How can I get the content of clob in oracle db?

In jsp,if I want to get the characters from CLOB column in ORACLE DataBase,what should I do?
I am waiting for the answer hurrily.Thank you!

import these two classes:
import oracle.sql.CLOB;
import oracle.jdbc.driver.OracleResultSet;To retrieve the clob, use
              ResultSet rs;
                  get the rs from database
              int i = 1; // this is the column Index in the rs
              CLOB cl = ((OracleResultSet)rs).getCLOB(i);
              int len = (int)cl.length();
              String str = cl.getSubString(1,len);

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