我正在尝试使用 Java 中的准备好的语句执行选择查询。在 Where 子句中,我正在检查时间戳类型列上的条件,如下所示。
String selectSQL = "select * from db.keycontacts WHERE CREATEDDATETIME>?";
PreparedStatement preparedStatement = connect.prepareStatement(selectSQL);
preparedStatement.setTimestamp(1, convertStrToTimestamp(lastSyncTimeStamp));
resultSet = preparedStatement.executeQuery(selectSQL );
//将timestampString转换为java.sql.Timestamp的函数
private java.sql.Timestamp convertStrToTimestamp(String dateTimeStr){
java.sql.Timestamp timeStampDate = null;
try {
DateFormat formatter = new SimpleDateFormat("yyyy-MM-dd hh:mm:ss");//2015-05-11 18:26:55
java.util.Date dateObj = (java.util.Date)formatter.parse(dateTimeStr);
timeStampDate = new Timestamp(dateObj.getTime());
} catch (ParseException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return timeStampDate;
}
执行查询时,出现以下异常。
com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '?' at line 1
那么我到底哪里出错了?
提前致谢。