title: ORA-01465: invalid hex number while insert data from text area
body: <p>i want insert data from jsp page to oracle database. i use textarea tag for write message.<a href="http://i.stack.imgur.com/dtQae.png" rel="nofollow">it s my contact form</a></p>
  
  <p>here is my sql code</p>
  
  <pre><code>Create Table message(
  id  number primary key,
  name varchar2(50),
  student_id number,
  mess varchar2(4000),
  reply varchar2(4000));
  </code></pre>
  
  <p>and this is jsp code</p>
  
  <pre><code>String name = request.getParameter("name");
  String mess = request.getParameter("mes");
  String sid = (String) session.getAttribute("STID");
  Class.forName("oracle.jdbc.driver.OracleDriver");
  conn = DriverManager.getConnection("jdbc:oracle:thin:@localhost:1521:XE", "system", "12345");
  ps = conn.prepareStatement("insert into message values(id_seq.nextval,?,?,?");
  ps.setString(1, name);
  ps.setString(2, sid);
  ps.setString(3, mess);
  </code></pre>
  
  <p>when i click button  i get ORA-01465: invalid hex number error. how can i resolve it?</p>