Question

What I try to do

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Hello Guys,

I try to create a login for my server, that I can access the data on it over my app. For this i created a Methode called 'public void doLogin(final String username, final String password)' . In this Methode I start a Thread in which I post the username and password to my server. Now to problem starts. When I do the post my server can’t handle my post which looks like this: '"username="+username+"&password="+password'.

To try if its a serverside problem (infact its not) I made a post over 'curl -d' with the same parameters and I get a response without any problems.

For your information the server runs on Ruby3

Question

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How do I need to change my Post to the server that it can handle the data I send. By the way the string I post must look exactly like that: '"username="+username+"&password="+password //this means username=LEUSER&password=LEPASS'

Please tell me what I need to change, some code snippets or tutorials would be great. Down here you find the importrent codesnippets of the doLogin Methode

Code

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public void doLogin(final String username, final String password) {

        Thread t = new Thread() {
            public void run() {

                String URL = "http://192.168.110.126:3000/sessions.json"; //für momentane testzwecke

                DefaultHttpClient client = new DefaultHttpClient();
                HttpResponse response;

                try {
                    HttpPost post = new HttpPost(URL);
                    StringEntity se = new StringEntity("username="+username+"&password="+password);
                    post.setEntity(se);

                    response = client.execute(post);

                    if (response != null) {

                    //response handling
                        handler.sendEmptyMessage(0);
                    }

                } catch (Exception e) {
                    e.printStackTrace();
                    Log.e("DataHandler", "URLConnection-Error" + e);
                }

            }

        };
        t.start();
    }

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Please Guide me Regarding This.

Answer 1

Your code looks like you are sending a html form. In fact curl adds a content-type (with value application/x-www-form-urlencoded) to the http header if you use the -d option.

So try to add the header field like this:

HttpPost post = new HttpPost(URL);
post.addHeader("Content-Type","application/x-www-form-urlencoded");
...