Java URL Parameter Builder parseGetParameters(HttpExchange exchange)

Description

parse Get Parameters

License

Open Source License

Declaration

public static void parseGetParameters(HttpExchange exchange) throws UnsupportedEncodingException 

Method Source Code

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

import java.io.UnsupportedEncodingException;
import java.net.URI;
import java.net.URLDecoder;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import com.sun.net.httpserver.HttpExchange;

public class Main {
    public static void parseGetParameters(HttpExchange exchange) throws UnsupportedEncodingException {

        Map<String, Object> parameters = new HashMap<String, Object>();
        URI requestedUri = exchange.getRequestURI();
        String query = requestedUri.getRawQuery();
        parseQuery(query, parameters);//  www  .  j  ava 2  s.c om
        exchange.setAttribute("parameters", parameters);
    }

    @SuppressWarnings("unchecked")
    private static void parseQuery(String query, Map<String, Object> parameters)
            throws UnsupportedEncodingException {

        if (query != null) {
            String pairs[] = query.split("[&]");

            for (String pair : pairs) {
                String param[] = pair.split("[=]");

                String key = null;
                String value = null;
                if (param.length > 0) {
                    key = URLDecoder.decode(param[0], System.getProperty("file.encoding"));
                }

                if (param.length > 1) {
                    value = URLDecoder.decode(param[1], System.getProperty("file.encoding"));
                }

                if (parameters.containsKey(key)) {
                    Object obj = parameters.get(key);
                    if (obj instanceof List<?>) {
                        List<String> values = (List<String>) obj;
                        values.add(value);
                    } else if (obj instanceof String) {
                        List<String> values = new ArrayList<String>();
                        values.add((String) obj);
                        values.add(value);
                        parameters.put(key, values);
                    }
                } else {
                    parameters.put(key, value);
                }
            }
        }
    }
}

Related

1. mapToStr( Map map)
2. mapToStr(Map map)
3. mapToString(Map map)
4. parse(final Map> parameters, final Scanner scanner, final String encoding)
5. parse_parameters(String input)
6. parseParameters(final String value)
7. parseResponseParams(String body)
8. sendGetRequest(String path, Map params, String enc)
9. sendPostRequest(String path, Map params, String enc)