C++ qt中 CJsonObject 读取 .json 文件

 myReadJson.h：

#include <stdio.h>
#include <iostream>
#include <vector>
#include <string>
#include "CJsonObject.hpp"
using namespace std;
using namespace neb;
class MyMap
{
    public:
    int a;
    int b;
    int c;
    int parseJSON(CJsonObject oJson);
};

class Base_MyDevice{
    public:
    string name ;
    int id;
    vector<MyMap> ListMap;
    int parseJSON(CJsonObject oJson);
};


class MyDevice :public Base_MyDevice {
    public: MyDevice( ){};
    public:     MyDevice(string name, int id) {
        this->name = name;
        this->id = id;
    }
}

class MyDeviceList {
    public : vector<MyDevice> devicels;
    MyDeviceList();
    void read_JSon(string path);
}

 myReadJson.cpp：

#include "srxdevice.h"
#include <fstream>
MyDeviceList:: MyDeviceList(){
     read_JSon("C:\\Users\\Administration\\Desktop\\Text.json");
    // read_JSon("Text.json");
}


int MyMap::parseJSON(CJsonObject je) {
    je.Get("a", a);
    je.Get("b", b);
    je.Get("c", c);
    return 0;
}

int Base_MyDevice::parseJSON(CJsonObject oJson) {
    oJson.Get("name",name);
    oJson.Get("id",id);
    for(int n=0; n < oJson["lists"].GetArraySize(); n++){
        MyMap m;
        m.parseJSON(oJson["lists"][n]);
        ListMap.push_back(m);
    }

    return 0;
}

//读取JSON文件
void MyDeviceList::read_JSon(string path)
{
    ifstream t(path);
    string str((istreambuf_iterator<char>(t)),istreambuf_iterator<char>());
    string strValue;
    CJsonObject oJson = CJsonObject(str);

    for(int n=0; n < oJson.GetArraySize(); n++){
        MyDevice m;
        m.parseJSON(oJson[n]);
        devicels.push_back(m);
    }

//    cout << Objson.ToFormattedString();
    cout << "devicels.size()== " << devicels.size() << endl;
}

在main.cpp 中调用MyDeviceList（） 方法 就能打印出来读到Text.json 的 数组长度 

Text.json：示例

[
    {
        "name": "a1",
        "id": 1,
        "lists": [
            {
                "a" : 0,
                "b": 0,
                "c": 8
            },
            {
                "a" : 1,
                "b": 1,
                "c": 7
            }
        ]
    },
    {
        "name": "b1",
        "id": 2,
        "lists": [
            {
                "a" : 0,
                "b": 0,
                "c": 8
            },
            {
                "a" : 1,
                "b": 1,
                "c": 7
            }
        ]
    }
]