async-http-client库是一个基于回调函数的Http异步通信客户端Android组件，是在Apache的HttpClient库的基础上开发构建而成的。
Eclipse使用：导入android-async-http-1.4.4.jar包 http://download.csdn.net/detail/dickyqie/9662215
AndroidStudio: gradle中引入 compile 'com.loopj.android:android-async-http:1.4.8'
功能特色
· 利用版4.3.6上游HttpClient代替Android提供defaulthttpclient
· 兼容AndroidAPI 23高
· 做异步HTTP请求处理的响应匿名回调
· HTTP请求发生UI线程之外
· 请求使用线程池限制并发资源使用情况
· get /后参数生成器（ RequestParams ）
· 多文件上传没有额外的第三方库
· JSON上传流没有额外的图书馆
· 处理循环和相对重定向
· 小的开销给你的应用程序只90kb一切
· 自动智能请求重试次数质量不一的移动连接优化
· 自动gzip响应解码速度超快的请求支持
· 二进制协议通信binaryhttpresponsehandler
· 内置的响应分析JSON与jsonhttpresponsehandler
· 节能反应直接进入文件fileasynchttpresponsehandler
· 大的持久性Cookie，保存cookie到你的应用程序的SharedPreferences
· 杰克逊JSON集成，gson或其他JSON序列化库（德）basejsonhttpresponsehandler
· 与SAX解析器支持saxasynchttpresponsehandler
· 语言和内容编码的支持，不仅仅是UTF-8
效果图：
案例如下：
1 public class MainActivity extends Activity implements OnClickListener {
2
3 public static AsyncHttpClient mHttpc = new AsyncHttpClient();
4
5 private TextView mTextView;
6
7 @Override
8 protected void onCreate(Bundle savedInstanceState) {
9 super.onCreate(savedInstanceState);
10 setContentView(R.layout.activity_asynchttpclict);
11 initView();
12 }
13
14 private void initView() {
15 findViewById(R.id.btn1).setOnClickListener(this);
16 findViewById(R.id.btn2).setOnClickListener(this);
17 findViewById(R.id.btn3).setOnClickListener(this);
18 findViewById(R.id.btn4).setOnClickListener(this);
19 mTextView=(TextView) findViewById(R.id.Text);
20 }
21
22 @Override
23 public void onClick(View v) {
24 switch (v.getId()) {
25 case R.id.btn1:
26 showHttpGet1();
27 break;
28 case R.id.btn2:
29 showHttpGet2("https://www.baidu.com");
30 break;
31 case R.id.btn3:
32 showHttpGet3();
33 break;
34 case R.id.btn4:
35 showHttpPost();
36 break;
37 case R.id.btn5:
38
39 case R.id.btn6:
40
41 default:
42 break;
43 }
44
45 }
46
47 private void showHttpGet1() {
48 AsyncHttpClient client = new AsyncHttpClient();
49 client.get("https://www.baidu.com", new AsyncHttpResponseHandler() {
50 @Override
51 public void onStart() { // 请求启动 请求前
52 }
53
54 @Override
55 public void onSuccess(int statusCode, Header[] headers,
56 byte[] responseBody) { // 请求成功
57 StringBuffer result = new StringBuffer("");
58 int length = responseBody.length;
59 for (int i = 0; i < length; i++) {
60 result.append((char) (responseBody[i] & 0xff));
61 }
62 Toast.makeText(MainActivity.this, "结果:" + result.toString(), 2)
63 .show();
64 mTextView.setText("结果:" +result.toString());
65 }
66
67 @Override
68 public void onFailure(int statusCode, Header[] headers,
69 byte[] responseBody, Throwable error) // 请求失败
70 {
71
72 }
73
74 public void onRetry() { // 重试
75
76 }
77
78 @Override
79 public void onProgress(int bytesWritten, int totalSize) { // 请求进度
80
81 }
82
83 @Override
84 public void onFinish() { // 请求完成
85
86 }
87 });
88 }
89
90 public void showHttpGet2(String uri) {
91 mHttpc.get(uri, null, new AsyncHttpResponseHandler() { // 请求失败
92 @Override
93 public void onFailure(int arg0, Header[] arg1, byte[] arg2,
94 Throwable arg3) {
95 }
96
97 @Override
98 public void onSuccess(int arg0, Header[] arg1,
99 byte[] responseBody) {
100 StringBuffer result = new StringBuffer("");
101 int length = responseBody.length;
102 for (int i = 0; i < length; i++) {
103 result.append((char) (responseBody[i] & 0xff));
104 }
105 Toast.makeText(MainActivity.this,
106 "结果:" + result.toString(), 2).show();
107 mTextView.setText("结果:" +result.toString());
108 }
109 });
110 }
111
112 private void showHttpGet3() {
113 AsyncHttpClient client = new AsyncHttpClient();
114 RequestParams params = new RequestParams();
115 params.put("q", "test");
116 params.put("showapi_appid", "11548");
117 // 当前时间
118 params.put("showapi_timestamp", "20160511151954");
119 params.put("showapi_sign", "bb1d15ab7ce646ec87cc89d684ca4bcb");
120 client.get("https://route.showapi.com/32-9", params,
121 new TextHttpResponseHandler() {
122 @Override
123 public void onSuccess(int statusCode, Header[] headers,
124 String response) {
125 Toast.makeText(MainActivity.this,
126 "结果:" + response.toString(), 2).show();
127 mTextView.setText("结果:" +response.toString());
128 }
129
130 @Override
131 public void onFailure(int statusCode, Header[] headers,
132 String responseBody, Throwable error) {
133 Log.i("ERROR", error.toString());
134 }
135 });
136 }
137
138 /*
139 * 获得字符串
140 */
141 public void showHttpPost() {
142 AsyncHttpClient client = new AsyncHttpClient();
143 RequestParams params = new RequestParams();
144 params.put("q", "test");
145 params.put("showapi_appid", "11548");
146 // 当前时间
147 params.put("showapi_timestamp", "20160511151954");
148 params.put("showapi_sign", "bb1d15ab7ce646ec87cc89d684ca4bcb");
149 client.post("https://route.showapi.com/32-9", params,
150 new AsyncHttpResponseHandler() {
151
152 @Override
153 public void onFailure(int arg0, Header[] arg1,
154 byte[] responseBody, Throwable arg3) {
155
156 }
157
158 @Override
159 public void onSuccess(int arg0, Header[] arg1,
160 byte[] responseBody) {
161 StringBuffer result = new StringBuffer("");
162 int length = responseBody.length;
163 for (int i = 0; i < length; i++) {
164 result.append((char) (responseBody[i] & 0xff));
165 }
166 Toast.makeText(MainActivity.this,
167 "结果:" + result.toString(), 2).show();
168 mTextView.setText("结果:" +result.toString());
169 }
170 });
171
172 }
173
174
175
176 /**
177 * 上传单个文件
178 */
179 private void showFile() {
180 File myFile = new File("filePath");// filePath--->文件路径
181 RequestParams params = new RequestParams();
182 try {
183 params.put("time", "20160511151954");
184 params.put("sign", "bb1d15ab7ce646ec87cc89d684ca4bcb");
185 params.put("filename", myFile);
186 AsyncHttpClient client = new AsyncHttpClient();
187 client.post("url", params, new AsyncHttpResponseHandler() {
188
189 @Override
190 public void onFailure(int arg0, Header[] arg1, byte[] arg2,
191 Throwable arg3) {
192
193 }
194
195 @Override
196 public void onSuccess(int arg0, Header[] arg1, byte[] arg2) {
197
198 }
199 });
200 } catch (FileNotFoundException e) {
201 e.printStackTrace();
202 }
203 }
204 /***
205 * 多个文件上传
206 *
207 * @param sendFilesPath
208 */
209 public void uploadFile(ArrayList<String> sendFilesPath) {
210 if (sendFilesPath.size() == 0)
211 return;
212
213 String strUploadFile = "";
214 AsyncHttpClient client = new AsyncHttpClient();
215 client.setURLEncodingEnabled(false);
216
217 RequestParams params = new RequestParams();
218 params.put("time", "20160511151954");
219 params.put("sign", "bb1d15ab7ce646ec87cc89d684ca4bcb");
220 // 批量上传
221 for (int i = 0; i < sendFilesPath.size(); i++) {
222 File myFile = new File(sendFilesPath.get(i));
223 try {
224 params.put(myFile.getName(), myFile);
225 } catch (FileNotFoundException e1) {
226 continue;
227 }
228 }
229
230 client.setTimeout(10000);
231 client.post(strUploadFile, params, new AsyncHttpResponseHandler() {
232
233 @Override
234 public void onFailure(int statusCode, Header[] headers,
235 byte[] responseBody, Throwable arg3) {
236 Log.i("Show", "上传失败");
237 }
238
239 @Override
240 public void onSuccess(int statusCode, Header[] headers,
241 byte[] responseBody) {
242 Log.i("Show", "上传成功");
243 }
244
245 @Override
246 public void onProgress(int bytesWritten, int totalSize) {
247 super.onProgress(bytesWritten, totalSize);
248 int count = (int) ((bytesWritten * 1.0 / totalSize) * 100);
249 // 上传进度显示
250 Log.i("Show", "上传进度显示:" + count);
251
252 }
253
254 @Override
255 public void onRetry(int retryNo) {
256 super.onRetry(retryNo);
257 // 返回重试次数
258 }
259 });
260 }
261
262 }
记得加网络权限
<uses-permission android:name="android.permission.INTERNET"/>
源码下载：
CSDN：http://download.csdn.net/detail/dickyqie/9702051