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 
#include 

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;
}
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格式化为指定格式字符串

#include 
#include 
#include 

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;
}

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字符串转时间

#include 
#include 

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;
}
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指定格式字符串转为时间

#include 
#include 
#include 
#include 
#include 

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;
}
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