gsoap使用

一. 安裝gsoap

下載地址：http://sourceforge.net/projects/gsoap2/files/

解壓安裝：./configure --prefix=/usr/local/gsoap && make && make install

示例目錄：gsoap-2.8/gsoap/samples 有各種語言使用接口方法 

async        chaining     gmt          Makefile                    mashup       README.txt  udp        xml-rpc-json
atom         chaining++   googleapi    Makefile.am                 mashup++     rest        varparam
autotest     curl         hello        Makefile.cpp_proxy_rules    mtom         roll        wcf
aws          databinding  httpcookies  Makefile.cpp_proxy_rules_j  mtom-stream  router      webserver
calc         dime         link         Makefile.cpp_rules          oneway       rss         wsa
calc++       dom          link++       Makefile.c_rules            oneway++     ssl         wsrm
calc_vs2005  factory      lu           Makefile.defines            polytest     template    wsse
calc_xcode   factorytest  magic        Makefile.in                 primes       testmsgr    wst

二. 編寫demo

定義函數接口，寫chw.h文件

//gsoap ns service name:    chw Simple calculator service
//gsoap ns service style:   rpc
//gsoap ns service encoding:    encoded
//gsoap ns service namespace:   
//gsoap ns service location:    

//gsoap ns schema namespace:    urn:chw

//gsoap ns service method-documentation: add Sums two values
int add(int a, int b, int *result);

//gsoap ns service method-documentation: sub Subtracts two values
int sub(int a, int b, int *result);

使用命令：soapcpp2 -c -x chw.h

-c 產生純C代碼，不然是C++代碼(與頭文件有關)

-I 指定import路徑

-x 不要產生XML示例文件

生成文件有：

[root@Logcen5 test]# ls
chw.h    soapClient.c     soapH.h     soapServer.c     soapStub.h
soapC.c  soapClientLib.c  soap.nsmap  soapServerLib.c

查看soapStub.h文件

/******************************************************************************\
 *                                                                            *
 * Client-Side Call Stub Functions                                            *
 *                                                                            *
\******************************************************************************/


    /** Web service synchronous operation 'soap_call_add' to the specified endpoint and SOAP Action header, returns SOAP_OK or error code */
    SOAP_FMAC5 int SOAP_FMAC6 soap_call_add(struct soap *soap, const char *soap_endpoint, const char *soap_action, int a, int b, int *result);
    /** Web service asynchronous operation 'soap_send_add' to send a request message to the specified endpoint and SOAP Action header, returns SOAP_OK or error code */
    SOAP_FMAC5 int SOAP_FMAC6 soap_send_add(struct soap *soap, const char *soap_endpoint, const char *soap_action, int a, int b);
    /** Web service asynchronous operation 'soap_recv_add' to receive a response message from the connected endpoint, returns SOAP_OK or error code */
    SOAP_FMAC5 int SOAP_FMAC6 soap_recv_add(struct soap *soap, int *result);

    /** Web service synchronous operation 'soap_call_sub' to the specified endpoint and SOAP Action header, returns SOAP_OK or error code */
    SOAP_FMAC5 int SOAP_FMAC6 soap_call_sub(struct soap *soap, const char *soap_endpoint, const char *soap_action, int a, int b, int *result);
    /** Web service asynchronous operation 'soap_send_sub' to send a request message to the specified endpoint and SOAP Action header, returns SOAP_OK or error code */
    SOAP_FMAC5 int SOAP_FMAC6 soap_send_sub(struct soap *soap, const char *soap_endpoint, const char *soap_action, int a, int b);
    /** Web service asynchronous operation 'soap_recv_sub' to receive a response message from the connected endpoint, returns SOAP_OK or error code */
    SOAP_FMAC5 int SOAP_FMAC6 soap_recv_sub(struct soap *soap, int *result);

/******************************************************************************\
 *                                                                            *
 * Server-Side Operations                                                     *
 *                                                                            *
\******************************************************************************/

    /** Web service operation 'add' implementation, should return SOAP_OK or error code */
    SOAP_FMAC5 int SOAP_FMAC6 add(struct soap*, int a, int b, int *result);
    /** Web service operation 'sub' implementation, should return SOAP_OK or error code */
    SOAP_FMAC5 int SOAP_FMAC6 sub(struct soap*, int a, int b, int *result);

另外須要從gsoap拷貝兩個文件過來stdsoap2.c和stdsoap2.h，方便gcc編譯不報錯！

編寫本身的服務端。server.c

#include <stdio.h>
#include "soapH.h"
#include "soap.nsmap"

int main(int argc, char *argv[])
{
    struct soap soap;
    SOAP_SOCKET m, s;
    int ret;
    soap_init(&soap);
    if (argc < 2)
        soap_serve(&soap);
    else
    {
        m = soap_bind(&soap, NULL, atoi(argv[1]), 100);
        if (!soap_valid_socket(m))
        {
            soap_print_fault(&soap, stderr);
            exit(-1);
        }
        fprintf(stderr, "Socket connection successful: master socket = %d\n", m);
        for ( ; ; )
        {
            s = soap_accept(&soap);
            fprintf(stderr, "Socket connection successful: slave socket = %d\n", s);
            if (!soap_valid_socket(s))
            {
                soap_print_fault(&soap, stderr);
                exit(-1);
            }
            soap_serve(&soap);
            soap_end(&soap);
        }
    }
    return 0;
}

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

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

編譯命令：gcc -o ser server.c soapC.c soapServer.c stdsoap2.c 生成可執行程序 ser

編寫本身的客戶端。client.c

#include "soapH.h"
#include "soap.nsmap"

const char server[] = "http://localhost:8888";

int main(int argc, char *argv[])
{
    struct soap soap;
    int a, b, result;

    if (argc < 4)
    {
        fprintf(stderr, "Usage: [add|sub|mul|div|pow] num num\n");
        exit(0);
    }
    a = atoi(argv[2]);
    b = atoi(argv[3]);

    soap_init(&soap);
    switch(*argv[1])
    {
        case 'a':
            //soap_call_ns__add(&soap, server, "", a, b, &result);
            soap_call_add(&soap, server, "", a, b, &result);
            break;
        case 's':
            //soap_call_ns__sub(&soap, server, "", a, b, &result);
            soap_call_sub(&soap, server, "", a, b, &result);
            break;
        default:
            fprintf(stderr, "Unknown command\n");
            exit(0);
    }
    if (soap.error)
    {
            soap_print_fault(&soap, stderr);
            exit(1);
    }
    else
            printf("result = %d\n", result);
    soap_destroy(&soap);
    soap_end(&soap);
    soap_done(&soap);

    return 0;
}

編譯命令：gcc -o cle client.c soapC.c soapClient.c stdsoap2.c生成可執行程序 cle

測試：

在一個窗口執行：./ser 8888

[root@Logcen5 test]# ./ser 8888
Socket connection successful: master socket = 3

另一個窗口執行：./cle add 2 3

[root@Logcen5 test]# ./cle add 2 3
result = 5