关于WEBSERVICE服务调用的问题

[heihei19811222]

我写了个WEBSERVICE,并发布在远程服务器上,里面的接口主要是用来取和写远程服务器上的数据库内容,现在有个情况就是,客户端都是内网的,无法连接WEBSERVICE服务,所以我打算在内网服务器上再发布个同样接口的WEBSERVICE,利用这个内望发布的服务函数去调用远端发布的服务函数,我不知道这样是否可行,因为我也是新手



但测试后发现内望发布的WEBSERVCE在调用远端发布的服务的时候总是报错:

vWSObj := CreateOleObject('MSSOAP.SoapClient');
  vWSObj.mssoapinit('http://xx.xx.xx.x/DataSynch/Ds.dll/wsdl/IDataSynch');
  try
    try
       vWSObj.HandShake;
    except
      Result := 1;
    end;
  finally
    vWSObj := Unassigned;
  end;

在创建CreateOleObject('MSSOAP.SoapClient');时总是报,错误类型的字符串,我已经引用了COMOBJ

而且我单独在EXE里调用远端服务又都是OK的,随知道为什么?

[hanks_gao]

用THTTPRIO控件調用下試試！

[heihei19811222]

没人知道么？不会吧？自己顶

[kye_jufei]

給個demo供參考：

// ************************************************************************ //
// The types declared in this file were generated from data read from the
// WSDL File described below:
// WSDL     : http://172.20.100.10/test/service.asmx?wsdl
//  >Import : http://172.20.100.10/test/service.asmx?wsdl:0
// Encoding : utf-8
// Version  : 1.0
// (2010/6/22 上午 11:31:35 - - $Rev: 10138 $)
// ************************************************************************ //

unit service;

interface

uses InvokeRegistry, SOAPHTTPClient, Types, XSBuiltIns;

const
  IS_OPTN = $0001;
  IS_REF  = $0080;


type

  // ************************************************************************ //
  // The following types, referred to in the WSDL document are not being represented
  // in this file. They are either aliases[@] of other types represented or were referred
  // to but never[!] declared in the document. The types from the latter category
  // typically map to predefined/known XML or Borland types; however, they could also 
  // indicate incorrect WSDL documents that failed to declare or import a schema type.
  // ************************************************************************ //
  // !:string          - "http://www.w3.org/2001/XMLSchema"[Gbl]



  // ************************************************************************ //
  // Namespace : Kye
  // soapAction: Kye/HelloWorld
  // transport : http://schemas.xmlsoap.org/soap/http
  // style     : document
  // binding   : ServiceSoap
  // service   : Service
  // port      : ServiceSoap
  // URL       : http://172.20.100.10/test/service.asmx
  // ************************************************************************ //
  ServiceSoap = interface(IInvokable)
  ['{B82FAFBA-EAB8-AD5C-2535-FB6046355616}']
    function  HelloWorld(const name_: WideString): WideString; stdcall;
  end;

function GetServiceSoap(UseWSDL: Boolean=System.False; Addr: string=''; HTTPRIO: THTTPRIO = nil): ServiceSoap;


implementation
  uses SysUtils;

function GetServiceSoap(UseWSDL: Boolean; Addr: string; HTTPRIO: THTTPRIO): ServiceSoap;
const
  defWSDL = 'http://172.20.100.10/test/service.asmx?wsdl';
  defURL  = 'http://172.20.100.10/test/service.asmx';
  defSvc  = 'Service';
  defPrt  = 'ServiceSoap';
var
  RIO: THTTPRIO;
begin
  Result := nil;
  if (Addr = '') then
  begin
    if UseWSDL then
      Addr := defWSDL
    else
      Addr := defURL;
  end;
  if HTTPRIO = nil then
    RIO := THTTPRIO.Create(nil)
  else
    RIO := HTTPRIO;
  try
    Result := (RIO as ServiceSoap);
    if UseWSDL then
    begin
      RIO.WSDLLocation := Addr;
      RIO.Service := defSvc;
      RIO.Port := defPrt;
    end else
      RIO.URL := Addr;
  finally
    if (Result = nil) and (HTTPRIO = nil) then
      RIO.Free;
  end;
end;


initialization
  InvRegistry.RegisterInterface(TypeInfo(ServiceSoap), 'Kye', 'utf-8');
  InvRegistry.RegisterDefaultSOAPAction(TypeInfo(ServiceSoap), 'Kye/HelloWorld');
  InvRegistry.RegisterInvokeOptions(TypeInfo(ServiceSoap), ioDocument);
  InvRegistry.RegisterExternalParamName(TypeInfo(ServiceSoap), 'HelloWorld', 'name_', 'name');

end.

[kye_jufei]

調用：

unit Unit1;

interface

uses
Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
Dialogs,service, StdCtrls;

type
TForm1 = class(TForm)
btn1: TButton;
edt1: TEdit;
Label1: TLabel;
procedure btn1Click(Sender: TObject);
private
aa:ServiceSoap;
{ Private declarations }
public
{ Public declarations }
end;

var
Form1: TForm1;

implementation

{$R *.dfm}

procedure TForm1.btn1Click(Sender: TObject);
begin
aa:=GetServiceSoap(False,'',nil);
ShowMessage(aa.HelloWorld(edt1.Text));
end;

end.

[gwhdaxia]

我前段时间尝试过java做的webservice调用jave的webservice，是没问题的

[寻_风]

我觉得你这个关键不是怎么调用的问题，而是网络问题，如果你的内网能访问到远程webservice服务就OK了，就类似4楼代码里的“defURL = 'http://172.20.100.10/test/service.asmx'”，能访问到，就能调用。