Java Utililty Methods URL Query Build

List of utility methods to do URL Query Build

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Description

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

Method

StringcreateQueryString(Map options)
Given a key / value mapping, create and return a URI formatted query string that is valid and can be appended to a URI. 
try {
    if (options.size() > 0) {
        StringBuffer rc = new StringBuffer();
        boolean first = true;
        for (String key : options.keySet()) {
            if (first) {
                first = false;
            } else {
...
StringcreateQueryString(Map params)
Given a java.util.Map of params, construct a query string 
StringBuilder queryString = new StringBuilder();
boolean first = true;
for (Map.Entry<String, String> entry : params.entrySet()) {
    String paramName = entry.getKey();
    String paramValue = entry.getValue();
    if (first) {
        first = false;
    } else {
...
StringcreateQueryString(Map params)
Create a query String using the given parameters. 
if (null == params || params.isEmpty()) {
    return "";
StringBuilder sb = new StringBuilder();
if (!params.isEmpty()) {
    sb.append("?");
    try {
        for (Iterator<Entry<String, String>> iterator = params.entrySet().iterator(); iterator.hasNext();) {
...
StringcreateQueryStringForParameters(Map parameters)
create Query String For Parameters 
StringBuilder parametersAsQueryString = new StringBuilder();
if (parameters != null) {
    boolean firstParameter = true;
    for (String parameterName : parameters.keySet()) {
        if (!firstParameter) {
            parametersAsQueryString.append(PARAMETER_DELIMITER);
        parametersAsQueryString.append(parameterName).append(PARAMETER_EQUALS_CHAR)
...
StringBuffercreateQueryStringFromMap(Map m, String ampersand, boolean encode)
Builds a query string from a given map of parameters. 
final StringBuffer result = new StringBuffer("");
final Set<?> entrySet = m.entrySet();
final Iterator<?> entrySetIterator = entrySet.iterator();
while (entrySetIterator.hasNext()) {
    final Map.Entry<?, ?> entry = (Map.Entry<?, ?>) entrySetIterator.next();
    final Object o = entry.getValue();
    if (o == null) {
        append(entry.getKey(), "", result, ampersand, encode);
...
StringgetQuery(Map params, String encode)
get Query 
StringBuffer query = new StringBuffer();
for (Iterator iter = params.keySet().iterator(); iter.hasNext();) {
    String name = (String) iter.next();
    String value = (String) params.get(name);
    try {
        value = URLEncoder.encode(value, encode);
    } catch (UnsupportedEncodingException e) {
    query.append(name);
    query.append("=");
    query.append(value);
    query.append("&");
return query.toString();
StringgetQuery(URL theURL)
Returns the query string of the URL. 
String file = theURL.getFile();
String query = null;
if (file != null) {
    int q = file.lastIndexOf('?');
    if (q != -1) {
        query = file.substring(q + 1);
    } else {
        query = "";
...
HashtablegetQueryFromURL(URL url)
get Query From URL 
if (url == null || url.getQuery() == null)
    return new Hashtable<String, String>();
Hashtable<String, String> returned = new Hashtable<String, String>();
StringTokenizer st = new StringTokenizer(url.getQuery(), "&");
while (st.hasMoreTokens()) {
    StringTokenizer subSt = new StringTokenizer(st.nextToken(), "=");
    String key = null, value = null;
    if (subSt.hasMoreTokens())
...
MapgetQueryMap(String query)
get Query Map 
String[] params = query.split("&");
Map<String, String> map = new HashMap<>();
for (String param : params) {
    String name = null;
    final String[] paramParts = param.split("=");
    try {
        name = URLDecoder.decode(paramParts[0], "utf-8");
    } catch (UnsupportedEncodingException e) {
...
MapgetQueryMap(String urlString)
Parses a URLs query parameters into a Map for easier parsing of options. 
return getQueryMap(getUrlObject(urlString));