bboss persistent事务管理介绍 （四）

 

l       不带返回值的模板方法使用实例

 

TemplateDBUtil.executeTemplate(

              new JDBCTemplate(){

                  /**

                   * 整个execute()方法的执行都会被包含在一个数据库事务中

                   * 当有异常抛出时TemplateDBUtil.executeTemplate()方法就

* 会自动回滚整个数据库事务，

                   * 当整个方法正常结束后，事务就会自动被提交。

                   * 通过模板工具提供的便利，开发人员不需要编写自己的事务代码就

* 可以顺利地实现数据库的事务性操作

                   */

                  public void execute() throws Exception {

                     DBUtil dbUtil = new DBUtil();                                         PreparedDBUtil db = null;

                     try {

                         for (int i = 0; i < 10; i++) {

                            db = new PreparedDBUtil();

                                db.preparedInsert(

                                              "insert into td_reg_bank_acc_bak (create_acc_time,starttime,endtime) values(?,?,?)");

                                Date today = new Date(new java.util.Date().getTime());

                                db.setDate(1, new java.util.Date());

                                db.setDate(2, new java.util.Date());

                                db.setDate(3, new java.util.Date());

                                db.executePrepared();

                         }

                     }

                     catch(Exception e)

                     {

                         throw e;//抛出异常，将导致整个数据库事务回滚

                     }

                     try

                     {

                         dbUtil.executeInsert("insert into td_reg_bank_acc_bak (clob1,clob2) values('aa','bb')");

                     }

                     catch(Exception e)

                     {

                         throw e;//抛出异常，将导致整个数据库事务回滚

                     }                   

                     //方法顺利执行完成，事务自动提交

                  }            

              }

           );