load File from URL and return InputStream - Java Network

Java examples for Network:URL

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Description

load File from URL and return InputStream

Demo Code


//package com.java2s;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.ProtocolException;
import java.net.URL;

public class Main {
    public static void main(String[] argv) throws Exception {
        String urlString = "java2s.com";
        System.out.println(loadFile(urlString));
    }// ww w  .  j  a  v a2 s .  co  m

    public static InputStream loadFile(String urlString) {
        InputStream inuputStream = null;
        try {
            URL url = new URL(urlString);

            //create the new connection
            HttpURLConnection urlConnection = (HttpURLConnection) url
                    .openConnection();

            //set up some things on the connection
            urlConnection.setRequestMethod("GET");
            urlConnection.setDoOutput(true);

            //and connect!
            urlConnection.connect();

            //this will be used in reading the data from the internet
            inuputStream = urlConnection.getInputStream();

        } catch (MalformedURLException e) {
            e.printStackTrace();
        } catch (ProtocolException e) {
            e.printStackTrace();
        } catch (FileNotFoundException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }
        if (inuputStream != null)
            return inuputStream;
        else
            return null;
    }
}

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