Java Utililty Methods URL Download

List of utility methods to do URL Download

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Description

The list of methods to do URL Download are organized into topic(s).

Method

booleandownloadToFile(String url, File file)
Downloads from a given URL to a given File 
BufferedInputStream in = null;
FileOutputStream fout = null;
try {
    in = new BufferedInputStream(new URL(url).openStream());
    fout = new FileOutputStream(file);
    final byte data[] = new byte[1024];
    int count;
    while ((count = in.read(data, 0, 1024)) != -1) {
...
voiddownloadToFile(URL source, File dest)
Retrieves a file from a web server and writes it to disk. 
final InputStream input = source.openStream();
byte[] buffer = new byte[4096];
int n = -1;
final OutputStream output = new FileOutputStream(dest);
while ((n = input.read(buffer)) != -1) {
    output.write(buffer, 0, n);
input.close();
...
voiddownloadToFile(URL url, File downloadFile)
download To File 
long startTime = System.currentTimeMillis();
System.out.println(String.format("Begin download from %s...\n", url));
url.openConnection();
InputStream reader = url.openStream();
File parentFile = downloadFile.getParentFile();
if (!parentFile.exists())
    parentFile.mkdirs();
FileOutputStream writer = new FileOutputStream(downloadFile);
...
voiddownloadToFile(URL url, File file)
Download a file from a URL. 
InputStream is = null;
OutputStream os = null;
try {
    URLConnection conn = url.openConnection();
    conn.setUseCaches(false);
    byte[] buffer = new byte[2048];
    is = conn.getInputStream();
    os = new FileOutputStream(file);
...
voiddownloadToLocalFile(File targetFile, URL requestedURL, Proxy proxy)
download To Local File 
InputStream is = open(requestedURL, proxy);
targetFile.createNewFile();
FileOutputStream out = new FileOutputStream(targetFile);
byte[] buf = new byte[1024]; 
int bytesRead;
while ((bytesRead = is.read(buf)) != -1) {
    out.write(buf, 0, bytesRead);
close(is);
out.close();
StringdownloadToString(String url)
download To String 
URL website = null;
try {
    website = new URL(url);
} catch (MalformedURLException e) {
    System.out.println("Couldn't connect to " + url);
    return null;
URLConnection connection = null;
...
voiddownloadURL(String addr, File outFile)
download URL 
downloadURL(new URL(addr), outFile);
voiddownloadURL(String url, String outFile)
download URL 
write((new URL(url)).openStream(), outFile);
voiddownloadURL(URL url, File file)
Download the contents of the given URL to the given file 
URLConnection conn = url.openConnection();
InputStream stream = conn.getInputStream();
FileOutputStream fos = new FileOutputStream(file);
byte[] buffer = new byte[1024];
int read = 0;
while ((read = stream.read(buffer)) != -1) {
    fos.write(buffer, 0, read);
StringdownloadURL(URL url, String localPath)
download URL 
InputStream reader = url.openStream();
String[] path = url.getPath().split("/");
String filename = path[path.length - 1];
File fullpath = new File(localPath, filename);
FileOutputStream writer = new FileOutputStream(fullpath);
byte[] buffer = new byte[DOWNLOAD_BUFFER_SIZE];
int totalBytesRead = 0;
int bytesRead = 0;
...