JSON (JavaScript Object Notation) 是一种轻量级的数据交换格式 研究 (二)

这次我们把JSON格式在复杂一点:

比如这样的格式：

{"":[
{"":"","":""},
{"":"","":""},
{"":"","":""}]}

具体数据:

 {"people":[
{"Name":"Eagle","Age":"18","Email":"eaglezzb@gmail.com"},
{"Name":"Porter","Age":"18","Email":"pDDDr@gmail.com"},
{"Name":"EVAL","Age":"18","Email":"EDDa@gmail.com"}]}

下面是完整的编译代码:

有这几个，基本上什么数据都可以用起来了

/////////////////////////////////////////////////////////////////////////////////////////////////////////////////

 #include "stdafx.h"
#include <iostream>
#include <fstream> 
#include <string>
#include <Windows.h>
#include "json.h"




TCHAR szFullConfName[2*MAX_PATH + 1] = {0};


void saveStringToFile(void)
{
TCHAR szFilePath[MAX_PATH + 1]; 
GetModuleFileName(NULL, szFilePath, MAX_PATH); 
(_tcsrchr(szFilePath, _T('\\')))[1] = 0;//删除文件名，只获得路径


TCHAR str_url[2*MAX_PATH + 1] = {0};

lstrcat(str_url, szFilePath);
lstrcat(str_url, _T("msg.json") );
//only for log
lstrcat(szFullConfName, str_url);
//


}


int main(int argc, char* argv[])
{
//解析json
//--======================Reader file====================================--
// Reader file and show Json
saveStringToFile();


Json::Value jsReadValue;
std::ifstream in(szFullConfName);
std::string szReadstr;
std::string szReadmsg;


if(in.is_open())
{
while(in>>szReadstr)
szReadmsg += szReadstr;
}


Json::Reader jsReader;


int ret = jsReader.parse(szReadmsg,jsReadValue);


if(ret)
{ 

/**
{"":[
{"":"","":""},
{"":"","":""},
{"":"","":""}]}
**/
Json::Value jsArrayReaderValue ;
jsArrayReaderValue = jsReadValue["people"];
int iASize =  jsArrayReaderValue.size();
for ( int i=0; i < iASize;i++ )
{
std::string szName =jsArrayReaderValue[i]["Name"].asString();
std::string szAge =jsArrayReaderValue[i]["Age"].asString();
std::string szEmail =jsArrayReaderValue[i]["Email"].asString();

std::cout<<"Name:"<<szName<<" Age: "<<szAge<<"E-Mail:  "<<szEmail<< std::endl;
}




}



in.close();
return 0;
}