开源库地址： https ://github .com /bk192077 /struct_mapping .git
支持结构体，std::strng, std::vcetor, std::list, std::map, std::multimap等类型
注意：需要std c++17 及以上版本支持
测试程序：
cpp
#include "struct_mapping/struct_mapping.h"
#include <list>
#include <iostream>
#include <map>
#include <sstream>
#include <string>
#include <vector>
struct Point
{
Point()
{
struct_mapping::reg(&Point::x, "x");
struct_mapping::reg(&Point::y, "y");
struct_mapping::reg(&Point::z, "z");
}
double x = 0.1;
double y = 0.2;
double z = 0.3;
};
struct LL
{
LL()
{
struct_mapping::reg(&LL::str, "str");
struct_mapping::reg(&LL::mlt, "mlt");
}
std::string str = "abc";
std::map<std::string ,int> mlt = {{"zero", 0}, {"one", 1}, {"two", 2}};
};
struct President
{
President()
{
struct_mapping::reg(&President::name, "name");
struct_mapping::reg(&President::mass, "mass");
struct_mapping::reg(&President::vec, "vec");
struct_mapping::reg(&President::lst, "lst");
struct_mapping::reg(&President::l, "l");
}
std::string name="xiaoli-feidao";
double mass=123.4;
std::vector<int> vec={1,2,3,4,5};
std::list<std::string> lst={"abc","def"};
LL l;
};
struct USA
{
USA()
{
struct_mapping::reg(&USA::president, "president");
}
President president;
};
int main()
{
USA u;
std::ostringstream out;
struct_mapping::map_struct_to_json(u, out, " ");//something out stream directly
std::cout << std::endl;
#if 0
std::cout << out.str() << std::endl;
#endif
u.president.name = "JACK-LEE";
u.president.mass = 76.5;
u.president.lst.push_back("Zara");
u.president.l.str="Scientific Persons";
u.president.l.mlt["aaa"] = -2;
u.president.l.mlt["bbb"] = -1;
struct_mapping::map_struct_to_json(u, out, " ");
std::cout << out.str() << std::endl;
#if 0
LL AB;
AB.str = "Scientific Persons";
AB.mlt["aaa"] = -2;
AB.mlt["bbb"] = -1;
struct_mapping::map_struct_to_json(AB, out, " ");
std::cout << std::endl << out.str() << std::endl;
#endif
}构建指令： g++ ./struct-lys.cpp -std=c++17 -o sl.out -I /home/lys/usr/local/include
运行结果
{
"president": {
"name": "xiaoli-feidao",
"mass": 123.4,
"vec": [
1,
2,
3,
4,
5
],
"lst": [
"abc",
"def"
],
"l": {
"str": "abc",
"mlt": {
"one": 1,
"two": 2,
"zero": 0
}
}
}
}{
"president": {
"name": "JACK-LEE",
"mass": 76.5,
"vec": [
1,
2,
3,
4,
5
],
"lst": [
"abc",
"def",
"Zara"
],
"l": {
"str": "Scientific Persons",
"mlt": {
"aaa": -2,
"bbb": -1,
"one": 1,
"two": 2,
"zero": 0
}
}
}
}