其他
Surging 社区版本支持.NET Core 3.1
（给DotNet加星标，提升.Net技能）
转自：fanly11 cnblogs.com/fanliang11/p/12171032.html
简介
surging 经过两年多的研发，微服务引擎已经略有雏形，也承蒙各位的厚爱， GitHub上收获了将近2800星，fork 811,付费用户企业也有十几家，还有咨询培训，
在2020年，我们将依靠社区的力量，去完善社区版本，更会花更多的精力去维护好付费用户，大家一起把surging 的社区建设好，还有几天就要过年，大家可以加入surging唯一官方群:615562965, 过年的时候会和往常一样发红包，而且不少哦。让我们过年狂欢起来。
surging 将会有自己的官方站，作者正在用VuePress进行研发，在不久的日子将会和大家见面
新功能简述
1、GRPC协议支持
添加接口，将ServerCallContext参数的默认值设置为null。代码如下：
using Greet;
using Grpc.Core;
using Surging.Core.CPlatform.Ioc;
using Surging.Core.CPlatform.Runtime.Server.Implementation.ServiceDiscovery.Attributes;
using System.Threading.Tasks;
namespace Surging.IModuleServices.Common
{
[ServiceBundle("api/{Service}/{Method}")]
public interface IGreeterService : IServiceKey
{
Task<HelloReply> SayHello(HelloRequest request, ServerCallContext context=null);
}
}添加GreeterBehavior，代码如下
using Greet;
using Surging.Core.CPlatform.Ioc;
namespace Surging.Modules.Common.GreeterServices
{
public partial class GreeterBehavior : Greeter.GreeterBase,IServiceBehavior
{
}
}添加业务代码，代码如下：
using Greet;
using Grpc.Core;
using Surging.IModuleServices.Common;
using Surging.Modules.Common.GreeterServices;
using System.Threading.Tasks;
namespace Surging.Modules.Common.Domain
{
public class GreeterService: GreeterBehavior, IGreeterService
{
public override Task<HelloReply> SayHello(HelloRequest request, ServerCallContext context)
{
return Task.FromResult(new HelloReply
{
Message = "Hello " + request.Name
});
}
}
}客户端GRPC调用，代码如下
using Greet;
using Grpc.Core;
using System;
namespace GrpcService1
{
public class Program
{
public static void Main(string[] args)
{
var channel = new Channel("127.0.0.1", 95, ChannelCredentials.Insecure);
var client = new Greeter.GreeterClient(channel);
var result = client.SayHello(new HelloRequest
{
Name = "fanly"
});
Console.WriteLine("grpc Client Call SayHello():" + result);
Console.ReadKey();
}
}
}2、支持WorkService后台托管守护程序
引擎支持WorkService后台服务，可以支持RPC远程调用开启，关闭，添加任务处理，代码如下：
添加接口代码如下：
[ServiceBundle("Background/{Service}")]
public interface IWorkService : IServiceKey
{
Task<bool> AddWork(Message message);
Task StartAsync();
Task StopAsync();
}然后需要继承BackgroundServiceBehavior，而且服务的生命周期设置为ISingleInstance
public class WorkService : BackgroundServiceBehavior, IWorkService, ISingleInstance
{
private readonly ILogger<WorkService> _logger;
private readonly Queue<Message> _queue = new Queue<Message>();
private readonly IServiceProxyProvider _serviceProxyProvider;
private CancellationToken _token;
public WorkService(ILogger<WorkService> logger, IServiceProxyProvider serviceProxyProvider)
{
_logger = logger;
_serviceProxyProvider = serviceProxyProvider;
}
public Task<bool> AddWork(Message message)
{
_queue.Enqueue(message);
return Task.FromResult(true);
}
protected override async Task ExecuteAsync(CancellationToken stoppingToken)
{
try
{
_token = stoppingToken;
_logger.LogInformation("Worker running at: {time}", DateTimeOffset.Now);
_queue.TryDequeue(out Message message);
if (message != null)
{
var result = await _serviceProxyProvider.Invoke<object>(message.Parameters, message.RoutePath, message.ServiceKey);
_logger.LogInformation("Invoke Service at: {time},Invoke result:{result}", DateTimeOffset.Now, result);
}
if (!_token.IsCancellationRequested)
await Task.Delay(1000, stoppingToken);
}
catch (Exception ex){
_logger.LogError("WorkService execute error, message：{message} ,trace info:{trace} ", ex.Message, ex.StackTrace);
}
}
public async Task StartAsync()
{
if (_token.IsCancellationRequested)
{
await base.StartAsync(_token);
}
}
public async Task StopAsync()
{
if (!_token.IsCancellationRequested)
{
await base.StopAsync(_token);
}
}
}3、支持特性验证
支持接口特性验证，代码如下
[ServiceBundle("api/{Service}/{Method}")]
//[ServiceBundle("api/{Service}")]
//[ServiceBundle("api/{Service}/{Method}/test")]
//[ServiceBundle("api/{Service}/{Method}/test",false)]
public interface IUserService: IServiceKey
{
/// <summary>
/// 获取用户姓名
/// </summary>
/// <param name="id">用户编号</param>
/// <returns></returns>
[ServiceRoute("{id}")]
Task<string> GetUserName([Validate] [Range(1, 10, ErrorMessage = "只能为1到10")] int id);
/// <summary>
/// 获取用户
/// </summary>
/// <param name="user">用户模型</param>
/// <returns></returns>
[Command(Strategy = StrategyType.Injection, Injection = @"return
new Surging.IModuleServices.Common.Models.UserModel
{
Name=""fanly"",
Age=19
};", RequestCacheEnabled = true, InjectionNamespaces = new string[] { "Surging.IModuleServices.Common" })]
[InterceptMethod(CachingMethod.Get, Key = "GetUser_id_{0}", CacheSectionType = SectionType.ddlCache, Mode = CacheTargetType.Redis, Time = 480)]
[Validate]
Task<UserModel> GetUser(UserModel user);
}支持模型特性验证，接口方法一定要添加 [Validate]特性，要不然不会进行验证，代码如下
[ProtoContract]
public class UserModel
{
[ProtoMember(1)]
[CacheKey(1)]
public int UserId { get; set; }
[ProtoMember(2)]
public string Name { get; set; }
[ProtoMember(3)]
[Range(0, 150, ErrorMessage = "年龄只能在0到150岁之间")]
public int Age { get; set; }
[ProtoMember(4)]
[Range(0, 1, ErrorMessage = "性别只能选男或女")]
public Sex Sex { get; set; }
}总结
开源不易，请大家多多支持
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