.Net 站点在Windows环境借助Nginx和Redis实现负载均衡系列

Posted 2020-07-12 六欲

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.Net 站点使用Redis存储Session信息，借助Redis实现多个站点公用Session信息

1.新建一个web项目，我新建的是一个空的MVC的项目。

新建好之后添加Home控制器，新建Index Action方法和View视图文件。

2.使用NuGet添加RedisSessionStateProvider这个引用。

安装完成之后会自动添加三个引用：

Microsoft.Web.RedisSessionStateProvider

StackExchange.Redis.StrongName

StackExchange.Redis

Web.config 会自动添加如下的配置文件

<sessionState mode="Custom" customProvider="MySessionStateStore">
      <providers>
        <!-- For more details check https://github.com/Azure/aspnet-redis-providers/wiki -->
        <!-- Either use \'connectionString\' OR \'settingsClassName\' and \'settingsMethodName\' OR use \'host\',\'port\',\'accessKey\',\'ssl\',\'connectionTimeoutInMilliseconds\' and \'operationTimeoutInMilliseconds\'. -->
        <!-- \'throwOnError\',\'retryTimeoutInMilliseconds\',\'databaseId\' and \'applicationName\' can be used with both options. -->
        <!--
          <add name="MySessionStateStore" 
            host = "127.0.0.1" [String]
            port = "" [number]
            accessKey = "" [String]
            ssl = "false" [true|false]
            throwOnError = "true" [true|false]
            retryTimeoutInMilliseconds = "5000" [number]
            databaseId = "0" [number]
            applicationName = "" [String]
            connectionTimeoutInMilliseconds = "5000" [number]
            operationTimeoutInMilliseconds = "1000" [number]
            connectionString = "<Valid StackExchange.Redis connection string>" [String]
            settingsClassName = "<Assembly qualified class name that contains settings method specified below. Which basically return \'connectionString\' value>" [String]
            settingsMethodName = "<Settings method should be defined in settingsClass. It should be public, static, does not take any parameters and should have a return type of \'String\', which is basically \'connectionString\' value.>" [String]
            loggingClassName = "<Assembly qualified class name that contains logging method specified below>" [String]
            loggingMethodName = "<Logging method should be defined in loggingClass. It should be public, static, does not take any parameters and should have a return type of System.IO.TextWriter.>" [String]
          />
        -->
        <add name="MySessionStateStore" type="Microsoft.Web.Redis.RedisSessionStateProvider" host="" accessKey="" ssl="true" />
      </providers>
    </sessionState>

host改为你的redis服务所在的ip地址，我的是127.0.0.1，ssl给为false，端口号如果不是默认的端口，就自行修改port="XXXX"。

3.在Index方法中添加Session的测试代码测试Redis保存数据是否成功。如果保存的是复杂类型，要加上可序列化标签[Serializable]，如下是我的测试代码

public class HomeController : Controller
    {
        private static string _webSiteStr;

        public static string WebSite
        {
            get
            {
                if (string.IsNullOrWhiteSpace(_webSiteStr))
                {
                    _webSiteStr = System.Configuration.ConfigurationManager.AppSettings["WebSite"];
                }
                return _webSiteStr;
            }
        }
        // GET: Home
        public ActionResult Index()
        {
            System.Web.HttpContext.Current.Session["firstTest"] = "1231";
            Student p = new Student()
            {
                 Age=26,Name="liuyu7177"
            };
            System.Web.HttpContext.Current.Session["Student"] = p;
            return View();
        }
        // GET: Home
        public ContentResult Two()
        {
            var str = (string)System.Web.HttpContext.Current.Session["firstTest"] + WebSite;
            var p = (Student)System.Web.HttpContext.Current.Session["Student"];
            return Content(str);
        }
    }

    [Serializable]
    public class Student
    {
        public string Name { get; set; }

        public int Age { get; set; }
    }