SQL Server 2014-使用西里尔字符解析XML [英] SQL Server 2014 - Parsing XML with Cyrillic Characters

问题描述

我正在解析xml文件，但是西里尔字符有问题：

I'm parsing an xml file but have problem with cyrillic characters:

这是存储过程的相关部分

this is the relevant part of the stored Procedure

要解析的SOAP输入：

SOAP input to parse:

'<?xml version="1.0"?>
<soapenv:Envelope xmlns:.......>
    <soapenv:Header>
    </soapenv:Header>
    <soapenv:Body>
        <GetResponse>
            <BuyerInfo>
              <Name>Polydoros Stoltidys</Name>
              <Street>Луговой проезд дом 4 корпус 1 квартира 12</Street>
            </BuyerInfo>
        </GetResponse>
    </soapenv:Body>
</soapenv:Envelope>'

存储过程

 CREATE PROCEDURE dbo.spXML_ParseSOAP
(
    @XML    XML
)
AS
SET NOCOUNT ON;
DECLARE @S nvarchar(max)='',
        @C  nvarchar(max)='',
        @D  nvarchar(max)=''


    SELECT 
        @C= IIF (CHARINDEX('['+T.X.value('local-name(.)', 'nvarchar(100)')+']',@C)=0, CONCAT( ISNULL(@C + ',','') , QUOTENAME(T.X.value('local-name(.)', 'nvarchar(100)'))), @C),
        @D= IIF (CHARINDEX('['+T.X.value('local-name(.)', 'nvarchar(100)')+']',@CP)=0, CONCAT( ISNULL(@D + ',N','') , '''',  T.X.value(N'text()[1]', 'nvarchar(max)'),''''), @D),
    FROM @XML.nodes('//*[count(child::*) = 0]') AS T(X)
    WHERE  T.X.value(N'local-name(.)', 'nvarchar(500)') 
    IN (select name from Customers.sys.columns where [object_id]=@O and is_identity=0)

    SET @S=N'INSERT INTO Sales.dbo.ShippingAddress ('+@C+',ShippingAddressID) VALUES ('+@D+','''+@FADR+''') 

    Print @S

问题是@S看起来像这样

the problem is that @S looks like this

INSERT INTO Sales.dbo.ShippingAddress ([Name],[Street1],ShippingAddressID) 
VALUES 
(N'Polydoros Sample',N'??????? ?????? ??? 4 ?????? 1 ???????? 12','KkQ0LhbhwXfzi+Ko1Ai6s+SDZRT2kYhYC3vM2x2TB5Y=') 

其中西里尔字母转换为???

where Cyrillic Charachters are transformed into ???

我把N放在所有输入之前，但问题显然在前面：
我想是在

I put the N before all input but problem is clearly before: I can suppose is in the

    T.X.value(N'text()[1]', 'nvarchar(max)')

但我不知道如何解决。

可以提出解决方案吗？

谢谢

推荐答案

您的 DECLARE @XML 行是错误。字符串文字需要以大写字母 N 作为前缀。字符将转换为？

Your DECLARE @XML line is wrong. The string literal needs to be prefixed with a capital N. The characters are getting converted to ? in the interpretation of that literal.

此外，您还没有在所有字符串文字前加上大写的 N 前缀，但是您至少要有一个前缀（ SET @S = N'行中的第一个前缀，其余的字面量（ VARCHAR 不带 N 前缀）将隐式转换为 NVARCHAR 。

Also, you have not prefixed all string literals with a capital-N, but you have at least one of them prefixed (the first one in the SET @S = N' line, and so the rest of the literals (which are VARCHAR without the N prefix) will be implicitly converted to NVARCHAR.

对更新后的代码进行的以下修改显示了此行为，以及如何在输入字符串上放置 N 前缀（

The following adaptation of your updated code shows this behavior, and how placing the N prefix on the input string (prior to calling the Stored Procedure) fixes the problem:

DECLARE @XML XML = N' <!-- remove the N from the left to get all ???? for "Street"-->
            <BuyerInfo>
              <Name>Polydoros Stoltidys</Name>
              <Street>Луговой проезд дом 4 корпус 1 квартира 12</Street>
            </BuyerInfo>
';


DECLARE @S nvarchar(max)='',
        @C  nvarchar(max)='Street',
        @D  nvarchar(max)=''


    SELECT 
        @D= IIF (T.X.value('local-name(.)', 'nvarchar(100)') = N'Street',
                 T.X.value('./text()[1]', 'nvarchar(100)'),
                 @C)
    FROM @XML.nodes('//*[count(child::*) = 0]') AS T(X)

    SET @S=N'INSERT INTO Sales.dbo.ShippingAddress ('
           +  @C+',ShippingAddressID) VALUES (N'''+@D+''',''a'') '

    Print @S;

此外，SQL Server XML从未存储<？xml。 ..？> 声明行，因此您最好将其从文字值的开头删除。

Also, SQL Server XML does not ever store the <?xml ... ?> declaration line, so you might as well remove it from the beginning of the literal value.

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