一；’移植第三方库
下载第三方库源码网站
https://sourceforge.net/projects/jsoncpp/
编译第三方库的静态lib
https://www.cnblogs.com/arxive/p/11220854.html
注意链接时要与生成是的格式形式一致这里都是多线程的MDT链接
https://blog.csdn.net/chenxun_2010/article/details/41847131
编译的时候还注意包含include的时候采用""容易编过，
二；使用第三方库API
1、解析json文件
解析的json文件
{
"name": "BeJson",
"url": "http://www.bejson.com",
"page": 88,
"isNonProfit": true,
"address": {
"C1":{
"street": "科技园路.",
"IP":"123"
},
"C2":{
"street": "江苏苏州.",
"IP":"1234"
},
"C3":{
"street": "中国.",
"IP":"12345"
}
},
"links": [
{
"name": "Google",
"url": "http://www.google.com"
},
{
"name": "Baidu",
"url": "http://www.baidu.com"
},
{
"name": "SoSo",
"url": "http://www.SoSo.com"
}
]
}
解析核心代码
Json::Reader reader;
Json::Value root;
int nRole = 0;
string strname;
string strurl;
int ipage;
bool bisNonProfit;
vector<string> vc_strMemerName;
// 解析json内容
if (reader.parse(is, root))
{
strname = root["name"].asString();
strurl = root["url"].asString();
ipage = root["page"].asInt();
bisNonProfit = root["isNonProfit"].asBool();
cout << "name:" << strname << endl;
cout << "url:" << strurl << endl;
cout << "page:" << ipage << endl;
cout << "isNonProfit:" << bisNonProfit << endl;
Json::Value Obj_address;
bool b_isAddressObj = root.isMember("address");//遍历对象组合
if (b_isAddressObj)
{
int i_size = root["address"].size();
vc_strMemerName = root["address"].getMemberNames();
for (int i = 0; i < vc_strMemerName.size(); i++)
{
cout << vc_strMemerName[i] << ":" << root["address"][vc_strMemerName[i]]["street"].asString() << endl;
cout << vc_strMemerName[i] << ":" << root["address"][vc_strMemerName[i]]["IP"].asString() << endl;
}
}
if (root["links"].isArray())//遍历数组是对象的组合
{
int i_size = root["links"].size();
for (int i = 0; i < i_size; i++)
{
cout << root["links"][i]["name"].asString() << endl;
cout << root["links"][i]["url"].asString() << endl;
}
}
}
is.close();
2、递归解析菜单库，输出菜单层级
其格式为有部分对象节点中包含children数组节点(其中包含多个对象，而对象里面又可以包含children数组)
大致为很多children这种类型，提取出children子菜单的菜单层级表
{
"data"：
{
"jsonMenu"：
{
"id":"123",
"displayName":"zw"，
"Type"："P",
"children"：
[
{
"id":"1233",
"displayName":"z2w"，
"Type"："P1",
"children":
[
]
},
{
"id":"12335",
"displayName":"z2w2"，
"Type"："P13",
"children":
[
{
"id":"12336",
"displayName":"z2w42"，
"Type"："P13234",
"children":
[
]
},
{
"id":"1233ss6",
"displayName":"z2w4sd2"，
"Type"："P13qwew234",
"children":
[
"id":"1s6",
"displayName":"w4sd2"，
"Type"："P134",
"children":
[
]
]
}
]
}
]
}
}
}
三；jsonCpp源码学习（如果解析出json文件数组进行存储到root中来让我们提取的）
等C++课程第三部分看完，及时填充上，以及解析XML格式文件和其源码