Boost获取当前时间并格式化为字符串

格式化为字符串

时间转字符串有两种方法

#include <boost/date_time/posix_time/posix_time.hpp>
#include <iostream>std::string getCurrentTime() {boost::posix_time::ptime currentTime = boost::posix_time::microsec_clock::local_time();    std::string formattedTime = boost::posix_time::to_iso_extended_string(currentTime);return formattedTime;
}int main() {std::string currentTime = getCurrentTime();std::cout << "Current time: " << currentTime << std::endl;return 0;
}

格式化为指定格式字符串

#include <boost/date_time/posix_time/posix_time.hpp>
#include <iostream>
#include <sstream>std::string formatTime(const boost::posix_time::ptime& time, const std::string& format) {std::ostringstream oss;boost::posix_time::time_facet* facet = new boost::posix_time::time_facet();facet->format(format.c_str());oss.imbue(std::locale(std::cout.getloc(), facet));oss << time;return oss.str();
}int main() {boost::posix_time::ptime currentTime = boost::posix_time::microsec_clock::local_time();std::string formattedTime = formatTime(currentTime, "%Y-%m-%d %H:%M:%S.%f");std::cout << "Formatted time: " << formattedTime << std::endl;return 0;
}

字符串转时间

#include <iostream>
#include <boost/date_time/posix_time/posix_time.hpp>int main() {std::string formattedString = "2021-09-30 10:30:00";boost::posix_time::ptime time = boost::posix_time::time_from_string(formattedString);std::cout << "Converted time: " << time << std::endl;return 0;
}

指定格式字符串转为时间

#include <iostream>
#include <sstream>
#include <locale>
#include <boost/date_time/posix_time/posix_time.hpp>
#include <boost/date_time/posix_time/time_facet.hpp>int main() {std::string formattedString = "2021-09-30 10:30:00";std::istringstream iss(formattedString);iss.imbue(std::locale(iss.getloc(), new boost::posix_time::time_input_facet("%Y-%m-%d %H:%M:%S")));boost::posix_time::ptime time;iss >> boost::posix_time::time_input(time);std::cout << "Converted time: " << time << std::endl;return 0;
}