错误代码706的Java

Question

签约使用Web代理PDF时，当测试在Java Web代理样品，我得到一个错误的回复

<?xml version="1.0" encoding="utf-8"?> 
<response xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" type="error"> 
    <Error> 
    <returnCode>706</returnCode> 
    <errorMessage>Value cannot be null. 
Parameter name: s</errorMessage> 
    </Error> 
</response> 

我跟着余弦Web代理样本和documentation在Ruby例子

我已经使用样本中提供的demo.pdf文件。

这是在POST请求中发送的XML（从test app）（<content></content>具有Base64编码的PDF，但由于长度而被省略）。

<?xml version="1.0" encoding="utf-8" ?> 
<request> 
    <Logic> 
    <allowAdHoc>true</allowAdHoc> 
    <workingMode>pull</workingMode> 
    <enforceReason>false</enforceReason> 
    </Logic> 
    <Url> 
    <finishURL>http://localhost:64956/retrieveSignedFile.aspx</finishURL> 
    </Url> 
    <Document> 
    <fileID>1234567890</fileID> 
    <contentType>pdf</contentType> 
    <content>{BASE64 encoded pdf content}</content> 
    </Document> 
</request> 

以下是Java代码我已经使用：

public class CoSignTest { 
    private static final String INPUT = "D:\\tmp\\demo.pdf"; 
    private static final String PRECONTENT = "<?xml version=\"1.0\" encoding=\"utf-8\" ?>\n" + 
      "<request>\n" + 
      " <Logic>\n" + 
      " <allowAdHoc>true</allowAdHoc>\n" + 
      " <workingMode>pull</workingMode>\n" + 
      " <enforceReason>false</enforceReason>\n" + 
      " </Logic>\n" + 
      " <Url>\n" + 
      " <finishURL>http://localhost:64956/retrieveSignedFile.aspx</finishURL>\n" + 
      " </Url>\n" + 
      " <Document>\n" + 
      " <fileID>1234567890</fileID>\n" + 
      " <contentType>pdf</contentType>\n" + 
      " <content>"; 
    private static final String POSTCONTENT = "</content>\n" + 
      " </Document>\n" + 
      "</request>"; 
    private static final String POST_URL = "https://webagentdev.arx.com/Sign/UploadFileToSign"; 
    private static final String PULL_URL = "https://webagentdev.arx.com/Sign/DownloadSignedFileG"; 
    public static final int TIMEOUT = 300000; 

    public static void main(String[] args) throws Exception { 
     InputStream is = new FileInputStream(INPUT); 
     String content = PRECONTENT + new String(Base64.encodeBase64(loadResource(is)), "UTF-8") + POSTCONTENT; 
     System.out.println(content); 
     String reply = new String(sendDocForProcessing(URLEncoder.encode(content, "UTF-8"))); 
     System.out.println(reply); 
     System.out.println("DONE"); 
    } 

    private static String sendDocForProcessing(String content) throws Exception { 
     HttpClient client = null; 
     HttpMethodBase method = null; 
     SimpleHttpConnectionManager mgr = new SimpleHttpConnectionManager(); 
     String reply = ""; 
     try { 
      mgr.getParams().setConnectionTimeout(TIMEOUT); 
      mgr.getParams().setSoTimeout(TIMEOUT); 
      client = new HttpClient(mgr); 
      method = new PostMethod(POST_URL); 
      method.getParams().setParameter(HttpMethodParams.RETRY_HANDLER, new DefaultHttpMethodRetryHandler(1, false)); 
      method.getParams().setParameter("http.socket.timeout", TIMEOUT); 
      client.getHttpConnectionManager().getParams().setConnectionTimeout(TIMEOUT); 
      client.getParams().setCookiePolicy(CookiePolicy.BROWSER_COMPATIBILITY); 
      method.setRequestHeader("Content-Type", "application/x-www-form-urlencoded"); 
      method.getParams().setParameter("inputXML", content); 
      client.executeMethod(method); 
      reply = new String(method.getResponseBody()); 
     } catch (Exception e) { 
      e.printStackTrace(); 
     } finally { 
      if(method != null) { 
       method.releaseConnection(); 
      } 
      client = null; 
      mgr.shutdown(); 
     } 
     if (isSigningSuccessful(reply)) { 
      return reply; 
     } else { 
      throw new Exception("Failed in signing the document. Error: " + reply); 
     } 
    } 

    private static boolean isSigningSuccessful(String reply) throws ParserConfigurationException, IOException, SAXException { 
     DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance(); 
     DocumentBuilder db = dbf.newDocumentBuilder(); 
     Document doc = db.parse(new ByteArrayInputStream(reply.getBytes())); 
     Element elem = doc.getDocumentElement(); 
     String type = elem.getAttribute("type"); 
     return !"error".equals(type); 
    } 


    public static byte[] loadResource(InputStream in) { 
     if (in == null) { 
      return new byte[0]; 
     } 
     try { 
      int indice, tempIndice; 
      byte[] tempArr; 
      byte[] mainArr = new byte[0]; 
      byte[] byteArr = new byte[65535]; 
      for (indice = 0; (indice = in.read(byteArr)) > 0;) { 
       tempIndice = mainArr.length + indice; 
       tempArr = new byte[tempIndice]; 
       System.arraycopy(mainArr, 0, tempArr, 0, mainArr.length); 
       System.arraycopy(byteArr, 0, tempArr, mainArr.length, indice); 
       mainArr = tempArr; 
      } 
      in.close(); 
      return mainArr; 
     } catch (Exception e) { 
      e.printStackTrace(); 
     } 
     return new byte[0]; 
    } 
} 

Answer 1

感谢您添加您的Java代码。请注意，HttpClient实例配置不正确，因此http-post请求被发送为空。看看我在你sendDocForProcessing功能，以便正确地发布XML内容做了修改：

private static String sendDocForProcessing(String content) throws Exception { 
    HttpClient client = null; 
    PostMethod method = null; 
    String reply = ""; 
    try { 
     client = new HttpClient(); 
     method = new PostMethod(POST_URL); 
     method.setRequestHeader("Content-Type", "application/x-www-form-urlencoded"); 
     NameValuePair[] data = { new NameValuePair("inputXML", content) }; 
     method.setRequestBody(data); 
     client.executeMethod(method); 
     reply = method.getResponseBodyAsString(); 
    } catch (Exception e) { 
     e.printStackTrace(); 
    } finally { 
     if(method != null) { 
      method.releaseConnection(); 
     } 
    } 
    if (isSigningSuccessful(reply)) { 
     return reply; 
    } else { 
     throw new Exception("Failed in signing the document. Error: " + reply); 
    } 
} 

通过上述功能的内容不应该被URL编码，因为它已经由HttpClient库完成。

另外，在分析响应时，我建议您检查returnCode元素的值，而不是type属性。响应总是输入'错误'。 另请注意，功能名称isSigningSuccessful具有误导性，因为此阶段仍处于签名行为之前。

Answer 2

的XML元素是大小写敏感的并且如图所示在documentation（例如Document代替document必须被传递，Auth代替auth等等）。另外，您的XML请求缺少必需的finishURL参数。

另请注意，XML请求中的某些参数已过时。请参阅上面链接中更新的请求参数列表。示例XML可用here。