HttpCalculatorClientExample
In diesem Beispiel wird gezeigt, wie Sie den Dienstproxy verwenden, um mit einem HTTP-basierten Rechnerdienst zu kommunizieren.
HttpCalculatorClient.cpp
//------------------------------------------------------------
// Copyright (C) Microsoft. All rights reserved.
//------------------------------------------------------------
#ifndef UNICODE
#define UNICODE
#endif
#include "WebServices.h"
#include "process.h"
#include "stdio.h"
#include "string.h"
#include "CalculatorService.wsdl.h"
// Print out rich error info
void PrintError(HRESULT errorCode, WS_ERROR* error)
{
wprintf(L"Failure: errorCode=0x%lx\n", errorCode);
if (errorCode == E_INVALIDARG || errorCode == WS_E_INVALID_OPERATION)
{
// Correct use of the APIs should never generate these errors
wprintf(L"The error was due to an invalid use of an API. This is likely due to a bug in the program.\n");
DebugBreak();
}
HRESULT hr = NOERROR;
if (error != NULL)
{
ULONG errorCount;
hr = WsGetErrorProperty(error, WS_ERROR_PROPERTY_STRING_COUNT, &errorCount, sizeof(errorCount));
if (FAILED(hr))
{
goto Exit;
}
for (ULONG i = 0; i < errorCount; i++)
{
WS_STRING string;
hr = WsGetErrorString(error, i, &string);
if (FAILED(hr))
{
goto Exit;
}
wprintf(L"%.*s\n", string.length, string.chars);
}
}
Exit:
if (FAILED(hr))
{
wprintf(L"Could not get error string (errorCode=0x%lx)\n", hr);
}
}
// Main entry point
int __cdecl wmain(int argc, __in_ecount(argc) wchar_t **argv)
{
UNREFERENCED_PARAMETER(argc);
UNREFERENCED_PARAMETER(argv);
HRESULT hr = NOERROR;
WS_ERROR* error = NULL;
WS_HEAP* heap = NULL;
WS_SERVICE_PROXY* proxy = NULL;
int result = 0;
WS_ENDPOINT_ADDRESS address = {};
WS_STRING url= WS_STRING_VALUE(L"https://localhost/example");
address.url = url;
// Create an error object for storing rich error information
hr = WsCreateError(
NULL,
0,
&error);
if (FAILED(hr))
{
goto Exit;
}
// Create a heap to store deserialized data
hr = WsCreateHeap(
/*maxSize*/ 2048,
/*trimSize*/ 512,
NULL,
0,
&heap,
error);
if (FAILED(hr))
{
goto Exit;
}
// Create the proxy
hr = WsCreateServiceProxy(
WS_CHANNEL_TYPE_REQUEST,
WS_HTTP_CHANNEL_BINDING,
NULL,
NULL,
0,
NULL,
0,
&proxy,
error);
if (FAILED(hr))
{
goto Exit;
}
hr = WsOpenServiceProxy(
proxy,
&address,
NULL,
error);
if (FAILED(hr))
{
goto Exit;
}
hr = DefaultBinding_ICalculator_Add(
proxy,
1,
2,
&result,
heap,
NULL,
0,
NULL,
error);
if (FAILED(hr))
{
goto Exit;
}
wprintf(L"%d + %d = %d\n", 1, 2, result);
Exit:
if (FAILED(hr))
{
// Print out the error
PrintError(hr, error);
}
fflush(
stdout);
if (proxy != NULL)
{
WsCloseServiceProxy(
proxy,
NULL,
NULL);
WsFreeServiceProxy(
proxy);
}
if (heap != NULL)
{
WsFreeHeap(heap);
}
if (error != NULL)
{
WsFreeError(error);
}
fflush(stdout);
return SUCCEEDED(hr) ? 0 : -1;
}
CalculatorService.wsdl
<wsdl:definitions
xmlns:soap="https://schemas.xmlsoap.org/wsdl/soap/"
xmlns:tns="https://Example.org"
xmlns:xsd="https://www.w3.org/2001/XMLSchema"
xmlns:wsaw="https://www.w3.org/2006/05/addressing/wsdl"
xmlns:soap12="https://schemas.xmlsoap.org/wsdl/soap12/"
targetNamespace="https://Example.org"
xmlns:wsdl="https://schemas.xmlsoap.org/wsdl/">
<wsdl:types>
<xsd:schema targetNamespace="https://Example.org" elementFormDefault="qualified" >
<xsd:element name="Add">
<xsd:complexType>
<xsd:sequence>
<xsd:element minOccurs="0" name="a" type="xsd:int" />
<xsd:element minOccurs="0" name="b" type="xsd:int" />
</xsd:sequence>
</xsd:complexType>
</xsd:element>
<xsd:element name="AddResponse">
<xsd:complexType>
<xsd:sequence>
<xsd:element minOccurs="0" name="result" type="xsd:int" />
</xsd:sequence>
</xsd:complexType>
</xsd:element>
<xsd:element name="Subtract">
<xsd:complexType>
<xsd:sequence>
<xsd:element minOccurs="0" name="a" type="xsd:int" />
<xsd:element minOccurs="0" name="b" type="xsd:int" />
</xsd:sequence>
</xsd:complexType>
</xsd:element>
<xsd:element name="SubtractResponse">
<xsd:complexType>
<xsd:sequence>
<xsd:element minOccurs="0" name="result" type="xsd:int" />
</xsd:sequence>
</xsd:complexType>
</xsd:element>
</xsd:schema>
</wsdl:types>
<wsdl:message name="ICalculator_Add_InputMessage">
<wsdl:part name="parameters" element="tns:Add" />
</wsdl:message>
<wsdl:message name="ICalculator_Add_OutputMessage">
<wsdl:part name="parameters" element="tns:AddResponse" />
</wsdl:message>
<wsdl:message name="ICalculator_Subtract_InputMessage">
<wsdl:part name="parameters" element="tns:Subtract" />
</wsdl:message>
<wsdl:message name="ICalculator_Subtract_OutputMessage">
<wsdl:part name="parameters" element="tns:SubtractResponse" />
</wsdl:message>
<wsdl:portType name="ICalculator">
<wsdl:operation name="Add">
<wsdl:input wsaw:Action="https://Example.org/ICalculator/Add" message="tns:ICalculator_Add_InputMessage" />
<wsdl:output wsaw:Action="https://Example.org/ICalculator/AddResponse" message="tns:ICalculator_Add_OutputMessage" />
</wsdl:operation>
<wsdl:operation name="Subtract">
<wsdl:input wsaw:Action="https://Example.org/ICalculator/Subtract" message="tns:ICalculator_Subtract_InputMessage" />
<wsdl:output wsaw:Action="https://Example.org/ICalculator/SubtractResponse" message="tns:ICalculator_Subtract_OutputMessage" />
</wsdl:operation>
</wsdl:portType>
<wsdl:binding name="DefaultBinding_ICalculator" type="tns:ICalculator">
<soap:binding transport="https://schemas.xmlsoap.org/soap/http" />
<wsdl:operation name="Add">
<soap:operation soapAction="https://Example.org/ICalculator/Add" style="document" />
<wsdl:input>
<soap:body use="literal" />
</wsdl:input>
<wsdl:output>
<soap:body use="literal" />
</wsdl:output>
</wsdl:operation>
<wsdl:operation name="Subtract">
<soap:operation soapAction="https://Example.org/ICalculator/Subtract" style="document" />
<wsdl:input>
<soap:body use="literal" />
</wsdl:input>
<wsdl:output>
<soap:body use="literal" />
</wsdl:output>
</wsdl:operation>
</wsdl:binding>
<wsdl:service name="CalculatorService">
<wsdl:port name="ICalculator" binding="tns:DefaultBinding_ICalculator">
<soap:address location="https://Example.org/ICalculator" />
</wsdl:port>
</wsdl:service>
</wsdl:definitions>
Makefile
!include <Win32.Mak>
EXTRA_LIBS = WebServices.lib rpcrt4.lib Iphlpapi.lib
all: $(OUTDIR) $(OUTDIR)\WsHttpCalculatorClient.exe
"$(OUTDIR)" :
if not exist "$(OUTDIR)/$(NULL)" mkdir "$(OUTDIR)"
$(OUTDIR)\CalculatorService.wsdl.c: CalculatorService.wsdl
Wsutil.exe /wsdl:CalculatorService.wsdl /string:WS_STRING /out:$(OUTDIR)
$(OUTDIR)\CalculatorService.wsdl.obj: $(OUTDIR)\CalculatorService.wsdl.c
$(cc) $(cdebug) $(cflags) $(cvarsmt) /WX -I$(OUTDIR) /Fo"$(OUTDIR)\\" /Fd"$(OUTDIR)\\" $(OUTDIR)\CalculatorService.wsdl.c
$(OUTDIR)\HttpCalculatorClient.obj: HttpCalculatorClient.cpp $(OUTDIR)\CalculatorService.wsdl.c
$(cc) $(cdebug) $(cflags) $(cvarsmt) /WX -I$(OUTDIR) /Fo"$(OUTDIR)\\" /Fd"$(OUTDIR)\\" HttpCalculatorClient.cpp
$(OUTDIR)\WsHttpCalculatorClient.exe: $(OUTDIR)\HttpCalculatorClient.obj $(OUTDIR)\CalculatorService.wsdl.obj
$(link) $(ldebug) $(conlflags) $(conlibsmt) $(EXTRA_LIBS) -out:$(OUTDIR)\WsHttpCalculatorClient.exe $(OUTDIR)\HttpCalculatorClient.obj $(OUTDIR)\CalculatorService.wsdl.obj /PDB:$(OUTDIR)\WsHttpCalculatorClient.PDB
clean:
$(CLEANUP)