谷歌翻譯Api錯誤414（Request-URI太大）java

在Google翻譯的Api for Java官方文檔中，它表示我們可以使用post-method發送超過2K個字符。 https://developers.google.com/translate/v2/using_rest 谷歌翻譯Api錯誤414（Request-URI太大）java

但是，當我嘗試翻譯超過2K長度的文本時，我得到錯誤414（請求 - URI太大）。

StringBuilder sb = new StringBuilder(); 
HttpURLConnection connection = null; 
try { 
    URL url = new URL("https://www.googleapis.com/language/translate/v2"); 
    String urlParameters = "key=" + apiKey + "&source=" + shortLang1 + 
      "&target=" + shortLang2 + "&q=" + URLEncoder.encode(lyrics, "UTF-8"); 
    connection = (HttpURLConnection) url.openConnection(); 
    connection.setRequestMethod("POST"); 
    connection.setDoInput(true); 
    connection.setDoOutput(true); 
    connection.setUseCaches (false); 
    connection.addRequestProperty("X-HTTP-Method-Override", "GET"); 
    DataOutputStream wr = new DataOutputStream (connection.getOutputStream()); 
    wr.writeBytes (urlParameters); 
    wr.flush(); 
    wr.close(); 
    BufferedReader reader = new BufferedReader(new InputStreamReader(connection.getInputStream(), "UTF-8")); 
    if (connection.getResponseCode() != 200) { 
     return null; 
    } 
    String line; 
    while ((line = reader.readLine()) != null) { 
      sb.append(line + "\n"); 
    } 
    reader.close(); 
} catch (Exception e) { 
    e.printStackTrace(); 
} finally { 
    if (connection != null) { 
     connection.disconnect(); 
    } 
}

更新：我得到了它，上面的代碼是正確的。最後，我意識到我得到的這個錯誤不是來自Google翻譯服務，而是來自我在Google App Engine上的代理。

來源

2013-08-23 user1049280