Evaluate a json method-CodePudding

Have a flat level directory, want to switch to more obvious hierarchy json
Title: directory 1
Level: 1
DesPageNum: 1

Title: directory
1.1Level: 2
DesPageNum: 2

Title: directory
1.2Level: 2
DesPageNum: 3

Title: 2 directory
Level: 1
DesPageNum: 4

Title: directory
2.1Level: 2
DesPageNum: 5

Title: directory 2.1.1
Level: 3
DesPageNum: 6

Title: directory 2.1.2
Level: 3
DesPageNum: 7

Title: directory
2.2Level: 2
11 desPageNum:

Into a hierarchical structure more apparent json

{
"SubBookMark" : [
{
"SubBookMark" : [],
"Title" : "1.1" directory,
"DesPageNum" :
2},
{
"SubBookMark" : [],
"Title" : "1.2" directory,
"DesPageNum" : 3
}
],
"Title" : "1" directory,
1
"desPageNum" :},
{
"SubBookMark" : [
{
"SubBookMark" : [
{
"SubBookMark" : [

],
"Title" : "directory 2.1.1,"
6 "desPageNum" :
},
{
"SubBookMark" : [

],
"Title" : "directory 2.1.2,"
"DesPageNum" : 7
}

],
"Title" : "2.1" directory,
"DesPageNum" : 5
},
{
"SubBookMark" : [],
"Title" : "2.2" directory,
11 "desPageNum" :
},
],
"Title" : "2" directory,
"DesPageNum" : 4
},

CodePudding user response:

Level on behalf of the hierarchy

CodePudding user response:

Build a object and serialization

CodePudding user response:

Create an entity class, corresponding to your data, then the type of serialization into a json

CodePudding user response:

Need to download the Newtonsoft. Json. DLL, and in the project reference

 
Using Newtonsoft. Json; 
using System; 
Using System. Collections. Generic; 
Using System. Linq; 
Using System. The Text; 

The namespace ConsoleApp6 
{
Class Program 
{
The static void Main (string [] args) 
{
Var treeView=new treeView () 
{
Title="2" directory, 
Level=1, 
DesPageNum=4 
}; 
Var childrenTree=new TreeChildrenView () 
{
Title="2.1" directory, 
Level=2, 
DesPageNum=5 
}; 
Var childrenTree2=new TreeChildrenView () 
{
Title="2.2" directory, 
Level=2, 
DesPageNum=6 
}; 
Var chchTree=new Tree2ChildrenView () 
{
2.1.1 "title=" catalogue, 
Level=3, 
DesPageNum=7 
}; 
ChildrenTree. Childrens. Add (chchTree); 
TreeView. Childrens. Add (childrenTree); 
TreeView. Childrens. Add (childrenTree2); 
String json=JsonConvert. SerializeObject (treeView); 
Console. WriteLine (json); 
The Console. ReadLine (); 
} 
} 

///& lt; Summary> 
The first major categories 
//////& lt;/summary> 
Public class TreeView 
{
Public TreeView () 
{
This. Childrens=new List (a); 
} 
[JsonProperty (" title ")) 
Public string title {get; set; } 
[JsonProperty (" Level ")] 
Public int Level {get; set; } 
[JsonProperty (" desPageNum ")] 
Public int desPageNum {get; set; } 
[JsonProperty (" children ")] 
Public IList Childrens {get; set; } 
} 
///& lt; Summary> 
///the first categories included in the second categories: 
///& lt;/summary> 
Public class TreeChildrenView 
{
Public TreeChildrenView () 
{
This. Childrens=new List} 

[JsonProperty (" title ")) 
Public string title {get; set; } 
[JsonProperty (" Level ")] 
Public int Level {get; set; } 
[JsonProperty (" desPageNum ")] 
Public int desPageNum {get; set; } 
[JsonProperty (" children ")] 
Public IList} 
///& lt; Summary> 
///the second categories include third category 
///& lt;/summary> 
Public class Tree2ChildrenView 
{
[JsonProperty (" title ")) 
Public string title {get; set; } 
[JsonProperty (" Level ")] 
Public int Level {get; set; } 
[JsonProperty (" desPageNum ")] 
Public int desPageNum {get; set; } 
} 

}

CodePudding user response:

Only supports fixed 3 layers, such as provinces, cities and counties in this, if it is 4 layer, Tree2ChildrenView plus subclasses in layer 3, the layer structure whether meet the requirements of you

The

refer to the original poster qiujg response:

CodePudding user response:

 public static String SerializeToJsonString (Object data) 
{
Using (MemoryStream ms=new MemoryStream ()) 
{
Var dataContractSerializer=new DataContractJsonSerializer (data. GetType ()); 
DataContractSerializer. WriteObject (ms, data); 
Byte [] json=Ms. ToArray (); 
Return. Encoding UTF8. Get string (json, 0, json. Length); 
} 
} 

Public static T DeserializeFromJsonString (string json) 
{
Using (MemoryStream ms=new MemoryStream (Encoding UTF8. GetBytes (json))) 
{
DataContractJsonSerializer ser=new DataContractJsonSerializer (typeof (T)); 
Return (T) ser. ReadObject (ms). 
} 
}

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