阅读量:0
在C++中，压缩文件夹通常需要使用第三方库，例如 zlib、minizip 或者 libarchive。以下是一个使用 minizip 库的示例，演示如何压缩文件夹及其内容：
首先，确保已经安装了 minizip 库。在 Ubuntu 系统上，可以使用以下命令安装：
sudo apt-get install libminizip-dev 接下来，编写一个 C++ 程序来压缩文件夹：
#include<iostream> #include<string> #include<vector> #include <dirent.h> #include <sys/stat.h> #include "mz_compat.h" bool is_directory(const std::string &path) { struct stat st; if (stat(path.c_str(), &st) == 0 && S_ISDIR(st.st_mode)) { return true; } return false; } std::vector<std::string> list_files(const std::string &folder) { std::vector<std::string> files; DIR *dir = opendir(folder.c_str()); if (dir != nullptr) { dirent *entry; while ((entry = readdir(dir)) != nullptr) { if (entry->d_name[0] != '.') { std::string path = folder + "/" + entry->d_name; if (is_directory(path)) { auto sub_files = list_files(path); files.insert(files.end(), sub_files.begin(), sub_files.end()); } else { files.push_back(path); } } } closedir(dir); } return files; } int compress_folder(const std::string &input_folder, const std::string &output_file) { zipFile zf = zipOpen64(output_file.c_str(), APPEND_STATUS_CREATE); if (zf == nullptr) { std::cerr << "Failed to create zip file: "<< output_file<< std::endl; return -1; } auto files = list_files(input_folder); for (const auto &file : files) { zip_fileinfo file_info = {}; int err = zipOpenNewFileInZip4_64(zf, file.substr(input_folder.length() + 1).c_str(), &file_info, nullptr, 0, nullptr, 0, nullptr, Z_DEFLATED, Z_DEFAULT_COMPRESSION, 0, -MAX_WBITS, DEF_MEM_LEVEL, Z_DEFAULT_STRATEGY, nullptr, 0, 0, 0); if (err != ZIP_OK) { std::cerr << "Failed to open file in zip: "<< file<< std::endl; zipClose(zf, nullptr); return -1; } FILE *f = fopen(file.c_str(), "rb"); if (f == nullptr) { std::cerr << "Failed to open file: "<< file<< std::endl; zipCloseFileInZip(zf); zipClose(zf, nullptr); return -1; } char buffer[4096]; size_t read_size; while ((read_size = fread(buffer, 1, sizeof(buffer), f)) > 0) { err = zipWriteInFileInZip(zf, buffer, static_cast<unsigned int>(read_size)); if (err < 0) { std::cerr << "Failed to write file to zip: "<< file<< std::endl; fclose(f); zipCloseFileInZip(zf); zipClose(zf, nullptr); return -1; } } fclose(f); zipCloseFileInZip(zf); } zipClose(zf, nullptr); return 0; } int main() { std::string input_folder = "/path/to/input/folder"; std::string output_file = "/path/to/output/file.zip"; int result = compress_folder(input_folder, output_file); if (result == 0) { std::cout << "Folder successfully compressed!"<< std::endl; } else { std::cerr << "Failed to compress folder."<< std::endl; } return result; } 这个程序首先递归地列出文件夹中的所有文件，然后使用 minizip 库将这些文件添加到压缩文件中。请注意，您需要根据实际情况修改 input_folder 和 output_file 变量的值。
