spring配置文件

事务控制管理器transactionManager

示例java代码

// 保存信息

public MessageTpl saveMessage(Map mqInfo, Message message) throws Exception{

// 保存信息

//获取Spring容器的对象

ClassPathXmlApplicationContext contextLoader = new ClassPathXmlApplicationContext(

new String[] { "classpath*:spring/applicationContext.xml", "classpath*:spring/spring-mybatis.xml"});

//1.获取事务控制管理器

DataSourceTransactionManager transactionManager = contextLoader.getBean(

"transactionManager", DataSourceTransactionManager.class);

//2.获取事务定义

DefaultTransactionDefinition def = new DefaultTransactionDefinition();

//3.设置事务隔离级别，开启新事务

def.setPropagationBehavior(TransactionDefinition.PROPAGATION_REQUIRES_NEW);

//4.获得事务状态

TransactionStatus transactionStatus = transactionManager.getTransaction(def);

MessageTpl messageTpl = null;

try {

Date time = new Date();

String status = Constant.MESSAGE_STATUS_TO_BE_CONFIRMED;

String remark = "optId:"+mqInfo.get("userId")+"|预发布:待确认";

if (Constant.MQ_IS_CONFIRM_NO == (Integer) mqInfo.get("isConfirm")) {

status = Constant.MESSAGE_STATUS_TO_BE_SEND;

remark = "optId:"+mqInfo.get("userId")+"|待发送：消息不需要确认";

}

messageTpl = new MessageTpl((Long) mqInfo.get("mqId"), message.getContent(), 0,

(Long) mqInfo.get("userId"), status, time, time, Constant.MSG_TABLE + message.getQueueName(),

MD5Util.MD5_32(message.getContent()));

messageDao.saveMessage(messageTpl);

// TODO添加缓存

// 保存日志

MessageLogTpl log = new MessageLogTpl(null, "预发布", status, remark, time,

Constant.MSG_LOG_TABLE + message.getQueueName());

this.messageDao.saveMessageLog(log);

} catch (Exception e) {

transactionManager.rollback(transactionStatus);

messageTpl = null;

logger.error("saveMessage_Exception ", e);

}finally {

transactionManager.commit(transactionStatus);

}

return messageTpl;

}