gSOAP:C++编写服务器端

1.编写头文件cal.h：

//gsoap ns service name: calc

//gsoap ns service style: rpc

//gsoap ns service encoding: encoded

//gsoap ns service namespace: http://127.0.0.1:8089/calc.wsdl

//gsoap ns service location: http://127.0.0.1:8089/cal

//gsoap ns schema  namespace:    urn:calc

int ns__add(double a, double b, double *result);

int ns__sub(double a, double b, double *result);

int ns__mul(double a, double b, double *result);

int ns__div(double a, double b, double *result);

int ns__pow(double a, double b, double *result);

2.生成文件：

soapcpp2.exe -i cal.h

3.将以下文件拷入项目：

4.编写gSOAPService.cpp：

\#define _CRT_SECURE_NO_WARNINGS   **//一定要添加上**

\#include "calc.nsmap"

\#include"soapcalcService.h"

\#include "iostream"  //控件问提只能写“”

using namespace std;

//很重要

int   http_get(struct   soap   *soap)

{

    FILE*fd = NULL;

    fd = fopen("C:\\Users\\Hunter\\Documents\\Visual Studio 2015\\Projects\\Service\\Debug\\calc.wsdl", "rb"); //open WSDL file to copy

    if (!fd)

    {

        return 404; //return HTTP not found error

    }

    soap->http_content = "text/xml";  //HTTP header with text /xml content

    soap_response(soap, SOAP_FILE);

    for (;;)

    {

        size_t r = fread(soap->tmpbuf, 1, sizeof(soap->tmpbuf), fd);

        if (!r)

        {

            break;

        }

        if (soap_send_raw(soap, soap->tmpbuf, r))

        {

            break; //cannot send, but little we can do about that

        }

    }

    fclose(fd);

    soap_end_send(soap);

    return SOAP_OK;

}

int main(int argc, char *argv[])

{

    calcService cal;

    cal.fget = http_get;

    while (1)

    {

        if (cal.run(8089))

        {

            cal.soap_stream_fault(std::cerr);

        }

    }

    return 0;

}

//自动生成了calcService类，自己重写add等函数

/*加法的具体实现*/

int calcService::add(double num1, double num2, double* result)

{

    if (NULL == result)

    {

        printf("Error:The third argument should not be NULL!\n");

        return SOAP_ERR;

    }

    else

    {

        (*result) = num1 + num2;

        return SOAP_OK;

    }

    return SOAP_OK;

}

/*减法的具体实现*/

int calcService::sub(double num1, double num2, double* result)

{

    if (NULL == result)

    {

        printf("Error:The third argument should not be NULL!\n");

        return SOAP_ERR;

    }

    else

    {

        (*result) = num1 - num2;

        return SOAP_OK;

    }

    return SOAP_OK;

}

/*乘法的具体实现*/

int calcService::mul(double num1, double num2, double* result)

{

    if (NULL == result)

    {

        printf("Error:The third argument should not be NULL!\n");

        return SOAP_ERR;

    }

    else

    {

        (*result) = num1 * num2;

        return SOAP_OK;

    }

    return SOAP_OK;

}

/*除法的具体实现*/

int calcService::div(double num1, double num2, double* result)

{

    if (NULL == result || 0 == num2)

    {

        return soap_senderfault("Square root of negative value", "I can only compute the square root of a non-negative value");

        return SOAP_ERR;

    }

    else

    {

        (*result) = num1 / num2;

        return SOAP_OK;

    }

    return SOAP_OK;

}

int calcService::pow(double num1, double num2, double* result)

{

    if (NULL == result || 0 == num2)

    {

        printf("Error:The second argument is 0 or The third argument is NULL!\n");

        return SOAP_ERR;

    }

    else

    {

        (*result) = num1 / num2;

        return SOAP_OK;

    }

    return SOAP_OK;

}

测试一：

http://127.0.0.1:8089/calc.wsdl

测试二：

运行服务器程序，并执行：

wsdl2h.exe -s -o cal.h http://127.0.0.1:8089/calc.wsdl

soapcpp2.exe -i cal.h

stdsoap2在gSOAP目录中搜索。

test.cpp:

\#include"soapcalcProxy.h"

\#include"calc.nsmap"

\#include"iostream"

using namespace std;

int main()

{

    calcProxy p;

    double result = 0;

    if (SOAP_OK == p.add(1, 2, result))

    {

        cout << result << endl;

    }

    else

    {

        p.soap_stream_fault(std::cerr);

    }

    system("pause");

    return 0;

}