code: public static <T> T executeXmlResult(HttpUriRequest request,Class<T> clazz,String sign_type,String key){
  		return execute(request,XmlResponseHandler.createResponseHandler(clazz,sign_type,key));
  	}
docs: 数据返回自动XML对象解析
  @param request request
  @param clazz clazz
  @param sign_type 数据返回验证签名类型
  @param key 数据返回验证签名key
  @param <T> T
  @return result
  @since 2.8.5