.NET Core读取配置文件
https://www.jb51.net/article/254440.htm
1. 说明
默认情况下读取配置Configuration的默认优先级：ConfigureAppConfiguration(自定义读取)>CommandLine(命令行参数)>Environment(环境变量)>appsetting.json(默认配置文件)>UseSetting的顺序
原因：读取配置的顺序是后来者居上模式，后来注册的会优先被读取到。
2. 获取配置
2.1 获取单个项
1 2 3 4 5 6 7 8 9 | //值是数组 var a0 = Configuration.GetSection("RabbitMQ:Hosts").Get<string[]>();//获取数组第一个 var a0 = Configuration["RabbitMQ:Hosts:0"];//值是int类型 var a1 = Configuration.GetValue<int>("RabbitMQ:Port");//值是字符串var a2 = Configuration.GetValue<string>("RabbitMQ:UserName");var a2 = Configuration["RabbitMQ:UserName"]; |
2.2 映射项到模型类
模型类
1 2 3 4 5 6 7 8 9 10 11 12 13 | public class RabbitMQConfig{ public const string RabbitMQ = "RabbitMQ"; public string[] Hosts { get; set; } public int Port { get; set; } public string UserName { get; set; } public string Password { get; set; } public string VirtualHost { get; set; }} |
appsettings
1 2 3 4 5 6 7 | "RabbitMQ": { "Hosts": [ "xxx.xxx.xxx.xxx" ], "Port": 5672, "UserName": "admin", "Password": "xxxxxx", "VirtualHost": "myQueue"} |
2.2.1 注入模型类
1 2 3 4 5 6 7 8 | //startup配置 services.Configure<RabbitMQConfig>(Configuration.GetSection(RabbitMQConfig.RabbitMQ));//获取数据private readonly RabbitMQConfig _rabbitMQConfig;public WeatherForecastController(IOptions<RabbitMQConfig> options){ _rabbitMQConfig = options.Value;} |
2.2.2 映射项到模型类
1 2 3 4 | var info = new RabbitMQConfig();Configuration.Bind(RabbitMQConfig.RabbitMQ, info);//or Configuration.GetSection(RabbitMQConfig.RabbitMQ).Bind(info); |
到此这篇关于.NET Core读取配置文件的文章就介绍到这了。希望对大家的学习有所帮助，也希望大家多多支持脚本之家。
