jeecg boot 乐观锁使用

mybatis-plus 乐观锁
当要更新一条记录的时候，希望这条记录没有被别人更新

spring boot 注解方式

    import com.baomidou.mybatisplus.extension.plugins.MybatisPlusInterceptor;
    import com.baomidou.mybatisplus.extension.plugins.inner.OptimisticLockerInnerInterceptor;
    import org.mybatis.spring.annotation.MapperScan;
    import org.springframework.context.annotation.Bean;
    import org.springframework.context.annotation.Configuration;
    
    /**
     * @author Administrator
     */
    @Configuration
    @MapperScan(value={"org.jeecg.modules.**.mapper*"})
    public class MybatisPlusConfig {
    
        /**
         * 新版
         */
        @Bean
        public MybatisPlusInterceptor mybatisPlusOptimisticLocking() {
            MybatisPlusInterceptor mybatisPlusInterceptor = new MybatisPlusInterceptor();
            mybatisPlusInterceptor.addInnerInterceptor(new OptimisticLockerInnerInterceptor());
            return mybatisPlusInterceptor;
        }
    }

在实体类的字段上加上@Version注解

    @Version
    private Integer version;



  测试：
  

      @PostMapping(value = "/getCarouselList11")
        public Result<?> getCarouselList12() {
            CompletableFuture<String> a = asyncService.doSomething("我是改的第一个");
            CompletableFuture<String> b = asyncService.doSomething("我是改的第二个");
            String result=null;
            CompletableFuture.allOf(a, b).join();
            try {
                result = a.get() + b.get();
            } catch (InterruptedException e) {
                e.printStackTrace();
            } catch (ExecutionException e) {
                e.printStackTrace();
            }
    
            return Result.OK("获取成功",result);
        }