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This article is to share with you about how to read and write json files in C#. The editor thinks it is very practical, so I share it with you. I hope you can get something after reading this article.

C # reads and writes json files

1. Install Newtonsoft.Json

Enter in the console and enter. Install-Package Newtonsoft.Json

Then add a reference to the desired project. Locate the installation directory and select the appropriate version.

two。 Create a new config.json file. (names, ladies and gentlemen, please feel free)

{"server": ".", "user": "sa", "passwd": "n123456"}

3.Read

Using System;using System.Collections.Generic;using System.Linq;using System.Text;using System.Threading.Tasks;using System.Configuration;// remember to quote these things, using Newtonsoft.Json;using Newtonsoft.Json.Linq;using System.IO.

Namespace operation json and xml {class ReadJson {public static string Get_server () {try {StreamReader reader = File.OpenText ("config.json"); JsonTextReader jsonTextReader = new JsonTextReader (reader); JObject jsonObject = (JObject) JToken.ReadFrom (jsonTextReader); string server = jsonObject ["server"]. ToString () / / user, passwd is similar to reader.Close (); return server;} catch {/ / add your own points}

4.Write

Public static void Set_server (string server) {try {StreamReader reader = File.OpenText ("config.json"); JsonTextReader jsonTextReader = new JsonTextReader (reader); JObject jsonObject = (JObject) JToken.ReadFrom (jsonTextReader); jsonObject ["server"] = server; / / user, passwd is similar to reader.Close () String output = Newtonsoft.Json.JsonConvert.SerializeObject (jsonObject, Newtonsoft.Json.Formatting.Indented); File.WriteAllText ("config.json", output);} catch {/ / add your own points}}

The above is how to read and write json files in C#. The editor believes that there are some knowledge points that we may see or use in our daily work. I hope you can learn more from this article. For more details, please follow the industry information channel.

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