Azure Service Bus(三)在 .NET Core Web 应用程序发送ServiceBus Queue

 

 

一,引言

  在之前上一篇讲解到 Azure ServiceBus Queue 中,我们实地的演示了在控制台中如何操作ServiceBus Queue ,使用 Azure.Messgae.Service 的依赖包完成 Message 的接收/发送,今天我们继续探究 ServiceBus Queue,如何利用 Microsoft.Azure.ServiceBus 以来完成消息的发送。

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Azure ServiceBus 系列:

1,Azure Service Bus(一)入门简介

2,Azure Service Bus(二)在NET Core 控制台中如何操作 ServiceBus Queue

3,Azure Service Bus(三)在 .NET Core Web 应用程序发送ServiceBus Queue

二,正文

1,创建ServiceBus Queue

Azure Portal 点击 “create a resource”,输入 “Service Bus” 搜索,并且进行创建。

Resource group 选择:“Web_Test_SB_RG”

Namespace name:“cnbateblogweb”

Loaction:“East Asia”

Pricing tier:“Basic”

点击 “Review + create” 进行创建预校验。

校验完成后,点击 “Create” 进行创建

创建完成后,点击 “Go to resource” 跳转到创建好的资源

最后,选择 “Entities=》Queue”,点击 “+ Queue” 添加 ServiceBus Queue

创建 ServiceBus Queue 输入

Name:“cnbateblogweb_queue”

其他参数选择默认,点击 “Create” 进行创建

创建完成后,我们可以在列表中查看到刚刚创建的名字叫 “cnbateblogweb_queue” 的 Queue 的信息了

2,.NET Core Web MVC 添加对 ServiceBus Queue 的消息的发送

2.1,创建Web项目,添加对 "ServiceBus Queue“ 的依赖包

接下来就是创建 Web 项目,点击 “ASP.NET Core Web 应用程序”,并命名为 “Azure.ServiceBus.Web”,我这里选择的目标框架为 “.NET 5.0”

项目创建完成之后,需要添加 Azure ServiceBus 的引用 “Microsoft.Azure.ServiceBus

使用程序包管理控制台进行安装

1
Install-Package Microsoft.Azure.ServiceBus -Version 5.1.0

2.2,创建 ServiceBusQueueSerivice

我们需要创建 ServiceBusQueueSerivice 负责创建与ServiceBus 连接并且发送信息

IServiceBusQueueService

public interface IServiceBusQueueService
    {
        Task SendMessageAsync(Message msg);
    }

 ServiceBusQueueService

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public class ServiceBusQueueService : IServiceBusQueueService
    {
        private readonly AzureServiceBus.IQueueClient _queueClient;

        public ServiceBusQueueService(AzureServiceBus.QueueClient queueClient)
        {
            _queueClient = queueClient;
        }

        public async Task SendMessageAsync(Message msg)
        {
            try
            {
                // Serialize data model and create message.
                string messageBody = JsonSerializer.Serialize(msg);
                // create a message that we can send. UTF-8 encoding is used when providing a string.
                var message = new AzureServiceBus.Message(Encoding.UTF8.GetBytes(messageBody));

                /// send the message
                await _queueClient.SendAsync(message);
            }
            catch (Exception ex)
            {
                
            }
        }
    }
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2.3,创建 ServiceBusQueueController 

通过页面文本输入的表单需要提交内容,再将需要发送的Message 发送到 ServiceBus 中

ServiceBusQueueController

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public class ServiceBusQueueController : Controller
    {
        private IServiceBusQueueService _serviceBusQueueService;

        public ServiceBusQueueController(IServiceBusQueueService serviceBusQueueService)
        {
            _serviceBusQueueService = serviceBusQueueService;
        }

        public IActionResult Index(string msg)
        {
            ViewBag.Message = string.Empty;
            if (!string.IsNullOrEmpty(msg))
                ViewBag.Message = msg;
            return View();
        }

        [Route("ServiceBusQueue/Send")]
        [HttpPost()]
        public async Task<IActionResult> SendMessage(IFormCollection collection)
        {
            var msg = new Message
            {
                Id=1,
                Title = collection["Title"],
                Content = collection["Content"],
                CreateTime=DateTime.Now
            };
            await _serviceBusQueueService.SendMessageAsync(msg);
            return RedirectToAction("Index", "ServiceBusQueue",new {msg= " Success!" });
        }
    }
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用户在页面上提交需要发送的 Message 的内容

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@model Azure.ServiceBus.Web.Models.Message

@{
    ViewData["Title"] = "ServiceBusQueue Page";
}

<!DOCTYPE html>

<html>
<head>
    <meta name="viewport" content="width=device-width" />
    <title>@ViewData["Title"]</title>
</head>
<body>

    <h4>ServiceBusQueue Add Message:<span class="text-success">@ViewBag.Message</span></h4>

    <hr />
    <div class="row">
        <div class="col-md-4">
            <form asp-action="Send">
                <div asp-validation-summary="ModelOnly" class="text-danger"></div>
                <div class="form-group">
                    <label asp-for="Title" class="control-label"></label>
                    <input asp-for="Title" class="form-control" />
                    <span asp-validation-for="Title" class="text-danger"></span>
                </div>
                <div class="form-group">
                    <label asp-for="Content" class="control-label"></label>
                    <input asp-for="Content" class="form-control" />
                    <span asp-validation-for="Content" class="text-danger"></span>
                </div>
                <div class="form-group">
                    <input type="submit" value="Send" class="btn btn-primary" />
                </div>
            </form>
        </div>
    </div>
</body>
</html>
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2.4,依赖注入 Service,Appsettings 配置等

Startup.cs 的ConfigureService 方法

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services.AddSingleton(new Appsettings(Env.ContentRootPath));

services.AddSingleton<AzureServiceBus.QueueClient>(new AzureServiceBus.QueueClient(Appsettings.app("ServiceBus", "PrimaryConnectionString"), Appsettings.app("ServiceBus", "QueueName")));

services.AddSingleton<IServiceBusQueueService, ServiceBusQueueService>();
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Appsettings.cs

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/// <summary>
    /// appsettings.json操作类
    /// </summary>
    public class Appsettings
    {
        static IConfiguration Configuration { get; set; }
        static string contentPath { get; set; }

        public Appsettings(string contentPath)
        {
            string Path = "appsettings.json";


            //如果你把配置文件 是 根据环境变量来分开了,可以这样写
            //string Path = $"appsettings.{Environment.GetEnvironmentVariable("ASPNETCORE_ENVIRONMENT")}.json";

            //var contentPath = env.ContentRootPath;
            Configuration = new ConfigurationBuilder()
               .SetBasePath(contentPath)
               .Add(new JsonConfigurationSource { Path = Path, Optional = false, ReloadOnChange = true })//这样的话,可以直接读目录里的json文件,而不是 bin 文件夹下的,所以不用修改复制属性
               .Build();
        }

        /// <summary>
        /// 封装要操作的字符
        /// </summary>
        /// <param name="sections"></param>
        /// <returns></returns>
        public static string app(params string[] sections)
        {
            try
            {
                var val = string.Empty;
                for (int i = 0; i < sections.Length; i++)
                {
                    val += sections[i] + ":";
                }

                return Configuration[val.TrimEnd(':')];
            }
            catch (Exception)
            {
                return "";
            }
        }
    }
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appsettings.json

"ServiceBus": {
    "PrimaryConnectionString": "Endpoint=sb://cnbateblogweb.servicebus.windows.net/;SharedAccessKeyName=RootManageSharedAccessKey;SharedAccessKey=X3O9dsC0c+mir8A7porSEn9S/LoQX9GB0TNCv0W6Ev0=",
    "QueueName": "CNBATEBLOGWEB_QUEUE"
  }

最重要的一步不要忘记了,回到Azure Portal 上,复制ServiceBus Queue 的 “Shared access policies”

完整代码请查看文章底部 github 地址

posted @ 2021-01-05 16:23  Mars独行侠  阅读(199)  评论(0编辑  收藏  举报