SpringMVC+JdbcTemplate实现事务管理（插入操作需要返回自增字段）

来源：互联网发布：手机wifi网络测速编辑：程序博客网时间：2024/04/27 16:55

将Service层交给事务去管理，beans.xml配置如下：

<bean id="jdbcTemplate" class="org.springframework.jdbc.core.JdbcTemplate">
<property name="dataSource" ref="dataSource"></property>
</bean>

<tx:advice id="txAdvice" transaction-manager="transactionManager">
  <tx:attributes>
   <tx:method name="*" />
  </tx:attributes>
</tx:advice>

<aop:config>
<aop:pointcut id="serviceMethod" expression="execution(* dmmap.service.*.*(..))" />
<aop:advisor advice-ref="txAdvice" pointcut-ref="serviceMethod" />
</aop:config>

如果需要返回自增字段，插入过程如下：

public int createHousedoor(Housedoor housedoor) {
  int newId = 0;
  final Housedoor TmpDoor = housedoor;
  String issueDateStr = housedoor.getF_IssueDateStr();
  Date issueDate = null;
  if (issueDateStr != null) {
   try {
    issueDate = sdf.parse(issueDateStr);
   } catch (ParseException e) {
    e.printStackTrace();
   }
  }
  final Date _date = issueDate;
  KeyHolder keyholder = new GeneratedKeyHolder();
  final String insertsql = "insert into t_housedoor(F_TownId,F_Community,F_PropertyName,F_HouseEstate,F_BuildingNum,F_CellNum,F_RoomNum,F_DoorNum,F_MarkSizeId,F_SourceTypeId,F_Contact,F_Telephone,F_OldAddress,F_Remark,F_UserId,F_OptDate,F_bImport,F_CardId,F_IssueDate,F_Address) values (?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?)";
  int countt = 0;
  countt = jdbcTemplate.update(new PreparedStatementCreator() {
   @Override
   public PreparedStatement createPreparedStatement(Connection con)
     throws SQLException {
    // TODO Auto-generated method stub
    PreparedStatement preState = con.prepareStatement(insertsql,
      PreparedStatement.RETURN_GENERATED_KEYS);
    preState.setString(1, TmpDoor.getF_TownId());
    preState.setString(2, TmpDoor.getF_Community());
    preState.setString(3, TmpDoor.getF_PropertyName());
    preState.setString(4, TmpDoor.getF_HouseEstate());
    preState.setString(5, TmpDoor.getF_BuildingNum());
    preState.setString(6, TmpDoor.getF_CellNum());
    preState.setString(7, TmpDoor.getF_RoomNum());
    preState.setString(8, TmpDoor.getF_DoorNum());
    preState.setInt(9, TmpDoor.getF_MarkSizeId());
    preState.setInt(10, TmpDoor.getF_SourceTypeId());
    preState.setString(11, TmpDoor.getF_Contact());
    preState.setString(12, TmpDoor.getF_Telephone());
    preState.setString(13, TmpDoor.getF_OldAddress());
    preState.setString(14, TmpDoor.getF_Remark());
    preState.setString(15, TmpDoor.getF_UserId());
    preState.setDate(16, new java.sql.Date(new Date().getTime()));
    preState.setInt(17, TmpDoor.getF_bImport());
    preState.setString(18, TmpDoor.getF_CardId());
    if (_date == null)
     preState.setDate(19, null);
    else
     preState.setDate(19, new java.sql.Date(_date.getTime()));
    preState.setString(20, TmpDoor.getF_Address());
    return preState;
   }
  }, keyholder);
  if (countt == 1) {
   newId = (int) keyholder.getKey().longValue();
  }
  return newId;

}

上述代码中标红的地方一定不能让jdbcTemplate自己去获取，否则事务不起作用。

另外需要注意的是，在service的方法中调用dao层的方法，dao层方法中不能捕获异常，否则service端检测不到异常事务无法回滚

0 0