Java URL Query Build mapToQueryString(Map parameters, String charSet)

Description

map To Query String

License

Open Source License

Declaration

public static String mapToQueryString(Map<String, Object> parameters, String charSet) 

Method Source Code

//package com.java2s;
//License from project: Open Source License 

import java.io.UnsupportedEncodingException;
import java.net.URLEncoder;

import java.util.Map;

public class Main {
    public static String mapToQueryString(Map<String, Object> parameters, String charSet) {
        String queryString = "";
        if (parameters != null && !parameters.isEmpty()) {
            for (String key : parameters.keySet()) {
                try {
                    Object value = parameters.get(key);
                    if (value instanceof String) {
                        queryString += key + "=" + URLEncoder.encode(value == null ? "" : value.toString(), charSet)
                                + "&";
                    }//from www.j a v  a  2  s  .  co  m
                } catch (UnsupportedEncodingException e) {
                    throw new IllegalArgumentException("invalid charset : " + charSet);
                }
            }
            if (queryString.length() > 0) {
                queryString = queryString.substring(0, queryString.length() - 1);
            }
        }
        return queryString;
    }
}

Related

1. getQueryUrl(String word)
2. getQueryUrl(String word, Integer page)
3. getQueryURL(URL baseUrl, String[] parameters)
4. getQueryValues(String input)
5. mapToQueryString(Map parameters, String charSet)
6. mapToQueryString(Map queryString)
7. toQueryString(Map map)
8. toQueryString(Map requestMap)