1、功能说明：
要开发的Web Service功能非常简单，就是一个add函数，将两个参数相加，返回其和。
2、C版本的程序:
（1）头文件：SmsWBS.h，注释部分不可少，url部分的IP必须填写当前Linux电脑的IP
//gsoap ns service name: SmsWBS
//gsoap ns service style: rpc
//gsoap ns service namespace: http://192.168.2.161:8000/SmsWBS.wsdl
//gsoap ns service location: http://192.168.2.161:8000
//gsoap ns service encoding: encoded
//gsoap ns schema namespace: urn:SmsWBS
int ns__add(int num1, int num2, int *sum);
这个头文件需要注意的是，前面的 // 部分是有意义的，可以在上面修改，如果完全去掉，将会导致生成的中间文件不同，由此会引起要修改Makefile文件
（2）Makefile文件：
比较关键，如果头文件中的 // 部分有修改，要检查是否要修改Makefile文件
GSOAP_ROOT=/usr/local/gSOAP
WSNAME0=soap
WSNAME=SmsWBS
CC=g++ -g -DWITH_NONAMESPACES
INCLUDE=-I $(GSOAP_ROOT)/include
SERVER_OBJS=$(WSNAME0)C.o $(WSNAME0)Server.o stdsoap2.o
CLIENT_OBJS=$(GSOAP_ROOT)/env/envC.o $(WSNAME0)ClientLib.o stdsoap2.o
ALL_OBJS=${WSNAME}server.o $(WSNAME0)C.o $(WSNAME0)Server.o ${WSNAME}test.o $(WSNAME0)ClientLib.o
#GSOAP_SRC=/usr/local/gsoap-2.7/gsoap
all:server
${WSNAME}.wsdl:${WSNAME}.h
$(GSOAP_ROOT)/bin/soapcpp2 -c $(GSOAP_ROOT)/import ${WSNAME}.h
stdsoap2.o:$(GSOAP_ROOT)/src/stdsoap2.c
$(CC) -c $? $(INCLUDE)
$(ALL_OBJS):%.o:%.c
$(CC) -c $? $(INCLUDE)
server:Makefile ${WSNAME}.wsdl ${WSNAME}server.o $(SERVER_OBJS)
$(CC) ${WSNAME}server.o $(SERVER_OBJS) -o ${WSNAME}server
client:Makefile ${WSNAME}.wsdl ${WSNAME}test.c $(ALL_OBJS) stdsoap2.o
$(CC) ${WSNAME}test.o $(CLIENT_OBJS) -o ${WSNAME}test
clean:
rm -f *.o *.xml *.a *.wsdl *.nsmap $(WSNAME0)H.h $(WSNAME0)C.c $(WSNAME0)Server.c $(WSNAME0)Client.c $(WSNAME0)Stub.* $(WSNAME)$(WSNAME)Proxy.* $(WSNAME)$(WSNAME)Object.* $(WSNAME0)ServerLib.c $(WSNAME0)ClientLib.c $(WSNAME)server ns.xsd $(WSNAME)test
（3）服务端程序SmsWBSserver.c：
#include "soapH.h"
#include "SmsWBS.nsmap"
int main(int argc, char **argv)
{
int m, s; /* master and slave sockets */
struct soap SmsWBS_soap;
soap_init(&SmsWBS_soap);
soap_set_namespaces(&SmsWBS_soap, namespaces);
if (argc < 2)
{
printf("usage: %s <server_port> \n", argv[0]);
exit(1);
}
else
{
m = soap_bind(&SmsWBS_soap, NULL, atoi(argv[1]), 100);
if (m < 0)
{
soap_print_fault(&SmsWBS_soap, stderr);
exit(-1);
}
fprintf(stderr, "Socket connection successful: master socket = %d\n", m);
for (;;)
{
s = soap_accept(&SmsWBS_soap);
if (s < 0)
{
soap_print_fault(&SmsWBS_soap, stderr);
exit(-1);
}
fprintf(stderr, "Socket connection successful: slave socket = %d\n", s);
soap_serve(&SmsWBS_soap);
soap_end(&SmsWBS_soap);
}
}
return 0;
}
int ns__add(struct soap *add_soap, int num1, int num2, int *sum)
{
*sum = num1 + num2;
return 0;
}
（4）客户端程序SmsWBStest.c：
#include <stdio.h>
#include <stdlib.h>
#include "soapStub.h"
#include "SmsWBS.nsmap"
int add(const char *server, int num1, int num2, int *sum);
int add(const char *server, int num1, int num2, int *sum)
{
struct soap SmsWBS_soap;
int result = 0;
soap_init(&SmsWBS_soap);
soap_set_namespaces(&SmsWBS_soap, namespaces);
soap_call_ns__add(&SmsWBS_soap, server, "", num1, num2, sum);
if(SmsWBS_soap.error)
{
printf("soap error:%d, %s, %s ", SmsWBS_soap.error, *soap_faultcode(&SmsWBS_soap), *soap_faultstring(&SmsWBS_soap));
result = SmsWBS_soap.error;
}
soap_end(&SmsWBS_soap);
soap_done(&SmsWBS_soap);
return result;
}
int main(int argc, char **argv)
{
int result = -1;
char* server="http://localhost:8000";
int num1 = 0;
int num2 = 0;
int sum = 0;
if( argc < 3 )
{
printf("usage: %s num1 num2 \n", argv[0]);
exit(0);
}
num1 = atoi(argv[1]);
num2 = atoi(argv[2]);
result = add(server, num1, num2, &sum);
if (result != 0)
{
printf("soap err, errcode = %d \n", result);
}
else
{
printf("%d + %d = %d \n", num1, num2, sum);
}
return 0;
}
（5）编译和运行：
前面都已经准备好了，现在只需要：
make ---得到服务端程序SmsWBSserver
make client ---得到客户端程序SmsWBStest
SmsWBSserver 9000 ----运行服务端程序
出来类似下面的显示就表示运行正常
Socket connection successful: master socket = 3
再运行客户端程序：
SmsWBStest 67 78
显示：
67 + 78 = 145
调用Web Service成功