Android URL Parameter Get getParamValue(String url, String param)

Description

get Param Value

License

Apache License

Declaration

public static String getParamValue(String url, String param) 

Method Source Code

//package com.java2s;
/**/* w w w  . j a  v a 2s  .  c om*/
 * Copyright 2013 ??????
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

import java.net.MalformedURLException;
import java.net.URL;

import java.util.StringTokenizer;

public class Main {

    public static String getParamValue(String url, String param) {
        if ((url == null) || (param == null))
            return null;

        StringBuffer sb = new StringBuffer();
        try {
            String[] arrStr = split(new URL(url).getQuery(), "&");
            for (String str : arrStr) {
                String[] compare = split(str, "=");
                if (equals(param, compare[0])) {
                    sb.append(compare[1]);
                    break;
                }
            }
        } catch (MalformedURLException e) {
        }

        return sb.toString();
    }

    public static String[] split(String str, char separator) {
        return split(str, new String(new char[] { separator }));
    }

    public static String[] split(String str, String separator) {
        if (str == null) {
            return null;
        }
        String[] result;
        int i = 0; // index into the next empty array element

        // --- Declare and create a StringTokenizer
        StringTokenizer st = new StringTokenizer(str, separator);
        // --- Create an array which will hold all the tokens.
        result = new String[st.countTokens()];

        // --- Loop, getting each of the tokens
        while (st.hasMoreTokens()) {
            result[i++] = st.nextToken();
        }

        return result;
    }

    public static boolean equals(String str1, String str2) {
        return str1 == null ? str2 == null : str1.equals(str2);
    }
}

Related

1. paserParams(String url)
2. getValueFromQueryString(String url, String key)
3. parserURIQuery(String queryText)
4. getQueryUrl(final String url)
5. queryComponent(String url)