【c++】c++11（使用系统API）遍历指定目录里面的文件

这个是c++17的

//c++17的
#include <iostream>
#include <filesystem>
 
namespace fs = std::filesystem;
 
int main() {
    std::string path = "/path/to/directory"; // 替换为你的目录路径
 
    try {
        for (const auto& entry : fs::directory_iterator(path)) {
            const auto filename = entry.path().filename();
            if (entry.is_directory()) {
                std::cout << "Dir: " << filename << std::endl;
            } else if (entry.is_regular_file()) {
                std::cout << "File: " << filename << std::endl;
            } else {
                std::cout << "Other: " << filename << std::endl;
            }
        }
    } catch (const fs::filesystem_error& e) {
        std::cerr << e.what() << std::endl;
    }
 
    return 0;
}

这个是使用系统API遍历的（windows）。

#include <iostream>
#include <vector>
#include <string>
#include <windows.h>

std::vector<std::string> GetFiles(const std::string& directoryPath)
{
	std::vector<std::string> filePaths;

	std::string searchPattern = directoryPath + "\\*";
	WIN32_FIND_DATAA findData;
	HANDLE hFind = FindFirstFile(searchPattern.c_str(), &findData);

	if (hFind == INVALID_HANDLE_VALUE)
	{
		std::cerr << "find directory is Failed: " << directoryPath << std::endl;
		return filePaths;
	}

	do
	{
		if (findData.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)
		{
			// 过滤 "."和".."目录 
			if (strcmp(findData.cFileName, ".") == 0 || strcmp(findData.cFileName, "..") == 0)
				continue;

			std::string subDirectoryPath = directoryPath + "\\" + findData.cFileName;
			std::vector<std::string> subDirectoryFilePaths = GetFiles(subDirectoryPath);
			filePaths.insert(filePaths.end(), subDirectoryFilePaths.begin(), subDirectoryFilePaths.end());
		}
		else
		{
			std::string filePath = directoryPath + "\\" + findData.cFileName;
			filePaths.push_back(filePath);
		}

	} while (FindNextFileA(hFind, &findData));

	FindClose(hFind);

	return filePaths;
}

int main()
{
	std::string directoryPath = "B:\\share\\202406";

	std::vector<std::string> filePaths = GetFiles(directoryPath);

	for (const auto& filePath : filePaths)
	{
		std::cout << filePath << std::endl;
	}

	system("pause");
	return 0;
}

这个是Linux的

#include <iostream>
#include <fstream>
#include <string>
#include <dirent.h>

using namespace std;

static bool endsWith(const std::string& str, const std::string& suffix) {
    return str.size() >= suffix.size() &&
           str.compare(str.size() - suffix.size(), suffix.size(), suffix) == 0;
}

static void findXmlFiles(const std::string& directory, std::vector<std::string> &xmlFiles) {
    DIR* dir;
    struct dirent* ent;
    if ((dir = opendir(directory.c_str())) != NULL) {
        while ((ent = readdir(dir)) != NULL) {
            std::string path = directory + "/" + ent->d_name;
            if (ent->d_type == DT_DIR) {
                // 如果是目录且不是.或..，则递归调用
                if (strcmp(ent->d_name, ".") != 0 && strcmp(ent->d_name, "..") != 0) {
                    findXmlFiles(path, xmlFiles);
                }
            } else if (endsWith(path, ".xml")) {
                // 如果是.xml文件，打印路径
                std::cout << "Found XML file: " << path << std::endl;
                xmlFiles.push_back(path);
            }
        }
        closedir(dir);
    } else {
        // 打开目录失败
        std::cerr << "Error opening directory: " << directory << std::endl;
    }
}

int main(int argc, char *argv[])
{
    std::string directory("/root/solutionTest"); // 替换为你的目录路径
    //findXmlFiles(directory);