Submits a HTTP GET request to a given url passing in additional data with the request. - Android Network

Android examples for Network:HTTP Request

  1. HOME
  2. Android
  3. Network
  4. HTTP Request

Description

Submits a HTTP GET request to a given url passing in additional data with the request.

Demo Code


//package com.java2s;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.io.UnsupportedEncodingException;
import java.net.HttpURLConnection;
import java.net.URL;

public class Main {
    /**/*w w  w .ja  v a  2  s.  co m*/
     * Submits a GET request to a given url passing in additional data with the request.
     * 
     * @param myurl         The url to submit to.
     * @param jsonData      The data to pass along with the GET request.
     * @return            The response as a string.
     * @throws IOException   Exception thrown on any failure to read from or write to url.
     */
    public static String getFromUrlWithData(String myurl, String jsonData)
            throws IOException {
        InputStream is = null;
        OutputStream os = null;
        HttpURLConnection conn = null;
        try {
            URL url = new URL(myurl);
            conn = (HttpURLConnection) url.openConnection();
            conn.setReadTimeout(5000 /* milliseconds */);
            conn.setConnectTimeout(3000 /* milliseconds */);
            conn.setRequestMethod("GET");
            conn.setDoInput(true);
            conn.setDoOutput(true);
            conn.setRequestProperty("Content-Type", "application/json");
            conn.connect();

            // Send request
            // http://stackoverflow.com/questions/20020902/android-httpurlconnection-how-to-set-post-data-in-http-body On Oct 23, 2014
            byte[] outputInBytes = jsonData.getBytes("UTF-8");
            os = conn.getOutputStream();
            os.write(outputInBytes);
            os.close();

            // Get Response
            //int response = conn.getResponseCode();
            // Log.d(DEBUG_TAG, "The response is for post is: " + response);
            is = conn.getInputStream();

            // Convert the InputStream into a string
            String contentAsString = readResponse(is);
            // Log.d(DEBUG_TAG, contentAsString);
            return contentAsString;

            // Makes sure that the InputStream is closed after the app is
            // finished using it.
        } finally {
            if (is != null) {
                is.close();
            }
            if (os != null) {
                os.close();
            }
            if (conn != null) {
                conn.disconnect();
            }
        }
    }

    /**
     * Converts the input stream from a url connection into a response string.
     * 
     * Reference: <a href="http://stackoverflow.com/questions/11766878/sending-files-using-post-with-httpurlconnection">http://stackoverflow.com/questions/11766878/sending-files-using-post-with-httpurlconnection</a> on Oct 23, 2014, User Mihai Todor
     * 
     * @param stream                  The stream to read from.
     * @return                        The response as a string.
     * @throws IOException               Exception thrown on any failure to read from stream.
     * @throws UnsupportedEncodingException   Expceptino thrown on any non-recognized encoding type. 
     */
    private static String readResponse(InputStream stream)
            throws IOException, UnsupportedEncodingException {
        BufferedReader responseStreamReader = new BufferedReader(
                new InputStreamReader(stream));
        String line = "";
        StringBuilder stringBuilder = new StringBuilder();
        while ((line = responseStreamReader.readLine()) != null) {
            stringBuilder.append(line).append("\n");
        }
        responseStreamReader.close();

        String response = stringBuilder.toString();
        return response;
    }
}

Related Tutorials