POST and Get Http Method

Hi,

I need some asistance.
I am writing http code for POST and GET method. Below are the 2 APIs that will be call to the server.

APIs
1)http://ipaddress/platform/Login?user=test&password=test
2)http://ipaddress/platform/reportdata

The first API using POST method and the second API using GET method.

The second API should returns me XML data. But it returns me saiding that I am not authenticated.

Is there a way to verify that I am sucessfully being authenticated so that I can use the second API.

So Is there any parts that I miss out or had I make any mistakes?? Below is my code.

public class PostTestExample {

public static void main(String args[]) {
	  String POST_CONTENT_TYPE = "application/x-www-form-urlencoded";
	  BufferedReader br = null;
	  String LOGIN_USER_NAME = "test";
	  String LOGIN_PASSWORD = "test";

String LOGIN_USER_NAME_PARAMETER_NAME = "user";
	  String LOGIN_PASSWORD_PARAMETER_NAME = "password";
	  String TARGET_URL = "http://ipaddress/platform/Login";
	        
	    DataOutputStream dataOutputStream = null;
	    
	    
		try {
			String encodedLoginUserName = URLEncoder.encode(LOGIN_USER_NAME, "UTF-8");
		    String encodedLoginPassword = URLEncoder.encode(LOGIN_PASSWORD, "UTF-8");
		    String content = LOGIN_USER_NAME_PARAMETER_NAME +"="
		    	        + encodedLoginUserName + "&" + LOGIN_PASSWORD_PARAMETER_NAME + "=" + encodedLoginPassword;

HttpURLConnection connection = (HttpURLConnection)(new URL(TARGET_URL).openConnection());         
			connection.setDoInput(true);
			connection.setDoOutput(true);
			connection.setRequestProperty("Content-Type", POST_CONTENT_TYPE);
			connection.setRequestMethod("POST");
			   dataOutputStream = new DataOutputStream(connection.getOutputStream());

// throws IOException
	            dataOutputStream.writeBytes(content);
	            dataOutputStream.flush();
	            dataOutputStream.close();
			
			 BufferedReader rd = new BufferedReader(new InputStreamReader(connection.getInputStream()));
			    String line;
			    
			    StringBuilder response = new StringBuilder();
			    while ((line = rd.readLine()) != null) {
			        // Process line...
			    	System.err.println(line);
			    }

HttpClient client = new HttpClient();
			GetMethod getMethod = new GetMethod("http://ipaddress/platform/reportdata");
			
			  int returnCode = client.executeMethod(getMethod);
			 // FileWriter fw = new FileWriter ( "test.html" );
		     //  BufferedWriter  bw = new BufferedWriter ( fw );
			 
			  if(returnCode == HttpStatus.SC_NOT_IMPLEMENTED) {
					System.err.println("The Post method is not implemented by this URI");
					getMethod.getResponseBodyAsString();
				
			  }else{

String readLine;	
					br = new BufferedReader(new InputStreamReader(getMethod.getResponseBodyAsStream()));
					
			  	while(((readLine = br.readLine()) != null)) {
						System.err.println(readLine);
						//writeToFile(readLine);
						//bw.write(readLine);
				}
			  	
			  br.close( );
			  }
  
			  rd.close();
			  connection.disconnect();
		
		}
		catch( IOException e ){
			// handle the error here
			e.printStackTrace();
		} 
  }
   
}

Please advice. Thanks.

If you used HttpClient for all requests, you could turn on its cookie support (which is, I assume, how authentication is controlled after a login).

And welcome to the Ranch!

Ulf Dittmer wrote:If you used HttpClient for all requests, you could turn on its cookie support (which is, I assume, how authentication is controlled after a login).

Apologize i dont quite understand your statement, can you show me where to change. Thanks.

Or you saiding that the http://ipaddress/platform/Login => should be using HttpCLient method follow by a Postmethod ? like what I did for the second API.

Rob Spoor wrote:And welcome to the Ranch!

Thanks hopefully I can get all the helps in here.

ss sk wrote:

Ulf Dittmer wrote:If you used HttpClient for all requests, you could turn on its cookie support (which is, I assume, how authentication is controlled after a login).

Apologize i dont quite understand your statement, can you show me where to change. Thanks.

You're using HttpUrlConnection for the POST method, but HttpCLient for the GET method. If instead you were using HttpClient for both methods, you could use its cookie support for tracking any login cookies that may be set by the login (assuming cookies are used for that, which you need to find out).

Also, you need to change your display name -which is invalid- or your account will be closed soon.

Ulf Dittmer wrote:

ss sk wrote:

Ulf Dittmer wrote:If you used HttpClient for all requests, you could turn on its cookie support (which is, I assume, how authentication is controlled after a login).

Apologize i dont quite understand your statement, can you show me where to change. Thanks.

You're using HttpUrlConnection for the POST method, but HttpCLient for the GET method. If instead you were using HttpClient for both methods, you could use its cookie support for tracking any login cookies that may be set by the login (assuming cookies are used for that, which you need to find out).

Also, you need to change your display name -which is invalid- or your account will be closed soon.

O ok. So both should use the HttpClient method instead. Any issues will be back again.

thanks once again.