ASP. NET uses MongoDB first experience

First: Drive

If ASP. NET wants to use a link class that mongodb,.net does not own. Third-party or official link classes.

Of course there are many kinds of drivers, and I will not introduce them.

Today I'll introduce a driver-----MongoDB that I use more often.

Next, we're going to download MongoDB's C # driver, which allows us to use MongoDB in C #. : Https://github.com/samus/mongodb-csharp

The driver we need to access MongoDB in C # is the project MongoDB. Compile this project to get it, file name: MongoDB.dll

Using MongoDB in ASP.

First start MongoDB, I have already introduced in the previous article here does not introduce.

Create an Entity class user table

[CSharp]View Plaincopy

2. Public partial class user{
4. [MongoId]
6. public string uid{ get;  set;}
8. public string name{ get;  set;}
10. public string sex{ get;  set;}
12. public int age{ get;  set;}
14. }

Description: This is a simple class, and [MongoId] in the code is also not possible, if it is written, he will map the "_id" field.

MongoDB Database First build a database called "dbmy", Build a collection (table) "User", in the creation of documents (data).

For example, we need to introduce MongoDB.dll

[CSharp]View Plaincopy

1. Private String _connectionstring = "server=127.0.0.1"; //Database server IP or address
3. Private String _dbname = "dbmy";

Add data [CSharp]View Plaincopy

2. Public void Insert (user user)
4. {
6. User. UID = Guid.NewGuid ().  ToString ("N");
10. //Create a connection first
12. using (Mongo Mongo = new Mongo (_connectionstring)) {
16. //Open Connection
18. Mongo. Connect ();
22. //Switch to the specified database
24. var db = Mongo. Getdatabase (_dbname);
28. //Get the appropriate collection by type
30. var collection = db. Getcollection<user> ();
34. //Insert an object into the collection
36. Collection. Insert (customer);
38. }
40. }

Delete data [CSharp]View Plaincopy

2. Public void Delete (string UId)
4. {
6. using (Mongo Mongo = new Mongo (_connectionstring)) {
8. Mongo. Connect ();
10. var db = Mongo. Getdatabase (_dbname);
12. var collection = db. Getcollection<customer> ();
16. //Delete the specified object from the collection
18. Collection. Remove (x = X.uid = = UID);
20. }
22. }

modifying data [CSharp]View Plaincopy

2. Public void Update (user user)
4. {
6. using (Mongo Mongo = new Mongo (_connectionstring)) {
8. Mongo. Connect ();
10. var db = Mongo. Getdatabase (_dbname);
12. var collection = db. Getcollection<user> ();
16. //Update Objects
18. Collection. Update (user, (x = X.uid = = user. UID));
20. }
22. }

Get Data [CSharp]View Plaincopy

2. Public User GetById (string UId)
4. {
6. using (Mongo Mongo = new Mongo (_connectionstring)) {
8. Mongo. Connect ();
10. var db = Mongo. Getdatabase (_dbname);
12. var collection = db. Getcollection<user> ();
16. //Querying a single object
18. return collection.  FindOne (x = X.uid = = UID);
20. }
22. }

Call

If the operation method is encapsulated in a class called Test.cs.

[CSharp]View Plaincopy

1. Test t=new test ();
2. Inserting data
3. T.insert (User);
5. Update data

ASP. NET uses MongoDB first experience