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

voidprintHeaderFields(final URL url)
print Header Fields 
URLConnection conn = null;
try {
    conn = openConnection(url);
    for (final String name : conn.getHeaderFields().keySet()) {
        System.out.println(name + "\t" + conn.getHeaderField(name));
} catch (Exception e) {
    e.printStackTrace();
...
voidprintHttpURLConnectionHeaders(HttpURLConnection httpURLConnection)
print Http URL Connection Headers 
Map<String, List<String>> s = httpURLConnection.getHeaderFields();
Set<Map.Entry<String, List<String>>> set = s.entrySet();
for (Map.Entry<String, List<String>> ss : set) {
    System.out.println("key: " + ss.getKey() + "  value: " + ss.getValue());
MapreadHeadersFromResponse(HttpURLConnection httpURLConnection)
read Headers From Response 
Iterator<String> iterator = httpURLConnection.getHeaderFields().keySet().iterator();
Map<String, String> responseHeaders = new HashMap();
while (iterator.hasNext()) {
    String key = iterator.next();
    if (key != null) {
        responseHeaders.put(key, httpURLConnection.getHeaderField(key));
return responseHeaders;
voidsetHeader(final HttpURLConnection couchdbConnection, final String headerName, final String headerValue)
set Header 
couchdbConnection.setRequestProperty(headerName, headerValue);
voidsetHeader(HttpURLConnection con, Map headers)
set Header 
Iterator iter = headers.keySet().iterator();
while (iter.hasNext()) {
    String key = (String) iter.next();
    con.setRequestProperty(key, (String) headers.get(key));
voidsetHeader(HttpURLConnection urlConnection, String key, String value)
set Header 
urlConnection.setRequestProperty(key, value);
voidsetHeaders(HttpURLConnection conn, List headers, String encoding)
set Headers 
if (null != headers) {
    for (Iterator<String> iter = headers.iterator(); iter.hasNext();) {
        conn.addRequestProperty(iter.next(), iter.next());
conn.addRequestProperty("Content-Type", "application/x-www-form-urlencoded;charset=" + encoding);
voidsetHeadersToRequest(HttpURLConnection urlConnection, Map headersMap)
set Headers To Request 
if (headersMap != null && headersMap.size() > 0) {
    Iterator<String> iterator = headersMap.keySet().iterator();
    while (iterator.hasNext()) {
        String key = iterator.next();
        urlConnection.setRequestProperty(key, headersMap.get(key));
StringsubmitHttpRequest(String url, Map headers, String data)
Utility method used to submit an HTTP request. 
StringBuilder result = new StringBuilder();
HttpURLConnection connection = null;
try {
    connection = (HttpURLConnection) (new URL(url)).openConnection();
    connection.setUseCaches(false);
    connection.setDoInput(true);
    for (String key : headers.keySet()) {
        connection.setRequestProperty(key, headers.get(key));
...