url参数和map之间的转换

         /** * 将url参数转换成map * @param param aa=11&bb=22&cc=33 * @return */public static Map<String, Object> getUrlParams(String param) {Map<String, Object> map = new HashMap<String, Object>(0);if (StringUtils.isBlank(param)) {return map;}String[] params = param.split("&");for (int i = 0; i < params.length; i++) {String[] p = params[i].split("=");if (p.length == 2) {map.put(p[0], p[1]);}}return map;}/** * 将map转换成url * @param map * @return */public static String getUrlParamsByMap(Map<String, Object> map) {if (map == null) {return "";}StringBuffer sb = new StringBuffer();for (Map.Entry<String, Object> entry : map.entrySet()) {sb.append(entry.getKey() + "=" + entry.getValue());sb.append("&");}String s = sb.toString();if (s.endsWith("&")) {s = org.apache.commons.lang.StringUtils.substringBeforeLast(s, "&");}return s;}

http://dh189.iteye.com/blog/752477