C# 使用Json.NET对数据进行序列化和反序列化 | c# json serialize and deserialize using json.net JsonConvert
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c# json serialize and deserialize using json.net JsonConvert
Guide
Json.NET
- JsonConvert.SerializeObject
- JsonConvert.DeserializeObject
install
Use NuGet to download the package
"Project" -> "Manage NuGet packages" -> "Search for "newtonsoft json". -> click "install".
code
reference
using Newtonsoft.Json;
serialize collections
Product p1 = new Product
{
Name = "Product 1",
Price = 99.95m,
ExpiryDate = new DateTime(2000, 12, 29, 0, 0, 0, DateTimeKind.Utc),
};
Product p2 = new Product
{
Name = "Product 2",
Price = 12.50m,
ExpiryDate = new DateTime(2009, 7, 31, 0, 0, 0, DateTimeKind.Utc),
};
List<Product> products = new List<Product>();
products.Add(p1);
products.Add(p2);
string json = JsonConvert.SerializeObject(products, Formatting.Indented);
//[
// {
// "Name": "Product 1",
// "ExpiryDate": "2000-12-29T00:00:00Z",
// "Price": 99.95,
// "Sizes": null
// },
// {
// "Name": "Product 2",
// "ExpiryDate": "2009-07-31T00:00:00Z",
// "Price": 12.50,
// "Sizes": null
// }
//]
deserialize collections
string json = @"[
{
'Name': 'Product 1',
'ExpiryDate': '2000-12-29T00:00Z',
'Price': 99.95,
'Sizes': null
},
{
'Name': 'Product 2',
'ExpiryDate': '2009-07-31T00:00Z',
'Price': 12.50,
'Sizes': null
}
]";
List<Product> products = JsonConvert.DeserializeObject<List<Product>>(json);
Console.WriteLine(products.Count);
// 2
Product p1 = products[0];
Console.WriteLine(p1.Name);
// Product 1
serialize to json file
public class Movie
{
public string Name { get; set; }
public int Year { get; set; }
}
Movie movie = new Movie
{
Name = "Bad Boys",
Year = 1995
};
// serialize JSON to a string and then write string to a file
File.WriteAllText(@"c:movie.json", JsonConvert.SerializeObject(movie));
// serialize JSON directly to a file
using (StreamWriter file = File.CreateText(@"c:movie.json"))
{
JsonSerializer serializer = new JsonSerializer();
serializer.Serialize(file, movie);
}
Reference
History
- 20190910: created.
Copyright
- Post author: kezunlin
- Post link: https://kezunlin.me/post/22391aa3/
- Copyright Notice: All articles in this blog are licensed under CC BY-NC-SA 3.0 unless stating additionally.
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