c# url传参不能包含html标签,c＃解析包含HTML特殊字符的字符串XElement
在客戶端的服務(wù)器+ GWT上使用.NET c＃，我有一個Web窗體，它接受用戶輸入，然后構(gòu)建一個XML字符串并將其存儲在數(shù)據(jù)庫中。然后我需要從數(shù)據(jù)庫中讀取它，通過tcp將它發(fā)送到手持設(shè)備，并將其解析為XElement。一切運(yùn)作良好，直到您從Word中復(fù)制和粘貼文本或在這種情況下脫穎而出，當(dāng)我嘗試這樣做：c＃解析包含HTML特殊字符的字符串XElement
XElement.parse(str);
它拋出一個異常：
'.', hexadecimal value 0x00, is an invalid character. Line 132, position 111.
例字符，將導(dǎo)致此問題是正確的撇號字符(0x2019)。現(xiàn)在可能會有一大堆特殊字符可能從excel/word復(fù)制粘貼等。處理此問題的最佳方法是什么？下面是我如何構(gòu)建從流串：
protected CallResult callUsingSocketClass(string methodName, params Action[] addParameters)
{ WebServicesClient.Debug.DebugMessage(WebServicesClient.Debug.MASK_ENTRY_EXIT， “++調(diào)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
代碼不完整。 'replyLength'在哪里定義？在這個例子中你有一個無盡的'for'循環(huán)。 –
2011-03-29 10:03:41
+0
好的，我已經(jīng)粘貼了現(xiàn)在在這里完成這項工作的方法。從第70行開始，你可以看到我如何建立字符串。 –
2011-03-29 10:17:21
+0
你從WebServicesClient.Debug.DebugMessage(WebServicesClient.Debug.MASK_RPC_CALL，“RPC(Method = {0}，replyContent ='{1}')”，methodName，replyContent)獲得了什么輸出結(jié)果？' –
2011-03-29 10:28:29
總結(jié)
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