将request.getParameterMap()转换成可操作的普通Map

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/**

 * 从request中获得参数Map，并返回可读的Map

 *

 * @param request

 * @return

 */

@SuppressWarnings("unchecked")

public static Map getParameterMap(HttpServletRequest request) {

    // 参数Map

    Map properties = request.getParameterMap();

    // 返回值Map

    Map returnMap = new HashMap();

    Iterator entries = properties.entrySet().iterator();

    Map.Entry entry;

    String name = "";

    String value = "";

    while (entries.hasNext()) {

        entry = (Map.Entry) entries.next();

        name = (String) entry.getKey();

        Object valueObj = entry.getValue();

        if(null == valueObj){

            value = "";

        }else if(valueObj instanceof String[]){

            String[] values = (String[])valueObj;

            for(int i=0;i<values.length;i++){

                value = values[i] + ",";

            }

            value = value.substring(0, value.length()-1);

        }else{

            value = valueObj.toString();

        }

        returnMap.put(name, value);

    }

    return returnMap;

}