Visual Studio 实现TCp同步通信下载文件

#include <boost/asio.hpp> #include <iostream> #include <fstream> #include <vector> #include <string> #include <map> #define LENGTH 1000 using namespace std; using namespace boost::asio; int main() { int spliceNum = 0; map<int, string> mapFile; fstream file("D:\\work\\testdata_case012.sp", ios::in | ios::out | ios::binary); if (!file.is_open()) { cout << "Open file failure!" << endl; } while (!file.eof()) { char buffer_splice[LENGTH] = { 0 }; file.read(buffer_splice, LENGTH); string strbuffer_splice(buffer_splice); mapFile.insert(pair<int, string>(spliceNum, buffer_splice)); spliceNum++; } file.close(); try { io_service io; ip::tcp::endpoint ep(ip::tcp::v4(), 6688); //v4（）返回v4版的tcp对象， ip::tcp::acceptor acceptor(io, ep); while (1) { ip::tcp::socket sock(io); acceptor.accept(sock); std::cout << "client:" << sock.remote_endpoint().address() << std::endl; char str1[LENGTH + 16] = { 0 }; for (int i = 0; i <spliceNum+1; i++) { strcpy_s(str1, mapFile.at(i).c_str()); sock.write_some(buffer(str1)); } } } catch (std::exception& e) { std::cout << e.what() << std::endl; } return 0; }