Java URL Query Build getQueryString(final Map parameters, final boolean encode)

Description

get Query String

License

Open Source License

Parameter

Parameter	Description
parameters	a parameter
encode	a parameter

Exception

Parameter	Description
UnsupportedEncodingException	an exception

Return

String

Declaration

public static String getQueryString(final Map<String, Object> parameters, final boolean encode)
        throws UnsupportedEncodingException 

Method Source Code

//package com.java2s;
/*******************************************************************************
 * Manchester Centre for Integrative Systems Biology
 * University of Manchester/*from  ww w.ja va2  s . co  m*/
 * Manchester M1 7ND
 * United Kingdom
 * 
 * Copyright (C) 2007 University of Manchester
 * 
 * This program is released under the Academic Free License ("AFL") v3.0.
 * (http://www.opensource.org/licenses/academic.php)
 *******************************************************************************/

import java.io.*;
import java.net.*;
import java.util.*;

public class Main {
    /**
     * 
     * @param parameters
     * @param encode
     * @return String
     * @throws UnsupportedEncodingException
     */
    public static String getQueryString(final Map<String, Object> parameters, final boolean encode)
            throws UnsupportedEncodingException {
        final String ENCODING = "UTF-8"; //$NON-NLS-1$
        final String EQUALS = "="; //$NON-NLS-1$
        final String AMPERSAND = "&"; //$NON-NLS-1$
        final String EQUALS_ENCODED = encode ? URLEncoder.encode(EQUALS, ENCODING) : EQUALS;
        final String AMPERSAND_ENCODED = encode ? URLEncoder.encode(AMPERSAND, ENCODING) : AMPERSAND;

        final StringBuffer queryString = new StringBuffer();

        for (Iterator<Map.Entry<String, Object>> iterator = parameters.entrySet().iterator(); iterator.hasNext();) {
            final Map.Entry<String, Object> entry = iterator.next();
            queryString.append(encode ? URLEncoder.encode(entry.getKey(), ENCODING) : entry.getKey());
            queryString.append(EQUALS_ENCODED);
            queryString.append(encode ? URLEncoder.encode(entry.getValue().toString(), ENCODING)
                    : entry.getValue().toString());
            queryString.append(AMPERSAND_ENCODED);
        }

        if (queryString.length() > 0) {
            queryString.setLength(queryString.length() - AMPERSAND_ENCODED.length());
        }

        return queryString.toString();
    }
}

Related

1. getQueryParams(String httpUrl)
2. getQueryParams(String query)
3. getQueryParams(String s)
4. getQueryParams(String url)
5. getQueryString(final Map parameters)
6. getQueryString(Map parameters)
7. getQueryString(Map parameters)
8. getQueryString(String url)
9. getQueryUrl(String word)