How To Execute HTTP POST Requests in Android

The org.apache.http andAndroidHttpClient are part of a deprecated class.You should migrate your code to the HttpURLConnection classes.It is possible to request that a specific web server receive and store data from a request form.The data is stored in name-value pairs.Email, usernames, and password are examples of pairs.

Step 1: Permissions for internet are added to the manifest.

Theandroid manifest provides important information to the system that determines device compatibility and access to featuresThe following line is required to provide internet access.uses-permission:name

Step 2: A try block can be created.

A try statement is an exception handler that will prevent the program from crashing if it isn't able to perform an action.If it is not possible to establish a connection, a try statement will catch an exception.There is a new Java method that you can add this to.Try to enter statements that can cause exceptions.

Step 3: There are URL objects.

Java is an object-oriented language.An object is an instance of a class.Data is sent and received over the internet.Begin your new method by creating a URL object and assigning it aURL for the HttpURLConnection object to connect to.To make it easier to catch exceptions, establish the URL and HttpURLConnection objects outside of the try block.URL url is a new URL and the client is null.

Step 4: The request method should be set.

To send information to the server, you must set the HttpURLConnection object's type to post and use setDoOutput.The setRequestProperty function requires two elements, a key with a known request from the server and a value that is contained within the corresponding key.The Accept-Encoding request headers are used to disabled automatic decompression.SetRequestMethod(POST); setRequestProperty(Key); setDoOutput(true);

Step 5: Send the stream to the server.

You must request the output stream from the server in order to be able to write to it.It is a good idea to let the server know how large the content will be.When the body length is known, setFixedLengthStreamingMode(int) is the best method.Not using either of the previous methods causes the HttpURLConnection object to buffer the complete body in memory before being transmitted.client.setChunkedStreamingMode(0)

Step 6: Don't catch any exceptions.

After the try statement, use the catch block to check for an exception for input and output with IOException, catch a URL error with the MalformedURL exception, and check if the URL does not provide a response in time.catch(MalformedURLException error) //Handles an incorrect URL.Handles input and output errors.

Step 7: Don't go to the URL.

The URL will need to be disconnected after you are done with it.It is important to check that you are connected to a URL.Make sure the connection isn't null.client.disconnect

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