Levin's Blog-林壽山的c# .net奇幻旅程

一、安裝Git

二、安裝 T

三、記得有繁體中文的語系包，可以一起安裝上

四、安裝Gogs

五、下載透過二進制即可，切到目錄 gogs web

六、下載Jenkins安裝

一、install Hyper-V.bat

pushd "%~dp0"
dir /b %SystemRoot%\servicing\Packages*Hyper-V*.mum >hyper-v.txt
for /f %%i in ('findstr /i . hyper-v.txt 2^>nul') do dism /online /norestart /add-package:"%SystemRoot%\servicing\Packages\%%i"
del hyper-v.txt
Dism /online /enable-feature /featurename:Microsoft-Hyper-V -All /LimitAccess /ALL
pause

二、安裝containers

pushd "%~dp0"
dir /b %SystemRoot%\servicing\Packages*containers*.mum >containers.txt
for /f %%i in ('findstr /i . containers.txt 2^>nul') do dism /online /norestart /add-package:"%SystemRoot%\servicing\Packages\%%i"
del containers.txt
dism /online /enable-feature /featurename:Containers -All /LimitAccess /ALL
pause

三、註冊為非HOME版(專業版)
REG ADD "HKEY_LOCAL_MACHINE\software\Microsoft\Windows NT\CurrentVersion" /v EditionId /T REG_EXPAND_SZ /d Professional /F

四、安裝Docker執行DESKTOP後出現錯誤訊息，下載更新就好
來源文章 https://docs.microsoft.com/en-us/windows/wsl/install-win10#step-4—download-the-linux-kernel-update-package
https://wslstorestorage.blob.core.windows.net/wslblob/wsl_update_x64.msi

程式下載: https://drive.google.com/file/d/1rmz910QWqQxLa8XOMWrFG1fjSTPoTLFd/view?usp=sharing
本篇學會
– LOG的撰寫以及追蹤
– ngrok 讓本機可以debug webhook
– JSON 的基本運用
– LINE BOT初步瞭解(回應訊息)


準備篇

– Visual Studio 

– ngrok(localhost 對應到https public domain的服務)

下載連結:
https://ngrok.com/download

– LINE Developers 帳號(免費)

https://developers.line.biz/en/ “https://developers.line.biz/en/

開發步驟

–  新增asp.net Core web應用程式後按下一步


–  設定專案名稱LINEBOT，建立



–  選擇.NET Core → ASP.NET Core 3.1 →API→建立



–  首先安裝 *serilog.extensions.logging*



–  在Startup.cs加上  ILoggerFactory ，並設定檔名



–  在預設的WeatherForecastController.cs試著加上LOG



–  開啟程式後，到logs目錄下確定LOG正常



–  新增API控制器


–  修改route為 api/linebot ，程式如下

           // 記得using Microsoft.Extensions.Logging;
        readonly ILogger<LINEBOTController> _log;

        public LINEBOTController(ILogger<LINEBOTController> log)
        {
            _log = log;
        }
        [HttpPost]
        public async Task<IActionResult> Post(dynamic request
        {
            string x = Convert.ToString(request);
            _log.LogInformation(x);             
            return Ok(request);
        }



– 執行程式後，打開IIS Express，確認PORT號



– 打開命令提示字元，切換到ngrok目錄下



– 執行命令(記得Port號改成自己對應)
`!ngrok http 33766 -host-header=”localhost:33766″`



– 執行後，會取到一個https開頭網址，記下來後(不要關閉視窗)



– 進到LINE Developer網址，新增Provi![]

– 新增一個 Messaging API的Channel



– 設定名稱與描述、目錄、子目錄後勾選允許相關條款後按Create

– 最後同意使用資訊



– 建立完成後進到MessagingAPI頁籤



– 修改以下內容



– 允許加入群組或多人聊天室



– 停用加入好友訊息以及自動回應訊息，啟用webhook功能





– 加webhook URL輸入



– 輸入確定後按Verify

– 出現 307 Temporary Redirect



– Startup.cs中的 app.UseHttpsRedirection() 註解，重新開啟程式



– 重新驗證後成功！



– 從LOG看到LINE傳來的驗證訊息



## 回聲蟲

– 從開發者網站中的Messaging API得知如何做[回應reply](https://developers.line.biz/en/docs/messaging-api/sending-messages/#reply-messages)



– 安裝 NewtonSoft.Json



– 到LINE DEVELOPER中取得TOKEN複製



– 加上程式如下
–
    public class LineReceivedMessage
    {
        public List<Event> events;
        public LineReceivedMessage()
        {
          events = new List<Event>();
        }
    }
    public class Event
    {
            public string type { get; set; }
           public Source source { get; set; }
         public EventMessage message { get; set; }
         public string replyToken { get; set; }
         public Event()
         {
           source = new Source();
           message = new EventMessage();
         }
    }
    public class Source
    {
         public string userId { get; set; }
    }
    public class EventMessage
    {
        public string id { get; set; }
        public string type { get; set; }
        public string text { get; set; }
    }


– 修改POST函數如下

        public async Task<IActionResult> Post(dynamic request)
        {
            string x = Convert.ToString(request);
            _log.LogInformation(x);               
            var channelAccessToken = “你的TOKEN”;
            var receivedMessage = JsonConvert.DeserializeObject<LineReceivedMessage>(x); // 收到訊息解成物件
            string userid = receivedMessage.events[0].source.userId;  // 取得使用者ID
            string message = receivedMessage.events[0].message.text;  // 取得文字訊息
            var replyToken = receivedMessage.events[0].replyToken;  // 取得回應TOKEN
            var replyMessage = new
            {
                replyToken = replyToken,
                messages = new object[] { new {
                    type = “text”,
                    text = message
                }
                }
            };
            string s = JsonConvert.SerializeObject(replyMessage);  // 轉為JSON字串
            byte[] bytes = Encoding.UTF8.GetBytes(s);
            WebClient webClient = new WebClient();
            webClient.Headers.Clear();
            webClient.Headers.Add(“Content-Type”, “application/json”);
            webClient.Headers.Add(“Authorization”, “Bearer ” + channelAccessToken);
            webClient.UploadData(“https://api.line.me/v2/bot/message/reply”, bytes);
            return Ok(request);
        }


– 結果

##參考資料:

LINE DEVELOPER API文件

[https://developers.line.biz/zh-hant/docs/messaging-api/](https://developers.line.biz/zh-hant/docs/messaging-api/ “https://developers.line.biz/zh-hant/docs/messaging-api/”)

SSL Server Authentication 事件中

Accept := True;

System.Timer 宣告後，如果要處理Form上的元件

會出現需要invoke才能設定的問題。原因是因為UI執行緒與timer不同

網路上一堆解法，結果最單純的是System.Forms.Timer 宣告

timer與UI thread相同了

2020/9/30在embarcadero youtube頻道中發佈了一則Python4Delphi

Python4Delphi 主要作用可以透過Delphi運用 Python的library有：

• TensorFlow –機器學習
  • Google 跟 Brain Team一起開發適用於大部份machine learning器學習
• Numpy 
  • 。
• 熊貓
•  
• Scikit-Learn
• NLTK
• SciPy
• Matplotlib ＆ Seaborn 
• Pillow ＆ MoviePy