超文本传输协议（HTTP）是一种应用程序级网络协议，用于在万维网上传输内容。
::: mermaid graph LR linkStyle default fill:#ffffff subgraph diagram ["Software System - System Context"] style diagram fill:#ffffff,stroke:#ffffff 1["<div style='font-weight: bold'>Person1</div><div style='font-size: 70%; margin-top: 0px'>[Person]</div>"] style 1 fill:#05527d,stroke:#033957,color:#ffffff 2["<div style='font-weight: bold'>Person2</div><div style='font-size: 70%; margin-top: 0px'>[Person]</div>"] style 2 fill:#05527d,stroke:#033957,color:#ffffff 3["<div style='font-weight: bold'>Software System</div><div style='font-size: 70%; margin-top: 0px'>[Software System]</div>"] style 3 fill:#066296,stroke:#044469,color:#ffffff 1-. "<div>Interacts</div><div style='font-size: 70%'></div>" .->3 2-. "<div>Interacts</div><div style='font-size: 70%'></div>" .->3 end :::
在我的代码urllib.request.urlopen中返回http.client.httpresponse-object，它实现了io.bufferediobase-Interface，返回字节。 我想将这些字节转换为字符串...
在制作NextJS API端点时使用路由处理程序的服务器操作
我有一个Web应用程序，需要向移动应用程序公开API（获取，发布，put和删除端点），目前我在客户端和服务器组件中都进行了获取，但是我查看了客户端Compo ...
当我在后端（Node + Express）中从Angular中提出一个GET请求时，Get请求命中两次。第一个没有令牌，第二个到达，第二个带有令牌。
如何通过应用程序/x-www-form-urlencoded
我正在尝试从外部网站生成令牌，邮政请求必须是应用程序/x-www-form-urlencododod，但我会遇到错误。我认为我没有对内容类型应用程序/x-www-form-urlenceded进行正确的呼吁，但我无法弄清楚如何！ PS：我正在使用Java8
我如何收到对单个TCP/IP请求的多个回复？ 我正在使用我通过TCP/IP连接进行通信的第三方设备。 根据供应商提供的手册，当我发送到运行命令时，该工具是启动的（
SIC_Marking_Tool_Command = command; lblCommandSent.Text = command; #region "Set SIC_Marking_Tool_URI" TcpClient PostMarkingRequestTcpClient = new TcpClient(); PostMarkingRequestTcpClient.Connect("192.168.50.221", 65535); #endregion // Get a client stream for reading and writing. NetworkStream stream = PostMarkingRequestTcpClient.GetStream(); // Translate the passed message into ASCII and store it as a Byte array. Byte[] PostMarkingRequestByteArray = System.Text.Encoding.ASCII.GetBytes("RUN\r\n"); // SIC_Marking_Tool_Command); // Send the message to the connected TcpServer. stream.Write(PostMarkingRequestByteArray, 0, PostMarkingRequestByteArray.Length); // Buffer to store the response bytes. Byte[] PostMarkingResponsed = new Byte[256]; // String to store the response ASCII representation. String responseData = String.Empty; // Read response bytes. Int32 PostMarkingResponsedBytes = stream.Read(PostMarkingResponsed, 0, PostMarkingResponsed.Length); rtbResponses.Text = string.Empty; rtbResponses.Text = Encoding.ASCII.GetString(PostMarkingResponsed, 0, PostMarkingResponsedBytes); int databytes = stream.Read(PostMarkingResponsed, 0, PostMarkingResponsed.Length); #region "wait for test results" if ((int)cbCommand.SelectedIndex == (int)enum_commands.enum_Run) { // Read response bytes. PostMarkingResponsedBytes = stream.Read(PostMarkingResponsed, 0, PostMarkingResponsed.Length); rtbResponses.Text = "\r\n " + rtbResponses.Text + Encoding.ASCII.GetString(PostMarkingResponsed, 0, PostMarkingResponsedBytes); } #endregion Here an the image of my simple POC client [![TCP IP Client Showing the response info received][1]][1] The tool manufacture communication protocol manual states that the following: [![The tool manufacture communication protocol manual states that the following][2]][2] [1]: https://i.sstatic.net/DK6WeP4E.png [2]: https://i.sstatic.net/3GsmE0Ml.png Please see the code below that demonstrates how I handled receiving the multiple response messages. I would be appreciative if anyone has recommendation on how to do things a better way. Would like to thank Marc. I read the linked articles that helped my grasp some of the basic things I was missing. Here's My code: #region "wait for test results" if ((int)cbCommand.SelectedIndex == (int)enum_commands.enum_Run) { string CMDResponse1 = string.Empty; int MarkingResponseBytes = 0; bool ACK_Received = false; //Acknowledge bool DC4_Received = false; //Device Control 4 bool ENQ_Received = false; //Enquiry Transmission bool EOT_Received = false; //End of Transmission bool NAK_Received = false; //Negative Acknowledge while (!NAK_Received && !ENQ_Received) { Byte[] MarkingResponse = new Byte[256]; MarkingResponseBytes = stream.Read(MarkingResponse, 0, MarkingResponse.Length); Thread.Sleep(500); var markresponse = Encoding.ASCII.GetString(MarkingResponse, 0, MarkingResponseBytes); #region "RUN OK response received" if (markresponse.Contains("RUN OK")) { ACK_Received = true; rtbResponses.Text = Encoding.ASCII.GetString(MarkingResponse, 0, MarkingResponseBytes); } #endregion #region "P response received" if (Encoding.ASCII.GetString(MarkingResponse, 0, MarkingResponseBytes).ToLower() == "p") { rtbResponses.Text = rtbResponses.Text + "\n" + Encoding.ASCII.GetString(MarkingResponse, 0, MarkingResponseBytes); } #endregion #region "EOT Repsonse Received" if (markresponse.Contains("\u0004")) { EOT_Received = true; rtbResponses.Text = rtbResponses.Text + "\n" + "End of Transmission (EOT) response received."; } #endregion #region "ENQ Repsonse Received" if (markresponse.Contains("\u0005")) { ENQ_Received = true; rtbResponses.Text = rtbResponses.Text + "\n" + "Enquiry Transmission (ENQ) response received."; } #endregion #region "DC4 Response Received" if (markresponse.Contains("\u0014")) { DC4_Received = true; rtbResponses.Text = rtbResponses.Text + "Device Control 4 (DC4) response received."; } #endregion #region "NAK Response Recieved" if (markresponse.Contains("\u0015")) { NAK_Received = true; rtbResponses.Text = rtbResponses.Text + "\nNegative Acknowledgement (NAK) response received." + "\nMarking out of bounds"; } #endregion } } #endregion #region "Read normal command response bytes" else { Byte[] CommandResponse = new Byte[256]; CommandResponseBytes = stream.Read(CommandResponse, 0, CommandResponse.Length); rtbResponses.Text = Encoding.ASCII.GetString(CommandResponse, 0, CommandResponseBytes); } #endregion
I获得了Laravel的4.2 Homestead Server（NGINX）。 因此，如果我在任何视图中写下类似的文章： I获得了Laravel的4.2 Homestead Server（NGINX）。 因此，如果我在任何类似的视图中写下： <script src="media/js/application.js"></script> <link rel="icon" href="media/img/branding/favicon.png" type="image/x-icon"> <link rel="stylesheet" href="media/css/markdown.css"> IT包含所有文件，但下面的代码不起作用（403错误）： <div style="background-image: url(media/img/image.jpg)"></div> 也是，如果我尝试直接访问 /公共中的某些文件夹 /文件，它也将返回403。为什么？那是我的nginx网站配置（事实是这是自动生成的宅基地配置）： vagrant@homestead:~/work/Timetable$ cat /etc/nginx/sites-enabled/timetable.dev server { listen 80; listen 443 ssl; server_name timetable.dev; root "/home/vagrant/work/Timetable/public"; index index.html index.htm index.php; charset utf-8; location / { try_files $uri $uri/ /index.php?$query_string; } location = /favicon.ico { access_log off; log_not_found off; } location = /robots.txt { access_log off; log_not_found off; } access_log off; error_log /var/log/nginx/timetable.dev-error.log error; sendfile off; client_max_body_size 100m; location ~ \.php$ { fastcgi_split_path_info ^(.+\.php)(/.+)$; fastcgi_pass unix:/var/run/php/php7.0-fpm.sock; fastcgi_index index.php; include fastcgi_params; fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name; fastcgi_intercept_errors off; fastcgi_buffer_size 16k; fastcgi_buffers 4 16k; fastcgi_connect_timeout 300; fastcgi_send_timeout 300; fastcgi_read_timeout 300; } location ~ /\.ht { deny all; } ssl_certificate /etc/nginx/ssl/timetable.dev.crt; ssl_certificate_key /etc/nginx/ssl/timetable.dev.key; } 您给出了两个问题，第一个问题： 您的媒体文件夹应该在资产文件夹下，然后包括： asset('media/img/image.jpg'); 对于第二个问题，它已经存在于此网站上：LARALVHOMESTEAD：403在Nginx上禁止 <div style="background-image: url(/media/img/image.jpg)"></div> 在媒体之前添加额外/ 我不熟悉nginx，但是您是否100％确定文件夹权限应该是什么？ 403转化为禁止的，这意味着您的配置或权限中的某个位置，它正在不允许访问。 如果您尝试chmod -R 777 public？如果这样做，它是否有效？ 其他原因可能是public/storage和storage/app/public之间缺少的符号链接（资产实际上应该存在）。 通过运行此命令来实现： php artisan storage:link the the documentation.。