C# JSON 文件到列表

Question

在我的 C# + WPF + .NET 4.5 代码中，假设我定义了一个 Player 类以下方式:

public class Player {
  public string FirstName;
  public string LastName;
  public List<int> Cells;
  public string Level;
}

我有一个 myobjects.json 文件，我设法在其中编写(使用 JSON.NET )这些对象的序列化集合(前两个如下所示):

{
  "FirstName": "Foo",
  "LastName": "Fighter",
  "Cells": [
    1,
    2,
    3
  ],
  "Level": "46"
}{
  "FirstName": "Bar",
  "LastName": "Baz",
  "Cells": [
    104,
    127,
  ],
  "Level": "D2"
}

我想做的是读取文件，反序列化这些对象并填充 Player 的 List:

using (Stream fs = openDialog.OpenFile())
using (StreamReader sr = new StreamReader(fs))
using (JsonTextReader jr = new JsonTextReader(sr)) {
  while (jr.Read()) {
    /* Find player in file */
    Player p = /* Deserialize */
    PlayerList.Add(p);
  }
}

Answer 1

无需逐条阅读。

string json = File.ReadAllText("myobjects.json");
var playerList = JsonConvert.DeserializeObject<List<Player>>(json);

您可以使用此代码将播放器列表写入文件

File.WriteAllText("myobjects.json", JsonConvert.SerializeObject(playerList));