Download from HTTP return InputStream - Java Network

Java examples for Network:Http

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Description

Download from HTTP return InputStream

Demo Code


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

public class Main {
    /**//from ww  w. ja v a 2s. c om
     * Download from HTTP, mustn't run in main thread, Caller need to apply permission themselves.
     * @param url
     * @return : null if there is some errors.
     */
    public static InputStream download(String url) {
        try {
            URL mUrl = new URL(url);
            HttpURLConnection conn = (HttpURLConnection) mUrl
                    .openConnection();
            conn.setConnectTimeout(10000);
            conn.setReadTimeout(10000);
            InputStream is = conn.getInputStream();
            return is;
            //        conn.setInstanceFollowRedirects(false);
        } catch (MalformedURLException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }

        return null;
    }
}

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