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MyBatis Generator Plus

License Build Status Maven Central

1.介绍:

MyBatis generator plus 基于mybatis-generator-core v.1.3.2 扩展,增加了以下特性:

  1. 生成支持Oracle、Mysql、Sqlserver分页查询的代码:
//分页查询demo
OperateLogExample relationshipsExample = new OperateLogExample();
relationshipsExample.setPagination(0L,10L);
List<OperateLog> operateLogList = operateLogMapper.selectByExample(relationshipsExample);
  1. 生成支持Oracle、Mysql、Sqlserver批量插入的代码:
//批量插入demo
List<OperateLog> operateLogList = new ArrayList<>();
for (int i = 0; i < 5; i++) {
    OperateLog operateLog = new OperateLog.Builder()
        .action("insertBatch_test"+i)
        .build();
    operateLogList.add(operateLog);
}
operateLogMapper.insertBatch(operateLogList);
  1. Model类支持Builder模式创建,示例代码:
User user = new User.Builder()
    .userName("insert_test")
    .creatTime(new Date())
    .updateTime(new Date())
    .build();
  1. 支持Oracle使用SEQUENCE实现自增主键:
    需要建立表主键对应的SEQUENCE,并且SEQUENCE的名称作出了要求:格式为table_name_SEQUENCE

  2. 支持Mapper接口设置数据源schema,可用于分库业务;
    demo.mapper.ooc.UserVisitLogMapper.DATA_SOURCE_NAME

  3. 针对MySQL下分页大偏移量时慢查询优化List<Domain> selectByBigOffset(DomainExample example);

  4. 乐观锁支持int updateByOptimisticLock(Domain record);

2.使用方式

方式一: 配置maven插件生成代码【推荐】

pom里plugin配置如下:

<plugin>
  <groupId>org.ihansen.mbp</groupId>
  <artifactId>mybatis-generator-plus-maven-plugin</artifactId>
  <version>1.4</version>
  <configuration>
    <verbose>true</verbose>
    <overwrite>true</overwrite>
    <configurationFile>tool/mbp/MybatisGeneratorCfg.xml</configurationFile>
  </configuration>
</plugin>

供参考的MBP配置文件: MybatisGeneratorCfg.xml
终端运行如下命令,生成自动代码:

mvn org.ihansen.mbp:mybatis-generator-plus-maven-plugin:1.4:generate

方式二:运行可执行jar文件

包含运行依赖包的可独立执行jar文件:mybatis-generator-plus-jar-with-dependencies.jar
供参考的MBP配置文件: MybatisGeneratorCfg.xml
使用如下命令执行即可生成自动文件:

java -jar mybatis-generator-plus-jar-with-dependencies-1.4.jar -configfile MybatisGeneratorCfg.xml -overwrite

方式三:main方法运行

本工具的使用方式和原生的MyBatis generator使用方式一致,兼容原生版本。maven 坐标:

<dependency>
  <groupId>org.ihansen.mbp</groupId>
  <artifactId>mybatis-generator-plus</artifactId>
  <version>1.4</version>
  <scope>test</scope>
</dependency>

生成文件的示例入口: test/demo.MBPMain

3.MBP的用户:

ihansen.org 掌上110

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