Boost Serialization的主要概念是归档。归档的文件是相当于序列化的C++对象的一个字节流。对象可以通过序列化添加到归档文件，反过来也可从归档文件中加载。
一、自定义数据结构
class DateTime
{
public:
DateTime(int y=0, int m=0, int d=0)
{year = y; month = m; day = d;}
void Display(void)
{cout << year << "-" << month << "-" << day << endl;}
template<class Archive>
friend void serialize(Archive &ar, DateTime &dt, const unsigned int version);
private:
int year;
int month;
int day;
};
二、序列化与反序列化
#include <boost/archive/text_oarchive.hpp>
#include <boost/archive/text_iarchive.hpp>
#include <boost/serialization/vector.hpp>
#include <fstream>
#include <iostream>
using namespace std;
class DateTime
{
public:
DateTime(int y=0, int m=0, int d=0)
{year = y; month = m; day = d;}
void Display(void)
{cout << year << "-" << month << "-" << day << endl;}
template<class Archive>
friend void serialize(Archive &ar, DateTime &dt, const unsigned int version);
private:
int year;
int month;
int day;
};
template<class Archive>
void serialize(Archive &ar, DateTime &dt, [[maybe_unused]] const unsigned int version)
{
ar & dt.year;
ar & dt.month;
ar & dt.day;
}
int main(void)
{
// 序列化
ofstream out("/home/ycxie/Workspace/QtDemo/boost.txt");
boost::archive::text_oarchive oa(out);
string data1 = "回头看高考青春永不老";
oa << data1;
vector<string> vec1 = {"回头看高考", "青春永不老"};
oa << BOOST_SERIALIZATION_NVP(vec1);
DateTime dt1(2022, 6, 6);
oa << dt1;
out.close();
// 反序列化
ifstream in("/home/ycxie/Workspace/QtDemo/boost.txt");
boost::archive::text_iarchive ia(in);
string data2;
ia >> data2;
cout << data2 << endl;
vector<string> vec2;
ia >> vec2;
for(auto it=vec2.begin(); it!=vec2.end(); it++)
{
cout << *it << endl;
}
DateTime dt2;
ia >> dt2;
dt2.Display();
return 0;
}