TrsnsactionManager

/**
 * @date 2019/7/8 9:48
 * 事物管理器   是aop 通知对象
 */
@Component
public class TrsnsactionManager {
    @Autowired
    private ConnectionUtils connectionUtils;
    public void setConnectionUtils(ConnectionUtils connectionUtils){
        this.connectionUtils=connectionUtils;
    }


    //  开启事物
    public void beginTransaction(){
        //  从当前线程获得连接
        try {
            connectionUtils.getThreadConnction().setAutoCommit(false);
        } catch (SQLException e) {
            e.printStackTrace();
        }
    }
    // 手动提交事物
    public void commit(){
        try {
            connectionUtils.getThreadConnction().commit();
        } catch (SQLException e) {
            e.printStackTrace();
        }
    }
    // 回滚事物
    public void rollback(){
        try {
            connectionUtils.getThreadConnction().rollback();
        } catch (SQLException e) {
            e.printStackTrace();
        }
    }
    // 释放连接
    public void release(){
        try {
            connectionUtils.getThreadConnction().setAutoCommit(true);
            // 还连接
            connectionUtils.getThreadConnction().close();
            //解绑线程
            connectionUtils.remove();
        } catch (SQLException e) {
            e.printStackTrace();
        }
    }
}