MyBatis-Plus 代码生成器 适用于3.4.1及以下版本

        
        
            com.baomidou
            mybatis-plus-generator
            3.4.1
        
        
            com.baomidou
            mybatis-plus-generator
            3.4.1
        
        
        
            org.freemarker
            freemarker
            2.3.28
        
   

package com.example.demo.config;

import com.baomidou.mybatisplus.annotation.DbType;
import com.baomidou.mybatisplus.annotation.IdType;
import com.baomidou.mybatisplus.core.exceptions.MybatisPlusException;
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.*;
import com.baomidou.mybatisplus.generator.config.po.TableInfo;
import com.baomidou.mybatisplus.generator.config.rules.DateType;
import com.baomidou.mybatisplus.generator.config.rules.NamingStrategy;
import com.baomidou.mybatisplus.generator.engine.FreemarkerTemplateEngine;
import java.util.ArrayList;
import java.util.List;
import java.util.Scanner;


public class CodeGenerator {


    private static final String outputDir = "/demo/src/main/java";

    private static final String mapperXmlDir="/demo/src/main/resources/mapper";

    private static final String author = "Nami";

    //主键生成策略 uuid 类型：IdType.ASSIGN_UUID，自增类型：IdType.AUTO
    private static final IdType idType = IdType.ASSIGN_UUID;

    //数据库URL 用户名 密码
    private static final String url = "jdbc:sqlserver://KULDCDWADT01.aia.biz:1433;DatabaseName=db_pbdirectmy";
    private static final String username = "insureadmin";
    private static final String passwd = "aiadirectadmin";
    private static final String driverName = "com.microsoft.sqlserver.jdbc.SQLServerDriver";
    //sqlserver：DbType.SQL_SERVER，mysql：DbType.MYSQL
    private static final DbType dbType = DbType.SQL_SERVER;

    //模块名
    private static final String moduleName = null;
    //父包名 其他包默认为 entity / mapper / service / service.impl / controller
    private static final String packageName = "com.example.demo";
    //设置MVC下各个模块的包名
    private static final String entityName="entity";
    private static final String mapperName="mapper";
    private static final String serviceName="service";
    private static final String serviceImplName="service.impl";
    private static final String controllerName="controller";

    // 如果模板引擎是freemarker  templatePath= "/templates/mapper.xml.ftl";
    // 如果模板引擎是 velocity templatePath= "/templates/mapper.xml.vm";
    private static final String templatePath = "/templates/mapper.xml.ftl";


    
    public static String scanner(String tip) {
        Scanner scanner = new Scanner(System.in);
        StringBuilder help = new StringBuilder();
        help.append("请输入" + tip + "：");
        System.out.println(help.toString());
        if (scanner.hasNext()) {
            String ipt = scanner.next();
            if (ipt!=null && ipt.length()>0) {
                return ipt;
            }
        }
        throw new MybatisPlusException("请输入正确的" + tip + "！");
    }

    public static void main(String[] args) {
        // 1、代码生成器
        AutoGenerator mpg = new AutoGenerator();

        // 2、全局配置
        GlobalConfig gc = new GlobalConfig();
        String projectPath = System.getProperty("user.dir");
        gc.setOutputDir(projectPath+outputDir);
        gc.setAuthor(author);
        gc.setOpen(false); //生成后是否打开资源管理器
        gc.setFileOverride(false); //重新生成时文件是否覆盖
        gc.setControllerName("%sController");
        gc.setServiceName("%sService"); //去掉Service接口的首字母I
        gc.setServiceImplName("%sServiceImpl");
        gc.setMapperName("%sMapper");
        gc.setXmlName("%sMapper");
        gc.setIdType(idType); //主键策略
        gc.setDateType(DateType.ONLY_DATE);//定义生成的实体类中日期类型
        gc.setSwagger2(false);//开启Swagger2模式
        gc.setbaseResultMap(true);
        gc.setbaseColumnList(true);

        mpg.setGlobalConfig(gc);

        // 3.数据源配置
        DataSourceConfig dsc = new DataSourceConfig();
        dsc.setUrl(url);
        dsc.setUsername(username);
        dsc.setPassword(passwd);
        dsc.setDriverName(driverName);
        dsc.setDbType(dbType);
        mpg.setDataSource(dsc);

        // 4.包配置
        PackageConfig pc = new PackageConfig();
        pc.setModuleName(moduleName); //模块名
        pc.setParent(packageName);
        pc.setEntity(entityName);
        pc.setMapper(mapperName);
        pc.setService(serviceName);
        pc.setServiceImpl(serviceImplName);
        pc.setController(controllerName);
        mpg.setPackageInfo(pc);

        // 5.自定义配置
        InjectionConfig cfg = new InjectionConfig() {
            @Override
            public void initMap() {
                // to do nothing
            }
        };

        // 6.自定义输出配置
        List focList = new ArrayList<>();
        // 自定义配置会被优先输出
        focList.add(new FileOutConfig(templatePath) {
            @Override
            public 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 + mapperXmlDir
                        //+ "/"+pc.getModuleName()
                        + "/" + tableInfo.getEntityName() + "Mapper" + StringPool.DOT_XML;
            }
        });
        cfg.setFileOutConfigList(focList);
        mpg.setCfg(cfg);

        // 7.配置模板
        TemplateConfig templateConfig = new TemplateConfig();
        templateConfig.setXml(null);
        mpg.setTemplate(templateConfig);

        // 8.策略配置
        StrategyConfig strategy = new StrategyConfig();
        strategy.setInclude(scanner("表名，多个英文逗号分割").split(","));//对那一张表生成代码
        strategy.setNaming(NamingStrategy.underline_to_camel);//数据库表映射到实体的命名策略
        strategy.setColumnNaming(NamingStrategy.underline_to_camel);//数据库表字段映射到实体的命名策略
        strategy.setEntityLombokModel(true);// lombok 模型 @Accessors(chain = true) setter链式操作
        strategy.setRestControllerStyle(true);//restful api风格控制器
        strategy.setControllerMappingHyphenStyle(true); //url中驼峰转连字符
        strategy.setTablePrefix(pc.getModuleName() + "_");//生成实体时去掉表前缀

        mpg.setStrategy(strategy);
        mpg.setTemplateEngine(new FreemarkerTemplateEngine());
        // 9.执行
        mpg.execute();
    }

}

package com.example.demo.config;

import com.baomidou.mybatisplus.annotation.DbType;
import com.baomidou.mybatisplus.extension.plugins.MybatisPlusInterceptor;
import com.baomidou.mybatisplus.extension.plugins.PaginationInterceptor;
import com.baomidou.mybatisplus.extension.plugins.inner.PaginationInnerInterceptor;
import com.baomidou.mybatisplus.extension.plugins.pagination.optimize.JsqlParserCountOptimize;
import org.mybatis.spring.annotation.MapperScan;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;


@Configuration
@MapperScan("com.example.demo.mapper")
public class MybatisPlusConfig {

    
    // 旧版
    @Bean
    public PaginationInterceptor paginationInterceptor() {
        PaginationInterceptor paginationInterceptor = new PaginationInterceptor();
        // 设置请求的页面大于最大页后操作， true调回到首页，false 继续请求  默认false
        // paginationInterceptor.setOverflow(false);
        // 设置最大单页限制数量，默认 500 条，-1 不受限制
        // paginationInterceptor.setLimit(500);
        // 开启 count 的 join 优化,只针对部分 left join
        paginationInterceptor.setCountSqlParser(new JsqlParserCountOptimize(true));
        return paginationInterceptor;
    }

    // 最新版
    @Bean
    public MybatisPlusInterceptor mybatisPlusInterceptor() {
        MybatisPlusInterceptor interceptor = new MybatisPlusInterceptor();
        interceptor.addInnerInterceptor(new PaginationInnerInterceptor(DbType.H2));
        return interceptor;
    }
}