Java URL Build buildQueryString(Map params)

Description

Creates a query string out of parameters map

License

Open Source License

Parameter

Parameter	Description
params	a parameter

Declaration

public static String buildQueryString(Map<String, Object> params) throws Exception 

Method Source Code

//package com.java2s;
/*//from  w ww  .j a v a 2 s. c  o  m
 *  Copyright (c) 2014 Michael Berkovich, http://tr8nhub.com All rights reserved.
 *
 *  Permission is hereby granted, free of charge, to any person obtaining a copy
 *  of this software and associated documentation files (the "Software"), to deal
 *  in the Software without restriction, including without limitation the rights
 *  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 *  copies of the Software, and to permit persons to whom the Software is
 *  furnished to do so, subject to the following conditions:
 *
 *  The above copyright notice and this permission notice shall be included in
 *  all copies or substantial portions of the Software.
 *
 *  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 *  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 *  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 *  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 *  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 *  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 *  THE SOFTWARE.
 */

import java.net.URLEncoder;

import java.util.Iterator;

import java.util.Map;

public class Main {
    /**
     * Creates a query string out of parameters map
     * @param params
     * @return
     */
    public static String buildQueryString(Map<String, Object> params) throws Exception {
        StringBuilder sb = new StringBuilder();
        Iterator<Map.Entry<String, Object>> entries = params.entrySet().iterator();
        while (entries.hasNext()) {
            Map.Entry<String, Object> e = entries.next();
            if (sb.length() > 0) {
                sb.append('&');
            }
            sb.append(URLEncoder.encode((String) e.getKey(), "UTF-8")).append('=')
                    .append(URLEncoder.encode((String) e.getValue(), "UTF-8"));
        }
        return sb.toString();
    }
}

Related

1. buildQuery(Map paramMap)
2. buildQuery(Map paramMap)
3. buildQuery(Map query)
4. buildQuery(Map params)
5. buildQueryString(Map parameters)
6. buildQueryString(Map queryParams)
7. buildQueryString(Map params)
8. buildQueryString(Multimap params)
9. buildURL(int imageId)