在客户端的服务器+ GWT上使用.NET c＃，我有一个Web窗体，它接受用户输入，然后构建一个XML字符串并将其存储在数据库中。然后我需要从数据库中读取它，通过tcp将它发送到手持设备，并将其解析为XElement。一切运作良好，直到您从Word中复制和粘贴文本或在这种情况下脱颖而出，当我尝试这样做：c＃解析包含HTML特殊字符的字符串XElement

XElement.parse(str);

它抛出一个异常：

'.', hexadecimal value 0x00, is an invalid character. Line 132, position 111.

例字符，将导致此问题是正确的撇号字符(0x2019)。现在可能会有一大堆特殊字符可能从excel/word复制粘贴等。处理此问题的最佳方法是什么？下面是我如何构建从流串：

protected CallResult callUsingSocketClass(string methodName, params Action[] addParameters)

{ WebServicesClient.Debug.DebugMessage(WebServicesClient.Debug.MASK_ENTRY_EXIT， “++调用({0}，...)”，方法名);

if (this.OnTransferring != null)

{

if (!this.OnTransferring())

{

return null;

}

}

CallParameters parameters = new CallParameters(this, methodName);

foreach (var addParameter in addParameters)

{

addParameter(parameters);

}

string post = this.CreatePost(parameters);

WebServicesClient.Debug.DebugMessage(WebServicesClient.Debug.MASK_RPC_CALL, "RPC(Method={0}, host={1}, port={2}, post='{3}')", methodName, this.Host, this.Port, post);

byte[] postBytes = Encoding.UTF8.GetBytes(post);

//

// Send the request and wait for the reply.

//

char[] replyContentChars = null;

for (int attempts = 0; attempts < 3; attempts++)

{

Socket socket = null;

try

{

WebServicesClient.Debug.DebugMessage(WebServicesClient.Debug.MASK_RPC_CALL, "RPC - creating socket for RPC call...");

if (this.OnTransferring != null)

{

if (!this.OnTransferring())

{

return null;

}

}

string hostID = this.Host;

if (this.HostIPAddress != null)

{

hostID = this.HostIPAddress;

}

using (socket = this.connectToServer(hostID, this.Port))

{

if (socket == null)

{

return null;

}

if (this.OnTransferring != null)

{

if (!this.OnTransferring())

{

return null;

}

}

WebServicesClient.Debug.DebugMessage(WebServicesClient.Debug.MASK_RPC_CALL, "RPC - socket created!");

WebServicesClient.Debug.DebugMessage(WebServicesClient.Debug.MASK_RPC_CALL, "RPC - communicating with server...");

WebServicesClient.Debug.DebugMessage(WebServicesClient.Debug.MASK_RPC_CALL, "RPC - writing post...");

this.sendDataToServer(socket, postBytes);

int replyLength = -1;

if (this.OnTransferring != null)

{

if (!this.OnTransferring())

{

return null;

}

}

WebServicesClient.Debug.DebugMessage(WebServicesClient.Debug.MASK_RPC_CALL, "RPC - reading reply...");

using (var reader = this.receiveStreamFromServer(socket))

{

if (this.OnTransferring != null)

{

if (!this.OnTransferring())

{

socket.Close();

socket = null;

return null;

}

}

for (; ;)

{

string lineRaw = reader.ReadLine().Trim();

string line = lineRaw.ToLowerInvariant();

if (line.StartsWith("content-length:"))

{

replyLength = int.Parse(line.Substring(15));

}

else if (line == "")

{

if (replyLength < 0)

{

throw new InvalidOperationException("Reply hasn't specified content-length");

}

break;

}

else

{

if (this.CookieJar != null)

{

this.CookieJar.ProcessFromServer(lineRaw);

}

}

}

// Content starts here

replyContentChars = new char[replyLength];

int replyRecv = 0;

do

{

int charsRecv = reader.Read(replyContentChars, replyRecv, replyLength - replyRecv);

if (charsRecv <= 0)

{

break;

}

replyRecv += charsRecv;

} while (replyRecv < replyLength);

//int charsRecv = reader.Read(replyContentChars, 0, replyLength);

if (replyRecv != replyLength)

{

untime.Logger.Logger.Error("Web Service call '{0}' received {1} bytes, header indicated {2} bytes", methodName, replyRecv, replyLength);

throw new InvalidOperationException(String.Format("Have not received all of reply data - received {0} bytes, expected {1}", replyRecv, replyLength));

}

}

socket.Close();

socket = null;

}

}

catch (Exception e)

{

WebServicesClient.Debug.DebugMessage(WebServicesClient.Debug.MASK_RPC_CALL, "RPC - exception thrown - {0} [{1},{2}]", e.Message, e.Source, e.StackTrace);

}

finally

{

if (socket != null)

{

socket.Close();

socket = null;

}

}

if (replyContentChars != null)

{

break;

}

if (this.OnTransferring != null)

{

if (!this.OnTransferring())

{

return null;

}

}

}

//

// Verify that data has been received.

//

if (replyContentChars == null)

{

return null;

}

if (this.OnTransferring != null)

{

if (!this.OnTransferring())

{

return null;

}

}

//

// Process the received data.

//

string replyContent = new string(replyContentChars);

WebServicesClient.Debug.DebugMessage(WebServicesClient.Debug.MASK_RPC_CALL, "RPC(Method={0}, replyContent='{1}')", methodName, replyContent);

XElement xReplyContent = XElement.Parse(replyContent);

var xReplyBody = xReplyContent.Element(nsSoap + "Body");

var xFault = xReplyBody.Element(nsSoap + "Fault");

if (xFault != null)

{

// Something has gone wrong on the server

var xFaultCode = xFault.Element(nsSoap + "Code");

var xFaultReason = xFault.Element(nsSoap + "Reason");

untime.Logger.Logger.Error("Web Service call to method '{0}' failed: Code='{1}', Reason='{2}'", methodName, (string)xFaultCode, (string)xFaultReason);

string faultCode = (string)xFaultCode;

var codeParts = faultCode.Split(':');

XmlQualifiedName xmlQualifiedName;

if (codeParts.Length == 2)

{

xmlQualifiedName = new XmlQualifiedName(codeParts[1], codeParts[0]);

}

else

{

xmlQualifiedName = new XmlQualifiedName(faultCode);

}

throw new SoapException((string)xFaultReason, xmlQualifiedName);

}

var xResponse = xReplyBody.Element(this.nsArgs + (methodName + "Response"));

var xResult = xResponse.Element(this.nsArgs + (methodName + "Result"));

if (this.OnTransferring != null)

{

if (!this.OnTransferring())

{

return null;

}

}

var result = new CallResult(xResult);

return result;

}

2011-03-28

Shahid

+0

代码不完整。 'replyLength'在哪里定义？在这个例子中你有一个无尽的'for'循环。 –

2011-03-29 10:03:41

+0

好的，我已经粘贴了现在在这里完成这项工作的方法。从第70行开始，你可以看到我如何建立字符串。 –

2011-03-29 10:17:21

+0

你从WebServicesClient.Debug.DebugMessage(WebServicesClient.Debug.MASK_RPC_CALL，“RPC(Method = {0}，replyContent ='{1}')”，methodName，replyContent)获得了什么输出结果？' –

2011-03-29 10:28:29