三段过滤字段html的mssql函数代码转发
sql 过滤html 标签--方法
create function [dbo].[clearhtml_a] (@maco varchar(8000))
returns varchar(8000) as begin
declare @i int
while 1 = 1
begin
set @i=len(@maco)
set @maco=replace(@maco, substring(@maco,charindex('<a',@maco),
charindex('a>',@maco)-charindex('<a',@maco)+1),space(0))
if @i=len( @maco )
break
end
set @maco=replace(@maco,' ','')
set @maco=replace(@maco,' ','')
set @maco=ltrim(rtrim(@maco))
set @maco=replace(@maco,char(9),'')
set @maco=replace(@maco,char(10),'')
set @maco=replace(@maco,char(13),'')
return (@maco)
end
--测试
declare @mark varchar(8000)
set @mark='输入代码html标志的内容'
select dbo.clearhtml (@mark)
--加强版
create function [dbo].[clearhtml_V2] (@maco varchar(8000))
returns varchar(8000)
as
begin
declare @randchar_one nvarchar(200)
declare @randchar_two nvarchar(200)
if(charindex('<<',@maco)>0)
begin
set @randchar_one='D4678B36-B958-4274-B81E-BBA636CFB427';
set @randchar_two='49E374CC-9E1A-4850-897C-27074DE32E7F';
set @maco=replace(@maco,'<<',@randchar_one)
set @maco=replace(@maco,'>>',@randchar_two)
end
declare @i int
while 1 = 1
begin
set @i=len(@maco)
set @maco=replace(@maco, substring(@maco,charindex('<',@maco),
charindex('>',@maco)-charindex('<',@maco)+1),space(0))
if @i=len( @maco )
break
end
set @maco=replace(@maco,' ','')
set @maco=replace(@maco,' ','')
set @maco=ltrim(rtrim(@maco))
set @maco=replace(@maco,char(9),'')
set @maco=replace(@maco,char(10),'')
set @maco=replace(@maco,char(13),'')
if(charindex(@randchar_one,@maco)>0)
begin
set @maco=replace(@maco,'D4678B36-B958-4274-B81E-BBA636CFB427','<<')
set @maco=replace(@maco,'49E374CC-9E1A-4850-897C-27074DE32E7F','>>')
end
return (@maco)
end
--测试
select dbo.clearhtml_V2('输入代码html标志的内容然后过滤')
--完整版
ALTER FUNCTION [dbo].[CleanHTML] (@HTMLText VARCHAR(MAX))
RETURNS VARCHAR(MAX) AS
BEGIN
DECLARE @Start INT
DECLARE @End INT
DECLARE @Length INT
SET @Start = CHARINDEX('<',@HTMLText)
SET @End = CHARINDEX('>',@HTMLText,CHARINDEX('<',@HTMLText))
SET @Length = (@End - @Start) + 1
WHILE @Start > 0 AND @End > 0 AND @Length > 0
BEGIN
SET @HTMLText = STUFF(@HTMLText,@Start,@Length,'')
SET @Start = CHARINDEX('<',@HTMLText)
SET @End = CHARINDEX('>',@HTMLText,CHARINDEX('<',@HTMLText))
SET @Length = (@End - @Start) + 1
END
set @HTMLText=replace(@HTMLText,'<','')
set @HTMLText=replace(@HTMLText,'>','')
RETURN LTRIM(RTRIM(@HTMLText))
END
select [dbo].DeHtmlize('输入代码html标志的内容然后过滤')