OKHttp源码学习--HttpURLConnection HttpClient OKHttp Get and post Demo用法对比

1.HttpURLConnection

 public class HttpURLConnectionGetAndPost {
     private String urlAddress = "xxxx";

     public void doGet(String method, String s) throws IOException {
         String getUrl = urlAddress + method + "?sex=" + s;

         URL url = new URL(getUrl);
         HttpURLConnection httpURLConnection = (HttpURLConnection) url.openConnection();
         httpURLConnection.connect();
         if (httpURLConnection.getResponseCode() == 200) {
             StringBuffer sb = new StringBuffer();
             InputStream in = httpURLConnection.getInputStream();
             BufferedReader bufferReader = new BufferedReader(new InputStreamReader(in));
             String readLine = "";

             while ((readLine = bufferReader.readLine()) != null) {
                 sb.append(readLine);
             }
             in.close();
             bufferReader.close();
             httpURLConnection.disconnect();

             Log.d("test", sb.toString());

         } else {
             Log.d("test", "get failed");
         }

     }

     public void doPost(String method, String s) throws IOException {

         URL url = new URL(urlAddress + method);
         HttpURLConnection httpURLConnection = (HttpURLConnection) url.openConnection();
         httpURLConnection.setDoInput(true);
         httpURLConnection.setDoOutput(true);
         httpURLConnection.setReadTimeout(10000);
         httpURLConnection.setConnectTimeout(10000);
         httpURLConnection.setRequestMethod("POST");
         httpURLConnection.setUseCaches(false);
         httpURLConnection.setRequestProperty("content-type", "");
         httpURLConnection.setRequestProperty("content-type", "");
         httpURLConnection.connect();
         DataOutputStream dataOutputStream = new DataOutputStream(httpURLConnection.getOutputStream());

         String content = "sex=" + s;

         dataOutputStream.writeBytes(content);
         dataOutputStream.flush();
         dataOutputStream.close();

         if (httpURLConnection.getResponseCode() == 200) {
             InputStream inputStream = httpURLConnection.getInputStream();
             BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(inputStream));
             String readLine = "";
             StringBuffer sb = new StringBuffer();
             while ((readLine = bufferedReader.readLine()) != null) {
                 sb.append(readLine);
             }
             bufferedReader.close();
             inputStream.close();
             httpURLConnection.disconnect();
             Log.d("test", sb.toString());
         } else {
             Log.d("test", "post failed");
         }
     }
 }

2.HttpClient

 public class HttpClientGetAndPost {
     private String urlAddress = "xxxx";
     private void doGet(String method, String s){

         String getUrl = urlAddress+ method  + "?sex= "+ s;
         HttpGet httpGet = new HttpGet(getUrl);
         try {
             HttpResponse httpResponse = new DefaultHttpClient().execute(httpGet);
             if(httpResponse.getStatusLine().getStatusCode() ==200){
                 String result  = EntityUtils.toString(httpResponse.getEntity());
                 Log.d("test","result="+result);
             }else{

                 Log.d("test","get failed");
             }
         } catch (ClientProtocolException e) {
             // TODO Auto-generated catch block
             e.printStackTrace();
         } catch (IOException e) {
             // TODO Auto-generated catch block
             e.printStackTrace();
         }

       ///  HttpPost
     }

     private void doPost(String method, String s) throws ClientProtocolException, IOException{
         HttpPost httpPost = new HttpPost(urlAddress+method);
         List<NameValuePair> parms = new ArrayList<NameValuePair>();
         parms.add(new BasicNameValuePair("sex",s)  );
         httpPost.setEntity(new UrlEncodedFormEntity(parms,HTTP.UTF_8));
         HttpResponse httpResponse = new DefaultHttpClient().execute(httpPost);
         if(httpResponse.getStatusLine().getStatusCode() ==200){
             String result  = EntityUtils.toString(httpResponse.getEntity());
             Log.d("test","result="+result);
         }else{

             Log.d("test","post failed");
         }
     }
 }

3. OKHttp3

 public class OkHttpGetAndPost {

 private String urlAddress = "xxxx";
 private OkHttpClient okHttpClient = new OkHttpClient();

 private void doGet(String method, String s) throws IOException {
 String url = urlAddress + method + "?sex=" + s;
 Request request = new Request.Builder().url(url).get().build();
 Response respone = okHttpClient.newCall(request).execute();
 if (respone.isSuccessful()) {
 Log.d("test", respone.body().string());
 } else {
 Log.d("test", "get failed");
 }
 }

 private void doPost(String method, String s) {
 FormBody formBody = new FormBody.Builder().add("sex", s).build();
 RequestBody body = RequestBody.create(MediaType.parse("application/json; charset=utf-8"), "{\"sex\",\""+s+"\"}");
 Request request = new Request.Builder().url(urlAddress + method).post(body).build();
 okHttpClient.newCall(request).enqueue(new Callback() {
 @Override
 public void onResponse(Call arg0, Response arg1) throws IOException {
 Log.d("test", arg1.body().string());
 }
 @Override
 public void onFailure(Call arg0, IOException arg1) {
 Log.d("test", "post failed");
 }
 });
 }
 }

由以上demo可以看出，OKHttp使用最简单方便，代码书写量少，而且网络请求高效。

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