Asp.net st危险的XML字符，这实际上与“Html编码”相去甚远，但我想您自己也知道：）欢迎使用堆栈溢出！请扩展您的答案，包括其他信息：这太短了。@Rez.Net：但是，请小心，这可能会并且将引发XML中未指定的有效html字符，如äö；或&复制；_Asp.net_Sql_Tsql

Asp.net st危险的XML字符，这实际上与“Html编码”相去甚远，但我想您自己也知道：）欢迎使用堆栈溢出！请扩展您的答案，包括其他信息：这太短了。@Rez.Net：但是，请小心，这可能会并且将引发XML中未指定的有效html字符，如äö；或&复制；

asp.net sql tsql

Asp.net st危险的XML字符，这实际上与“Html编码”相去甚远，但我想您自己也知道：）欢迎使用堆栈溢出！请扩展您的答案，包括其他信息：这太短了。@Rez.Net：但是，请小心，这可能会并且将引发XML中未指定的有效html字符，如äö；或&复制；,asp.net,sql,tsql,Asp.net,Sql,Tsql,st危险的XML字符，这实际上与“Html编码”相去甚远，但我想您自己也知道：）欢迎使用堆栈溢出！请扩展您的答案，包括其他信息：这太短了。@Rez.Net：但是，请小心，这可能会并且将引发XML中未指定的有效html字符，如äö；或&复制；或éâ&欧利格ç&ω&斯兹利格æ&欧利格&恩蒂尔德；从2009年开始，没有人评论这是错误的？试试 string htmlEncodedStr = System.Web.HttpUtility.Html

st危险的XML字符，这实际上与“Html编码”相去甚远，但我想您自己也知道：）欢迎使用堆栈溢出！请扩展您的答案，包括其他信息：这太短了。@Rez.Net：但是，请小心，这可能会并且将引发XML中未指定的有效html字符，如äö；或&复制；或éâ&欧利格ç&ω&斯兹利格æ&欧利格&恩蒂尔德；从2009年开始，没有人评论这是错误的？试试


string htmlEncodedStr = System.Web.HttpUtility.HtmlEncode(yourRawStringVariableHere);
string decodedRawStr =  System.Web.HttpUtility.HtmlDecode(htmlEncodedStr);

<%# System.Web.HttpUtility.HtmlEncode(Eval("YourColumnNameHere")) %>

CREATE FUNCTION HtmlEncode
(
    @UnEncoded as varchar(500)
)
RETURNS varchar(500)
AS
BEGIN
    DECLARE @Encoded as varchar(500)   
    SELECT @Encoded = Replace(@UnEncoded,'<','&lt;')
    SELECT @Encoded = Replace(@Encoded,'>','&gt;')
    SELECT @Encoded = Replace(@Encoded,'&','&amp;')   
    RETURN @Encoded    
END

Select Ref,dbo.HtmlEncode(RecID) from Customers

CREATE FUNCTION HtmlEncode
(
    @UnEncoded as varchar(500)
)
RETURNS varchar(500)
AS
BEGIN
  DECLARE @Encoded as varchar(500)

  --order is important here. Replace the amp first, then the lt and gt. 
  --otherwise the &lt will become &amp;lt; 
  SELECT @Encoded = 
  Replace(
    Replace(
      Replace(@UnEncoded,'&','&amp;'),
    '<', '&lt;'),
  '>', '&gt;')

  RETURN @Encoded
END
GO

DECLARE @s NVARCHAR(100)
SET @s = '<html>unsafe & safe Utf8CharsDon''tGetEncoded ÄöÜ - "Conex"<html>'
SELECT (SELECT @s FOR XML PATH(''))

SELECT 
    FIELD_NAME  
    ,(SELECT FIELD_NAME AS [text()] FOR XML PATH('')) AS FIELD_NAME_HtmlENcoded 
FROM TABLE_NAME

SELECT CAST('<root>' + '&lt;root&gt;Test&amp;123' + '</root>' AS XML).value(N'(root)[1]', N'varchar(max)');

using System;
using System.Collections.Generic;
using System.Text;

using Microsoft.SqlServer.Server;
using System.Data.SqlTypes;
//using Microsoft.SqlServer.Types;


namespace ClrFunctionsLibrary
{


    public class Test
    {


        [Microsoft.SqlServer.Server.SqlFunction]
        public static SqlString HtmlEncode(SqlString sqlstrTextThatNeedsEncoding)
        {
            string strHtmlEncoded = System.Web.HttpUtility.HtmlEncode(sqlstrTextThatNeedsEncoding.Value);
            SqlString sqlstrReturnValue = new SqlString(strHtmlEncoded);

            return sqlstrReturnValue;
        }


        [Microsoft.SqlServer.Server.SqlFunction]
        public static SqlString HtmlDecode(SqlString sqlstrHtmlEncodedText)
        {
            string strHtmlDecoded = System.Web.HttpUtility.HtmlDecode(sqlstrHtmlEncodedText.Value);
            SqlString sqlstrReturnValue = new SqlString(strHtmlDecoded);

            return sqlstrReturnValue;
        }


        // ClrFunctionsLibrary.Test.GetPassword
        //[Microsoft.SqlServer.Server.SqlFunction]
        //public static SqlString GetPassword(SqlString sqlstrEncryptedPassword)
        //{
        //    string strDecryptedPassword = libPortalSecurity.AperturePortal.DecryptPassword(sqlstrEncryptedPassword.Value);
        //    SqlString sqlstrReturnValue = new SqlString(sqlstrEncryptedPassword.Value + "hello");

        //    return sqlstrReturnValue;
        //}

        public const double SALES_TAX = .086;

        // http://msdn.microsoft.com/en-us/library/w2kae45k(v=vs.80).aspx
        [SqlFunction()]
        public static SqlDouble addTax(SqlDouble originalAmount)
        {
            SqlDouble taxAmount = originalAmount * SALES_TAX;

            return originalAmount + taxAmount;
        }


    } // End Class Test


} // End Namespace ClrFunctionsLibrary

GO

/*
--http://stackoverflow.com/questions/72281/error-running-clr-stored-proc
-- For unsafe permission
EXEC sp_changedbowner 'sa'
ALTER DATABASE YOUR_DB_NAME SET TRUSTWORTHY ON 

GO
*/


IF  EXISTS (SELECT * FROM sys.objects WHERE object_id = OBJECT_ID(N'[dbo].[HtmlEncode]') AND type in (N'FN', N'IF', N'TF', N'FS', N'FT'))
DROP FUNCTION [dbo].[HtmlEncode]
GO


IF  EXISTS (SELECT * FROM sys.objects WHERE object_id = OBJECT_ID(N'[dbo].[HtmlDecode]') AND type in (N'FN', N'IF', N'TF', N'FS', N'FT'))
DROP FUNCTION [dbo].[HtmlDecode]
GO




IF  EXISTS (SELECT * FROM sys.assemblies asms WHERE asms.name = N'ClrFunctionsLibrary' and is_user_defined = 1)
DROP ASSEMBLY [ClrFunctionsLibrary]

GO


--http://msdn.microsoft.com/en-us/library/ms345101.aspx



CREATE ASSEMBLY [ClrFunctionsLibrary]
AUTHORIZATION [dbo]
FROM 'D:\username\documents\visual studio 2010\Projects\ClrFunctionsLibrary\ClrFunctionsLibrary\bin\Debug\ClrFunctionsLibrary.dll' 
WITH PERMISSION_SET = UNSAFE  --EXTERNAL_ACCESS  --SAFE
;

GO




CREATE FUNCTION [dbo].[HtmlDecode](@value [nvarchar](max))
RETURNS [nvarchar](max) WITH EXECUTE AS CALLER
AS 
-- [AssemblyName].[Namespace.Class].[FunctionName]
EXTERNAL NAME [ClrFunctionsLibrary].[ClrFunctionsLibrary.Test].[HtmlDecode]
GO





CREATE FUNCTION [dbo].[HtmlEncode](@value [nvarchar](max))
RETURNS [nvarchar](max) WITH EXECUTE AS CALLER
AS 
-- [AssemblyName].[Namespace.Class].[FunctionName]
EXTERNAL NAME [ClrFunctionsLibrary].[ClrFunctionsLibrary.Test].[HtmlEncode]
GO



/*
EXEC sp_CONFIGURE 'show advanced options' , '1';
 GO
 RECONFIGURE;
 GO
 EXEC sp_CONFIGURE 'clr enabled' , '1'
 GO
 RECONFIGURE;
 GO

EXEC sp_CONFIGURE 'show advanced options' , '0';
 GO
 RECONFIGURE;
*/

SELECT
     dbo.HtmlEncode('helloäÖühello123') AS Encoded
    ,dbo.HtmlDecode('hello&auml;&Ouml;&uuml;hello123') AS Decoded 

public const double SALES_TAX = 1.086;

// http://msdn.microsoft.com/en-us/library/w2kae45k(v=vs.80).aspx
[SqlFunction()]
public static SqlDouble addTax(SqlDouble originalAmount)
{
     return originalAmount * SALES_TAX;
}

DECLARE @encodedString VARCHAR(MAX)

SET @encodedString = 'give your html string you want to encode'

SELECT @encodedString
SELECT (SELECT @encodedString FOR XML PATH(''))
---store unicode chars into a table so you can replace those characters withthe decimal value

`

--loop from 0 to highest unicode value you want and dump to the table you created
DECLARE @x INT = 0;
WHILE @x <= 65535
    BEGIN
        BEGIN
            INSERT INTO #UnicodeCharacters(DecimalValue, UnicodeCharacter)
            SELECT  @x,NCHAR(@x)
        END
        ;

        SET @x = @x + 1
        ;
    END
;

--index for fast retrieval
CREATE CLUSTERED INDEX CX_UnicodeCharacter_DecimalValue ON #UnicodeCharacters(UnicodeCharacter, DecimalValue);

--this is the string that you want to html-encode...
DECLARE @String NVARCHAR(100) = N'人This is a test - Ñ';

--other vars
DECLARE @NewString NVARCHAR(100) = '';
DECLARE @Word TABLE(Character NCHAR(1));
DECLARE @Pos INT = 1;

--run through the string and check each character to see if it is outside the regex expression
WHILE @Pos <= LEN(@String)
BEGIN
    DECLARE @Letter NCHAR(1) = SUBSTRING(@String,@Pos,1);
    PRINT @Letter;
    --rebuild the string replacing each unicode character outside the regex with &#[unicode value];
    SELECT  @NewString = @NewString + 
                CASE 
                    WHEN @Letter LIKE N'%[0-9abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ-!@#$%^&*()_+-= ]%' THEN @Letter
                    ELSE '&#' + CAST(uc.DecimalValue AS VARCHAR(10)) + ';'
                END
    FROM    #UnicodeCharacters uc
    WHERE   @Letter = uc.UnicodeCharacter COLLATE JAPANESE_UNICODE_BIN

    SET @Pos += 1
END

--end result
SELECT @NewString
;