Java Utililty Methods HTTP Request

List of utility methods to do HTTP Request

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HTTP Request

Description

The list of methods to do HTTP Request are organized into topic(s).

Method

void addRequestProperties(final Map requestProperties, final HttpURLConnection connection)
Copies request properties to a connection.

if (requestProperties != null) {
 for (Entry<String, String> entry : requestProperties.entrySet()) {
 connection.addRequestProperty(entry.getKey(), entry.getValue());

String doHttpRequest(String action, URL url, String body, String... args)
_more_

HttpURLConnection connection = (HttpURLConnection) url.openConnection();
connection.setDoOutput(true);
connection.setDoInput(true);
connection.setInstanceFollowRedirects(false);
connection.setRequestMethod(action);
connection.setRequestProperty("charset", "utf-8");
for (int i = 0; i < args.length; i += 2) {
 connection.setRequestProperty(args[i], args[i + 1]);
...

String getContent(String requestUrl)
get Content

InputStream inputStream = null;
HttpURLConnection httpUrlConn = null;
BufferedReader bufferedReader = null;
InputStreamReader inputStreamReader = null;
try {
 URL url = new URL(requestUrl);
 httpUrlConn = (HttpURLConnection) url.openConnection();
 httpUrlConn.setDoInput(true);
...

String getDataFromRequestViaPost(String request, String urlParameters)
Gets data using HTTP POST method.

HttpURLConnection con = (HttpURLConnection) new URL(request).openConnection();
con.setDoOutput(true);
con.setDoInput(true);
con.setInstanceFollowRedirects(false);
con.setRequestMethod("POST");
con.setRequestProperty("charset", "utf-8");
con.setRequestProperty("Content-Length", Integer.toString(urlParameters.getBytes().length));
con.setUseCaches(false);
...

String getOutputFromUrlConnection(String stringUrl, String requestProperty)
get Output From Url Connection

String outputString = null;
try {
 URL url = new URL(stringUrl);
 HttpURLConnection conn = (HttpURLConnection) url.openConnection();
 conn.setRequestMethod("GET");
 conn.setRequestProperty("Accept", requestProperty);
 conn.connect();
 if (conn.getResponseCode() != 200) {
...

String getRequest(String urlString)
get Request

StringBuilder result = new StringBuilder();
URL url = null;
BufferedReader rd = null;
HttpURLConnection conn = null;
try {
 url = new URL(urlString);
} catch (MalformedURLException e) {
 e.printStackTrace();
...

HttpURLConnection getRequest(URL url, int timeout)
get Request

HttpURLConnection conn = (HttpURLConnection) url.openConnection();
conn.setRequestMethod("GET");
conn.setConnectTimeout(timeout);
conn.setReadTimeout(timeout);
return conn;

String getRequestContent(String urlText)
get Request Content

URL url = new URL(urlText);
HttpURLConnection urlcon = (HttpURLConnection) url.openConnection();
urlcon.setRequestMethod("POST");
urlcon.setUseCaches(false);
urlcon.setDoOutput(true);
PrintStream ps = new PrintStream(urlcon.getOutputStream());
ps.close();
urlcon.connect();
...

String makeUrlRequest(String surl, String data, String method)
make Url Request

URL url = new URL(surl);
HttpURLConnection con;
con = (HttpURLConnection) url.openConnection();
con.setRequestMethod(method);
con.setRequestProperty("User-Agent", "EBA Client");
con.setRequestProperty("Accept-Language", "en-US,en;q=0.5");
con.setDoOutput(true);
DataOutputStream wr = new DataOutputStream(con.getOutputStream());
...

void request(boolean quiet, String method, URL url, Map body)
request

if (!quiet) {
 System.out.println("[issuing request: " + method + " " + url + "]");
HttpURLConnection connection = (HttpURLConnection) url.openConnection();
connection.setRequestMethod(method);
byte buffer[] = new byte[8192];
int read = 0;
if (body != null) {
...