Java URL Post postData(String urlStr, String data)

Description

post Data

License

Apache License

Declaration

public static String postData(String urlStr, String data) 

Method Source Code

//package com.java2s;
//License from project: Apache License 

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.net.URL;
import java.net.URLConnection;

public class Main {
    private final static int CONNECT_TIMEOUT = 5000;
    private final static String DEFAULT_ENCODING = "UTF-8";

    public static String postData(String urlStr, String data) {
        return postData(urlStr, data, null);
    }/*ww w.  j a  v  a 2s.c o  m*/

    public static String postData(String urlStr, String data, String contentType) {
        BufferedReader reader = null;
        try {
            URL url = new URL(urlStr);
            URLConnection conn = url.openConnection();
            conn.setDoOutput(true);
            conn.setConnectTimeout(CONNECT_TIMEOUT);
            conn.setReadTimeout(CONNECT_TIMEOUT);
            if (contentType != null)
                conn.setRequestProperty("content-type", contentType);
            OutputStreamWriter writer = new OutputStreamWriter(conn.getOutputStream(), DEFAULT_ENCODING);
            if (data == null)
                data = "";
            writer.write(data);
            writer.flush();
            writer.close();

            reader = new BufferedReader(new InputStreamReader(conn.getInputStream(), DEFAULT_ENCODING));
            StringBuilder sb = new StringBuilder();
            String line = null;
            while ((line = reader.readLine()) != null) {
                sb.append(line);
                sb.append("\r\n");
            }
            return sb.toString();
        } catch (IOException e) {
            //            logger.error("Error connecting to " + urlStr + ": " + e.getMessage());
        } finally {
            try {
                if (reader != null)
                    reader.close();
            } catch (IOException e) {
            }
        }
        return null;
    }
}

Related

1. post(String url, Map parameters)
2. post(String url, String content)
3. post(String url, String content)
4. post(String urlstr, String[] params)
5. post(String urlString, HashMap values)
6. postData(URL base, String urlAddress, Map data)
7. postForString(URL url, String data)
8. postRequest(URLConnection conn, Map nameValuePairs)
9. postToUrl(String page)