cocos2dx3.4 保存json文件

头文件：

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

代码：

void UserManage::SaveUserToFile()
{
    do 
    {
        CC_BREAK_IF(_userMap.size()==0);

        rapidjson::Document doc;
        doc.SetObject();
        rapidjson::Document::AllocatorType& allocator=doc.GetAllocator();
        rapidjson::Value uList(rapidjson::kArrayType);

        UserMap::iterator it;
        for(it=_userMap.begin();it!=_userMap.end();it++)
        {
            User *pUser=it->second;
            if (pUser)
            {
                rapidjson::Value uValue(rapidjson::kObjectType);
                uValue.AddMember("UserId",pUser->_userId,allocator);
                uValue.AddMember("AccountName",pUser->_accountName.c_str(),allocator);
                uValue.AddMember("Password",pUser->_password.c_str(),allocator);
                uValue.AddMember("RegisterTime",pUser->_registerTime,allocator);
                uValue.AddMember("VipMoney",pUser->_vipMoney,allocator);
                uValue.AddMember("VipLevel",pUser->_vipLevel,allocator);
                uValue.AddMember("RoleId",pUser->_roleId,allocator);

                uList.PushBack(uValue,allocator);
            }
        }
        rapidjson::StringBuffer buff;
        rapidjson::Writer<rapidjson::StringBuffer> writer(buff);
        doc.Accept(writer);

        FILE* pFile=fopen(_userCfgPath.c_str(),"wb");
        if (pFile)
        {
            fputs(buff.GetString(),pFile);
            fclose(pFile);
        }else
        {
            CCLOG("UserManage::SaveUserToFile error! can not open %s",_userCfgPath.c_str());
        }

    } while (0);

}