我是WinInet新手,有以下简单的C++代码:
void DoIt(std::string& host, std::string& username, std::string& password) {
HINTERNET hInternet;
HINTERNET hFtpSession;
hInternet = InternetOpen(NULL, INTERNET_OPEN_TYPE_DIRECT, NULL, NULL, 0);
if (hInternet == NULL) {
std::cout << "Error: " << GetLastError();
} else {
hFtpSession = InternetConnect(hInternet, host.c_str(), INTERNET_DEFAULT_FTP_PORT, username.c_str(), password.c_str(), INTERNET_SERVICE_FTP, 0, 0);
if (hFtpSession == NULL) {
std::cout << "Error: " << GetLastError();
} else {
if (!FtpPutFile(hFtpSession, "C:\\temp\\ftp\\myFile.txt", "/myFile.txt", FTP_TRANSFER_TYPE_BINARY, 0)) {
std::cout << "Error: " << GetLastError();
}
}
}
}但是编译器的输出是:
Info: Configuration "Debug" uses tool-chain "MinGW GCC" that is unsupported on this system, attempting to build anyway.
Info: Internal Builder is used for build
g++ -O0 -g3 -Wall -std=c++11 -o main.o "..\\main.cpp"
C:\Users\u007\AppData\Local\Temp\ccFEaWlK.o: In function `Z4DoItRSsS_S_':
C:\projects\ftp-test\Debug/../main.cpp:10: undefined reference to `_imp__InternetOpenA@20'
C:\projects\ftp-test\Debug/../main.cpp:14: undefined reference to `_imp__InternetConnectA@32'
C:\projects\ftp-test\Debug/../main.cpp:18: undefined reference to `_imp__FtpPutFileA@20'
collect2.exe: error: ld returned 1 exit status(我链接到Eclipse中的wininet.lib库)

(我还尝试将-lwininet选项添加到编译器中,但它什么也不做)
我使用以下软件:
Windows 10 x64Eclipse Neon 3MinGW (rubenvb-4.8-stdthread) 4.8.1 20130324 (prerelease)谢谢你的建议。
发布于 2017-07-28 12:08:20
基于g++编译行,它缺少要链接到的库(wininet)。您需要在eclipse中添加该库,以便您的程序链接到它。
https://stackoverflow.com/questions/45373024
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