delphi 调用c#写关于a+b的webservice，返回值不对？
调用helloWorld的返回值是正确的，调用add的时候，传入（1，2）时，返回值却为0，不知什么原因，这个问题困惑了很久，请高手们指教~
以下是源码
//c#写的webservice的源码
[WebService(Namespace = "http://tempuri.org/ ")]
[WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]
public class servTest : System.Web.Services.WebService {
public servTest () {
//Uncomment the following line if using designed components
//InitializeComponent();
}
[WebMethod]
public string HelloWorld() {
return "Hello World ";
}
[WebMethod]
public int add(int a, int b)
{
return a + b;
}
}
//*****************************************
//**************************************
//wdsl导入的代码
// ************************************************************************ //
// The types declared in this file were generated from data read from the
// WSDL File described below:
// WSDL : http://10.20.10.224/servTest.asmx?wsdl
// Encoding : utf-8
// Version : 1.0
// (2007-7-27 下午 04:48:35 - 1.33.2.5)
// ************************************************************************ //
unit servTest;
interface
uses InvokeRegistry, SOAPHTTPClient, Types, XSBuiltIns;
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 "
// !:int - "http://www.w3.org/2001/XMLSchema "
// ************************************************************************ //
// Namespace : http://tempuri.org/
// soapAction: http://tempuri.org/%operationName%
// transport : http://schemas.xmlsoap.org/soap/http
// binding : servTestSoap
// service : servTest
// port : servTestSoap
// URL : http://10.20.10.224/servTest.asmx
// ************************************************************************ //
servTestSoap = interface(IInvokable)
[ '{957BE824-F977-FA3E-7C45-3850D8EF663E} ']
function HelloWorld: WideString; stdcall;
function add(const a: Integer; const b: Integer): Integer; stdcall;
end;
function GetservTestSoap(UseWSDL: Boolean=System.False; Addr: string= ' '; HTTPRIO: THTTPRIO = nil): servTestSoap;
implementation
function GetservTestSoap(UseWSDL: Boolean; Addr: string; HTTPRIO: THTTPRIO): servTestSoap;
const
defWSDL = 'http://10.20.10.224/servTest.asmx?wsdl ';
defURL = 'http://10.20.10.224/servTest.asmx ';
defSvc = 'servTest ';
defPrt = 'servTestSoap ';
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;
RIO.HTTPWebNode.UseUTF8InHeader := True;
try
Result := (RIO as servTestSoap);
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(servTestSoap), 'http://tempuri.org/ ', 'utf-8 ');
InvRegistry.RegisterDefaultSOAPAction(TypeInfo(servTestSoap), 'http://tempuri.org/%operationName% ');
end.
//*******************************************************************//
//delphi客户端调用的代码写在一个按钮的单击事件里
//*******************************************************************//
procedure TForm1.Button1Click(Sender: TObject);
var
ser :servTestSoap;
rStr :wideString;
rInt :integer;
begin
ser := HTTPRIO1 as servTestSoap;
rStr :=ser.HelloWorld;
rInt := ser.add(1, 2);
self.Label1.Caption := IntToStr(rInt);
ShowMessage(rStr);
end;
[解决办法]
你的HTTPRIO1指定WSDLLocation了没有？
using System;
using System.Collections;
using System.ComponentModel;
using System.Data;
using System.Diagnostics;
using System.Web;
using System.Web.Services;
namespace WebService
{
/// <summary>
/// Service1 的摘要说明。
/// </summary>
public class Service1 : System.Web.Services.WebService
{
public Service1()
{
//CODEGEN: 该调用是 ASP.NET Web 服务设计器所必需的
InitializeComponent();
}
#region 组件设计器生成的代码
//Web 服务设计器所必需的
private IContainer components = null;
/// <summary>
/// 设计器支持所需的方法 - 不要使用代码编辑器修改
/// 此方法的内容。
/// </summary>
private void InitializeComponent()
{
}
/// <summary>
/// 清理所有正在使用的资源。
/// </summary>
protected override void Dispose( bool disposing )
{
if(disposing && components != null)
{
components.Dispose();
}
base.Dispose(disposing);
}
#endregion
// WEB 服务示例
// HelloWorld() 示例服务返回字符串 Hello World
// 若要生成，请取消注释下列行，然后保存并生成项目
// 若要测试此 Web 服务，请按 F5 键
[WebMethod]
public string HelloWorld()
{
return "Hello World ";
}
[WebMethod]
public string add(int a, int b)
{
int i;
i = a+b;
return i.ToString();
}
[WebMethod]
public int add1(int a, int b)
{
int i;
i = a+b;
return i;
}
}
}
导入wsdl................
--
var
ss:Service1Soap;
RIO : THTTPRIO;
begin
RIO:= THTTPRIO.Create( Owner );
ss:=RIO as Service1Soap;
RIO.WSDLLocation:= 'http://localhost/WebService/Service1.asmx?wsdl ';
showmessage( ss.add(1,2) );
showmessage( IntToStr( ss.add1(1,2) ) );
end;
正常的一塌糊涂！~~~~~~~~~
[解决办法]
建议用D2007的 WSDL IMPORTER装入 VS写的WEB SERVICE
D2006以下WSDL貌似都有乱码 和传入数据出问题的BUG
我以前有个程序就是折腾了半天
