JAVA高级面试进阶训练营视频教程

admin

可以通过上下文获取事务管理器，然后取消每次的事务提交，完成后进行事务提交。

 1 package com.ydmes.service.impl.log;
 2 
 3 import com.ydmes.domain.entity.log.BarTraceBackLog;
 4 import org.springframework.beans.BeansException;
 5 import org.springframework.context.ApplicationContext;
 6 import org.springframework.context.ApplicationContextAware;
 7 import org.springframework.jdbc.datasource.DataSourceTransactionManager;
 8 import org.springframework.stereotype.Component;
 9 import org.springframework.transaction.TransactionDefinition;
10 import org.springframework.transaction.TransactionStatus;
11 import org.springframework.transaction.support.DefaultTransactionDefinition;
12 
13 import java.util.List;
14 
15 @Component
16 public class BarTraceBackLogBatchServiceImpl implements ApplicationContextAware {
17     private static ApplicationContext applicationContext;
18 
19     public void batchInsertBarTraceBackLogs(List<BarTraceBackLog> barTraceBackLogs) {
20         DefaultTransactionDefinition definition = new DefaultTransactionDefinition();
21         definition.setPropagationBehavior(TransactionDefinition.PROPAGATION_REQUIRES_NEW);
22         definition.setIsolationLevel(TransactionDefinition.ISOLATION_READ_COMMITTED);
23 
24         DataSourceTransactionManager transactionManager = (DataSourceTransactionManager)
25                 applicationContext.getBean("shardingTransactitonManager");
26         TransactionStatus transactionStatus = transactionManager.getTransaction(definition);
27 
28         for (BarTraceBackLog barTraceBackLog : barTraceBackLogs) {
29             //UserDao有create方法，单条插入
30             applicationContext.getBean(BarTraceBackLogServiceImpl.class).insertSelective(barTraceBackLog);
31         }
32         transactionManager.commit(transactionStatus);
33     }
34 
35 
36     @Override
37     public void setApplicationContext(ApplicationContext applicationContext) throws BeansException {
38         this.applicationContext = applicationContext;
39     }
40 }