Hellu,
Please some HTTP response help as it drives me grazy.
I have a tiny java program (originaly it is part of the EJB but I extrated
it to a stand-alone program for testing) that opens a Url connection and
sends something through a Stream. It then reads the response from the input
stream.
The strange thing is that some a jsp, and asp give me an error when trying
to open the input stream when to get the respons. I am a bit confused and
don't know the exact requirements of the receiving side to not receive this
respons error.
When I make connection to an empty asp I don't have any error, but to an asp
that has some code, I do get an error. When calling my servlets I don't get
any error. it looks like the called page should return something in a proper
way otherwhise the receiving side doesn't understand it... or something like
that. Search a lot on the web..... nothing :(
Please some help on this.
Here is the code snap, used trying to solve the problem :
-----------------
public static void main(String[] args) {
HttpURLConnection connection=null;
DataOutputStream out=null;
if (args.length!=1) {
System.out.println("To less input parameters detected");
System.exit(-1);
}
String url=args[0];
try {
System.out.println("Trying to connect to "+url);
URL urlCon = new URL(url); // open connection with remote server
connection = (HttpURLConnection) urlCon.openConnection();
connection.setDoOutput(true); // indicate the we want to write output.
connection.setDoInput (true); // indicate the we expect input.
connection.setUseCaches (false); // no cache.
String bla="SOMETHING";
connection.setRequestProperty("CONTENT_LENGTH", "" + sms.length());
out = new DataOutputStream(connection.getOutputStream());
System.out.println("Trying to send: "+bla);
out.writeBytes (bla);
out.flush ();
out.close(); // free shared resources.
// Getting response code/string from remote server.
DataInputStream input;
InputStream resStrm = connection.getInputStream ();
// HERE IS WERE
COMPLAINS.
int res = connection.getResponseCode();
System.out.println("Return: "+res);
input = new DataInputStream (resStrm);
String str;
while (null != ((str = input.readLine())))
System.out.println (str);
-----------------
The error:
--------------
java.io.FileNotFoundException: http://10.17.17.213/m2u/interfaces/g
aap.asp at sun.net.www.protocol.http.HttpURLConnection.getInputStre
am(Unknown Source) at java.net.HttpURLConnection.getResponseCode(Unknown
Source)
at connect2Url.main(connect2Url.java:49)
---------------
The test jsp to receive it, that doesn't work:
--------------------
System.out.println("Receiving something");
BufferedReader in = new BufferedReader(new
InputStreamReader(request.getInputStream()));
String inputLine = "";
String totLine = "";
while ((inputLine = in.readLine()) != null) {
totLine = totLine + inputLine;
}
in.close(); // close input stream.
System.out.println("Received: "+totLine);
response.setContentType("text/html");
response.setStatus(200);
--------------------
When I call an empty asp page it all goes well ... :(
Regards,
Ed Bras
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