java - Object suddenly missing from HttpServletRequest -

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I have a list directly using servlet print author list print.

When I try to put in jsp, but the list does not print whether I use JSTL or scriptlets.

I tried to test in JSTL and scriptlet, if the object is zero and it shows that it is! The

Why does this happen and how can I fix it

The servlet code that

  (artist Artist: artist) Works for? {Resp.getWriter () .println (artist.getName ()); }  

The servlet code puts the object in the request

  public void doGet (HttpServletRequest request, HttpServletResponse resp) throws IOException {ApplicationContext ctx = new ClassPathXmlApplicationContext ( " Com / HelloWorld / bean / HelloWorld-context.xml "); Artist Dow Artist Dao = (Artistado) CTX .get Bean ("Artist Dao"); & Lt; Artist & gt; Artist = null; {Try Artists = Artist Dao.Get ALL (); } Hold (SQLException e) {e.printstaxtrace (); } Req.setAttribute ("artist", artist); Try {req.getRequestDispatcher ("index.jsp"). Forward (request, resp); } Catch (ServletExtension E) {e.printStackTrace (); }  

scriptlet code that suddenly object finds null

  & lt;% List of & lt; Artist & gt; Artist = (list & lt; artist & gt;) request.getAttribute ("artist"); If (artists == faucet) {out.println ("Artists' null"); } Else {for (artist artist: artist) {out.println (artist.getName ()); }}% ​​& Gt;  

Even JSTL code

  & seems to agree lt, c: if test = "$ {stars eq null}" & gt; Artists are no & lt; / C: if & gt; & Lt; C: forEach var = "artist" item = "$ {artist}" & gt; $ {Artist.name} & lt; / C: forEach & gt;  

For my app I am using Weblogic, Spring 2.5.6 and Ibatis.