代替request.getParameter("...")的QueryStringParser类

import javax.servlet.http.HttpServletRequest;
import java.util.Map;
import java.util.StringTokenizer;
import java.util.HashMap;
import java.net.URLDecoder;

/**
 * Copyright (c) 2008
 * Author: Wooce Yang
 * Date: 2008-1-29
 * Time: 10:12:47
 * Description:  解决resin服务器上取不到urlencode后的中文参数的问题，需要自己从queryString中解析
 */
public class QueryStringParser {
    Map paramMap;
    HttpServletRequest request;

    public QueryStringParser(HttpServletRequest request) {
        String queryString = request.getQueryString();
        if (queryString == null) {
            paramMap = null;
            this.request = request;
            return;
        } else
            paramMap = new HashMap();
        StringTokenizer st = new StringTokenizer(queryString, "&");
        while (st.hasMoreTokens()) {
            String pairs = st.nextToken();
            String key = pairs.substring(0, pairs.indexOf('='));
            String value = pairs.substring(pairs.indexOf('=') + 1);
            paramMap.put(key, value);
        }
    }

    public String get(String key) {
        if(paramMap==null)
            return request.getParameter(key);
        else
            return URLDecoder.decode((String) paramMap.get(key));
    }
}

使用方法：

        QueryStringParser parser = new QueryStringParser(request);
        String curPath = parser.get("curpath");