gsoap开发webservice 服务端.md

无WSDL文件

1.编写头文件websever2.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：

C:Usersadmin>e:
E:>cd E:4.0projetwebserver2gsoap_2.9.65gsoap-2.8gsoapinwin32
E:4.0projetwebserver2gsoap_2.9.65gsoap-2.8gsoapinwin32>soapcpp2.exe -i -2 webserver2.h

3.将以下文件拷如项目：

前6个路径：
E:4.0projectwebserver2gsoap_2.8.65gsoap-2.8gsoapbinwin32

cal.nsmap
soapC.cpp
soapcalService.cpp（名称不固定，以service结尾）
soapcalcService.h（名称不固定，以service结尾）
soapH.h
soapStub.h

以下文件在路径：
E:4.0projectwebserver2gsoap_2.8.65gsoap-2.8gsoap

stdsoap2.h
stdsoap2.cpp

分别添加到Header Files、Resource Files、Source Files内

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("E:\4.0project\webserver2\gsoap_2.8.65\gsoap-2.8\gsoap\bin\win32\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!
");
        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!
");
        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!
");
        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!
");
        return SOAP_ERR;
    }
    else
    {
        (*result) = num1 / num2;
        return SOAP_OK;
    }
    return SOAP_OK;
}

测试：浏览器输入： http://127.0.0.1:8089/calc.wsdl
可以查看wsdl文件 soapUI，新建soap工程，选择对应的wsdl，可以测试使用

已有wsdl文件

部分情况下，客户端已开发完成，需要根据已有wsdl生成.h文件，再通过.h文件生成服务端代码。 根据已有wsdl文件，生成.h文件

D:JHC00144512gsoap_2.8.65gsoap-2.8gsoapinwin32>wsdl2h.exe calc.wsdl

修改wsdl地址时，主要修改wsdl文件内最后一部分中的：

<soap:address location="http://127.0.0.1:8089/macWS"/> 内location信息。