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@seasu
Created May 16, 2013 02:44
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Java using HttpURLConnection to get or post
private String excuteGet(String desiredUrl)
throws Exception {
URL url = null;
BufferedReader reader = null;
StringBuilder stringBuilder;
try {
// create the HttpURLConnection
url = new URL(desiredUrl);
HttpURLConnection connection = (HttpURLConnection) url.openConnection();
// just want to do an HTTP GET here
connection.setRequestMethod("GET");
// uncomment this if you want to write output to this url
//connection.setDoOutput(true);
// give it 15 seconds to respond
connection.setReadTimeout(15 * 1000);
connection.connect();
// read the output from the server
reader = new BufferedReader(new InputStreamReader(connection.getInputStream()));
stringBuilder = new StringBuilder();
String line = null;
while ((line = reader.readLine()) != null) {
stringBuilder.append(line + "\n");
}
return stringBuilder.toString();
} catch (Exception e) {
e.printStackTrace();
throw e;
} finally {
// close the reader; this can throw an exception too, so
// wrap it in another try/catch block.
if (reader != null) {
try {
reader.close();
} catch (IOException ioe) {
ioe.printStackTrace();
}
}
}
}
/*
* The urlParameters is a URL encoded string.
*
* String urlParameters = "fName=" + URLEncoder.encode("???", "UTF-8") +
* "&lName=" + URLEncoder.encode("???", "UTF-8")
*/
public static String excutePost(String targetURL, String urlParameters) {
URL url;
HttpURLConnection connection = null;
try {
//Create connection
url = new URL(targetURL);
connection = (HttpURLConnection) url.openConnection();
connection.setRequestMethod("POST");
connection.setRequestProperty("Content-Type",
"application/x-www-form-urlencoded");
connection.setRequestProperty("Content-Length", ""
+ Integer.toString(urlParameters.getBytes().length));
connection.setRequestProperty("Content-Language", "en-US");
connection.setUseCaches(false);
connection.setDoInput(true);
connection.setDoOutput(true);
//Send request
DataOutputStream wr = new DataOutputStream(
connection.getOutputStream());
wr.writeBytes(urlParameters);
wr.flush();
wr.close();
//Get Response
InputStream is = connection.getInputStream();
BufferedReader rd = new BufferedReader(new InputStreamReader(is));
String line;
StringBuilder response = new StringBuilder();
while ((line = rd.readLine()) != null) {
response.append(line);
response.append('\r');
}
rd.close();
return response.toString();
} catch (Exception e) {
e.printStackTrace();
return null;
} finally {
if (connection != null) {
connection.disconnect();
}
}
}
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