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我對Java相對比較陌生，並且試圖讓我的應用程序將POST請求發佈到亞馬遜的MWS API上幾天。我不斷得到一個'SignatureDoesNotMatch'的迴應，我找不出原因。我已經廣泛使用亞馬遜的MWS便箋簿，並且使用它我沒有任何問題獲得成功響應，所以我的密鑰等都可以。由暫存器生成的內容參數和base64簽名與我的應用程序生成的內容匹配，所以我確信我的應用程序正在編譯參數和簽名。當我將由暫存器生成的內容參數硬編碼到我的應用程序中時，出現'SignatureDoesNotMatch'error響應。我會非常感謝來自更有經驗的Java開發人員或任何已經制作了像我的亞馬遜MWS一樣的應用程序的人。計算亞馬遜MWS簽名不匹配
我的代碼的相關部分是：
/*
* get amazon timestamp
*/
GetAmazonTimestamp timestampObj = new GetAmazonTimestamp();
String amazonTimestamp = null;
try {
amazonTimestamp = timestampObj.getTimestamp();
amazonTimestamp.replace(".000Z", "Z");
} catch (IOException e) {
e.printStackTrace();
}
/*
* create http parameters and initialise the signature value
*/
String URLendpoint = "https://mws.amazonservices.co.uk/orders/2011-01-01";
String param1 = "AWSAccessKeyId"; String value1 = "AKIAIZXBKLVSGBBQQL2A";
String param2 = "Action"; String value2 = "ListOrders";
String param3 = "LastUpdatedAfter"; String value3 = "2013-02-01T00:00:00Z";
String param4 = "MarketplaceId.Id.1"; String value4 = "A1F83G8C2ARO7P";
String param5 = "SellerId"; String value5 = "A3A2272JFHXROO";
String param6 = "SignatureMethod"; String value6 = "HmacSHA256";
String param7 = "SignatureVersion"; String value7 = "2";
String param8 = "Timestamp"; String value8 = amazonTimestamp;
String param9 = "Version"; String value9 = "2011-01-01";
String param10 = "Signature"; String value10 = null;
/*
* build sections of URL components for signature
*/
String URLforSignature = "POST\n" + "mws.amazonservices.co.uk\n" + "/Orders/2011-01-01\n" +
URLEncoder.encode(param1,"UTF-8") + "=" +
URLEncoder.encode(value1,"UTF-8") + "&" +
URLEncoder.encode(param2,"UTF-8") + "=" +
URLEncoder.encode(value2,"UTF-8") + "&" +
URLEncoder.encode(param3,"UTF-8") + "=" +
URLEncoder.encode(value3,"UTF-8") + "&" +
URLEncoder.encode(param4,"UTF-8") + "=" +
URLEncoder.encode(value4,"UTF-8") + "&" +
URLEncoder.encode(param5,"UTF-8") + "=" +
URLEncoder.encode(value5,"UTF-8") + "&" +
URLEncoder.encode(param6,"UTF-8") + "=" +
URLEncoder.encode(value6,"UTF-8") + "&" +
URLEncoder.encode(param7,"UTF-8") + "=" +
URLEncoder.encode(value7,"UTF-8") + "&" +
URLEncoder.encode(param8,"UTF-8") + "=" +
URLEncoder.encode(value8,"UTF-8") + "&" +
URLEncoder.encode(param9,"UTF-8") + "=" +
URLEncoder.encode(value9,"UTF-8");
/*
* hash and base64 encode the signature using the URLforSignature
*/
GetAmazonSignature signatureObj = new GetAmazonSignature();
value10 = signatureObj.getSignature(URLforSignature);
/*
* create the http post
*/
HttpClient client = new DefaultHttpClient();
HttpPost post = new HttpPost(URLendpoint);
String line = null;
try {
List<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>();
post.addHeader("Content-Type", "application/x-www-form-urlencoded");
nameValuePairs.add(new BasicNameValuePair(param1, value1));
nameValuePairs.add(new BasicNameValuePair(param2, value2));
nameValuePairs.add(new BasicNameValuePair(param3, value3));
nameValuePairs.add(new BasicNameValuePair(param4, value4));
nameValuePairs.add(new BasicNameValuePair(param5, value5));
nameValuePairs.add(new BasicNameValuePair(param6, value6));
nameValuePairs.add(new BasicNameValuePair(param7, value7));
nameValuePairs.add(new BasicNameValuePair(param8, value8));
nameValuePairs.add(new BasicNameValuePair(param9, value9));
nameValuePairs.add(new BasicNameValuePair(param10, value10));
post.setEntity(new UrlEncodedFormEntity(nameValuePairs, "UTF-8"));
HttpResponse response = client.execute(post);
BufferedReader rd = new BufferedReader(new InputStreamReader(
response.getEntity().getContent()));
line = "";
while ((line = rd.readLine()) != null) {
System.out.println(line);
}
}
感謝您的幫助。
非常感謝您的回覆。我花了一些時間與亞馬遜MWS訂單API，但我發現它是不可逾越的。因爲我正在學習用java編程，所以我認爲我將能夠逐步構建適當的代碼，我相信這正是我所做的。我不介意創建我的應用程序需要更長的時間，我只是想了解它在做什麼，以便我可以繼續構建它。 – Bacon 2013-02-12 13:03:23