基于g_soap制作的数据下载器，传输速度只有600kb 需改进

服务端：

//结构体
class ns_DownInfo
{
	char m_pBuffer[1024];
	int m_nReadSize;
	bool m_bEof;
};

struct ns_getDownInfoResponse {ns_DownInfo return_;};

int ns__DownFile(char *pcFileName, int nPosition, struct ns_getDownInfoResponse &r);

int ns__GetHelloWorld(char * &GetHelloWorldReturn);  //注册

//server.h
/********************************
 author： DuanYueming
 Creat： 2014/7/19
 Creat： 2014：17：52 

 purpose：发送文件模块
*******************************/

  #include "FileInfo.h"
#include "ns.nsmap"
//#include <fstream>
//
//
//
//class Server
//{
//public:
//	Server::Server(int _port=5678);
//	~Server();
//	int ns__SendFile(struct soap*, char *FileName, int Position, struct ns_GetFileInfo  &s);
//	/*char *GetFileName(char *_FilePath);*/
//	void InitSoap();
//
//
//private:
//	int m_TotalSize;
//	char *m_FileName;
//	bool m_state;
//	int  m_port;
//	int m_UpdataSize;
//	struct ns__SendFile *m_SendFile;
//	struct soap m_soap;
//};

//server.cpp

// #include "Server.h"
// using std::ifstream;
// Server::Server(int _port)
// {
// 	m_TotalSize=0;
// 	m_FileName=NULL;
// 	m_state=false;
// 	m_port=_port;
// 	m_UpdataSize=0;
// }
//
// //char* Server::GetFileName(char *_FilePath)
// //{
// //   m_FileName=_FilePath;
// // /*  return _FilePath;*/
// //}
//
//
// void Server::InitSoap()
// {
// 	 soap_init(&m_soap);
// 	 SOCKET _state = soap_bind(&m_soap,NULL,m_port,100);
// 	 if (_state == INVALID_SOCKET)
// 	 {
// 		 printf("The Socket Bind Error!");
// 			 exit(1);
// 	 }
// 	 printf("Socket Successful");
// 	 for (;;)
// 	 {
// 		 int _accept_state = (int)soap_accept(&m_soap);
// 		 if (_accept_state < 0)
// 		 {
// 			 soap_print_fault(&m_soap, stderr);
// 			 exit(-1);
// 		 }
// 		 printf("Connect Successful");
// 		 soap_serve(&m_soap);
// 		 soap_end(&m_soap);
// 	 }
//
// }
// int Server::ns__SendFile(struct soap*, char *FileName, int Position, struct ns_GetFileInfo &s)
// {
//
// 	ifstream _file;
//
// 	_file.open(FileName,std::ios::in | std::ios::binary);
// 	if (_file.is_open())
// 	{
// 		_file.seekg(Position);
// 		m_TotalSize = _file.tellg();
// 		while (!_file.eof())
// 		{
//  			_file.read(s.m_FileInfo.m_FileBuff,1024);
//  			m_UpdataSize += _file.gcount();
//  			printf("Sending %02d%%",(m_UpdataSize-m_TotalSize)*100);
// 			fflush(stdout);
// 			printf("\r");
//
// 		}
// 		_file.close();
//
// 	}
// 	return 0;
// }
// 

//inline ns_FileInfo * soap_new_req_ns_FileInfo(struct soap *soap, char m_FileBuff[1024], int m_TotalSize, bool m_state)
//{
//	ns_FileInfo *_p = soap_instantiate_ns_FileInfo(soap, -1, NULL, NULL, NULL);
//if (_p)
//{
//	_p->soap_default(soap);
//    _p->ns_FileInfo::m_FileBuff = m_FileBuff;
//    _p->ns_FileInfo::m_TotalSize = m_TotalSize;
//    _p->ns_FileInfo::m_state = m_state;
//}
//   return _p;
//}

//客户端

#include "soapStub.h"
#include "ns.nsmap"
#include <fstream>
using std::ofstream;
using std::ifstream;

int GetHelloWorld(const char* server)
{
	struct soap str_soap;
	int nResult = 0;
	soap_init(&str_soap);
	char* buff;// = new char[1024];
	soap_call_ns__GetHelloWorld(&str_soap, server, "", buff);
	if (str_soap.error)
	{
		soap_print_fault(&str_soap, stderr);
	}
	soap_end(&str_soap);
	soap_done(&str_soap);
	return 0;
}

int DownFile(const char* server)
{
	//从服务器读取pSourceFileName文件另存为pOldFileName文件
	char *pSourceFileName = "D:\\shrike-i386-disc1.iso", *pOldFileName = "E:\\444.txt";
	struct soap str_soap;
	int nResult = 0;
	soap_init(&str_soap);
	struct ns_getDownInfoResponse rResponse;
	soap_call_ns__DownFile(&str_soap, server, "", pSourceFileName, 0, rResponse);
	bool bEof(false);
	if (str_soap.error)
	{
		soap_print_fault(&str_soap, stderr);
		bEof = true;
	}
	ofstream file;
	if(!bEof)
	{
		file.open(pOldFileName, std::ios::out | std::ios::binary | std::ios::trunc);
		if(file.is_open())
			file.write(rResponse.return_.m_pBuffer, rResponse.return_.m_nReadSize);
	}
	bEof = rResponse.return_.m_bEof;
	int nPosition = rResponse.return_.m_nReadSize;
	soap_end(&str_soap);
	soap_done(&str_soap);

	while(!bEof)
	{
		soap_call_ns__DownFile(&str_soap, server, "", pSourceFileName, nPosition, rResponse);
		if (str_soap.error)
		{
			soap_print_fault(&str_soap, stderr);
			bEof = true;
		}
		else
		{
			if(file.is_open())
				file.write(rResponse.return_.m_pBuffer, rResponse.return_.m_nReadSize);
			bEof = rResponse.return_.m_bEof;
			nPosition += rResponse.return_.m_nReadSize;
		}
		soap_end(&str_soap);
		soap_done(&str_soap);
	}
	if(file.is_open())
		file.close();
	return 0;
}

int main(int argc, char * argv[])
{
	char *server = "http://localhost:8080";
	GetHelloWorld(server);
	DownFile(server);
	return 0;
}

　　代码比较残缺，从坏了的硬盘弄出来的。。。当然，还是能做个例子的，具体的就不介绍了，相信有过一定编程经验的都能轻松看懂。