【Tech-Android-Other】高效拼接一个GET请求URL

高效拼接一个GET请求URL

 private String getUrl(HashMap<String, String> params) {  String url = Constants.URL_CS_DATA;  // 添加url参数  if (params != null) {   Iterator<String> it = params.keySet().iterator();   StringBuffer sb = null;   while (it.hasNext()) {    String key = it.next();    String value = params.get(key);    if (sb == null) {     sb = new StringBuffer();     sb.append("?");    } else {     sb.append("&");    }    sb.append(key);    sb.append("=");    sb.append(value);   }   url += sb.toString();  }  return url; }