Version of of this class had some bugs so I corrected them and here is the latest version 🙂 Enjoy!
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package moz.http; import java.net.*; import java.io.*; import java.util.ArrayList; import java.util.Enumeration; import java.util.Hashtable; import java.util.Iterator; import java.util.List; import java.util.Map; import java.util.Set; import java.util.Map.Entry; import org.apache.http.client.HttpClient; import org.apache.commons.*; import android.util.Log; /** * HTTP Request class * * You can use this class and distribute it as long as you give proper credit * and place and leave this notice intact :). Check my blog for updated * version(s) of this class (http://moazzam-khan.com) * * Usage Examples: * * Get Request * -------------------------------- * HttpData data = HttpRequest.get("http://example.com/index.php?user=hello"); * System.out.println(data.content); * * Post Request * -------------------------------- * HttpData data = HttpRequest.post("http://xyz.com", "var1=val&var2=val2"); * System.out.println(data.content); * Enumeration<String> keys = dat.cookies.keys(); // cookies * while (keys.hasMoreElements()) { * System.out.println(keys.nextElement() + " = " + * data.cookies.get(keys.nextElement() + "rn"); * } * Enumeration<String> keys = dat.headers.keys(); // headers * while (keys.hasMoreElements()) { * System.out.println(keys.nextElement() + " = " + * data.headers.get(keys.nextElement() + "rn"); * } * * Upload a file * -------------------------------- * ArrayList<File> files = new ArrayList(); * files.add(new File("/etc/someFile")); * files.add(new File("/home/user/anotherFile")); * * Hashtable<String, String> ht = new Hashtable<String, String>(); * ht.put("var1", "val1"); * * HttpData data = HttpRequest.post("http://xyz.com", ht, files); * System.out.println(data.content); * * @author Moazzam Khan */ public class HttpRequest { /** * HttpGet request * * @param sUrl * @return */ public static HttpData get(String sUrl) { HttpData ret = new HttpData(); String str; StringBuffer buff = new StringBuffer(); try { URL url = new URL(sUrl); URLConnection con = url.openConnection(); BufferedReader in = new BufferedReader(new InputStreamReader(con.getInputStream())); while ((str = in.readLine()) != null) { buff.append(str); } ret.content = buff.toString(); //get headers Map<String, List<String>> headers = con.getHeaderFields(); Set<Entry<String, List<String>>> hKeys = headers.entrySet(); for (Iterator<Entry<String, List<String>>> i = hKeys.iterator(); i.hasNext();) { Entry<String, List<String>> m = i.next(); Log.w("HEADER_KEY", m.getKey() + ""); ret.headers.put(m.getKey(), m.getValue().toString()); if (m.getKey().equals("set-cookie")) ret.cookies.put(m.getKey(), m.getValue().toString()); } } catch (Exception e) { Log.e("HttpRequest", e.toString()); } return ret; } /** * HTTP post request * * @param sUrl * @param ht * @return * @throws Exception */ public static HttpData post(String sUrl, Hashtable<String, String> ht) throws Exception { String key; StringBuffer data = new StringBuffer(); Enumeration<String> keys = ht.keys(); while (keys.hasMoreElements()) { key = keys.nextElement(); data.append(URLEncoder.encode(key, "UTF-8")); data.append("="); data.append(URLEncoder.encode(ht.get(key), "UTF-8")); data.append("&"); } return HttpRequest.post(sUrl, data.toString()); } /** * HTTP post request * * @param sUrl * @param data * @return */ public static HttpData post(String sUrl, String data) { StringBuffer ret = new StringBuffer(); HttpData dat = new HttpData(); String header; try { // Send data URL url = new URL(sUrl); URLConnection conn = url.openConnection(); conn.setDoOutput(true); OutputStreamWriter wr = new OutputStreamWriter(conn.getOutputStream()); wr.write(data); wr.flush(); // Get the response Map<String, List<String>> headers = conn.getHeaderFields(); Set<Entry<String, List<String>>> hKeys = headers.entrySet(); for (Iterator<Entry<String, List<String>>> i = hKeys.iterator(); i.hasNext();) { Entry<String, List<String>> m = i.next(); Log.w("HEADER_KEY", m.getKey() + ""); dat.headers.put(m.getKey(), m.getValue().toString()); if (m.getKey().equals("set-cookie")) dat.cookies.put(m.getKey(), m.getValue().toString()); } BufferedReader rd = new BufferedReader(new InputStreamReader(conn.getInputStream())); String line; while ((line = rd.readLine()) != null) { ret.append(line); } wr.close(); rd.close(); } catch (Exception e) { Log.e("ERROR", "ERROR IN CODE:"+e.getMessage()); } dat.content = ret.toString(); return dat; } /** * Post request (upload files) * @param sUrl * @param files * @return HttpData */ public static HttpData post(String sUrl, ArrayList<File> files) { Hashtable<String, String> ht = new Hashtable<String, String>(); return HttpRequest.post(sUrl, ht, files); } /** * Post request (upload files) * @param sUrl * @param params Form data * @param files * @return */ public static HttpData post(String sUrl, Hashtable<String, String> params, ArrayList<File> files) { HttpData ret = new HttpData(); try { String boundary = "*****************************************"; String newLine = "rn"; int bytesAvailable; int bufferSize; int maxBufferSize = 4096; int bytesRead; URL url = new URL(sUrl); HttpURLConnection con = (HttpURLConnection) url.openConnection(); con.setDoInput(true); con.setDoOutput(true); con.setUseCaches(false); con.setRequestMethod("POST"); con.setRequestProperty("Connection", "Keep-Alive"); con.setRequestProperty("Content-Type", "multipart/form-data;boundary="+boundary); DataOutputStream dos = new DataOutputStream(con.getOutputStream()); //dos.writeChars(params); //upload files for (int i=0; i<files.size(); i++) { Log.i("HREQ", i+""); FileInputStream fis = new FileInputStream(files.get(i)); dos.writeBytes("--" + boundary + newLine); dos.writeBytes("Content-Disposition: form-data; " + "name="file_"+i+"";filename="" + files.get(i).getPath() +""" + newLine + newLine); bytesAvailable = fis.available(); bufferSize = Math.min(bytesAvailable, maxBufferSize); byte[] buffer = new byte[bufferSize]; bytesRead = fis.read(buffer, 0, bufferSize); while (bytesRead > 0) { dos.write(buffer, 0, bufferSize); bytesAvailable = fis.available(); bufferSize = Math.min(bytesAvailable, maxBufferSize); bytesRead = fis.read(buffer, 0, bufferSize); } dos.writeBytes(newLine); dos.writeBytes("--" + boundary + "--" + newLine); fis.close(); } // Now write the data Enumeration keys = params.keys(); String key, val; while (keys.hasMoreElements()) { key = keys.nextElement().toString(); val = params.get(key); dos.writeBytes("--" + boundary + newLine); dos.writeBytes("Content-Disposition: form-data;name="" + key+""" + newLine + newLine + val); dos.writeBytes(newLine); dos.writeBytes("--" + boundary + "--" + newLine); } dos.flush(); BufferedReader rd = new BufferedReader( new InputStreamReader(con.getInputStream())); String line; while ((line = rd.readLine()) != null) { ret.content += line + "rn"; } //get headers Map<String, List<String>> headers = con.getHeaderFields(); Set<Entry<String, List<String>>> hKeys = headers.entrySet(); for (Iterator<Entry<String, List<String>>> i = hKeys.iterator(); i.hasNext();) { Entry<String, List<String>> m = i.next(); Log.w("HEADER_KEY", m.getKey() + ""); ret.headers.put(m.getKey(), m.getValue().toString()); if (m.getKey().equals("set-cookie")) ret.cookies.put(m.getKey(), m.getValue().toString()); } dos.close(); rd.close(); } catch (MalformedURLException me) { } catch (IOException ie) { } catch (Exception e) { Log.e("HREQ", "Exception: "+e.toString()); } return ret; } } |
You will also need the class below:
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package moz.http; import java.util.Hashtable; public class HttpData { public String content; public Hashtable cookies = new Hashtable(); public Hashtable headers = new Hashtable(); } |