HTTP Post Request using Apache Commons

Demonstrates an HTTP Post using the Apache Commons HTTP library.

Required Libraries:

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Example Source Code

1  import java.io.IOException;  2 import java.io.InputStream;  3 import java.util.ArrayList;  4 import java.util.List;  5   6 import org.apache.commons.io.IOUtils;  7 import org.apache.http.HttpEntity;  8 import org.apache.http.HttpResponse;  9 import org.apache.http.client.ClientProtocolException; 10 import org.apache.http.client.HttpClient; 11 import org.apache.http.client.entity.UrlEncodedFormEntity; 12 import org.apache.http.client.methods.HttpPost; 13 import org.apache.http.impl.client.DefaultHttpClient; 14 import org.apache.http.message.BasicNameValuePair; 15  16 public class ExampleHttpPost 17 { 18   public static void main(String args[]) throws ClientProtocolException, IOException 19   { 20     HttpPost httppost = new HttpPost("https://stanfordwho.stanford.edu/SWApp/Search.do"); 21  22     List<BasicNameValuePair> parameters = new ArrayList<BasicNameValuePair>(); 23     parameters.add(new BasicNameValuePair("search", "jsproch")); 24     parameters.add(new BasicNameValuePair("filters", "closed")); 25     parameters.add(new BasicNameValuePair("affilfilter", "everyone")); 26     parameters.add(new BasicNameValuePair("btnG", "Search")); 27      28     httppost.setEntity(new UrlEncodedFormEntity(parameters)); 29  30     HttpClient httpclient = new DefaultHttpClient(); 31     HttpResponse httpResponse = httpclient.execute(httppost); 32     HttpEntity resEntity = httpResponse.getEntity(); 33      34     // Get the HTTP Status Code 35     int statusCode = httpResponse.getStatusLine().getStatusCode(); 36  37     // Get the contents of the response 38     InputStream input = resEntity.getContent(); 39     String responseBody = IOUtils.toString(input); 40     input.close(); 41      42     // Print the response code and message body 43     System.out.println("HTTP Status Code: "+statusCode); 44     System.out.println(responseBody); 45   } 46 }

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