如何使用newtonsoft反序列化json
问题描述:
我对JSON相当陌生,特别是序列化和反序列化。我有这样的JSON,我首先序列化并放入变量。现在我想从这个变量中获取数据。如何使用newtonsoft反序列化json
{
"timestamp": "2017-06-20 12:12:10",
"categories":
[
{
"name": "Fiction",
},
{
"name": "Roman",
}
]
,
"types":
[
{
"name": "Long story",
},
{
"name": "Short story",
}
],
"books":
[
{
"title": "Song of ice and fire",
"bookNumber": "1234567",
"aisle":
[
{
"location": "fiction isle",
},
{
"location": "roman aisle",
}
]
}
]
}
存储在我的VAR JSON
**更新1 **
public List<Books> listOfBooks()
{
var bookList = new List<Books>
{
new Books
{
title = "song of ice and fire"
bookNumber = "1234567",
aisle = listOfAisles()
}
};
return bookList;
}
public List<Aisle> listOfAisles
{
var aisleList = new List<Aisle>
{
new Aisle
{
location = "fiction aisle"
}
};
return aisleList;
}
MainProgram registerBooks = new MainProgram();
var obj = new MainProgram
{
Timestamp = "2017-06-20 09:10:55",
Books = listOfBooks(),
listOfAisles = listOfAisles(),
categories = listOfCategories(),
types = listofTypes()
};
var _myJson = new JavaScriptSerializer().Serialize(object);
Books _books = JsonConvert.DeserializeObject<Books>(_myJson);
string _time = _books.Timestamp;
当我调试我得到时间戳并把它放在_time,它工作正常......但是当我尝试获取其他项目,如categories.name,我无法达到这些项目。
问题是我可能有很多这个JSON内的列表项,不只是一个......我可以有100个类别。如何让这些物品回来?
我应该怎么做?
谢谢!
编辑
public class Books
{
public string title {get;set;}
public string bookNumber {get;set;}
public List<aisle> aisles {get;set;}
}
PS - 低/大写不是问题!它是由于英文翻译
答
类别列表中的列表。所以,如果你想得到它们。通过linq查找特定类别或迭代foreach库并将其全部打印出来。取决于需求。
Library library = JsonConvert.DeserializeObject<Library>(_myJson);
//find category by name
Category finddedCategory = library.categories.FirstOrDefault(x => x.name == "sci-fi");
//print out all names of categories
foreach(Category c in library.categories)
{
Console.Write(c.name);
}
如果您分类_categories = JsonConvert.DeserializeObject(_myJson); 您没有分类吗? –
JBO
什么是Books类的声明? – raichiks
请参阅编辑请@raichiks – aiden87