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

Listget(String url, int timeout, Map header)
Method to make a GET request to the specified url 
return request(url, timeout, "GET", header);
Stringget(String url, Map headers)
Send a get request 
return fetch("GET", url, null, headers);
Stringget(String url, Map params)
get 
StringBuilder sb = new StringBuilder();
if (!params.isEmpty()) {
    sb.append("?");
int idx = 0;
for (String column : params.keySet()) {
    if (idx > 0) {
        sb.append("&");
...
Stringget(String url, String encoding)
get 
return getStreamContent(new URL(url).openConnection().getInputStream());
Stringget(String urlStr)
get 
try {
    URL url = new URL(urlStr);
    HttpURLConnection connection = (HttpURLConnection) url.openConnection();
    connection.setRequestMethod("GET");
    connection.setInstanceFollowRedirects(true);
    BufferedReader in = new BufferedReader(new InputStreamReader(connection.getInputStream()));
    List<String> lines = in.lines().collect(Collectors.toList());
    in.close();
...
byte[]get(String urlString)
get 
HttpURLConnection urlConnection = null;
try {
    URL url = new URL(urlString);
    urlConnection = (HttpURLConnection) url.openConnection();
    urlConnection.setRequestMethod("GET");
    urlConnection.setConnectTimeout(5000);
    urlConnection.setReadTimeout(3000);
    int responseCode = urlConnection.getResponseCode();
...
intget(URL host, String endpoint, String customer, String name, String version, OutputStream out)
get 
int responseCode;
URL url = new URL(host, endpoint + "?customer=" + customer + "&name=" + name + "&version=" + version);
InputStream input = null;
HttpURLConnection connection = (HttpURLConnection) url.openConnection();
try {
    responseCode = connection.getResponseCode();
    input = connection.getInputStream();
    copy(input, out);
...
Stringget(URL url)
get 
HttpURLConnection connection = (HttpURLConnection) url.openConnection();
connection.setRequestMethod("GET");
BufferedReader input = new BufferedReader(new InputStreamReader(connection.getInputStream()));
StringBuilder buffer = new StringBuilder();
for (String line; (line = input.readLine()) != null;) {
    buffer.append(line);
    buffer.append("\n");
input.close();
return buffer.toString();
InputStreamget(URL url, String acceptType)
Sends HTTP GET request 
HttpURLConnection con = (HttpURLConnection) url.openConnection();
con.setDoOutput(true);
con.setRequestMethod("GET");
con.setRequestProperty("accept", acceptType);
return con.getInputStream();