java.io.IOException: Server returned HTTP response code: 400 for URL:

[Anjali GauravSingh]

Hi Java Rancher's,
I am trying to implement SMS application in Java. I am facing an error. No idea How to fix it.

Exception in thread "main" java.io.IOException: Server returned HTTP response code: 400 for URL: http://www.way2sms.com/FirstServletsms?custid=
at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1245)
at helloworld.SMS.send(SMS.java:99)
at helloworld.SMS.main(SMS.java:125)

Java Result: 1
Appreciate your response on it in advance!!
Cheers,
Anjali

[Ernest Friedman-Hill]

The server is returning status code 400, which means it didn't understand your request -- i.e., the data you sent to the server was ill-formed. We can't tell you how to fix it, since you're not showing us any code.

[Anjali GauravSingh]

Thanks for your response ....
Please find the code mentioned below:

Anjali

package helloworld;

import java.io.*;
import java.net.*;
import java.util.Vector;

public class SMS
{
	public static void send(String uid, String pwd, String phone, String msg) throws IOException {

		if (uid == null || 0 == uid.length())
			throw new IllegalArgumentException("User ID should be present.");
		else
			uid = URLEncoder.encode(uid, "UTF-8");

		if (pwd == null || 0 == pwd.length())
			throw new IllegalArgumentException("Password should be present.");
		else
			pwd = URLEncoder.encode(pwd, "UTF-8");

		if (phone == null || 0 == phone.length())
			throw new IllegalArgumentException("At least one phone number should be present.");

		if (msg == null || 0 == msg.length())
			throw new IllegalArgumentException("SMS message should be present.");
		else
			msg = URLEncoder.encode(msg, "UTF-8");

		Vector<Long> numbers = new Vector<Long>();
		String pharr[];
		if (phone.indexOf(';') >= 0) {
			pharr = phone.split(";");
			for (String t : pharr) {
				try
				{
					numbers.add(Long.valueOf(t));
				}
				catch (NumberFormatException ex)
				{
					throw new IllegalArgumentException("Give proper phone numbers.");
				}
			}
		} else {
			try
			{
				numbers.add(Long.valueOf(phone));
			}
			catch (NumberFormatException ex)
			{
				throw new IllegalArgumentException("Give proper phone numbers.");
			}
		}

		if (0 == numbers.size())
			throw new IllegalArgumentException("At least one proper phone number should be present to send SMS.");

		/*==================================================================*/

		// Login
		String temp = "";
		String content = "username=" + uid + "&password=" + pwd;
		URL u = new URL("http://wwwd.way2sms.com/auth.cl");
		HttpURLConnection uc = (HttpURLConnection) u.openConnection();
		uc.setDoOutput(true);
		uc.setRequestProperty("User-Agent", "Mozilla/5.0 (Windows; U; Windows NT 6.0; en-US; rv:1.9.0.5) Gecko/2008120122 Firefox/3.0.5");
		uc.setRequestProperty("Content-Length", String.valueOf(content.length()));
		uc.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");
		uc.setRequestProperty("Accept", "*/*");
		uc.setRequestMethod("POST");
		uc.setInstanceFollowRedirects(false); // very important line :)
		PrintWriter pw = new PrintWriter(new OutputStreamWriter(uc.getOutputStream()), true);
		pw.print(content);
		pw.flush();
		pw.close();
		BufferedReader br = new BufferedReader(new InputStreamReader(uc.getInputStream()));
		while ( (temp = br.readLine()) != null ) {}
		String cookie = uc.getHeaderField("Set-Cookie");

		// Send SMS to each of the phone numbers
		u = null; uc = null;
		for (long num : numbers)
		{
			//content = "HiddenAction=instantsms&login=&pass=&custid=undefined&MobNo=" + num + "&textArea=" + msg;
			content = "custid=undefined&HiddenAction=instantsms&Action=custfrom50000&login=&pass=&MobNo=" + num + "&textArea=" + msg + "&qlogin1=Gmail+Id&qpass1=******&gincheck=on&ylogin1=Yahoo+Id&ypass1=******&yincheck=on";
			u = new URL("http://wwwd.way2sms.com/FirstServletsms?custid=");
			uc = (HttpURLConnection) u.openConnection();
			uc.setDoOutput(true);
			uc.setRequestProperty("User-Agent", "Mozilla/5.0 (Windows; U; Windows NT 6.0; en-US; rv:1.9.0.5) Gecko/2008120122 Firefox/3.0.5");
			uc.setRequestProperty("Content-Length", String.valueOf(content.getBytes().length));
			uc.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");
			uc.setRequestProperty("Accept", "*/*");
			uc.setRequestProperty("Cookie", cookie);
			uc.setRequestMethod("POST");
			uc.setInstanceFollowRedirects(false);
			pw = new PrintWriter(new OutputStreamWriter(uc.getOutputStream()), true);
			pw.print(content);
			pw.flush();
			pw.close();
			br = new BufferedReader(new InputStreamReader(uc.getInputStream()));
			while ( (temp = br.readLine()) != null ) {}
			br.close();
			u = null;
			uc = null;
		}

		// Logout
		u = new URL("http://wwwd.way2sms.com/jsp/logout.jsp");
		uc = (HttpURLConnection) u.openConnection();
		uc.setRequestProperty("User-Agent", "Mozilla/5.0 (Windows; U; Windows NT 6.0; en-US; rv:1.9.0.5) Gecko/2008120122 Firefox/3.0.5");
		uc.setRequestProperty("Accept", "*/*");
		uc.setRequestProperty("Cookie", cookie);
		uc.setRequestMethod("GET");
		uc.setInstanceFollowRedirects(false);
		br = new BufferedReader(new InputStreamReader(uc.getInputStream()));
		while ( (temp = br.readLine()) != null ) {}
		br.close();
		u = null;
		uc = null;
	}

        public static void main(String args[]) throws IOException{
                    SMS s = new SMS();
                    s.send("9999999999", "ABCDEFGH", "9999999999", "Testing");
        }
}




    

[Ernest Friedman-Hill]

Well, look at line 85 of this listing, where you create a URL:

new URL("http://wwwd.way2sms.com/FirstServletsms?custid=");

That's clearly not a valid URL, and it's exactly the one the error message calls out. You need custid to have a value, right?

[Anjali GauravSingh]

Well, I have checked it . but its not solving my issue. Do you have any idea.which url shud come and wll you please share more advice on this

[Rob Spoor]

Anjali GauravSingh wrote:shud

Use real words please.

wll you please share more advice on this

Put the number in the URL:

 u = new URL("http://wwwd.way2sms.com/FirstServletsms?custid=" + num);

[Anjali GauravSingh]

Below is the exception thrown. This problem is not fixed yet.

    

Dec 21, 2009 11:13:32 PM org.apache.coyote.http11.Http11BaseProtocol init
INFO: Initializing Coyote HTTP/1.1 on http-8081
Dec 21, 2009 11:13:32 PM org.apache.catalina.startup.Catalina load
INFO: Initialization processed in 781 ms
Dec 21, 2009 11:13:32 PM org.apache.catalina.core.StandardService start
INFO: Starting service Catalina
Dec 21, 2009 11:13:32 PM org.apache.catalina.core.StandardEngine start
INFO: Starting Servlet Engine: Apache Tomcat/5.5.25
Dec 21, 2009 11:13:32 PM org.apache.catalina.core.StandardHost start
INFO: XML validation disabled
Dec 21, 2009 11:13:33 PM org.apache.coyote.http11.Http11BaseProtocol start
INFO: Starting Coyote HTTP/1.1 on http-8081
Dec 21, 2009 11:13:33 PM org.apache.jk.common.ChannelSocket init
INFO: JK: ajp13 listening on /0.0.0.0:8009
Dec 21, 2009 11:13:33 PM org.apache.jk.server.JkMain start
INFO: Jk running ID=0 time=0/31  config=null
Dec 21, 2009 11:13:33 PM org.apache.catalina.startup.Catalina start
INFO: Server startup in 703 ms
Connection successful
java.io.IOException: Server returned HTTP response code: 400 for URL: http://wwwd.way2sms.com/FirstServletsms?custid=9999900000
	at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1196)
	at app.SMSDemo.send(SMSDemo.java:100)
	at app.SMS.doPost(SMS.java:40)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:710)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:269)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:174)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:117)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:108)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:151)
	at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:874)
	at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:665)
	at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:528)
	at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:81)
	at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:689)
	at java.lang.Thread.run(Thread.java:595)
*************failed due to some error in Login.java**********

Apreciate your comments in advance

anjali

[Ernest Friedman-Hill]

The stack trace doesn't tell us anything -- the original error message has all the information you need. The URL you're trying to use is not valid; the server doesn't like the inputs you're sending to it. I don't know anything about this servlet or what it expects. You need to learn about it so you can send the correct parameters. I don't think we can help you any more here; you're going to have to go do a little research on the proper way to post to that servlet. In other words, it's not a Java programming problem.

[Anjali GauravSingh]

Well, I am still trying to debug the application. Could not find the solution. URL is valid when i execute it from browser. Any advice is appreciable

Regards,
Anjali

[Ahsan Habib]

Anjali GauravSingh wrote:Well, I am still trying to debug the application. Could not find the solution. URL is valid when i execute it from browser. Any advice is appreciable

Regards,
Anjali

I had same issue as your's and ONLY work-around I found was to use apache commons http-client. Usng HttpURLConnection, I can not connect several web servers, and I use http-client from commons in that case. Still exploring the root cause of failure.

[Anjali GauravSingh]

Thanks for your advice but will you please elaborate your suggestion little bit more.

[Ahsan Habib]

Anjali GauravSingh wrote:Thanks for your advice but will you please elaborate your suggestion little bit more.

You can get lots of example on how to use HttpClient. Here I am attaching one sample code to do so. Hope it helps. You have to write one function (see comments)

  	public static String sendHttpRequestUsingApacheLib(Map<String, String> paramMap) throws Exception {
		String destUrl = paramMap.get("destUrl"); 
		if ( destUrl == null || destUrl.length() == 0 ) 
			throw new Exception("no value found for key 'destUrl'");
		
		HttpClient client 	= getHttpClientInstance(); //new HttpClient();
		PostMethod method 	= new PostMethod(destUrl);
		// content key found
		String content = paramMap.get("content");
		if ( content != null && content.length() > 0 ) {	// found content key
			method.setRequestEntity(
					new StringRequestEntity(content, 	// request content
											null, 		// content type (null, in this case)
											DEFAULT_ENCODING)); // encoding
		
		} else {	// no content key
			// generate NameValuePair to send HTTP request
			String keySetArray[] = paramMap.keySet().toArray(new String[0]); 
			NameValuePair[] data = new NameValuePair[keySetArray.length];
			// generate NameValuePair
			for(int i=0; i<keySetArray.length; i++) {
				System.err.println(keySetArray[i]+"="+paramMap.get(keySetArray[i]));
				data[i] = new NameValuePair(keySetArray[i], paramMap.get(keySetArray[i]));
			}
			method.setRequestBody(data); // set data into post method body
		}
		// Relay data to dest
		try {
			int status = client.executeMethod(method);
			if ( HttpStatus.SC_OK != status
				&& HttpStatus.SC_ACCEPTED != status ) {		
				throw new Exception("Http Method failed! Message=" + method.getStatusLine());
			}
			// parse the response
			InputStream inStream = method.getResponseBodyAsStream();				
			String xmlRes = parseISToString(inStream, false); // write method to get String from InputStream
			return xmlRes;				
		} catch (Exception e) {
			e.printStackTrace();
			throw new Exception(e.getClass()+" inside sendHttpRequestUsingApacheLib(). Message=" + e.getMessage()); // re-throw
		} finally {
			// Release the connection.
			method.releaseConnection();
		}
	}  

Right now I could not explain why HttpURLConnection gets 4xx errors, in spite of adding User-Agent property. I let you know if I find.">

[Ikenna Okonkwo]

Hi,

I experienced the same error while writing a similar sms class. After much running around and searching, i eventually found it was the proxy server at my office that was refusing connections.
I suggest you also look at this possibility in your own case.

Cheers!!!


--------------------------
oops! old thread... I didn't look at the dates. Hope my contribution still helps someone though!

[lefan zhang]

you may consider that use GET instead of POST and do NOT set Cookie atrribute. or you should check whether the cookie value is null or not.