mybatis-plus 乐观锁插件

spring boot 注解方式:

@Bean
public MybatisPlusInterceptor mybatisPlusInterceptor() {
    MybatisPlusInterceptor interceptor = new MybatisPlusInterceptor();
    interceptor.addInnerInterceptor(new OptimisticLockerInnerInterceptor());
    return interceptor;
}

在实体类的字段上加上@Version注解

@Version
private Integer version;