gSOAP calc服务端与客户端示例

1. Web服务定义描述头文件

typedef double xsd__double;
int ns__add(xsd__double a, xsd__double b, xsd__double &result);
int ns__sub(xsd__double a, xsd__double b, xsd__double &result);
int ns__sqrt(xsd__double a, xsd__double &result);

2. 生成服务端与客户端代码

soapcpp2 calc.h

3. 服务端工程 / 客户端工程对比

4. 服务端main.cpp

 #include "soapH.h"
 #include <math.h>

 int http_get(struct soap *soap)
 {
     FILE *fd = NULL;
     fd = fopen("ns.wsdl", "rb");
     if (!fd)
     {
         return ;
     }
     soap->http_content = "text/xml";
     soap_response(soap, SOAP_FILE);

     while(true)
     {
         size_t r = fread(soap->tmpbuf, , sizeof(soap->tmpbuf), fd);

         if (!r)    break;
         if (soap_send_raw(soap, soap->tmpbuf, r)) break;
     }
     fclose(fd);
     soap_end_send(soap);

     return SOAP_OK;
 }

 int http_get1(struct soap *soap)
 {
     std::string fileName="ns.wsdl";

     FILE *fd = NULL;
     fd = fopen(fileName.c_str(), "rb");//openWSDLfiletocopy
     if(!fd)
     {
         return ; //return HTTP not found error
     }
     soap->http_content="text/xml"; //HTTP header with text/xml content
     soap_response(soap,SOAP_FILE);
     while (true)
     {
         size_t r=fread(soap->tmpbuf,,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()
 {
     struct soap soap;
     int m, s;
     soap_init(&soap);
     soap.fget = http_get;

     m = soap_bind(&soap, NULL, , );

     if (m < )
     {
         soap_print_fault(&soap, stderr);
         exit(-);
     }

         fprintf(stderr, "Socket connection successful: master socket = %d\n", m);

         for (int i=; ; i++)
         {
             s = soap_accept(&soap); //接受请求
             if (s < )
             {
                 soap_print_fault(&soap, stderr);
                 break;
             }

             fprintf(stderr, "%d: accepted connection from IP=%d.%d.%d.%d socket=%d",
                         i, (soap.ip >> )&0xFF, (soap.ip >> )&0xFF, (soap.ip >> )&0xFF, soap.ip&&0xFF, s);  //打印出接受请求的详细信息

             if (soap_serve(&soap) != SOAP_OK)  //处理请求
                 soap_print_fault(&soap, stderr);
             fprintf(stderr, "request served\n");

             soap_destroy(&soap); //清理soap类实例
             soap_end(&soap);      //清理soap相关的所有资源并关闭连接
     }
     soap_done(&soap);

     return soap_serve(soap_new());
 }

 int ns__add(struct soap *soap, double a, double b, double &result)
 {
     result = a + b;
     return SOAP_OK;
 }

 int ns__sub(struct soap *soap, double a, double b, double &result)
 {
     result = a - b;
     return SOAP_OK;
 }

 int ns__sqrt(struct soap *soap, double a, double &result)
 {

     if (a >= )
     {
         result = sqrt(a);
         return SOAP_OK;
     }
     else
         return soap_receiver_fault(soap, "Square root of negative number", "I can't only take the square root of a non-negative number");
 }

 SOAP_NMAC struct Namespace namespaces[] =
 {
     {"SOAP-ENV", "http://schemas.xmlsoap.org/soap/envelope/", "http://www.w3.org/*/soap-envelope", NULL},
     {"SOAP-ENC", "http://schemas.xmlsoap.org/soap/encoding/", "http://www.w3.org/*/soap-encoding", NULL},
     {"xsi", "http://www.w3.org/2001/XMLSchema-instance", "http://www.w3.org/*/XMLSchema-instance", NULL},
     {"xsd", "http://www.w3.org/2001/XMLSchema", "http://www.w3.org/*/XMLSchema", NULL},
     {"ns", "http://tempuri.org/ns.xsd", NULL, NULL},
     {NULL, NULL, NULL, NULL}
 };

5. 客户端main.cpp

#include "soapH.h"

int main()
{
    struct soap calc_soap;

    soap_init(&calc_soap);

    double result = -;

    /*
    soap_call_ns__add(
            struct soap *soap,
            const char *soap_endpoint,
            const char *soap_action,
            double a,
            double b,
            double &result)

  */
    //调用成功返回标准0
    int flag = soap_call_ns__add(&calc_soap, "http://localhost:9001", "", 1.0, 6.9, result);

    std::cout<<"result="<<result<<", flag="<<flag<<std::endl;

    flag = soap_call_ns__sqrt(&calc_soap, "http://localhost:9001", "",  , result);
    std::cout<<"result="<<result<<", flag="<<flag<<std::endl;

    return ;
};

SOAP_NMAC struct Namespace namespaces[] =
{
    {"SOAP-ENV", "http://schemas.xmlsoap.org/soap/envelope/", "http://www.w3.org/*/soap-envelope", NULL},
    {"SOAP-ENC", "http://schemas.xmlsoap.org/soap/encoding/", "http://www.w3.org/*/soap-encoding", NULL},
    {"xsi", "http://www.w3.org/2001/XMLSchema-instance", "http://www.w3.org/*/XMLSchema-instance", NULL},
    {"xsd", "http://www.w3.org/2001/XMLSchema", "http://www.w3.org/*/XMLSchema", NULL},
    {"ns", "http://tempuri.org/ns.xsd", NULL, NULL},
    {NULL, NULL, NULL, NULL}
};

6 服务端与客户端调试