Android HTTP Request Method Summary

Recently compared the JDK used in Android HttpURLConnection and Apache Httpclien access network resources, summed up the HTTP protocol information. As follows:

JDK's httpurlconnection:

(1) Get request

Public String Executehttpget () {

String result = null;

URL url = null;

HttpURLConnection connection;

InputStreamReader in =null;

try{

url = new URL ("Http://10.0.2.2.:8888/data/get/?token=alexzhou");

Connection = (httpurlconnection) url.openconnection ();

in = new InputStream (Connection.getinputstream ());

BufferedReader BufferedReader = new BufferedReader (in);

StringBuffer str = new StringBuffer ();

String line =null;

while (line = Bufferedreader.readline ()) = null) {

Str.append (line);

}

}catch (Exception e) {

E.printstacktrace ();

}finally{

if (connection! = null) {

Connection.disconnect ();

} if (in = null) {

try{

In.close ();

}catch (IOException e) {

E.printstacktrace ();

}

}

}

return result;

}

(2) Post request

Public String Executehttppost () {

String result = null;

URL URL =null;

HttpURLConnection connection = null;

InputStream in = null;

try{

url = new URL ("Http://10.0.2.2:8888/data/post");

Connection = (httpurlconnection) url.openconnection ();

Connection.setdoinput (TRUE);

Connection.setdooutput (TRUE);

Connection.setrequestmethod ("POST");

Connection.setrequestproperty ("Content-type", "application/x-www-form-urlencoded");

Connection.setrequestproperty ("Charset", "utf-8");

DataOutputStream DOP = new DataOutputStream (Connection.getoutputstream ());

Dop.writebytes ("Token=alexzhou");

Dop.flush ();

Dop.close ();

in = new InputStreamReader (Connection.getinputstream ());

BufferedReader BufferedReader = new BufferedReader (in);

StringBuffer str = new StringBuffer ();

String line = null;

while (line = Bufferedreader.readline ()) = null) {

Str.append (line);

}

result = Str.tostring ();

}catch (Exception e) {

E.printstacktrace ()

}finally{

if (connection! = null) {

Connection.disconnect ();

}if (In! = null) {

try{

In.close ();

}catch (IOException e) {

E.printstacktrace ();

}

}

}

return result;

}

If you have Chinese in the parameter, you can encode and decode it in the following way:

urlencoder.encode ("Test", "Utf-8");urldecoder.decode ("Test", "Utf-8"); Apache's httpclient:
(1) Get request

Public String Executeget () { 

     String result = null;


BufferedReader reader = null;

   try{

HttpClient client = new Defaulthttpclient ();

HttpGet request = new HttpGet ();

 　　 　request.setURL(new URL("http://10.0.2.2:8888/data/get/?token=alexzhou"));

HttpResponse respone =client.execute (Request); 

    reader = newBufferedReader(newInputStreamReader(response.getEntity().getContent()));

    StringBuffer strBuffer = newStringBuffer("");

     String line = null;

     while((line = reader.readLine()) != null) {

          strBuffer.append(line);

   }

       result = strBuffer.toString();

   } catch(Exception e) {

           e.printStackTrace();

        } finally{

           if(reader != null) {

             try{

                 reader.close();

                 reader = null;

              } catch(IOException e) {

                 e.printStackTrace();

              }

            }

        }

        returnresult;

}

(2) Post mode

public String executePost() {               String result =  null ;
      BufferedReader reader =  null ;     try {


        HttpClient client = new DefaultHttpClient();

        HttpPost request = newHttpPost();

        request.setURI(newURI("http://10.0.2.2:8888/data/post/"));

        List<NameValuePair> postParameters = newArrayList<NameValuePair>();

        postParameters.add(newBasicNameValuePair("token", "alexzhou"));

        UrlEncodedFormEntity formEntity = newUrlEncodedFormEntity(postParameters);

        request.setEntity(formEntity);

        HttpResponse response = client.execute(request);

        reader = newBufferedReader(newInputStreamReader(response.getEntity().getContent()));

         StringBuffer strBuffer =  new StringBuffer( "" );                     String line =  null ;          while ((line = reader.readLine()) !=  null ) {               strBuffer.append(line);            }               result = strBuffer.toString();          }  catch (Exception e) {              e.printStackTrace();          }  finally {              if (reader !=  null ) {                  try {                      reader.close();                      reader =  null ;                  }  catch (IOException e) {                      e.printStackTrace();                  }              }          }          return result;      }

Android HTTP Request Method Summary