1. 什么是gSOAP
   
   gSOAP是一个夸平台的，用于开发Web Service服务端和客户端的工具，在Windows、Linux、MAC OS和UNIX下使用C和C++语言编码，集合了SSL功能。gSOAP是一个开源的项目，用它可以方便的使用c/c++地进行SOAP客户端和服务器端编程，而不必了解xml和SOAP协议的细节。

2. 如何获取gSOAP
   
   官网地址：
   
   http://genivia.com/Products/gsoap/index.html
   
   开源主页地址：
   
   http://gsoap2.sourceforge.net/
   
   目前版本为2.8.0
   
   http://sourceforge.net/projects/gsoap2/files/gSOAP/gsoap_2.8.0.zip/download

3.生成WSDL

访问http://localhost/HelloWorld.asmx，在该页面中点击【服务说明】，即生成了http://localhost/HelloWorld.asmx?WSDL

4.根据WSDL文件，生成函数描述

在gSOAP中，提供了两个工具，wsdl2h和soapcpp2,用这两个工具来帮我们生成代理函数。

在cmd下运行这两个工具：

// 查看帮助

wsdl2h -h

Usage: wsdl2h [-a] [-c] [-d] [-e] [-f] [-g] [-h] [-I path] [-i] [-j] [-k] [-l] [

-m] [-n name] [-N name] [-p|-P] [-q name] [-r proxyhost[:port[:uid:pwd]]] [-s] [

-t typemapfile] [-u] [-v] [-w] [-W] [-x] [-y] [-z#] [-_] [-o outfile.h] infile.w

sdl infile.xsd http://www/... ...

-a generate indexed struct names for local elements with anonymous types

-c generate C source code

-d use DOM to populate xs:any, xs:anyType, and xs:anyAttribute

-e don't qualify enum names

-f generate flat C++ class hierarchy

-g generate global top-level element declarations

-h display help info

-i don't import (advanced option)

-Ipath use path to find files

-j don't generate SOAP_ENV__Header and SOAP_ENV__Detail definitions

-k don't generate SOAP_ENV__Header mustUnderstand qualifiers

-l display license information

-m use xsd.h module to import primitive types

-nname use name as the base namespace prefix instead of 'ns'

-Nname use name as the base namespace prefix for service namespaces

-ofile output to file

-p create polymorphic types with C++ inheritance from base xsd__anyType

-P don't create polymorphic types with C++ inheritance from xsd__anyType

-qname use name for the C++ namespace of all declarations

-rhost[:port[:uid:pwd]]

connect via proxy host, port, and proxy credentials

-s don't generate STL code (no std::string and no std::vector)

-tfile use type map file instead of the default file typemap.dat

-u don't generate unions

-v verbose output

-w always wrap response parameters in a response struct (<=1.1.4 behavior)

-W suppress warnings

-x don't generate XML any/anyAttribute extensibility elements

-y generate typedef synonyms for structs and enums

-z1 compatibility with 2.7.6e: generate pointer-based arrays

-z2 compatibility with 2.7.15: qualify element/attribute referenced members

- don't generate _USCORE (replace with UNICODE _x005f)

infile.wsdl infile.xsd http://www/... list of input sources (if none: use stdin)

soapcpp2 -h

Usage: soapcpp2 [-1|-2] [-C|-S] [-T] [-L] [-a] [-b] [-c] [-d path] [-e] [-h] [-i

] [-I path;path;...] [-l] [-m] [-n] [-p name] [-s] [-t] [-v] [-w] [-x] [infile]

-1 generate SOAP 1.1 bindings

-2 generate SOAP 1.2 bindings

-C generate client-side code only

-S generate server-side code only

-T generate server auto-test code

-L don't generate soapClientLib/soapServerLib

-a use SOAPAction HTTP/WSA header to invoke server-side operations

-b serialize byte arrays char[N] as string

-c generate C source code

-dpath use path to save files

-e generate SOAP RPC encoding style bindings

-h display help info

-i generate service proxies and objects inherited from soap struct

-Ipath use path(s) for #import

-l generate linkable modules (experimental)

-m generate Matlab(tm) code for MEX compiler

-n use service name to rename service functions and namespace table

-pname save files with new prefix name instead of 'soap'

-qname use name as the C++ namespace of all declarations

-s generate deserialization code with strict XML validation checks

-t generate code for fully xsi:type typed SOAP/XML messaging

-v display version info

-w don't generate WSDL and schema files

-x don't generate sample XML message files

infile header file to parse (or stdin)

使用wsdl2h生成头文件

wsdl2h -c -o TestWebservice.h http://localhost/HelloWorld.asmx?WSDL

-c 表示用纯c语言来实现，如果不加-c，则用c++语言来实现

-o 表示指定输出文件名称

使用soapcpp2来生成代理函数

soapcpp2 -c TestWebservice.h

执行后，会产生若干个h文件和c文件，里面包含了对远程函数的封装。

本例中生成了以下文件：

soapH.h soapServer.c soapServerLib.c soapClient.c soapClientLib.c soapStub.h soapC.c HelloWorldSoap.nsmap

1. 建立一个控制台程序，将soapH.h soapClient.c soapClientLib.c soapStub.h soapC.c HelloWorldSoap.nsmap添加到工程中

主程序代码如下：

1#include"stdio.h"

2#include"soapH.h"//or whatever it is called, you must already have it

3#include"HelloWorld.nsmap"//this is what you have to add to fix the problem

4

5voidmain()

6{

7structsoap stSoap;

8struct_ns1__HelloWorld stHelloWorld;

9struct_ns1__HelloWorldResponse stHelloWorldRes;

10

11soap_init(&stSoap);

12

13if(soap_callns2HelloWorld(&stSoap,NULL,NULL,&stHelloWorld,&stHelloWorldRes)==SOAPOK)

14{

15printf("%s!\n",stHelloWorldRes.HelloWorldResult);

16}

17else

18{

19printf("Call Failed!\n");

20}

21

22system("pause");

23

24soap_destroy(&stSoap);

25soap_end(&stSoap);

26soap_done(&stSoap);

27}

编译...

>fatal error C1083: Cannot open include file: 'stdsoap2.h': No such file or directory

缺少头文件，OK，需要将stdsoap2.h/stdsoap2.c 拷到工程目录下，并添加到工程中。

再编译...

>soapClientLib.obj : error LNK2005: _soap_call___ns2__HelloWorld already defined in soapClient.obj

查看生成的soapClientLib.c文件，发现如下代码：

ifndef WITH_NOGLOBAL

#define WITH_NOGLOBAL

#endif

#define SOAP_FMAC3 static

#include "soapC.c"

#include "soapClient.c"

/ End of soapClientLib.c /

之前已经添加soapC.c，soapClient.c，可以去掉soapClientLib.c了。

再编译...

Build: 1 succeeded, 0 failed, 0 up-to-date, 0 skipped

1. 运行
   
   又看到了我们熟悉的窗口：HelloWorld!
   原文链接: https://www.cnblogs.com/zhouhq/archive/2011/03/12/1982291.html

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