Mybatis plus的自动填充与乐观锁的实例详解（springboot）

@TableField(fill= FieldFill.INSERT)
  private Date createTime;

  @TableField(fill = FieldFill.INSERT_UPDATE)
  private Date updateTime;

@Component
public class MyMetaObjectHandler implements MetaObjectHandler {

  /**
   *
   * 使用Mybatis-plus执行insert操作这个方法执行
   */
  @Override
  public void insertFill(MetaObject metaObject) {
      this.setFieldValByName("createTime",new Date(),metaObject);
      this.setFieldValByName("updateTime",new Date(),metaObject);
  }

  /**
   *
   * 使用Mybatis-plus执行update操作这个方法执行
   */
  @Override
  public void updateFill(MetaObject metaObject) {
    this.setFieldValByName("updateTime",new Date(),metaObject);
  }
}

 @Version
  private Integer version;

@Configuration
@MapperScan("com.zyw.mpdemo.mapper")
public class MpConfig {
  
  @Bean
  public OptimisticLockerInterceptor optimisticLockerInterceptor() {
    return new OptimisticLockerInterceptor();
  }

}

 @Override
  public void test(Account account) {
    Account account1 = accountMapper.selectById(1326188266440888321L);
    Account account2 = accountMapper.selectById(1326188266440888321L);
    account1.setMoney(account.getMoney());
    account2.setMoney(account.getMoney()+100);
    accountMapper.updateById(account1);
    accountMapper.updateById(account2);

  }