Java tutorial
/** * PHR_NodeJSWebService * * Copyright (C) 1999-2013 Photon Infotech Inc. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package com.photon.phresco.Screens; import java.io.IOException; import java.io.InputStream; import org.apache.http.HttpEntity; import org.apache.http.HttpResponse; import org.apache.http.client.methods.HttpGet; import org.apache.http.client.methods.HttpPost; import org.apache.http.entity.ByteArrayEntity; import org.apache.http.impl.client.DefaultHttpClient; import org.apache.http.params.BasicHttpParams; import org.apache.http.params.HttpConnectionParams; import org.apache.http.params.HttpParams; import org.apache.http.protocol.HTTP; import org.json.JSONObject; /** * * HTTP Request class * * @author viral_b */ public class HttpRequest { private static final String TAG = "HttpRequest ***** "; private static final int TIME_OUT = 5000; /** * HttpGet request * * @param sUrl * @return */ protected HttpRequest() { } /** * Get the content from web url, and parse it using json parser * * @param sURL * : URL to hit to get the json content * @return InputStream * @throws IOException */ public static InputStream get(String sURL) throws IOException { InputStream is = null; HttpParams httpParameters = new BasicHttpParams(); // Set the timeout in milliseconds until a connection is established. int timeoutConnection = TIME_OUT; HttpConnectionParams.setConnectionTimeout(httpParameters, timeoutConnection); // Set the default socket timeout (SO_TIMEOUT) // in milliseconds which is the timeout for waiting for data. int timeoutSocket = TIME_OUT; HttpConnectionParams.setSoTimeout(httpParameters, timeoutSocket); HttpGet httpGet = new HttpGet(sURL); DefaultHttpClient httpClient = new DefaultHttpClient(httpParameters); HttpResponse httpResponse = httpClient.execute(httpGet); HttpEntity entity = httpResponse.getEntity(); is = entity.getContent(); return is; } /** * Send the JSON data to specified URL and get the httpResponse back * * @param sURL * @param jObject * @return InputStream * @throws IOException */ public static InputStream post(String sURL, JSONObject jObject) throws IOException { HttpResponse httpResponse = null; InputStream is = null; HttpPost httpPostRequest = new HttpPost(sURL); HttpEntity entity; httpPostRequest.setHeader("Accept", "application/json"); httpPostRequest.setHeader(HTTP.CONTENT_TYPE, "application/json"); httpPostRequest.setEntity(new ByteArrayEntity(jObject.toString().getBytes("UTF-8"))); HttpParams httpParameters = new BasicHttpParams(); // Set the timeout in milliseconds until a connection is established. int timeoutConnection = TIME_OUT; HttpConnectionParams.setConnectionTimeout(httpParameters, timeoutConnection); // Set the default socket timeout (SO_TIMEOUT) // in milliseconds which is the timeout for waiting for data. int timeoutSocket = TIME_OUT; HttpConnectionParams.setSoTimeout(httpParameters, timeoutSocket); DefaultHttpClient httpClient = new DefaultHttpClient(httpParameters); httpResponse = httpClient.execute(httpPostRequest); if (httpResponse != null) { entity = httpResponse.getEntity(); is = entity.getContent(); } return is; } }