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;

}