/RoleDao.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.yuwen.demo.dao.RoleDao"></mapper>

6.src/main/java/com/yuwen/demo/entity/Role.java

package com.yuwen.demo.entity;import com.baomidou.mybatisplus.annotation.TableName;
import java.io.Serializable;/*** <p>* * </p>** @author yuwen* @since 2020-07-13*/
@TableName("TBL_ROLE")
public class Role implements Serializable {private static final long serialVersionUID = 1L;/*** 主键ID*/private Long id;/*** 角色名*/private String roleName;/*** 角色描述*/private String roleDescribe;public Long getId() {return id;}public void setId(Long id) {this.id = id;}public String getRoleName() {return roleName;}public void setRoleName(String roleName) {this.roleName = roleName;}public String getRoleDescribe() {return roleDescribe;}public void setRoleDescribe(String roleDescribe) {this.roleDescribe = roleDescribe;}@Overridepublic String toString() {return "Role{" +"id=" + id +", roleName=" + roleName +", roleDescribe=" + roleDescribe +"}";}
}

7.src/main/java/com/yuwen/demo/dao/RoleDao.java

package com.yuwen.demo.dao;import com.yuwen.demo.entity.Role;
import com.baomidou.mybatisplus.core.mapper.BaseMapper;/*** <p>*  Mapper 接口* </p>** @author yuwen* @since 2020-07-13*/
public interface RoleDao extends BaseMapper<Role> {}

8.src/main/java/com/yuwen/demo/service/RoleService.java

package com.yuwen.demo.service;import com.yuwen.demo.entity.Role;
import com.baomidou.mybatisplus.extension.service.IService;/*** <p>*  服务类* </p>** @author yuwen* @since 2020-07-13*/
public interface RoleService extends IService<Role> {}

9.src/main/java/com/yuwen/demo/service/impl/RoleServiceImpl.java

package com.yuwen.demo.service.impl;import com.yuwen.demo.entity.Role;
import com.yuwen.demo.dao.RoleDao;
import com.yuwen.demo.service.RoleService;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import org.springframework.stereotype.Service;/*** <p>*  服务实现类* </p>** @author yuwen* @since 2020-07-13*/
@Service
public class RoleServiceImpl extends ServiceImpl<RoleDao, Role> implements RoleService {}

10.src/main/java/com/yuwen/demo/controller/RoleController.java

package com.yuwen.demo.controller;import org.springframework.web.bind.annotation.RequestMapping;import org.springframework.web.bind.annotation.RestController;/*** <p>*  前端控制器* </p>** @author yuwen* @since 2020-07-13*/
@RestController
@RequestMapping("/demo/role")
public class RoleController {}