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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