当我有一个BatchUpdateException作为唯一约束冲突的结果时,有没有一种方法可以让我确定批插入中哪个记录是冲突的?例如,假设我正在通过调用PreparedStatement.executeBatch文件()并捕获BatchUpdateException,它的原因是“ORA-00001:unique约束”(ABC系统123)“违反”。当使用Eclipse进行调试时,我可以从这个异常中获得尽可能多的信息,但是我想找出哪个实际插入导致了对unique约束的违反。我有办法找到这些信息吗?
public void batchInsert(final Collection<MyObject> objectCollection)
{
try
{
if (connection == null)
{
connection = getJdbcTemplate().getDataSource().getConnection();
}
// get the last entity ID value so we can know where to begin
Long entityId = getJdbcTemplate().queryForLong("SELECT MAX(" + MyObject.ID_COLUMN_NAME +
") FROM " + MyObject.TABLE_NAME);
entityId++;
// get a date to use for the created and updated dates
Date now = new Date(new java.util.Date().getTime());
// set auto commit to false so we can batch save without committing each individual insert
connection.setAutoCommit(false);
// create the prepared statement
String insertSql = "INSERT INTO " + MyObject.TABLE_NAME + " (" +
MyObject.ID_COLUMN_NAME + ", VALUE_1, VALUE_2) " +
"VALUES (?, ?, ?)";
PreparedStatement preparedStatement = connection.prepareStatement(insertSql);
// add a batch entry for each of the SurfaceMetObservations objects
for (MyObject object : objectCollection)
{
preparedStatement.setLong(1, entityId);
preparedStatement.setBigDecimal(2, object.getValue1());
preparedStatement.setBigDecimal(3, object.getValue2());
preparedStatement.addBatch();
entityId++;
}
int updateCounts[] = preparedStatement.executeBatch();
preparedStatement.close();
if (confirmUpdateCounts(updateCounts))
{
connection.commit();
}
else
{
connection.rollback();
throw new RuntimeException("One or more inserts failed to execute.");
}
}
catch (SQLException ex)
{
throw new RuntimeException(ex);
}
}
我正在使用Spring的JdbcTemplate和一个Oracle11g数据库,以备不时之需。
--詹姆斯