rapidjson的read和write的sample

头文件

#include "json/document.h"
#include "json/prettywriter.h"
#include "json/stringbuffer.h"

 

这是生成数组的

void test()
{
    string info = "{\"id\":\"1111111\",\"cards\":[0,1,2,3,4,5,6,7,8,9],\"jiaoDiZhu\":\"\"}";

    rapidjson::Document doc;
    doc.Parse<0>(info.c_str());

    rapidjson::Value &dataArray = doc["cards"];

    if (dataArray.IsArray())
    {
        for (rapidjson::SizeType i = 0; i < dataArray.Size(); i++)
        {
            const rapidjson::Value& object = dataArray[i];

            printf("%d\n",object.GetInt());
        }
    }
}

 

void test()
{
    //read json
    string updateInfo = "{\"UpdateInfo\":[{\"url\":\"aaaa.ipa\",\"platform\":\"ios\"}]}";
    
    rapidjson::Document doc;
    doc.Parse<0>(updateInfo.c_str());

    rapidjson::Value &dataArray = doc["UpdateInfo"];

    if (dataArray.IsArray())
    {
        for (int i = 0; i < dataArray.Size(); i++)
        {
            const rapidjson::Value& object = dataArray[i];

            string url = object["url"].GetString();
            string platform = object["platform"].GetString();
        }
    }



    //write json
    rapidjson::Document document;
    document.SetObject();
    rapidjson::Document::AllocatorType& allocator = document.GetAllocator();

    rapidjson::Value array(rapidjson::kArrayType);

    for (int i = 0; i < 10; i++)
    {
        rapidjson::Value object(rapidjson::kObjectType);
        object.AddMember("id", 1, allocator);
        object.AddMember("name", "test", allocator);
        object.AddMember("version", 1.01, allocator);
        object.AddMember("vip", true, allocator);

        object.SetInt(i);
        array.PushBack(object, allocator);
    }

    document.AddMember("title", "PLAYER INFO", allocator);
    document.AddMember("players", array, allocator);

    rapidjson::StringBuffer buffer;
    rapidjson::Writer<rapidjson::StringBuffer> writer(buffer);
    document.Accept(writer);
    auto out = buffer.GetString();
    log("out: %s", out);
}

 

下面是单个的

void readTest()
{
    char json[] = "{\"carriorName\":\"日本电信\",\"deviceName\":\"iPhone5,2\",\"osName\":\"android\",\"osVersion\":\"8.1\",\"appId\":\"com.mmcshadow.doudizhu\",\"versionName\":\"1.0\",\"versionCode\":\"1.0\",\"deviceId\":\"11111111\"}";
    rapidjson::Document d;
    d.Parse<0>(json);
    printf("%s\n", d["carriorName"].GetString());
    printf("%s\n", json);
}

void writeTest()
{
    rapidjson::Document document;
    rapidjson::Document::AllocatorType& allocator = document.GetAllocator();
    rapidjson::Value root(rapidjson::kObjectType);
    root.AddMember("name", "哥伦布啊", allocator);
    root.AddMember("gold",1234,allocator);
    rapidjson::StringBuffer buffer;
    rapidjson::Writer<rapidjson::StringBuffer> writer(buffer);
    root.Accept(writer);
    std::string reststring = buffer.GetString();
    std::cout << reststring << std::endl;
}