序列化JSON多维列表时出现问题

Question

我正在使用JSON.Net序列化多维列表，但在使其正确序列化时遇到问题。

以下是我预期的结果：

"children": [ {
"children": [ {
"children": [ {
"date_added": "12995911618983970",
"id": "8",
"name": "NestedNestedURL",
"type": "url",
"url": "http://url.com/"
} ],
"date_added": "12995911579845538",
"date_modified": "12995911618983970",
"id": "5",
"name": "NestedNestedFolder",
"type": "folder"
}, {
"date_added": "12995911609609970",
"id": "7",
"name": "NestedURL",
"type": "url",
"url": "http://url.com/"
} ],
"date_added": "12995911570603538",
"date_modified": "12995911609609970",
"id": "4",
"name": "NestedFolder",
"type": "folder"
}, {
"children": [ {
"date_added": "12995911631570970",
"id": "9",
"name": "NestedURL2",
"type": "url",
"url": "http://url.com/"
} ],
"date_added": "12995911589790970",
"date_modified": "12995911631570970",
"id": "6",
"name": "NestedFolder2",
"type": "folder"
}

然而，这与我实际得到的结果大不相同。我认为，这里的问题是，多个URL可以属于一个文件夹，多个文件夹可以属于一个子文件夹，但我不确定如何实现这一点。这是我目前使用的代码：

public void Sync()
{
Browser browser = new Chrome();
SortableBindingList<Bookmark> marks = browser.ReturnBookmarks();
SortableBindingList<object> newmarks = new SortableBindingList<object>();
int count = 0;
newmarks.Add(new json_top());
json_top top = newmarks[0] as json_top;
top.roots = new json_root();
List<object> roots = new List<object>();
Folder bookmarks_bar = new Folder();
Folder other = new Folder();
List<Object> barlist = new List<Object>();
List<object> otherlist = new List<object>();
List<object> children = new List<object>();
List<string> existingFolders = new List<string>();
bookmarks_bar.date_added = ToChromeTime(marks[0].added);
bookmarks_bar.name = "Bookmarks bar";
other.date_added = ToChromeTime(marks[0].added);
other.name = "Other bookmarks";
bool isBookmarkBar = true;
Folder folder = new Folder();
foreach (Bookmark mark in ordered)
{
List<string> fullpathlist = mark.fullPath.Split('\').ToList();
int count1 = 0;
if (currentPath != mark.fullPath)
{
folder = (createFolder(fullpathlist, fullpathlist[0], mark));
folder.children.Add(setChild(fullpathlist, folder, mark, 1));
count++;
}
json_URL u = new json_URL();
u.date_added = ToChromeTime(mark.added);
u.id = id;
u.name = mark.title;
u.url = mark.url;
folder.children.Add(u);
if(isBookmarkBar)
barlist.Add(folder);
else
{
otherlist.Add(folder);
}
}
bookmarks_bar.children = barlist;
other.children = otherlist;
top.roots.bookmark_bar = (bookmarks_bar);
top.roots.other = other;
string json = JsonConvert.SerializeObject(newmarks, Formatting.Indented);
File.WriteAllText(@"c:person.json", json);
}
Folder setChild(List<string> fullPathList, Folder parent, Bookmark mark, int count )
{
if (count < fullPathList.Count)
{
Folder child = new Folder();
child.date_added = ToChromeTime(mark.added);
child.id = id;
child.name = fullPathList[count];
Folder LIST = setChild(fullPathList, child, mark, count + 1);
child.children= LIST;
return child;
}            
}
public class Folder
{
public List<folderAndURL> children { get; set; }
public long date_added { get; set; }
public long date_modified
{
get { return 0; }
}
public int id { get; set; }
public string name { get; set; }
public string type
{
get { return "folder"; }
}
}

这是我从代码中得到的输出：

"children": [
{
"children": {
"date_added": 12995893609609970,
"id": 0,
"name": "NestedURL",
"type": "url",
"url": "http://url.com/"
},
"date_added": 12995893609609970,
"date_modified": 0,
"id": 0,
"name": "NestedFolder",
"type": "folder"
},
{
"children": {
"date_added": 12995893618983970,
"id": 1,
"name": "NestedNestedURL",
"type": "url",
"url": "http://url.com/"
},
"date_added": 12995893618983970,
"date_modified": 0,
"id": 1,
"name": "NestedFolder",
"type": "folder"
},
{
"children": {
"date_added": 12995893631570970,
"id": 2,
"name": "NestedURL2",
"type": "url",
"url": "http://url.com/"
},
"date_added": 12995893631570970,
"date_modified": 0,
"id": 2,
"name": "NestedFolder2",
"type": "folder"
}

那么，如何更改代码以匹配输入和输出呢？就像我说的，这似乎是关于多个文件夹没有应用到一个父文件夹。

编辑：我已经在这里上传了完整版本的代码，因为由于空间的原因，我删掉了一些部分。

Answer 1

我不知道这是否是您想要的：

/// <summary>
/// Load file from
/// C:UsersXXXXAppDataLocalGoogleChromeUser DataDefaultBookmarks
/// </summary>
[TestFixture]
public class ChromeBookmarks
{
[Test]
public void RoundTripBookmarksTest()
{
JsonSerializer jsonSerializer = JsonSerializer.Create(
new JsonSerializerSettings
{
MissingMemberHandling = MissingMemberHandling.Error,
});
RootObject rootObject;
using (JsonTextReader jsonTextReader = new JsonTextReader(new StringReader(Properties.Resources.Bookmarks))) //I added my bookmars as an embedded txt file for convenience
{
rootObject = jsonSerializer.Deserialize<RootObject>(jsonTextReader);
}
//Here you have the contents of the bookmarks file in rootObject if you need to do manipulations
StringBuilder stringBuilder = new StringBuilder();
using (JsonTextWriter jsonTextWriter = new JsonTextWriter(new StringWriter(stringBuilder)))
{
jsonTextWriter.Formatting = Formatting.Indented;
jsonTextWriter.Indentation = 3;
jsonSerializer.Serialize(jsonTextWriter, rootObject);
}
var json = stringBuilder.ToString();
File.WriteAllText(@"C:person.json", json);
}
}

public class Child
{
[JsonProperty(PropertyName = "children")]
public List<Child> Children { get; set; }
[JsonProperty(PropertyName = "date_added")]
public string DateAdded { get; set; }
[JsonProperty(PropertyName = "id")]
public string Id { get; set; }
[JsonProperty(PropertyName = "name")]
public string Name { get; set; }
[JsonProperty(PropertyName = "type")]
public string Type { get; set; }
[JsonProperty(PropertyName = "url")]
public string Url { get; set; }
[JsonProperty(PropertyName = "date_modified")]
public string DateModified { get; set; }
}

public class Roots
{
[JsonProperty(PropertyName = "bookmark_bar")]
public Child BookmarkBar { get; set; }
[JsonProperty(PropertyName = "other")]
public Child Other { get; set; }
[JsonProperty(PropertyName = "synced")]
public Child Synced { get; set; }
}

public class RootObject
{
[JsonProperty(PropertyName = "checksum")]
public string Checksum { get; set; }
[JsonProperty(PropertyName = "roots")]
public Roots Roots { get; set; }
[JsonProperty(PropertyName = "version")]
public int Version { get; set; }
}

我使用this生成类，没有阅读文档，只是传递了我的书签，所以可能缺少一些字段。

Answer 2

首先分配folder.children = (setChild(fullpathlist, folder, mark, 1));，几行之后用folder.children=(u);覆盖它。您的文件夹对象中不会有递归调用的子对象。