It took some time to implement communication with SOAP WebServices in legacy applications written in Delphi 6 . The WebServices that I needed to communicate with these systems were written in Delphi (newer versions with unicode) and C # (asax) .
Unfortunately, I was unable to use the components of the Delphi 6 WebServices palette, but I was able to copy all the units from the Delphi 7 WebServices palette and added them to Delphi 6 applications . I needed to make several adjustments.
Communication has worked well. There are still no problems with communicating systems with WebServices available in C # .
The same process performed on several clients works without problems, but this same process has had problems with two or three clients. This is a WebService written with Delphi (in newer versions) .
The error I believe to be specific. In a given request the following exception is thrown:
Itsaysthatitwasnotpossibletofindthecharacterthatcloses/determinestheclosingofatag.Themessagesaysthattheerrorisinline2oftherequest.
Then,ItriedtoparsetheXMLthatisbeinggenerated:
<?xmlversion="1.0"?>
<SOAP-ENV:Envelope xmlns:SOAP-ENC="http://schemas.xmlsoap.org/soap/encoding/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:SOAP ENV="http://schemas.xmlsoap.org/soap/envelope/">
<SOAP-ENV:Header xmlns:NS1="urn:UntSecurityHeader" SOAP-ENV:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/">
<NS1:TSecurityHeader xsi:type="NS1:TSecurityHeader">
<Identification xsi:type="xsd:string">2C0463C3BFC0DC44385BA3</Identification>
</NS1:TSecurityHeader>
</SOAP-ENV:Header>
<SOAP-ENV:Body SOAP-ENV:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/">
<NS2:Obter xmlns:NS2="urn:UntContracts-IContainerContract">
<ContainerID xsi:type="xsd:int">0</ContainerID>
<ContratoID xsi:type="xsd:int">0</ContratoID>
</NS2:Obter>
</SOAP-ENV:Body>
</SOAP-ENV:Envelope>
This XML, opened by Notepad, copied and pasted here looks exactly like this:
<?xml version="1.0"?><SOAP-ENV:Envelope xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:SOAP-ENC="http://schemas.xmlsoap.org/soap/encoding/"><SOAP-ENV:Header SOAP-ENV:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/" xmlns:NS1="urn:UntSecurityHeader"><NS1:TSecurityHeader xsi:type="NS1:TSecurityHeader"><Identification xsi:type="xsd:string">2C0463C3BFC0DC44385BA3</Identification></NS1:TSecurityHeader></SOAP-ENV:Header><SOAP-ENV:Body SOAP-ENV:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/"><NS2:Obter xmlns:NS2="urn:UntContracts-IContainerContract"><ContainerID xsi:type="xsd:int">0</ContainerID><ContratoID xsi:type="xsd:int">0</ContratoID></NS2:Obter></SOAP-ENV:Body></SOAP-ENV:Envelope>
That is, all in one line.
Opened by IE, it looks like this:
I know the image was very small, but I wanted to put it here to appear exactly as it is in IE.
Making a ZOOM in the browser allows you to clearly see the content.
I decided to put this image to demonstrate that it is exactly in the second line that IE breaks the text in two lines. I do not know if there is any or if the break is just referring to the formatting of the browser to not exceed the size of the document.
Another detail I would like to add is that when working with the WebService done in Delphi I usually have problems with accentuation, in short, special characters. Already with WebServices in C # this does not happen.
Both WebService suites have been written and published by me.
I tried to manipulate XML by removing line break characters, replacing #13#10 , thinking that it could be a problem of interpretation between character sets. But it did not work either.
I emphasize that in just a few clients, with Windows XP to Seven systems, the problem occurs.
Can it be a character type problem? The strange thing is not to have had this type of problem with the WebServices written in C #.