Question

EDITED: Java httpPost into .asp form

I am making an application that will display some information from the website, which is .asp, to access some of the data I must login. How can I post my credentials(login, password) to the server and get the page in return. I also think that there a lot of redirects on the way, when I login. I have no idea about asp. What I am doing, I am just posting the username, password to the server and I can retrieve the source code of that page with my posted information in the right place. But what do I do next?
I thought That there could be one code snippet that can be used with any .asp website engine.

EDIT: Ok, page code is received
Authentication form has been of IIS type.

when specifuing nameValuePairs use html input (name, value) pairs.

Login form:

<form method="post" id="form1" name="form1" action="">
<input id="txtUser" name="txtUser" type="text" size="13" value="" />
<input id="txtPassword" name="txtPassword" type="password" size="13" value="" />
<input id="BLogin" name="BLogin" type="submit" value="Log in"  />
<input type="checkbox" id="chkSave" name="chkSave"/> 
</form>

some JAVA:

HttpPost httppost = new HttpPost("WEBSITE WITH LOGIN PAGE (Ex: www.qwerty.asd/login.asp)");
try {
List<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>(2);
nameValuePairs.add(new BasicNameValuePair("txtUser", "YOUR LOGIN NAME"));
nameValuePairs.add(new BasicNameValuePair("txtPassword", "YOUR PASSWORD"));
nameValuePairs.add(new BasicNameValuePair("BLogin", "Log in"));
httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs));
// Execute HTTP Post Request
response = httpclient.execute(httppost);
entity = response.getEntity();
System.out.println("Login form get: " + response.getStatusLine());
if (entity != null) {
entity.consumeContent();
}
System.out.println("Post logon cookies:");
cookies = httpclient.getCookieStore().getCookies();
if (cookies.isEmpty()) {
System.out.println("None");
} else {
for (int i = 0; i < cookies.size(); i++) {
System.out.println("- " + cookies.get(i));
// httpclient.getCookieStore().addCookie(cookies.get(i));
}
}

Getting headers:

Header[] headers = response.getAllHeaders();
                for(int i=0; i<headers.length; i++){
                    //System.out.println(headers[i]);
                    Header h = headers[i];
                    System.out.println(h.getName());
                    System.out.println(h.getValue());
                }

Proceed to any other page within same service:

HttpPost request2 = new HttpPost(
                    "www.qwerty.asd/information.asp");

            response = httpclient.execute(request2);

            String responseBody2 = EntityUtils.toString(response.getEntity());
            //System.out.println(responseBody2);

            if (entity != null) {
                entity.consumeContent();
            }

For Android Webview to display the web page:

        WebView.loadData(responseBody2, "text/html", "utf-8");

Answer 1

.asp has nothing to do with Android directly.

You are looking to make a standard HTTP REST request using a WebView.

Also, here is a page that includes many common tasks in Android as well as links to many tutorials, articles and code samples : http://developer.android.com/resources/faq/commontasks.html

EDIT: Many might say use a standard alert dialog with a login button BUT I do not believe in the alert dialogs because they have issues. To see an example, create a simple dialog that does nothing and change the screen orientation… it might seem fine but if you look at the LogCat you will see it leaks the activity.

Therefore, I recommend creating a regular Activity and using the android:theme=”@android:style/Theme.Dialog” in the activity tag in your manifest to make the activity look like a dialog.