gistfile1.java

package me.ryanw.launch.me.ryanw.utils;

import java.io.*;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;
import java.net.URLEncoder;

public class RESTful {

    public final static RESTful INSTANCE = new RESTful();
    private RESTful() {}

    public static String httpGet(String urlString) throws IOException {
        URL url = null;
        try {
            url = new URL(urlString);
        } catch (MalformedURLException e) {
            e.printStackTrace();
        }
        HttpURLConnection connection = (HttpURLConnection) url.openConnection();

        if (connection.getResponseCode() != 200) {
            throw new IOException(connection.getResponseMessage());
        }

        BufferedReader read = new BufferedReader (new InputStreamReader(connection.getInputStream()));
        StringBuilder stringBuilder = new StringBuilder();
        String line;

        while ((line = read.readLine()) != null) {
            stringBuilder.append(line);
        }

        read.close();

        connection.disconnect();
        return stringBuilder.toString();
    }

    public static String httpPost(String urlString, String[] name, String[] value) throws IOException {
        URL url = null;
        try {
            url = new URL(urlString);
        } catch (MalformedURLException e) {
            e.printStackTrace();
        }

        HttpURLConnection connection = (HttpURLConnection) url.openConnection();
        connection.setRequestMethod("POST");
        connection.setDoOutput(true);
        connection.setDoInput(true);
        connection.setUseCaches(false);
        connection.setAllowUserInteraction(false);
        connection.setRequestProperty("Content-Type", "application/x/www/form/urlencoded");

        OutputStream out = connection.getOutputStream();
        Writer writer = new OutputStreamWriter(out, "UTF-8");

        for (int i = 0; i < name.length; i++) {
            writer.write(name[i]);
            writer.write("=");
            writer.write(URLEncoder.encode(name[i], "UTF-8"));
            writer.write("&");
        }
        writer.close();
        out.close();

        if (connection.getResponseCode() != 200) {
            throw new IOException(connection.getResponseMessage());
        }

        BufferedReader read = new BufferedReader (new InputStreamReader(connection.getInputStream()));
        StringBuilder stringBuilder = new StringBuilder();
        String line;

        while((line = read.readLine()) != null) {
            stringBuilder.append(line);
        }
        read.close();
        connection.disconnect();

        return stringBuilder.toString();
    }
}