Java Utililty Methods HTTP Header

List of utility methods to do HTTP Header

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Description

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

Method

voidaddCustomHeaders(HttpURLConnection conn, Map headers)
add Custom Headers 
for (Map.Entry<String, String> entry : headers.entrySet()) {
    addHeader(conn, entry.getKey(), entry.getValue());
voidaddHeader(HttpURLConnection conn, String headerName, String value)
add Header 
conn.setRequestProperty(headerName, value);
voidaddHeadersToRequest(HttpURLConnection request, Map headers)
add Headers To Request 
if (headers != null) {
    for (String key : headers.keySet()) {
        request.addRequestProperty(key, headers.get(key));
voidcopyHttpHeaders(@Nonnull final HttpURLConnection aConn, @Nonnull final InternetHeaders aHeaders)
Copy headers from an Http connection to an InternetHeaders object 
for (final Map.Entry<String, List<String>> aConnHeader : aConn.getHeaderFields().entrySet()) {
    final String sHeaderName = aConnHeader.getKey();
    if (sHeaderName != null)
        for (final String sHeaderValue : aConnHeader.getValue()) {
            if (aHeaders.getHeader(sHeaderName) == null)
                aHeaders.setHeader(sHeaderName, sHeaderValue);
            else
                aHeaders.addHeader(sHeaderName, sHeaderValue);
...
HttpURLConnectioncreateHttpConnection(URL endpointUrl, String httpMethod, Map headers)
create Http Connection 
try {
    HttpURLConnection connection = (HttpURLConnection) endpointUrl.openConnection();
    connection.setRequestMethod(httpMethod);
    if (headers != null) {
        System.out.println("--------- Request headers ---------");
        for (String headerKey : headers.keySet()) {
            System.out.println(headerKey + ": " + headers.get(headerKey));
            connection.setRequestProperty(headerKey, headers.get(headerKey));
...
Stringdelete(String url, Map headers)
Send a delete request 
return fetch("DELETE", url, null, headers);
intdoDelete(URL endpoint, Map headers)
Send 
HttpURLConnection urlConnection = null;
int responseCode;
try {
    urlConnection = (HttpURLConnection) endpoint.openConnection();
    try {
        urlConnection.setRequestMethod("DELETE");
    } catch (ProtocolException var33) {
        throw new Exception(
...
voiddumpHeaders(HttpURLConnection conn)
dump Headers 
String name;
String value;
for (int i = 0; i < 20; i++) {
    name = conn.getHeaderFieldKey(i);
    value = conn.getHeaderField(i);
    if (name == null && value == null)
        break;
    System.out.println(name + "=" + value);
...
voiddumpHeaders(HttpURLConnection conn, PrintStream out)
dump Headers 
for (Map.Entry<String, List<String>> e : conn.getHeaderFields().entrySet())
    for (String v : e.getValue())
        out.println("received header " + e.getKey() + ": " + v);
voiddumpHttpHeaders(HttpURLConnection conn, java.io.PrintStream out)
dump Http Headers 
Map<String, List<String>> map = conn.getHeaderFields();
out.println("Printing All Response Header for URL: " + conn.getURL().toString() + "\n");
for (Map.Entry<String, List<String>> entry : map.entrySet()) {
    out.println(entry.getKey() + " : " + entry.getValue());