springboot3.0整合mybatis-flex实现逆向工程的示例代码_Java

什么是mybatis逆向工程？

mybatis需要程序员编写sql语句。mybatis官网提供了逆向工程，针对对于单表可自动生成mybatis所要执行的代码(mapper.java、mapper.xml、pojo…)

实际开发中常用的逆向工程方式：

由数据库的表生成代码，之所以强调“单表”两个字，是因为mybatis逆向工程生成的mapper接口所进行的操作都是针对单表的。

引入基本依赖

<dependency>
   <groupid>com.zaxxer</groupid>
   <artifactid>hikaricp</artifactid>
   <version>5.0.1</version>
</dependency>

<dependency>
   <groupid>com.mybatis-flex</groupid>
   <artifactid>mybatis-flex-spring-boot-starter</artifactid>
   <version>1.5.3</version>
</dependency>

<dependency>
   <groupid>com.mybatis-flex</groupid>
   <artifactid>mybatis-flex-codegen</artifactid>
   <version>1.5.3</version>
</dependency>

mybatis-flex yml配置

mybatis-flex:
  # 启动时检查是否存在 mybatis xml 文件，默认不检查
  check-config-location: false
  # 是否控制台打印 mybatis-flex 的 logo 及版本号
  global-config:
    print-banner: true
    normal-value-of-logic-delete: 0
    deleted-value-of-logic-delete: 1

生成器，修改为自己的配置即可

package gen;

import com.mybatisflex.codegen.generator;
import com.mybatisflex.codegen.config.globalconfig;
import com.zaxxer.hikari.hikaridatasource;
import org.junit.test;

/**
 * @author 程序员星星
 * @date 2023/7/27
 * @description
 */
public class codegen {
    //数据库名和模块名（这里数据库名和模块名一样）
    private static final string databasename = "five_cube_test";
    //主机 ip
    private static final string host = "192.168.157.129";
    //数据库用户名
    private static final string username = "root";
    //数据库密码
    private static final string password = "root";
    //生成代码的路径
    private static final string path = "d:\\myproject\\my\\test_mybatis_flex";
    //表名
    private static final string tablename = "user";
    //作者
    private static final string author = "lzx";
    //父包模块名
    private static final string modulename = "mybatisflex";
    //逻辑删除字段
    private static final string logicdeletecolumn = "status";
    //乐观锁字段
    private static final string versioncolumn = "version";

    @test
    public void gencode() {
        //配置数据源
        hikaridatasource datasource = new hikaridatasource();
        datasource.setjdbcurl("jdbc:mysql://" + host + ":3306/" + databasename + "?characterencoding=utf-8");
        datasource.setusername(username);
        datasource.setpassword(password);
        //创建配置内容，两种风格都可以。
        globalconfig globalconfig = createglobalconfigusestyle2();
        //通过 datasource 和 globalconfig 创建代码生成器
        generator generator = new generator(datasource, globalconfig);
        //生成代码
        generator.generate();
    }

    public static globalconfig createglobalconfigusestyle2() {
        //创建配置内容
        globalconfig globalconfig = new globalconfig();
        //设置根包
        globalconfig.getpackageconfig()
                .setsourcedir(path + "/src/main/java")
                .setbasepackage("com." + author + "." + modulename)
                .setmapperxmlpath(path + "/src/main/java/com/" + author + "/" + modulename + "/mapper/xml");
        globalconfig.getjavadocconfig()
                .setauthor(author);
        //设置表前缀和只生成哪些表，setgeneratetable 未配置时，生成所有表
        globalconfig.getstrategyconfig()
//                .settableprefix("tb_")
                .setlogicdeletecolumn(logicdeletecolumn)
                .setversioncolumn(versioncolumn)
                .setgeneratetable(tablename);//生成多个表的写法"sys_user","sys_dept"
        //设置生成 entity 并启用 lombok
        globalconfig.enableentity()
                .setwithlombok(true);
        //设置生成 mapper
        globalconfig.enablemapper();
        //设置生成 mapper.xml
        globalconfig.enablemapperxml();
        //设置生成service
        globalconfig.enableservice();
        globalconfig.enableserviceimpl();
        //设置生成controller
        globalconfig.enablecontroller();
        //设置生成tabledef
        globalconfig.enabletabledef();
        return globalconfig;
    }
}

config配置类(可选)

package com.lzx.mybatisflex.config;

import com.mybatisflex.core.flexglobalconfig;
import com.mybatisflex.core.audit.auditmanager;
import com.mybatisflex.core.audit.consolemessagecollector;
import com.mybatisflex.core.audit.messagecollector;
import com.mybatisflex.spring.boot.mybatisflexcustomizer;
import org.slf4j.logger;
import org.slf4j.loggerfactory;
import org.springframework.context.annotation.configuration;

/**
 * @author 程序员星星
 * @date 2023/6/8
 * @description
 */
@configuration
public class mybatisflexconfiguration implements mybatisflexcustomizer {
    private static final logger logger = loggerfactory.getlogger("mybatis-flex-sql");

    @override
    public void customize(flexglobalconfig flexglobalconfig) {
        //开启审计功能
        auditmanager.setauditenable(true);
        //设置 sql 审计收集器
        messagecollector collector = new consolemessagecollector();
        auditmanager.setmessagecollector(collector);
        //设置 sql 审计收集器
        auditmanager.setmessagecollector(auditmessage ->
                logger.info("{},{}ms", auditmessage.getfullsql(), auditmessage.getelapsedtime())
        );
    }
}

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