String url = gateway + "?" + encodedParamString + "&sign=" + URLEncoder.encode(sign, "UTF-8");
resp.sendRedirect(url);
///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
String url = gateway + "?" + encodedParamString + "&sign=" + URLEncoder.encode(sign, "UTF-8");
// 通过HttpClient获取响应字符串
HttpClient httpClient = new HttpClient();
HttpMethod method = new GetMethod(url);
String queryOrderResponseString = null;
httpClient.executeMethod(method);
// 如果响应码为200,从响应中获取响应字符串
if (method.getStatusCode() == 200) {}