content: /*
   *  Copyright Beijing 58 Information Technology Co.,Ltd.
   *
   *  Licensed to the Apache Software Foundation (ASF) under one
   *  or more contributor license agreements.  See the NOTICE file
   *  distributed with this work for additional information
   *  regarding copyright ownership.  The ASF licenses this file
   *  to you 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.
   */
  package com.bj58.spat.gaea.server.util;
  
  import java.io.UnsupportedEncodingException;
  import java.net.URLDecoder;
  import java.util.HashMap;
  import java.util.Map;
  
  /**
   * 
   * @author Service Platform Architecture Team (spat@58.com)
   */
  public class URLHelper {
  	
  	/**
  	 * url decode
  	 * @param url
  	 * @param encoding
  	 * @return
  	 * @throws UnsupportedEncodingException
  	 */
  	public static String decode(String url, String encoding) throws UnsupportedEncodingException{
  		if(url != null && !url.equals("")) {
  			return URLDecoder.decode(url, encoding);
  		}
  		return "";
  	}
  	
  	/**
  	 * url decode
  	 * @param url
  	 * @return
  	 * @throws UnsupportedEncodingException
  	 */
  	public static String decode(String url) throws UnsupportedEncodingException{
  		return decode(url, "utf-8");
  	}
  	
  	/**
  	 * get url without para
  	 * @param url
  	 * @return
  	 * @throws UnsupportedEncodingException
  	 */
  	public static String getOnlyUrl(String url) throws UnsupportedEncodingException{
  		url = URLDecoder.decode(url, "utf-8");
  		return url.split("\\?")[0];
  	}
  	
  	/**
  	 * get paras
  	 * @param url
  	 * @return
  	 * @throws UnsupportedEncodingException
  	 */
  	public static Map<String,String> getParas(String url) throws UnsupportedEncodingException {
  		url = URLDecoder.decode(url, "utf-8");
  		String[] urlAry = url.split("\\?"); 
  		Map<String, String> mapParas = new HashMap<String, String>();
  		if(urlAry.length > 1) {
  			for(int i=1; i<urlAry.length; i++) {
  				String[] paras = urlAry[i].split("&");
  				for(String para : paras) {
  					String[] kv = para.split("=");
  					if(kv.length == 2) {
  						mapParas.put(kv[0], kv[1]);
  					}
  				}
  			}
  		}
  		return mapParas;
  	}
  }