Java Utililty Methods URL Read

List of utility methods to do URL Read

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Description

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

Method

StringreadUrl(String urlString)
reads content from URL by making 
StringBuffer result = new StringBuffer();
BufferedReader br = null;
InputStream inputStream = null;
try {
    URL url = new URL(urlString);
    URLConnection urlConnection = url.openConnection();
    inputStream = urlConnection.getInputStream();
    br = new BufferedReader(new InputStreamReader(inputStream));
...
byte[]readURL(URL url)
read URL 
URLConnection urlconnection = url.openConnection();
InputStream inputstream = urlconnection.getInputStream();
int i = urlconnection.getContentLength();
if (i <= 0)
    i = inputstream.available();
if (i <= 0)
    return null;
byte abyte0[] = new byte[i];
...
StringreadUrl(URL url)
Read the contents of a URL as text 
StringBuilder sb = new StringBuilder();
URLConnection con = url.openConnection();
con.setConnectTimeout(1000);
con.setReadTimeout(2000);
InputStream in = con.getInputStream();
String enc = con.getHeaderField("Content-Type");
enc = enc.substring(enc.indexOf("charset=") > 0 ? enc.indexOf("charset=") + 8 : enc.length());
if (enc.length() < 3)
...
StringreadUrl(URL url, String[]... headers)
read Url 
BufferedReader reader = null;
StringBuilder buffer = new StringBuilder();
try {
    URLConnection connection = url.openConnection();
    for (String[] header : headers)
        connection.addRequestProperty(header[0], header[1]);
    reader = new BufferedReader(new InputStreamReader(connection.getInputStream()));
    int read;
...
StringreadURL(URLConnection connection, String charset)
read URL 
StringBuilder builder = new StringBuilder();
InputStream input = connection.getInputStream();
byte[] array = new byte[1024];
int read;
while ((read = input.read(array)) > 0) {
    builder.append(new String(array, 0, read, charset));
return builder.toString();
...
StringreadUrlContent(URLConnection connection)
Whole HTTP response as String from given URLConnection 
StringBuilder result = new StringBuilder();
try {
    Reader reader = new InputStreamReader(connection.getInputStream());
    char[] buffer = new char[50];
    int nrOfChars;
    while ((nrOfChars = reader.read(buffer)) != -1) {
        result.append(buffer, 0, nrOfChars);
} catch (IOException e) {
    throw new RuntimeException(e);
return result.toString();
StringreadURLToString(String url)
read URL To String 
StringBuilder response = null;
URL urll = new URL(url);
URLConnection connection = urll.openConnection();
connection.setRequestProperty("User-Agent", "Mozilla/5.0 (Windows NT 6.2; WOW64)");
connection.setConnectTimeout(5000);
BufferedReader in;
in = new BufferedReader(new InputStreamReader(connection.getInputStream()));
response = new StringBuilder();
...
StringreadUrlToString(String urlString)
read Url To String 
try {
    URL website = new URL(urlString);
    URLConnection connection = website.openConnection();
    BufferedReader in = new BufferedReader(new InputStreamReader(connection.getInputStream()));
    StringBuilder response = new StringBuilder();
    String inputLine;
    while ((inputLine = in.readLine()) != null)
        response.append(inputLine);
...
StringreadVersion(URLConnection connection)
read Version 
InputStreamReader reader = new InputStreamReader(connection.getInputStream());
BufferedReader stream = new BufferedReader(reader);
String line = stream.readLine();
stream.close();
return line;
Stringretrieve(URL url)
retrieve 
HttpURLConnection conn = (HttpURLConnection) url.openConnection();
conn.setRequestMethod("GET");
InputStream is = conn.getInputStream();
ByteArrayOutputStream output = new ByteArrayOutputStream();
byte[] buffer = new byte[1024];
for (int bytesRead = 0; (bytesRead = is.read(buffer)) != -1;) {
    output.write(buffer, 0, bytesRead);
return output.toString();