java spring中的ipn沙箱不起作用

Posted 2023-02-22

【中文标题】java spring中的ipn沙箱不起作用

【英文标题】：ipn sandbox in java spring not working

【发布时间】：2015-10-18 04:21:17

【问题描述】：

我创建了一个 ipn 沙箱（paypal）并在下面添加了一个代码，但我没有得到服务器的响应。请问可能是什么问题？ 以及如何从我的服务器获取日志？ PS：我正在使用java spring。 谢谢。

Enumeration en = request.getParameterNames();
        String str = "cmd=_notify-validate";
        while (en.hasMoreElements()) 
            String paramName = (String) en.nextElement();
            String paramValue = request.getParameter(paramName);
            str = str + "&" + paramName + "="
                    + URLEncoder.encode(paramValue, "UTF-8");
        
        String url = "https://www.sandbox.paypal.com/cgi-bin/webscr";

        URL u = new URL(url);
        HttpURLConnection uc = (HttpURLConnection) u.openConnection();
        uc.setRequestMethod("POST");
        uc.setDoOutput(true);
        uc.setRequestProperty("Content-Type",
                "application/x-www-form-urlencoded");
        PrintWriter pw = new PrintWriter(uc.getOutputStream());
        pw.println(str);
        pw.close();

        BufferedReader in = new BufferedReader(new InputStreamReader(
                uc.getInputStream()));
        String res = in.readLine();
        in.close();

        //assign posted variables to local variables
        String itemName = request.getParameter("item_name");
        String itemNumber = request.getParameter("item_number");
        String paymentStatus = request.getParameter("payment_status");
        String paymentAmount = request.getParameter("mc_gross");
        String paymentCurrency = request.getParameter("mc_currency");
        String txnId = request.getParameter("txn_id");
        String receiverEmail = request.getParameter("receiver_email");
        String payerEmail = request.getParameter("payer_email");

        if (res.equals("VERIFIED")) 

            //---

         else if (res.equals("INVALID")) 
            //---


         else 
            // error
            System.out.println("error");

        
     catch (Exception e) 
        // TODO Auto-generated catch block
        e.printStackTrace();
    

【问题讨论】：

你能分享你的错误跟踪吗

【参考方案1】：

这里是我的服务方法供您查看可能会有所帮助，它是一种更简洁的方法，而不是在您的代码中对我来说不太可疑的较低级别创建 url，但错误代码可以帮助更准确地找到原因

protected void service(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException 
        configLogging();
        System.out.println("Inside service method");

        @SuppressWarnings("deprecation")
        HttpClient client = new DefaultHttpClient();
        HttpPost post = new HttpPost(Constants.IPN_SANDBOX_ENDPOINT);


        List<NameValuePair> params = new ArrayList<NameValuePair>();
        params.add(new BasicNameValuePair("cmd", "_notify-validate")); //You need to add this parameter to tell PayPal to verify
        for (Enumeration<String> e = request.getParameterNames(); e.hasMoreElements();) 
            String name = e.nextElement();
            String value = request.getParameter(name);
            System.out.println("<"+name+","+value+">");
            params.add(new BasicNameValuePair(name, value));
        
        post.setEntity(new UrlEncodedFormEntity(params));
        String rc = getRC(client.execute(post)).trim();
//      IPNMessageHandler ipnMessageHandler = new IPNMessageHandler(request);
//      ipnMessageHandler.handleMessage();
        if ("VERIFIED".equals(rc)) 
            //Your business code comes here
            System.out.println("IPN is fine and working");
            IPNMessageHandler ipnMessageHandler = new IPNMessageHandler(request);
            ipnMessageHandler.handleMessage();

        
    

    private String getRC(HttpResponse response) throws IOException, IllegalStateException 
        InputStream is = response.getEntity().getContent();
        BufferedReader br = new BufferedReader(new InputStreamReader(is));
        String result = "";
        String line = null;
        while ((line = br.readLine()) != null) 
            result += line;
        
        //      System.out.println("Response after: "+result);
        return result;