Here is a function you can use to retrieve a query string value:
function getQueryParameterValue(urlQuery,parameterKey,defaultValueIn) {
var defaultValue = (defaultValueIn && StringUtils.isNotEmpty(defaultValueIn)) ? defaultValueIn : '';
// 1. Validate that we have a URL Query string
if (StringUtils.isEmpty(urlQuery)) {
return defaultValue;
}
// 2. Validate that we have a parameterKey
if (StringUtils.isEmpty(parameterKey)) {
return defaultValue;
}
var parameterValue = defaultValue;
try {
var urlParts = StringUtils.splitByWholeSeparator(urlQuery, "?");
// If no "?", then treat the entire string as the queryParameters.
var queryParams = urlParts.length > 1 ? urlParts[1] : urlParts[0];
var keyPairs = StringUtils.splitByWholeSeparator(queryParams, "&");
// cycle the list of key-value pairs and find the parameter
// specified by the 'parameterKey' passed into this function
for (var i = 0; i < keyPairs.length; i++) {
var keyValueParts = StringUtils.splitByWholeSeparator(keyPairs[i], "=");
if (keyValueParts.length == 2 && StringUtils.equalsIgnoreCase(keyValueParts[0], parameterKey)) {
parameterValue = String(qie.urlDecode(keyValueParts[1]));
break;
}
}
} catch (err) {
throw "Failed to getQueryParameterValue: " + err;
}
return parameterValue;
}