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springboot3.0整合mybatis-flex實(shí)現(xiàn)逆向工程的示例代碼

更新時(shí)間：2024年06月24日 11:23:35 作者：小神話ing

逆向工程先創(chuàng)建數(shù)據(jù)庫(kù)表,由框架負(fù)責(zé)根據(jù)數(shù)據(jù)庫(kù)表,自動(dòng)生成mybatis所要執(zhí)行的代碼,本文就來(lái)介紹一下springboot mybatis-flex逆向工程,感興趣的可以了解一下

什么是mybatis逆向工程？

mybatis需要程序員編寫SQL語(yǔ)句。mybatis官網(wǎng)提供了逆向工程，針對(duì)對(duì)于單表可自動(dòng)生成mybatis所要執(zhí)行的代碼(mapper.java、mapper.xml、pojo…)

實(shí)際開發(fā)中常用的逆向工程方式：

由數(shù)據(jù)庫(kù)的表生成代碼，之所以強(qiáng)調(diào)“單表”兩個(gè)字，是因?yàn)閙ybatis逆向工程生成的Mapper接口所進(jìn)行的操作都是針對(duì)單表的。

引入基本依賴

<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:
  # 啟動(dòng)時(shí)檢查是否存在 MyBatis XML 文件，默認(rèn)不檢查
  check-config-location: false
  # 是否控制臺(tái)打印 MyBatis-Flex 的 LOGO 及版本號(hào)
  global-config:
    print-banner: true
    normal-value-of-logic-delete: 0
    deleted-value-of-logic-delete: 1

生成器，修改為自己的配置即可

package gen;

import com.mybatisflex.codegen.Generator;
import com.mybatisflex.codegen.config.GlobalConfig;
import com.zaxxer.hikari.HikariDataSource;
import org.junit.Test;

/**
 * @author 程序員星星
 * @date 2023/7/27
 * @Description
 */
public class Codegen {
    //數(shù)據(jù)庫(kù)名和模塊名（這里數(shù)據(jù)庫(kù)名和模塊名一樣）
    private static final String databaseName = "five_cube_test";
    //主機(jī) ip
    private static final String host = "192.168.157.129";
    //數(shù)據(jù)庫(kù)用戶名
    private static final String username = "root";
    //數(shù)據(jù)庫(kù)密碼
    private static final String password = "root";
    //生成代碼的路徑
    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";
    //父包模塊名
    private static final String moduleName = "mybatisFlex";
    //邏輯刪除字段
    private static final String logicDeleteColumn = "status";
    //樂(lè)觀鎖字段
    private static final String versionColumn = "version";

    @Test
    public void genCode() {
        //配置數(shù)據(jù)源
        HikariDataSource dataSource = new HikariDataSource();
        dataSource.setJdbcUrl("jdbc:mysql://" + host + ":3306/" + databaseName + "?characterEncoding=utf-8");
        dataSource.setUsername(username);
        dataSource.setPassword(password);
        //創(chuàng)建配置內(nèi)容，兩種風(fēng)格都可以。
        GlobalConfig globalConfig = createGlobalConfigUseStyle2();
        //通過(guò) datasource 和 globalConfig 創(chuàng)建代碼生成器
        Generator generator = new Generator(dataSource, globalConfig);
        //生成代碼
        generator.generate();
    }

    public static GlobalConfig createGlobalConfigUseStyle2() {
        //創(chuàng)建配置內(nèi)容
        GlobalConfig globalConfig = new GlobalConfig();
        //設(shè)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);
        //設(shè)置表前綴和只生成哪些表，setGenerateTable 未配置時(shí)，生成所有表
        globalConfig.getStrategyConfig()
//                .setTablePrefix("tb_")
                .setLogicDeleteColumn(logicDeleteColumn)
                .setVersionColumn(versionColumn)
                .setGenerateTable(tableName);//生成多個(gè)表的寫法"sys_user","sys_dept"
        //設(shè)置生成 entity 并啟用 Lombok
        globalConfig.enableEntity()
                .setWithLombok(true);
        //設(shè)置生成 mapper
        globalConfig.enableMapper();
        //設(shè)置生成 mapper.xml
        globalConfig.enableMapperXml();
        //設(shè)置生成service
        globalConfig.enableService();
        globalConfig.enableServiceImpl();
        //設(shè)置生成controller
        globalConfig.enableController();
        //設(shè)置生成tableDef
        globalConfig.enableTableDef();
        return globalConfig;
    }
}

config配置類(可選)

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 程序員星星
 * @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) {
        //開啟審計(jì)功能
        AuditManager.setAuditEnable(true);
        //設(shè)置 SQL 審計(jì)收集器
        MessageCollector collector = new ConsoleMessageCollector();
        AuditManager.setMessageCollector(collector);
        //設(shè)置 SQL 審計(jì)收集器
        AuditManager.setMessageCollector(auditMessage ->
                logger.info("{},{}ms", auditMessage.getFullSql(), auditMessage.getElapsedTime())
        );
    }
}

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