| Servlet Exception problem [message #19248] |
Thu, 27 January 2005 21:57  |
Eclipse User |
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Originally posted by: blian.email.com
I am running Eclipse 3.0.1 and J2sdk 1.4.1_02. I have an applet that calls
a servlet using HttpMessage from O'Reilly. The applet, servlet, and
HTTPMessage compile successfully and create class files. When I run the
applet the servlet is returning an exception immediately without executing a
line of code.
I have used System.out to print to the console each step of the way. I
debugged with breakpoints and everything appears to work correctly. As soon
as the buffer is accessed in HTTPmessage the returned data is an exception
with some unprintable data and a listing of the doGet method in the servlet.
I have reduced the code in the doGet method of the servlet to output a
string using System.out. That is all it does and I still get the exception
from the servlet.
I have looked for logs with possible error messages but I can't find any. I
am stumped. Any help is appreciated.
Here is the relevent code:
Applet
try
{
String league_id = "3";
String draftInfo = "";
URL url = new URL(getCodeBase(), "Draft/DraftStatus.class");
Properties props = new Properties();
props.setProperty("LeagueID",league_id);
// Create a com.oreilly.servlet.HttpMessage to communicate with
that URL
HttpMessage msg = new HttpMessage(url);
// Send a GET message to the servlet, with no query string
// Get the response as an InputStream
InputStream in = msg.sendGetMessage(props);
BufferedReader result = new BufferedReader(new
InputStreamReader(in));
// Read the first line of the response, which should be
// a string representation of the current time
while (result.readLine()!= null)
{
System.out.println(result.readLine());
draftInfo += result.readLine(); // ----->this
contains the exception info
}
// Close the InputStream
in.close();
// Return the retrieved time
return draftInfo;
}
catch (Exception e)
{
// If there was a problem, print to System.out
// (typically the Java console) and return null
e.printStackTrace();
return null;
}
}
}
------------------------------------------------------------ ----------------
---------------------
HTTPMessage relevant code.
public InputStream sendGetMessage(Properties args) throws IOException {
System.out.println("Sending Message");
String argString = ""; // default
if (args != null) {
System.out.println("Has Args");
argString = "?" + toEncodedString(args);
}
System.out.println(argString);
URL url = new URL(servlet.toExternalForm() + argString);
// Turn off caching
URLConnection con = url.openConnection();
con.setUseCaches(false);
return con.getInputStream();
}
------------------------------------------------------------ ----------------
----------------------
Servlet code
package Draft;
import java.io.*;
import java.sql.*;
import java.text.*;
import javax.servlet.*;
import javax.servlet.http.*;
public class DraftStatus extends HttpServlet {
public void doGet(HttpServletRequest req,HttpServletResponse res)
throws ServletException, IOException {
System.out.println("IN DOGET");
}
public void doPost(HttpServletRequest request, HttpServletResponse
response)
throws ServletException, IOException
{
doGet(request, response);
}
}
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