Java tutorial
/******************************************************************************* * Copyright 2011, 2012, 2013 fanfou.com, Xiaoke, Zhang * * 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.fanfou.app.opensource.http; import java.io.IOException; import java.util.List; import org.apache.http.HttpResponse; import org.apache.http.client.HttpClient; import org.apache.http.client.methods.HttpGet; import org.apache.http.client.methods.HttpRequestBase; import android.content.Context; import android.graphics.Bitmap; import android.graphics.BitmapFactory; import android.text.TextUtils; import android.util.Log; import com.fanfou.app.opensource.AppContext; import com.fanfou.app.opensource.util.NetworkHelper; /** * @author mcxiaoke * @version 1.0 2011.05.02 * @version 1.1 2011.05.03 * @version 1.2 2011.05.03 * @version 1.3 2011.05.04 * @version 1.4 2011.05.05 * @version 1.5 2011.10.25 * @version 2.0 2011.11.03 * @version 2.1 2011.11.04 * @version 3.0 2011.11.09 * @version 3.1 2011.11.15 * @version 3.2 2011.11.24 * @version 3.3 2011.11.28 * @version 3.4 2011.11.29 * @version 4.0 2011.12.01 * @version 4.1 2011.12.02 * @version 4.2 2011.12.05 * @version 4.3 2011.12.07 * @version 5.0 2011.12.12 * */ public class SimpleClient { private static final String TAG = SimpleClient.class.getSimpleName(); private final Context mAppContext; public SimpleClient(final Context context) { this.mAppContext = context.getApplicationContext(); } public HttpResponse exec(final SimpleRequest cr) throws IOException { if (TextUtils.isEmpty(cr.url)) { throw new IOException("request url must not be empty or null."); } signRequest(cr); return executeImpl(cr.getHttpRequest()); } private final HttpResponse executeImpl(final HttpRequestBase request) throws IOException { if (request == null) { throw new IOException("http request is null"); } final HttpClient client = getHttpClient(); if (AppContext.DEBUG) { Log.d(SimpleClient.TAG, "[Request] " + request.getRequestLine().toString()); } final HttpResponse response = client.execute(request); if (AppContext.DEBUG) { Log.d(SimpleClient.TAG, "[Response] " + response.getStatusLine().toString()); } return response; } public final HttpResponse get(final String url) throws IOException { return executeImpl(new HttpGet(url)); } public final Bitmap getBitmap(final String url) throws IOException { final HttpResponse response = get(url); final int statusCode = response.getStatusLine().getStatusCode(); if (AppContext.DEBUG) { Log.d(SimpleClient.TAG, "getBitmap() statusCode=" + statusCode + " [" + url + "]"); } if (statusCode == 200) { return BitmapFactory.decodeStream(response.getEntity().getContent()); } return null; } protected HttpClient getHttpClient() { return NetworkHelper.createHttpClient(this.mAppContext); } public final HttpResponse post(final String url, final List<SimpleRequestParam> params) throws IOException { return executeImpl(SimpleRequest.newBuilder().url(url).params(params).post().build().getHttpRequest()); } protected void signRequest(final SimpleRequest cr) { } }