Here you can find the source of parseQuery(String query)
public static Map<String, List<String>> parseQuery(String query) throws UnsupportedEncodingException
//package com.java2s; //License from project: Open Source License import java.io.UnsupportedEncodingException; import java.net.URLDecoder; import java.util.ArrayList; import java.util.HashMap; import java.util.List; import java.util.Map; public class Main { public static Map<String, List<String>> parseQuery(String query) throws UnsupportedEncodingException { Map<String, List<String>> params = new HashMap<String, List<String>>(); // deal with encoded & query = URLDecoder.decode(query, "UTF-8"); for (String param : query.split("&")) { String pair[] = param.split("="); String key = URLDecoder.decode(pair[0], "UTF-8"); String value = ""; if (pair.length > 1) { value = URLDecoder.decode(pair[1], "UTF-8"); }//from w ww . jav a 2 s . c o m List<String> values = params.get(key); if (values == null) { values = new ArrayList<String>(); params.put(key, values); } values.add(value); } return params; } }