将Clob读入xml解析器的最安全方法

Question

I'm getting an input stream from a Clob in oracle 11 (using the the oracle 11 jdbc driver), and passing the input stream to an xml parser in Java:

java.sql.Clob clob = resultSet.getClob("myClob");
InputStream is = clob.getAsciiStream();
MyDom dom = MyDomParser.parse(is);

Wondering if using a CharacterStream would be safer? eg instead:

Reader r = clob.getCharacterStream();
MyDom dom = MyDomParser.parse(r);

My thinking is that getCharacterStream() might be doing some encoding that helps guarantee nice UTF-8 is returned. Not sure if there is any real difference between the two ways shown here of reading the clob.

Answer 1

Not much difference, getCharacterStream is better for unicode data. Check the link http://community.actian.com/wiki/Manipulating_SQL_CLOB_data_with_JDBC