What is the difference between URLConnection and HttpURLConnection?
What is the difference between URLConnection and HttpURLConnection?
2 Answers. URLConnection is the base class. HttpURLConnection is a derived class which you can use when you need the extra API and you are dealing with HTTP or HTTPS only. HttpsURLConnection is a ‘more derived’ class which you can use when you need the ‘more extra’ API and you are dealing with HTTPS only.
How do I get HttpURLConnection response code?
URL url = new URL(“http://example.com”); HttpURLConnection connection = (HttpURLConnection)url. openConnection(); connection. setRequestMethod(“GET”); connection. connect(); int code = connection.
Should I disconnect HttpURLConnection?
Do not call HttpURLConnection. disconnect() . You need to read all of the data in the input stream before you close it so that the underlying TCP connection gets cached.
What is getResponseCode?
The getResponseCode is a method of Java HttpURLConnection class. This method is used to get the status code from the HTTP response message. For example, if the status line is HTTP/1.0 200 OK. Then it will return 200, or if the status line is HTTP/1.0 401 unauthorized, then it will return 401.
Can I use HttpURLConnection for https?
1 Answer. HttpsURLConnection extends HttpURLConnection , and your connection is an instance of both. When you call openConnection() the function actually returns an HttpsURLConnection . However, because the https object extends the http one, your connection is still an instance of an HttpURLConnection .
What is HttpURLConnection in Java?
HttpURLConnection class is an abstract class directly extending from URLConnection class. It includes all the functionality of its parent class with additional HTTP specific features. HttpsURLConnection is another class which is used for the more secured HTTPS protocol.
Can HttpURLConnection be used with https?
Can I reuse HttpURLConnection?
By default, up to 5 such sockets are reused (per destination). You can increase this pool size by setting the http. maxConnections property. If using HttpURLConnection , do not disconnect your connections after you read their response, consider increasing the socket pool size, and be careful of related problems.
Which method is used to close HttpURLConnection?
If the response has no body, that method returns an empty stream. Disconnect. Once the response body has been read, the HttpURLConnection should be closed by calling disconnect() . Disconnecting releases the resources held by a connection so they may be closed or reused.
Which is the following used in HttpURLConnection?
HttpURLConnection uses the GET method by default. It will use POST if setDoOutput(true) has been called. Other HTTP methods ( OPTIONS , HEAD , PUT , DELETE and TRACE ) can be used with setRequestMethod(String) .
Is HttpURLConnection secure?
In the same sense your HttpURLConnection is actually an HttpsURLConnection that DOES support SSL/TLS.
How do I use HttpURLConnection?
Below are the steps we need to follow for sending Java HTTP requests using HttpURLConnection class.
- Create URL object from the GET/POST URL String.
- Call openConnection() method on URL object that returns instance of HttpURLConnection.
- Set the request method in HttpURLConnection instance, default value is GET.
