gsoap入门实例

1. 环境
   VS2008，gsoap_2.8，win7
2. 实例场景：在客户端输入一个字符串，然后传递给服务端计算字符串长度并返回给客户端（附加一些加减乘除法的实现）；
3. 将..\gsoap-2.8\gsoap\bin\win32中的两个exe文件所在路径加入环境变量中，后面有用；
4. 新建一个文件夹，设计一个calculator.h文件，如下（前面几行的注释我也不知道有啥用）

    //gsoap ns service name: add
    //gsoap ns service namespace: http://localhost/add.wsdl
    //gsoap ns service location: http://localhost
    //gsoap ns service executable: add.cgi
    //gsoap ns service encoding: encoded
    //gsoap ns schema namespace: urn:add
    int ns__add(int num1, int num2, int* result );
    int ns__sub(int num1, int num2, int* result );
    int ns__mult( int num1, int num2, int *result);
    int ns__divid( int num1, int num2, int *result);
    int ns__Hello(char* str,int *len);

5. 在该文件夹中打开cmd（方法ctrl+右键 --》在此处打开命令窗口），输入命令：soapcpp2.exe calculator.h
   有关gsoap的命令用法自行百度；
6. 你会发现生成很多很多文件
7. 利用VS2008创建一个calServer的工程，将calculator.h  add.nsmap soapC.cpp soapServer.cpp soapH.h soapStub.h放入该工程，并且将gsoap-2.8\gsoap下的stdsoap2.h stdsoap2.cpp也添加到该工程；添加完后，在项目属性中的链接器--输入--附加依赖项 中输入wsock32.lib；
8. 在calServer中添加一个main.cpp，代码如下:

    #include "soapH.h"
    #include "add.nsmap"
    #include "stdio.h"
    #include <iostream>
    using namespace std;
   
    int main( int argc, char *argv[])
    {
        struct soap *CalculateSoap = soap_new();                                //创建一个soap
        int iSocket_master = soap_bind(CalculateSoap, NULL, , );         //绑定到相应的IP地址和端口（）NULL指本机，
        //10000为端口号，最后一个参数不重要。
        if (iSocket_master< )                                                  //绑定出错
        {
            soap_print_fault(CalculateSoap, stderr);
            exit(-);
        }
        printf("SoapBind success,the master socket number is:%d\n",iSocket_master); //绑定成功返回监听套接字
   
        while()
        {
            int iSocket_slaver = soap_accept(CalculateSoap);
            if (iSocket_slaver < )
            {
                soap_print_fault(CalculateSoap, stderr);
                exit(-);
            }
            printf("Get a new connection,the slaver socket number is:%d\n",iSocket_slaver); //绑定成功返回监听套接字
            soap_serve(CalculateSoap);
            soap_end(CalculateSoap);
        }
        soap_done(CalculateSoap);
        free(CalculateSoap);
   
        return ;
    }
   
    /*加法的具体实现*/
    int ns__add(struct soap *soap, int num1, int num2, int* 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 ns__sub(struct soap *soap,int num1, int num2, int* 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 ns__mult(struct soap *soap, int num1, int num2, int *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 ns__divid(struct soap *soap, int num1, int num2, int *result)
    {
        if (NULL == result ||  == 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;
    }
   
    int ns__Hello(struct soap *soap, char *str, int *len)
    {
        /*if (NULL == result)
        {
            printf("Error:The third argument should not be NULL!\n");
            return SOAP_ERR;
        }
        else
        {
            cout << result <<endl;
            return SOAP_OK;
        }*/
        //if (NULL == result)
        cout << str <<endl;
        (*len) = strlen(str);
        return SOAP_OK;
   
    }

9. Server端完成，可以运行了。
10. 客户端：利用VS2008创建一个calClient的工程，将calculator.h  add.nsmap soapC.cpp soapClient.cpp soapH.h soapStub.h放入该工程，并且将gsoap-2.8\gsoap下的stdsoap2.h stdsoap2.cpp也添加到该工程；添加完后，在项目属性中的链接器--输入--附加依赖项 中输入wsock32.lib；
11. 在calClient中添加一个main.cpp，代码如下：

     #include "soapH.h"
     #include "add.nsmap"
     #include "stdio.h"
     #include <iostream>
     using namespace std;
    
     int main( int argc, char *argv[])
     {
         printf("The Client is runing...\n");
         int num1 = ;
         int num2 = ;
         int result = ;
    
         struct soap *CalculateSoap = soap_new();
         //soap_init(CalculateSoap);
            注意改你的ip,端口10000不改
         char * server_addr = "http://xx.x.x.x:10000";
    
         int iRet = soap_call_ns__add(CalculateSoap,server_addr,"",num1,num2,&result);
         if ( iRet == SOAP_ERR)
         {
             printf("Error while calling the soap_call_ns__add");
         }
         else
         {
             printf("Calling the soap_call_ns__add success。\n");
             printf("%d + %d = %d\n",num1,num2,result);
         }
    
         iRet = soap_call_ns__sub(CalculateSoap,server_addr,"",num1,num2,&result);
         if ( iRet == SOAP_ERR)
         {
             printf("Error while calling the soap_call_ns__sub");
         }
         else
         {
             printf("Calling the soap_call_ns__sub success。\n");
             printf("%d - %d = %d\n",num1,num2,result);
         }
    
         iRet = soap_call_ns__mult(CalculateSoap,server_addr,"",num1,num2,&result);
         if ( iRet == SOAP_ERR)
         {
             printf("Error while calling the soap_call_ns__mult");
         }
         else
         {
             printf("Calling the soap_call_ns__mult success。\n");
             printf("%d * %d = %d\n",num1,num2,result);
         }
    
         iRet = soap_call_ns__divid(CalculateSoap,server_addr,"",num1,num2,&result);
         if ( iRet == SOAP_ERR)
         {
             printf("Error while calling the soap_call_ns__divid");
         }
         else
         {
             printf("Calling the soap_call_ns__divid success。\n");
             printf("%d / %d = %d\n",num1,num2,result);
         }
         char *str = new char[];
         cin.getline(str,);
         cout << str <<endl;
         int len;
         iRet = soap_call_ns__Hello(CalculateSoap,server_addr,"",str,&len);
         if ( iRet == SOAP_ERR)
         {
             printf("Error while calling the soap_call_ns__add");
         }
         else
         {
             cout << str << " length is " << len <<" success!\n";
         }
    
         soap_end(CalculateSoap);
         soap_done(CalculateSoap);
         free(CalculateSoap);
    
         return ;
     }

12. Client端完成，可以先运行Server，在运行Client看看效果。
    注意：客户端和服务端可以再两台电脑上允许并访问。