郑君的学习笔记

using System;
using System.Collections.Generic;
using System.Linq;
// NuGet search Management
using System.Management;
using System.Text;

namespace RegLib
{
    public static class RegHelper
    {
        /// <summary>
        /// 获取注册码
        /// </summary>
        /// <param name="password"></param>
        /// <param name="data"></param>
        /// <returns></returns>
        public static string EncodeCode(string password, Dictionary<string, string> data)
        {
            if (data == null || data.Count == 0)
                throw new ArgumentException("data can not be empty");

            var sb = new StringBuilder();
            foreach (var d in data)
            {
                sb.Append($"{d.Key}:{d.Value}").Append(',');
            }
            sb.Remove(sb.Length - 1, 1);
            var text = sb.ToString();
            var bsdata = Encoding.UTF8.GetBytes(text);
            for (var i = 0; i < bsdata.Length; i += 2)
            {
                bsdata[i] = (byte)(~bsdata[i]);
            }
            text = Convert.ToBase64String(bsdata);
            return AESHelper.AesEncrypt(text, password);
        }

        /// <summary>
        /// 解密注册码
        /// </summary>
        /// <param name="password"></param>
        /// <param name="code"></param>
        /// <returns></returns>
        public static Dictionary<string, string> DecodeCode(string password, string code)
        {
            var data = AESHelper.AesDecrypt(code, password);
            var bsdata = Convert.FromBase64String(data);
            for (var i = 0; i < bsdata.Length; i += 2)
            {
                bsdata[i] = (byte)(~bsdata[i]);
            }
            var text = Encoding.UTF8.GetString(bsdata);
            var ret = new Dictionary<string, string>();
            foreach(var it in text.Split(','))
            {
                var vs = it.Split(':');
                if (vs.Length != 2)
                    continue;
                ret[vs[0]] = vs[1];
            }
            return ret;
        }

        /// <summary>
        /// 获取机器码
        /// </summary>
        /// <param name="cpuid"></param>
        /// <param name="diskid"></param>
        /// <returns></returns>
        public static string GetMachineCode(string cpuid, string diskid)
        {
            var id = cpuid + diskid;
            var bs = Encoding.ASCII.GetBytes(id);
            for (var i = 0; i < bs.Length; i += 2)
            {
                bs[i] = (byte)(~bs[i]);
            }
            return Convert.ToBase64String(bs);
        }

        private static string GetCpuID()
        {
            string strCpu = null;
            var myCpu = new ManagementClass("win32_Processor");
            var myCpuCollection = myCpu.GetInstances();
            foreach (var myObject in myCpuCollection)
            {
                strCpu = myObject.Properties["Processorid"].Value.ToString();
            }
            return strCpu;
        }

        private static string GetDiskID()
        {
            var mc = new ManagementClass("win32_NetworkAdapterConfiguration");
            var disk = new ManagementObject("win32_logicaldisk.deviceid=\"c:\"");
            disk.Get();
            return disk.GetPropertyValue("VolumeSerialNumber").ToString();
        }

        /// <summary>
        /// 获取当前电脑的机器码
        /// </summary>
        /// <returns></returns>
        public static string GetCurrentMachineCode()
        {
            var cpuid = GetCpuID();
            if (string.IsNullOrEmpty(cpuid))
                return null;

            var diskid = GetDiskID();
            if (string.IsNullOrEmpty(diskid))
                return null;

            return GetMachineCode(cpuid, diskid).ToLower();
        }
    }
}

<staticContent>
  <mimeMap fileExtension=".mp4" mimeType="video/mp4" />
  <mimeMap fileExtension=".m4a" mimeType="video/mp4"/>
  <mimeMap fileExtension=".m4v" mimeType="video/m4v" />
  <mimeMap fileExtension=".ogv" mimeType="video/ogg"/>
  <mimeMap fileExtension=".webm" mimeType="video/webm"/>
</staticContent>

// 先移除就可以了
<staticContent>
  <remove fileExtension=".mp4" />
  <remove fileExtension=".m4a" />
  <remove fileExtension=".m4v" />
  <mimeMap fileExtension=".mp4" mimeType="video/mp4" />
  <mimeMap fileExtension=".m4a" mimeType="video/mp4"/>
</staticContent>

// database
using Microsoft.EntityFrameworkCore;
MySql.EntityFrameworkCore


在 modle 目录下面添加 模型类

appsettings.json 添加 数据库连接字符串

"ConnnectionStrings":{
    "DefaultConnection":"server=localhost;port=3306;database=monitor;user=root;password=lanbe123"
}

ef database-first

// 命令行工具, 根据数据库建模
dotnet tool install --global dotnet-ef
dotnet tool update --global dotnet-ef
// 用到的包
dotnet add package Microsoft.EntityFrameworkCore.Design
// NuGet 安装包
Pomelo.EntityFrameworkCore.MySql

// 生成类
dotnet ef dbcontext scaffold "Server=127.0.0.1;User=root;Password=lanbe123;Database=monitor" "Pomelo.EntityFrameworkCore.MySql"

public void ConfigureServices(IServiceCollection services)
{
    services.AddControllers();
    services.AddSession();
    DBEntities.ConStr = "server=www.myipp.info;user id=dev;charset=utf8;password=Myipp2015,.dev;persistsecurityinfo=True;database=monitor";
}

public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
{
    if (env.IsDevelopment())
    {
        app.UseDeveloperExceptionPage();
    }

    app.UseRouting();
    app.UseSession();
    app.UseEndpoints(endpoints => //端点中间件 对端点进行配置处理
    {
        endpoints.MapControllerRoute(name: "default", pattern: "{Controller=Home}/{Action=Index}/{id?}");//通过端点中间件实现路由配置 如端点与规则(pattern)相匹配，则推送给相应控制器的对应action
    });
}