What is openConnection () method used for?

The openConnection() method returns a java. net. URLConnection, an abstract class whose subclasses represent the various types of URL connections. If you connect to a URL whose protocol is HTTP, the openConnection() method returns an HttpURLConnection object.

What is the use of HttpURLConnection in Java?

The Java HttpURLConnection class is http specific URLConnection. It works for HTTP protocol only. By the help of HttpURLConnection class, you can retrieve information of any HTTP URL such as header information, status code, response code etc.

Is HttpURLConnection deprecated?

Deprecated. it is misplaced and shouldn’t have existed.

What is openConnection in Java?

The openConnection() method of URL class opens the connection to specified URL and URLConnection instance that represents a connection to the remote object referred by the URL. It should be noted that a URLConnection instance does not establish the actual network connection on the creation.

Can HttpURLConnection work with https?

Class HttpsURLConnection. HttpsURLConnection extends HttpURLConnection with support for https-specific features. See http://www.w3.org/pub/WWW/Protocols/ and RFC 2818 for more details on the https specification. This class uses HostnameVerifier and SSLSocketFactory .

Is HttpURLConnection thread safe?

it’s not thread safe. you shouldn’t cache/share a connection. just create a new connection for each request. there is certainly a little overhead in creating new connections, but it is very small, you shouldn’t worry about it.

Is HttpURLConnection asynchronous?

A simple, lightweight, asynchronous HTTP client built on top of Java’s HttpURLConnection . Please feel free to report any issues.

Can HttpURLConnection be used with https?

net. HttpURLConnection. It can cover Https addresses also, because HttpsURLConnection extends this.

Do I need to disconnect HttpURLConnection?

Yes you need to close the inputstream first and close httpconnection next. As per javadoc.

How do I authenticate a URL in Java?

The setAuthenticator(Authenticator auth) is a method of Java HttpURLConnection class. This method is used to set the authentication request through HTTP protocol. If no authentication is sent then default authentication is used.