我正在構建使用post方法向API發送數據的後端服務器端java應用程序,這個應用程序基於我在Python和C#中給出的示例(控制檯應用程序) 。此API具有與各種響應代碼相關的特定響應。我嘗試使用下面的代碼,但響應消息似乎是與響應代碼關聯的通用系統消息,而不是我正在訪問的API上的消息。在Java中檢索服務器端HTTP錯誤消息
System.out.println("Response Code : " + connection.getResponseCode());
System.out.println("Response Message : " + connection.getResponseMessage());
我在C#例子中看到,他們使用引發WebException錯誤處理,但我不能找到Java等同,如果有,甚至是其中之一。
編輯:這是我用403獲得,在Python示例中的錯誤,它返回一個自定義的響應
Exception in thread "main" java.io.IOException: Server returned HTTP response code: 403 for URL: https://[redacted]
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
at sun.net.www.protocol.http.HttpURLConnection$10.run(HttpURLConnection.java:1926)
at sun.net.www.protocol.http.HttpURLConnection$10.run(HttpURLConnection.java:1921)
at java.security.AccessController.doPrivileged(Native Method)
at sun.net.www.protocol.http.HttpURLConnection.getChainedException(HttpURLConnection.java:1920)
at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(HttpURLConnection.java:1490)
at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1474)
at sun.net.www.protocol.https.HttpsURLConnectionImpl.getInputStream(HttpsURLConnectionImpl.java:254)
at javaapplication1.JavaApplication1.main(JavaApplication1.java:59)
Caused by: java.io.IOException: Server returned HTTP response code: 403 for URL: https://api.rentrak.com/tv/v3/national_airing_views
at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(HttpURLConnection.java:1876)
at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1474)
at java.net.HttpURLConnection.getResponseCode(HttpURLConnection.java:480)
at sun.net.www.protocol.https.HttpsURLConnectionImpl.getResponseCode(HttpsURLConnectionImpl.java:338)
at javaapplication1.JavaApplication1.main(JavaApplication1.java:56)
這是我使用來構建響應代碼
StringBuilder response;
try (BufferedReader in = new BufferedReader(
new InputStreamReader(connection.getInputStream()))) {
String inputLine;
response = new StringBuilder();
while ((inputLine = in.readLine()) != null) {
response.append(inputLine);
}
}
如果我理解你很希望得到一個HTTP響應的響應代碼?賴特? – thepaulo
我想獲取存儲在API上的響應消息 – MosaicOrange
如果調用的WS是一個SOAP對象,那麼您將爲未建模的故障和普通的異常子類獲得一個「SOAPFaultException」。請參閱[this](https://docs.oracle.com/cd/E24329_01/web.1211/e24965/faults.htm#WSADV623) –