1.导入依赖
<!--MyBatisPlus依赖模块-->
<dependency>
<groupId>com.baomidou</groupId>
<artifactId>mybatis-plus-boot-starter</artifactId>
<version>3.3.2</version>
</dependency>
<!--MyBatisPlus代码生成器-->
<dependency>
<groupId>com.baomidou</groupId>
<artifactId>mybatis-plus-generator</artifactId>
<version>3.3.2</version>
</dependency>
<!-- freemarker模板-->
<dependency>
<groupId>org.freemarker</groupId>
<artifactId>freemarker</artifactId>
<version>2.3.29</version>
</dependency>
2.代码生成器
package com.example.demo;
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.DataSourceConfig;
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.rules.NamingStrategy;
import com.baomidou.mybatisplus.generator.engine.FreemarkerTemplateEngine;
import org.junit.jupiter.api.Test;
import java.util.HashMap;
import java.util.Map;
/**
* com.avatar.admin.genercode
* Description:
*
* @author jack
* @date 2021/06/25 15:56
*/
public class GeneratorCodeTest {
@Test
public void generatorCode() {
// 定义输出目录的位置
String projectPath = "/Users/Documents";
// 定义代码生成器
AutoGenerator autoGenerator = new AutoGenerator();
// 全局配置
GlobalConfig gc = new GlobalConfig();
gc.setOutputDir(projectPath);
// 作者名称
gc.setAuthor("jack");
// 是否覆盖
gc.setFileOverride(false);
// 不需要ActiveRecord特性的请改为false
gc.setActiveRecord(false);
// XML 二级缓存
gc.setEnableCache(false);
// XML ResultMap
gc.setBaseResultMap(true);
// XML columnList
gc.setBaseColumnList(true);
// 设置Service是否以I开头
gc.setServiceName("%sService");
// 设置主键是自增类型
gc.setIdType(IdType.AUTO);
// 把全局配置设置到代码生成器中
autoGenerator.setGlobalConfig(gc);
// 数据源配置
DataSourceConfig dataSourceConfig = new DataSourceConfig();
// 设置数据库类型
dataSourceConfig.setDbType(DbType.MYSQL);
dataSourceConfig.setDriverName("com.mysql.cj.jdbc.Driver");
dataSourceConfig.setUsername("root");
dataSourceConfig.setPassword("123456");
dataSourceConfig.setUrl("jdbc:mysql://127.0.0.1:3306/erupt?useUnicode=true&characterEncoding=UTF-8&useJDBCCompliantTimezoneShift=true&useLegacyDatetimeCode=false&serverTimezone=GMT%2b8");
// 把数据源配置到代码生成器中
autoGenerator.setDataSource(dataSourceConfig);
// 包配置
PackageConfig packageConfig = new PackageConfig();
// 父级路径
packageConfig.setParent("com.example.demo");
packageConfig.setController("controller");
packageConfig.setEntity("entity");
packageConfig.setMapper("mapper");
packageConfig.setService("service");
packageConfig.setServiceImpl("service.impl");
// pc.setXml("mapperXml");
// 把包策略配置到代码生成器中
autoGenerator.setPackageInfo(packageConfig);
// 策略配置
StrategyConfig strategyConfig = new StrategyConfig();
// 全局大写命名 ORACLE 注意
strategyConfig.setCapitalMode(true);
// 生成的表名
strategyConfig.setInclude("e_upms_menu");
// 表名生成策略
strategyConfig.setNaming(NamingStrategy.underline_to_camel);
// 设置实体类使用Lombok格式
strategyConfig.setEntityLombokModel(true);
// 把策略信息配置到代码生成器中
autoGenerator.setStrategy(strategyConfig);
// 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);
}
};
autoGenerator.setCfg(cfg);
TemplateConfig templateConfig = new TemplateConfig();
// 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.setService("/templates/service");
templateConfig.setController("/templates/controller");
templateConfig.setMapper("/templates/mapper");
autoGenerator.setTemplate(templateConfig);
autoGenerator.setTemplateEngine(new FreemarkerTemplateEngine());
// 执行生成
autoGenerator.execute();
}
}
3. 代码生成模板
模板可以参考mybatis-plus-generator
包里面的文件
service.ftl
package ${package.Service};
import ${package.Entity}.${entity};
import ${superServiceClassPackage};
/**
* ${package.Service}
* Description:
*
* @author ${author}
* @date ${date}
*/
<#if kotlin>
interface ${table.serviceName} : ${superServiceClass}<${entity}>
<#else>
public interface ${table.serviceName} extends ${superServiceClass}<${entity}> {
}
</#if>
mapper.ftl
package ${package.Mapper};
import ${package.Entity}.${entity};
import ${superMapperClassPackage};
/**
* ${package.Mapper}
* Description:
*
* @author ${author}
* @date ${date}
*/
<#if kotlin>
interface ${table.mapperName} : ${superMapperClass}<${entity}>
<#else>
public interface ${table.mapperName} extends ${superMapperClass}<${entity}> {
}
</#if>
contorller.ftl
package ${package.Controller};
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
<#if superControllerClassPackage??>
import ${superControllerClassPackage};
</#if>
/**
* ${package.Controller}
* Description:
*
* @author ${author}
* @date ${date}
*/
@RestController
@RequestMapping("<#if package.ModuleName?? && package.ModuleName != "">/${package.ModuleName}</#if>/<#if controllerMappingHyphenStyle??>${controllerMappingHyphen}<#else>${table.entityPath}</#if>")
<#if kotlin>
class ${table.controllerName}<#if superControllerClass??> : ${superControllerClass}()</#if>
<#else>
<#if superControllerClass??>
public class ${table.controllerName} extends ${superControllerClass} {
<#else>
public class ${table.controllerName} {
</#if>
}
</#if>