Java Utililty Methods URL Build

List of utility methods to do URL Build

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Description

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

Method

StringqueryStringify(HashMap qString)
Converts a Map into an HTTP query string 
String retval = "";
for (Map.Entry<String, String> pair : qString.entrySet()) {
    try {
        retval += URLEncoder.encode(pair.getKey(), "UTF-8") + "="
                + URLEncoder.encode(pair.getValue(), "UTF-8");
        retval += "&";
    } catch (UnsupportedEncodingException e) {
        throw new RuntimeException("Apparently Unicode isn't a good encoding");
...
MapqueryStringToMap(String query, Boolean decode)
query String To Map 
HashMap<String, String> hashMap = new HashMap<String, String>();
String[] encodedPairs = query.split("&");
for (String pair : encodedPairs) {
    String[] splitPair = pair.split("=", -1);
    if (splitPair.length != 2) {
        throw new RuntimeException("query string not properly formatted");
    String encodedKey = splitPair[0];
...
MapqueryStringToMap(String queryString)
Parses and form-urldecodes a querystring-like string into a map 
Map<String, String> result = new HashMap<String, String>();
if (queryString != null && queryString.length() > 0) {
    for (String param : queryString.split(PARAM_SEPARATOR)) {
        String pair[] = param.split(PAIR_SEPARATOR);
        String key = formURLDecode(pair[0]);
        String value = pair.length > 1 ? formURLDecode(pair[1]) : EMPTY_STRING;
        result.put(key, value);
return result;
MapqueryStringToMap(String queryString, String charset)
Convert a query string into a map. 
Map<String, String> result = new HashMap<>();
String[] pairs = queryString.split("\\&");
for (String pair : pairs) {
    StringTokenizer kp = new StringTokenizer(pair, "=");
    String key = kp.nextToken();
    String value = "true";
    if (kp.hasMoreTokens()) {
        value = URLDecoder.decode(kp.nextToken(), charset);
...
MapqueryStringToMap(String queryString, String charSet)
query String To Map 
if (queryString == null) {
    throw new IllegalArgumentException("queryString must be specified");
int index = queryString.indexOf("?");
if (index > 0) {
    queryString = queryString.substring(index + 1);
String[] keyValuePairs = queryString.split("&");
...
MapqueryToMap(final String query)
query To Map 
final Map<String, String> map = new HashMap<String, String>();
final String[] keyValuePairs = query.split("&");
for (String KeyValuePair : keyValuePairs) {
    final String[] KeyValue = KeyValuePair.split("=");
    try {
        map.put(URLDecoder.decode(KeyValue[0], "UTF-8"), Strings.nullToEmpty(KeyValue[1]));
    } catch (UnsupportedEncodingException e) {
        throw new RuntimeException("This method requires UTF-8 encoding support", e);
...
MapqueryToParams(String query)
Parse given query string of the form name1=value1&name2=value2 and return it as Map 
Map<String, String> query_pairs = new HashMap<String, String>();
String[] pairs = query.split("&");
for (String pair : pairs) {
    int idx = pair.indexOf("=");
    query_pairs.put(URLDecoder.decode(pair.substring(0, idx), "UTF-8"),
            URLDecoder.decode(pair.substring(idx + 1), "UTF-8"));
return query_pairs;
...