.Net Core实现选择数据热更新让服务感知配置的变化_实用技巧_

 //通过读取配置文件加载到SystemPath类中 services.Configure(Configuration.GetSection("SystemPath")); //添加服务注入 services.AddSingleton();

 public class SystemPath { public string FilePath { get; set; } }

 public class PathService : IPathService { IOptionsMonitor _options; /// 
 /// 构造函数 /// 
 ///  public PathService(IOptionsMonitor options) { _options = options; } public string GetPath() { return _options.CurrentValue.FilePath; } }

 /// 
 /// 路径 /// 
 [Route("api/[controller]/[action]")] [ApiController] public class PathController : ControllerBase { private readonly IPathService _pathService; /// 
 /// 构造函数 /// 
 ///  public PathController(IPathService pathService) { _pathService = pathService; } /// 
 /// 获取系统路径 /// 
 ///  [HttpGet] public MethodResult GetSystemPath() { return new MethodResult(_pathService.GetPath()); } }

 //通过读取配置文件加载到SystemPath类中 services.Configure(Configuration.GetSection("SystemPath")); //添加服务注入 services.AddScoped();

 public class SystemPath { public string FilePath { get; set; } }

 public class PathService : IPathService { IOptionsSnapshot _options; /// 
 /// 构造函数 /// 
 ///  public PathService(IOptionsSnapshot options) { _options = options; } public string GetPath() { return _options.Value.FilePath; } }

 /// 
 /// 路径 /// 
 [Route("api/[controller]/[action]")] [ApiController] public class PathController : ControllerBase { private readonly IPathService _pathService; /// 
 /// 构造函数 /// 
 ///  public PathController(IPathService pathService) { _pathService = pathService; } /// 
 /// 获取系统路径 /// 
 ///  [HttpGet] public MethodResult GetSystemPath() { return new MethodResult(_pathService.GetPath()); } }