mybatis-plus逆向工程生成代码示例

 

pom.xml

2.1
2.2.0



    org.apache.velocity
    velocity-engine-core
    ${velocity-engine-core.version}



    com.baomidou
    mybatis-plus
    ${mybatis-plus.version}

 

Coding

MybatisPlusGenerator

package com.finance.www.config;

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.DbType;
import com.baomidou.mybatisplus.generator.config.rules.NamingStrategy;
import org.apache.commons.lang3.StringUtils;

import java.util.*;

/**
 * @author 954L
 * @create 2020/3/6 13:21
 */
public class MybatisPlusGenerator {
    
    /**配置文件信息*/
    private static final ResourceBundle RB_MYBATIS_PLUS = ResourceBundle.getBundle("mybatis-plus");

    /**java文件目录*/
    private static final String JAVA_SOURCE_PATH = System.getProperty("user.dir") + "/src/main/java";

    /**xml映射文件目录*/
    private static final String XML_SOURCE_PATH = System.getProperty("user.dir") + "/src/main/resources/mapper/";

    public static void main(String[] args) throws InterruptedException {
        AutoGenerator mpg = new AutoGenerator();

        // 全局配置
        mpg.setGlobalConfig(getGlobalConfig(JAVA_SOURCE_PATH));

        // 数据源配置
        mpg.setDataSource(getDataSourceConfig());

        // 数据库表配置
        mpg.setStrategy(getStrategyConfig(RB_MYBATIS_PLUS.getString("tableNames").split(",")));

        // 配置包结构
        String controllerPag = RB_MYBATIS_PLUS.getString("controller.package");
        String servicePag = RB_MYBATIS_PLUS.getString("service.package");
        String serviceImplPag = RB_MYBATIS_PLUS.getString("service.impl.package");
        String entityPag = RB_MYBATIS_PLUS.getString("entity.package");
        String mapperPag = RB_MYBATIS_PLUS.getString("mapper.package");
        mpg.setPackageInfo(getPackageConfig(controllerPag, servicePag, serviceImplPag, 
                entityPag, mapperPag));

        // mapper.xml配置
        mpg.setCfg(getInjectionConfig());

        // 删除默认的xml生成
        TemplateConfig tc = new TemplateConfig();
        tc.setXml(null);
        if (StringUtils.isBlank(controllerPag))
            tc.setController(null);
        if (StringUtils.isBlank(servicePag))
            tc.setService(null);
        if (StringUtils.isBlank(serviceImplPag))
            tc.setServiceImpl(null);
        if (StringUtils.isBlank(entityPag))
            tc.setEntity(null);
        if (StringUtils.isBlank(mapperPag))
            tc.setMapper(null);
        
        mpg.setTemplate(tc);

        // 执行
        mpg.execute();
    }

    private static InjectionConfig getInjectionConfig(){
        // 注入自定义配置
        InjectionConfig cfg = new InjectionConfig() {
            @Override
            public void initMap() {
                Map map = new HashMap(2);
                map.put("abc", this.getConfig().getGlobalConfig().getAuthor() + "-RB_MYBATIS_PLUS");
                this.setMap(map);
            }
        };

        // 修改xml生成目录
        List focList = new ArrayList();
        focList.add(new FileOutConfig("/templates/mapper.xml.vm") {
            @Override
            public String outputFile(TableInfo tableInfo) {
                return XML_SOURCE_PATH + tableInfo.getEntityName() + "Mapper.xml";
            }
        });
        cfg.setFileOutConfigList(focList);
        return cfg;
    }

    private static PackageConfig getPackageConfig(String controllerPackage,
                                                  String servicPackage,
                                                  String serviceImplPackage,
                                                  String entityPackage,
                                                  String mapperPackage){
        PackageConfig pc = new PackageConfig();
        pc.setParent(RB_MYBATIS_PLUS.getString("parent.package"));
        if (StringUtils.isNotBlank(controllerPackage))
            pc.setController(controllerPackage);
        if (StringUtils.isNotBlank(servicPackage))
            pc.setService(servicPackage);
        if (StringUtils.isNotBlank(serviceImplPackage))
            pc.setServiceImpl(serviceImplPackage);
        if (StringUtils.isNotBlank(entityPackage))
            pc.setEntity(entityPackage);
        if (StringUtils.isNotBlank(mapperPackage))
            pc.setMapper(mapperPackage);
        return pc;
    }

    private static StrategyConfig getStrategyConfig(String... tableNames){
        StrategyConfig strategy = new StrategyConfig();
        // 驼峰
        strategy.setNaming(NamingStrategy.underline_to_camel);
        strategy.setInclude(tableNames);
        return strategy;
    }

    private static DataSourceConfig getDataSourceConfig(){
        DataSourceConfig dsc = new DataSourceConfig();
        dsc.setDbType(DbType.MYSQL);
        dsc.setDriverName(RB_MYBATIS_PLUS.getString("mysql.driver"));
        dsc.setUrl(RB_MYBATIS_PLUS.getString("mysql.url"));
        dsc.setUsername(RB_MYBATIS_PLUS.getString("mysql.user"));
        dsc.setPassword(RB_MYBATIS_PLUS.getString("mysql.pwd"));
        return dsc;
    }

    private static GlobalConfig getGlobalConfig(String outPutDir){
        GlobalConfig gc = new GlobalConfig();
        gc.setOutputDir(outPutDir);
        gc.setFileOverride(true);
        gc.setActiveRecord(true);
        gc.setEnableCache(false);
        gc.setBaseResultMap(true);
        gc.setBaseColumnList(true);
        gc.setAuthor(RB_MYBATIS_PLUS.getString("author"));
        // 自定义文件命名，%s：文件名
        gc.setMapperName("%sMapper");
        gc.setXmlName("%sMapper");
        gc.setServiceName("I%sService");
        gc.setServiceImplName("%sServiceImpl");
        gc.setControllerName("%sController");
        return gc;
    }

}

 

mybatis-plus.properties

author=954L

#需要逆向生成的表名：多个用“,”号分割
tableNames=table_table

#父包名
parent.package=com.finance.www
#代码分层包名     留空：不生成代码
controller.package=app.web
service.package=app.service
service.impl.package=app.service.impl
entity.package=data.orm
mapper.package=data.mappers

#数据库连接信息
mysql.driver=com.mysql.jdbc.Driver
mysql.url=jdbc:mysql://127.0.0.1:3306/financedata
mysql.user=root
mysql.pwd=password

 

 

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