我有一个问题,涉及Indy IdHttp Post方法。使用Delphi 2007编译的Function CallRpc()正常工作,但是使用Delphi 2010编译的相同代码会引发异常。
当我将Delphi 2007的Indy TIdHttp更改为Delphi 2010的Indy TIdHttp时,我需要考虑什么?
解决方案 2009年1月26日:
当我将Delphi 2007的Indy TIdHttp更改为Delphi 2010的Indy TIdHttp时,我需要考虑什么?
function CallRpc(const sURL, sXML: string): string;
var
SendStream : TStream;
IdHttp : TIdHttp;
begin
SendStream := TMemoryStream.Create;
IdHttp := TIdHttp.Create(nil);
try
IdHttp.Request.Accept := '*/*';
IdHttp.Request.ContentType := 'text/sXML';
IdHttp.Request.Connection := 'Keep-Alive';
IdHttp.Request.ContentLength := Length(sXML);
StringToStream(sXML, SendStream);
SendStream.Position := 0;
Result := IdHttp.Post(sURL, SendStream);
finally
IdHttp.Free;
SendStream.Free;
end;
end;
附加内容 2009年1月25日:
异常是:EIdConnClosedGracefully
响应如下:
<?xml version='1.0' encoding='us-ascii'?>
<!DOCTYPE Error [ <!ELEMENT Error (ErrorMessage,DebuggingInfo*)> <!ATTLIST Error Date CDATA #REQUIRED Time CDATA #REQUIRED> <!ELEMENT ErrorMessage (#PCDATA )> <!ELEMENT DebuggingInfo (#PCDATA )> ] >
<Error Date='01/25/2010' Time='08:57:12'>
<ErrorMessage>
XML SERVER ERROR: There was a SYSTEM ERROR error in the Incoming XML Response: $ZE=<UNDEFINED>lexan+196^%eXMLLexAnalyzer
</ErrorMessage>
解决方案 2009年1月26日:
function CallRpc(const sURL, sXML: string): string;
var
SendStream : TStream;
IdHttp : TIdHttp;
sAnsiXML: Ansistring; // <-- new
begin
sAnsiXML := sXML; // <-- new: Implicit string cast
SendStream := TMemoryStream.Create;
IdHttp := TIdHttp.Create(nil);
try
IdHttp.Request.Accept := '*/*';
IdHttp.Request.ContentType := 'text/sXML';
IdHttp.Request.Connection := 'Keep-Alive';
IdHttp.Request.ContentLength := Length(sAnsiXML); // <-- new
SendStream.Write(sAnsiXML[1], Length(sAnsiXML)); // <-- new
SendStream.Position := 0;
Result := IdHttp.Post(sURL, SendStream);
finally
IdHttp.Free;
SendStream.Free;
end;
结束;