JSON used in the file

#include <iostream>
#include <fstream>
#define JSON_IS_AMALGAMATION
#include "json/json.h"
using std::cout;
using std::endl;

int main(int argc, char** argv) {
Json::Value root;
Json::Reader reader;
std::ifstream config("dev.json", std::ifstream::binary);
if (!reader.parse(config, root, false)) {
cout << "Could not parse json" << endl;
return 1;
}
std::string str = root["redis"].get("host", "localhost").asString();
const char* cstr = root["redis"].get("host", "localhost").asCString();
cout << "1:" << str << endl;
cout << "2:" << cstr << endl;
cout << "3:" << std::string(root["redis"].get("host", "localhost").asCString()) << endl;
config.close();
return 0;
}

void CSettingDlg::SaveConfigure(int model,CString SynchroPath)
{
Json::Value root;
Json::StyledWriter sw;

int nLen=SynchroPath.GetLength();
char *pszTempMult=new char[nLen+1];

WideCharToMultiByte( CP_ACP,0,SynchroPath.GetBuffer(nLen),nLen+1, pszTempMult,nLen+1,NULL,NULL );

//根节点属性
root[ "model" ] = Json::Value( model );
root[ "SynchroPath" ] = Json::Value(pszTempMult);

std::ofstream os;
os.open("ConfigurePath.json",std::ios_base::binary);
if(!os)
{
return ;
}
os<<sw.write(root);
os.close();
delete [] pszTempMult;
}
void CSettingDlg::GetConfigure( int &model,CString &SynchroPath)
{
Json::Reader reader;
Json::Value root;
//从文件中读取
std::ifstream is;
is.open( "ConfigurePath.json" , std::ios_base::binary);
if(!is)
{
return ;
}
if (reader.parse(is,root))
{
model=root["model"].asInt();
SynchroPath=root["SynchroPath"].asString().c_str();
}
is.close();
}