8 .net core 配置

柔光的暖阳◎ 2023-03-01 13:56 13阅读 0赞

## JSON 配置 ##

using System;
    using System.IO;
    
    public class Program { 
    public static IConfiguration Configuration {  get; set; }
    
        public static void Main (string[] args = null) { 
            var builder = new ConfigurationBuilder ()
                .SetBasePath (Directory.GetCurrentDirectory ())
                .AddJsonFile ("appsettings.json");
    
            Configuration = builder.Build ();
    
            Console.WriteLine ($"option1 = {Configuration["Option1"]}");
            Console.WriteLine ($"suboption1 = {Configuration["subsection:suboption1"]}");
            Console.Write ($"{Configuration["wizards:0:Name"]}, ");
    
            Console.ReadKey ();
        }
    }

示例使用Json文件

{ 
        "option1": "value1_from_json",
        "option2": 2,
        "subsection": { 
            "suboption1": "subvalue1_from_json"
        },
        "wizards": [
            { 
                "Name": "Gandalf",
                "Age": "1000"
            },
            { 
                "Name": "Harry",
                "Age": "17"
            }
        ]
    }

读取节点：

Console.WriteLine($"suboption1 = {Configuration["subsection:suboption1"]}");

读取数组：

Console.Write($"{Configuration["wizards:0:Name"]}");

## 读取内存匹配并绑定到类 ##

using System;
    using System.Collections.Generic;
    using Microsoft.Extensions.Configuration;
    
    public class Program { 
    public static IConfiguration Configuration {  get; set; }
    
        public static void Main (string[] args = null) { 
            // 内存匹配
            var dict = new Dictionary<string, string> {  
                {  "Profile:MachineName", "Rick" },
                {  "App:MainWindow:Height", "11" },
                {  "App:MainWindow:Width", "11" },
                {  "App:MainWindow:Top", "11" },
                {  "App:MainWindow:Left", "11" }
            };
    
            // 匹配生成器
            var builder = new ConfigurationBuilder ();
            // 添加内存配置
            builder.AddInMemoryCollection (dict);
    
            Configuration = builder.Build ();
    
            var window = new MyWindow ();
            // 将匹配绑定到类
            Configuration.GetSection ("App:MainWindow").Bind (window);
    
            Console.WriteLine ("Press any key...");
            Console.ReadKey ();
        }
    }
    
    public class MyWindow { 
        public int Height {  get; set; }
        public int Width {  get; set; }
        public int Top {  get; set; }
        public int Left {  get; set; }
    }