很多朋友在使用spring+hibernate或mybatis等框架時經常遇到報Transaction rolled back because it has been marked as rollback-only的異常，這個異常是怎麼造成的

呢，下面將給大家進行詳細的分析。

    這是專門寫的一個造成該異常的程式碼：

1. @Transactional
2. public void add(OperateLog entity)
   throws Exception {
3. // TODO Auto-generated method stub
4. operateLogDao.add(entity);
5. }

1. @Transactional
2. public
   void save(Member member) throws Exception {
3. memberDao.add(member);
4. }
6. @Transactional
7. public void add(Member member)
   throws Exception {
8. try {
9. this.save(member);
10. /*
11. * 日誌的title長度為10 我把值設定為add111111111111111111是為了造成異常
12. */
13. OperateLog entity = new OperateLog( "add111111111111111111", "1111");
14. operateLogService.add(entity);
15. } catch (Exception e) {
16. e.printStackTrace();
17. // throw e;
18. }
20. }

//throw e;的註釋//去掉，當我執行後就不會有改異常，只會報標題title太長的異常。如下面提示：

1. Caused by: com.mysql.jdbc.MysqlDataTruncation: Data truncation: Data too long for column '_title' at row 1
2. at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java: 4072)
3. at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java: 4006)
4. at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java: 2468)
5. at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java: 2629)
6. at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java: 2719)
7. at com.mysql.jdbc.PreparedStatement.executeInternal(PreparedStatement.java: 2155)
8. at com.mysql.jdbc.PreparedStatement.executeUpdate(PreparedStatement.java: 2450)
9. at com.mysql.jdbc.PreparedStatement.executeUpdate(PreparedStatement.java: 2371)
10. at com.mysql.jdbc.PreparedStatement.executeUpdate(PreparedStatement.java: 2355)
11. at org.apache.commons.dbcp.DelegatingPreparedStatement.executeUpdate(DelegatingPreparedStatement.java: 105)
12. at org.apache.commons.dbcp.DelegatingPreparedStatement.executeUpdate(DelegatingPreparedStatement.java: 105)
13. at org.hibernate.id.IdentityGenerator$GetGeneratedKeysDelegate.executeAndExtract(IdentityGenerator.java: 94)
14. at org.hibernate.id.insert.AbstractReturningDelegate.performInsert(AbstractReturningDelegate.java: 57)