Tasks | Level 10 | Lesson 4

takes a URL string, turns it into a Java URL object - then prints the different parts of that URL URL = a Java object for a web address the program breaks the address into parts like protocol, host, path, query, and fragment Output: URL is https://www.amrood.com/index.htm?language=en#j2se protocol is https authority is www.amrood.com file name is /index.htm?language=en host is www.amrood.com path is /index.htm port is -1 default port is 443 query is language=en ref is j2se

Main points to remember: url.openConnection() // opens the connection. setRequestMethod("POST") // makes it a POST request. setDoOutput(true) // allows sending data. getOutputStream() // is where you write the POST data. getResponseCode() // gets the server status. getInputStream() // reads the server response. Simple Memory pattern: Open connection Set POST Turn output on Write data Get response code Read response another .... Quick memory version: getHttpClient() gets the client new HttpPost(url) creates the POST request URLEncodedUtils.parse(...) splits the parameter string into form data setEntity(...) puts the data into the request client.execute(request) sends it getStatusLine().getStatusCode() gets the response code Pattern to remember: Create client Create POST Parse params Set entity Execute request Read response

Too small amount introduction into topic

first task... to see the post data in RequestBins inspect window (just use the default settings here, post data will show up under trigger, export, event) you'll have to tell the server there you're a html form (using the http header).

        connection.setRequestProperty("Content-Type", "application/x-www-form-urlencoded; charset=UTF-8");

I didn't like these tasks, I found them much more difficult compared with the information provided up to them.

URL properties: do not re-throw exception, otherwise it will not pass validator

For second task dowloand from Maven org.apache.httpcomponents:httpclient:4.5 or higher