例如:
Json::Reader reader;
Json::Value val;
ifstream file("JSON/test.json");
bool success = reader.parse(file, val, false);
vector<string> obj = val.getMemberNames();
for (int i = 0; i < val.size(); i++)
{
// switch type of value
switch (val.get(obj.at(i), "default").type())
{
case stringValue:
cout << "I'm string" << endl;
... need to save **membername** and **value**
break;
case intValue:
cout << "I'm int" << endl;
... need to save **membername** and **value**
break;
case nullValue:
cout << "I'm null" << endl;
break;
case arrayValue:
... code to parse an array (with nested sure) ...
... need to save
break;
case objectValue:
... code to parse an object (with nested sure) ...
... need to save
break;
}
}
示例JSON文件 (JSON/test.json):
{
"layout": "fit",
"xtype": "viewport",
"height": 200,
"style": {
"backgroundColor": "46f0a8"
},
"items":
[
{
"title": "Management Console",
"padding": "10 10 10 10",
"bodyPadding": 10,
"autoScroll": true,
"items2": [1, 2, 3]
}
]
}
在数组items中,我们可以看到另一个称为items2的数组(嵌套的)。
对于数组,可能会经历以下情况:
array[Jacob, Joseph] or
array[{name: Jacob, name: Joseph}] or
array[{name: Jacob}, {name: Joseph}]
对于对象来说,它是相似的。在每个字段中,当然可以是--许多嵌套对象/数组--。如何将数据保存在C++变量中?
发布于 2014-11-11 18:17:36
您将希望使主解析函数具有递归性。然后使用STL类,比如向量,它允许您为数据动态分配更多的存储空间。
https://stackoverflow.com/questions/13102308
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