Android Open Source - NVS H T T P Client

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License

The source code is released under:

Apache License

Java Source Code

package com.jmuenster.server;
//  w  ww. j a  v  a  2  s. c  o  m
import org.apache.http.HttpResponse;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpDelete;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.client.methods.HttpPut;
import org.apache.http.entity.StringEntity;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.message.BasicHeader;
import org.apache.http.protocol.HTTP;
import org.json.JSONObject;

/**
 * @author Julian Munster
 *
 */
public class HTTPClient {

  // httpClient field holds an http client instance
  private HttpClient httpclient;
  
  /**
   * The Constructor initiates the httpclient field.
   */
  public HTTPClient () {
    httpclient = new DefaultHttpClient();
  }
  
  /**
   * This method connects to the server and sends it a
   * get (post) call. This can have any parameter passed 
   * in as part of the call to cut down on the notes returned.
   * Then it returns the response of the get.
   * 
   * @param url the url of the HttpGet call
   * @param search a search string
   * @return response
   * 
   */
  public HttpResponse httpGet(String url, String search) {
        HttpResponse response = null;
    try {
          HttpGet httpget = new HttpGet(url+search);
      httpget.setHeader("Content-Type", "application/x-www-form-urlencoded");
          response = httpclient.execute(httpget);
        } catch (Exception e) {e.printStackTrace();}
        return response;
  }
  
  /**
   * This method connects to the server and sends it a
   * post call. This must have every parameter passed in as 
   * part of the call even if they are an empty String or 0.
   * Then it returns the response of the post.
   * 
   * @param url the url of the HttpPost call
   * @param j the json object that gets attached
   * @return response
   * 
   */
  public HttpResponse httpPost(String url, String j) {
        HttpResponse response = null;
        try {
      StringEntity s = new StringEntity(j.toString());
      s.setContentEncoding(new BasicHeader(HTTP.CONTENT_TYPE, "application/json"));
          HttpPost httppost = new HttpPost(url);
      httppost.setHeader("Content-Type", "application/x-www-form-urlencoded");
      httppost.setEntity(s);
            response = httpclient.execute(httppost);
        } catch (Exception e) {e.printStackTrace();}
        return response;
  }
  
  /**
   * This method connects to the server and sends it a
   * put call. This must have every parameter passed in 
   * that needs to be updated and the unique_id field. 
   * Then it returns the response of the put.
   * 
   * @param url the url of the HttpPut call
   * @param j the json object that gets attached
   * @return response
   * 
   */
  public HttpResponse httpPut(String url, JSONObject j) {
        HttpResponse response = null;
        try {
      StringEntity s = new StringEntity(j.toString());
      s.setContentEncoding(new BasicHeader(HTTP.CONTENT_TYPE, "application/json"));
            HttpPut httpput = new HttpPut(url);
            httpput.setHeader("Content-Type", "application/x-www-form-urlencoded");
            httpput.setEntity(s);
            response = httpclient.execute(httpput);
        } catch (Exception e) {e.printStackTrace();}
        return response;
  }
  
  /**
   * This method connects to the server and sends it a
   * delete call. This must have the unique_id field.
   * Then it returns the response of the delete.
   * 
   * @param url the url of the HttpDelete call
   * @return response
   * 
   */
  public HttpResponse httpDelete(String url, String id) {
        HttpResponse response = null;
        try {
            HttpDelete httpdelete = new HttpDelete(url+id);
            httpdelete.setHeader("Content-Type", "application/x-www-form-urlencoded");
            response = httpclient.execute(httpdelete);
        } catch (Exception e) {e.printStackTrace();}
        return response;
  }
}

Java Source Code List

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