Google貌似在6.0版本里面刪除了HttpClient相關API，對於這個行爲不做評價。爲了更好的在應對網絡訪問，學習下okhttp還是蠻必要的
依賴包okhttp-2.6.0.jar，okio-1.6.0.jar
單例模式
public static OkHttpUtil getInstance() {
if (null == instance) {
instance = new OkHttpUtil();
}
return instance;
}
public OkHttpUtil() {
if (null == mOkHttpClient) {
mOkHttpClient = new OkHttpClient();
mOkHttpClient.setReadTimeout(15, TimeUnit.SECONDS);
mOkHttpClient.setWriteTimeout(15, TimeUnit.SECONDS);
mOkHttpClient.setConnectTimeout(15, TimeUnit.SECONDS);
}
}
public interface OkRequestListener {
void onSuccess(String response);
void onError(String errorMsg);
}
public interface OkDownloadRequestListener {
void onSuccess(String response);
void onErrorCode(int code, String errorMsg);
}
public void connectPost(String url, Map<String, String> params, final OkRequestListener requestListener) throws IOException {
FormEncodingBuilder fe = new FormEncodingBuilder();
String method = "";
for (Map.Entry<String, String> entry : params.entrySet()) {
if("method".equals(entry.getKey())){
method = entry.getValue();
}
fe.add(entry.getKey(), entry.getValue());
}
Log.e(Utility.LOG_TAG, "method>>>>>>>>>>>>>>>>>>>>>>>>>"+method);
RequestBody formBody = fe.build();
Builder requestBuilder = new Request.Builder();
requestBuilder.tag(method);
Request requests = requestBuilder.url(url).post(formBody).build();
Call call = mOkHttpClient.newCall(requests);
Response response;
response = call.execute();// 同步請求
if (response.isSuccessful()) {
requestListener.onSuccess(response.body().string());
} else {
requestListener.onError(response.body().string());
}
/*
* //請求加入調度 //異步請求 call.enqueue(new Callback() {
*
* @Override public void onFailure(Request request, IOException e) {
* requestListener.onError(e.toString()); }
*
* @Override public void onResponse(final Response response) throws
* IOException { requestListener.onSuccess(response.body().string()); }
* });
*/
}
public void connectGet(String url, Map<String, String> params, final OkRequestListener requestListener) throws IOException {
if (params != null) {
StringBuffer sb = new StringBuffer();
sb.append(url).append("?");
for (Map.Entry<String, String> entry : params.entrySet()) {
sb.append(entry.getKey()).append("=").append(entry.getValue()).append("&");
}
url = sb.substring(0, sb.length() - 1);
}
final Request request = new Request.Builder().url(url).build();
Call call = mOkHttpClient.newCall(request);
Response response;
response = call.execute();// 同步請求
if (response.isSuccessful()) {
requestListener.onSuccess(response.body().string());
} else {
requestListener.onError(response.body().string());
}
/*
* //請求加入調度 異步請求 call.enqueue(new Callback() {
*
* @Override public void onFailure(Request request, IOException e) {
* requestListener.onError(e.toString()); }
*
* @Override public void onResponse(final Response response) throws
* IOException { requestListener.onSuccess(response.body().string()); }
* });
*/
}
public void Uploadpost(String url, Map<String, String> params, final String filepath, final OkRequestListener requestListener) throws IOException {
File file = new File(filepath);
MultipartBuilder mb = new MultipartBuilder();
mb.type(MultipartBuilder.FORM);
for (Map.Entry<String, String> entry : params.entrySet()) {
mb.addFormDataPart(entry.getKey(), entry.getValue());
}
mb.addFormDataPart("file", file.getName(), RequestBody.create(MediaType.parse(guessMimeType(file.getName())), file));
RequestBody requestBody = mb.build();
Request request = new Request.Builder().url(url).post(requestBody).build();
Call call = mOkHttpClient.newCall(request);
Response response;
response = call.execute();// 同步請求
if (response.isSuccessful()) {
requestListener.onSuccess(response.body().string());
} else {
requestListener.onError(response.body().string());
}
/*
* //請求加入調度 異步請求 call.enqueue(new Callback() {
*
* @Override public void onFailure(Request request, IOException e) {
* requestListener.onError(e.toString()); }
*
* @Override public void onResponse(final Response response) throws
* IOException { requestListener.onSuccess(response.body().string()); }
* });
*/
}
public void downloadFile(final String url, final OkDownloadRequestListener requestListener) throws IOException {
final Request request = new Request.Builder().url(url).build();
final Call call = mOkHttpClient.newCall(request);
Response response;
response = call.execute();// 同步請求
if (response.isSuccessful()) {
InputStream is = null;
byte[] buf = new byte[2048];
int len = 0;
FileOutputStream fos = null;
try {
is = response.body().byteStream();
File file = new File(MyApplication.filePath + Utility.stringToMd5(url) + Utility.getFileExtension(url));
fos = new FileOutputStream(file);
while ((len = is.read(buf)) != -1) {
fos.write(buf, 0, len);
}
fos.flush();
// 如果下載文件成功，第一個參數爲文件的絕對路徑
Log.e(Utility.LOG_TAG, "下載文件成功。。。。。");
requestListener.onSuccess(file.getAbsolutePath());
} catch (IOException e) {
Log.e(Utility.LOG_TAG, "下載文件失敗。。。。。" + response.body().string());
requestListener.onErrorCode(response.code(), response.body().string());
} finally {
try {
if (is != null)
is.close();
} catch (IOException e) {
}
try {
if (fos != null)
fos.close();
} catch (IOException e) {
}
}
} else {
Log.e(Utility.LOG_TAG, "下載文件失敗。。。。。" + response.body().string() + response.code());
requestListener.onErrorCode(response.code(), response.body().string());
}
// 異步加載
/*
* call.enqueue(new Callback() {
*
* @Override public void onFailure(final Request request, final
* IOException e) { requestListener.onError(response.body().string()); }
*
* @Override public void onResponse(Response response) { InputStream is
* = null; byte[] buf = new byte[2048]; int len = 0; FileOutputStream
* fos = null; try { is = response.body().byteStream(); File file = new
* File(destFileDir, getFileName(url)); fos = new
* FileOutputStream(file); while ((len = is.read(buf)) != -1) {
* fos.write(buf, 0, len); } fos.flush(); //如果下載文件成功，第一個參數爲文件的絕對路徑
* requestListener.onSuccess(file.getAbsolutePath()); } catch
* (IOException e) { requestListener.onError(response.body().string());
* } finally { try { if (is != null) is.close(); } catch (IOException e)
* { } try { if (fos != null) fos.close(); } catch (IOException e) { } }
*
* } });
*/
}
private String guessMimeType(String path) {
FileNameMap fileNameMap = URLConnection.getFileNameMap();
String contentTypeFor = fileNameMap.getContentTypeFor(path);
if (contentTypeFor == null) {
contentTypeFor = "application/octet-stream";
}
return contentTypeFor;
}
這是全部代碼，直接使用就可以了。