Windows BAT 或 CMD：将一些数据发送到本地主机 udp 端口
声明：本页面是StackOverFlow热门问题的中英对照翻译，遵循CC BY-SA 4.0协议，如果您需要使用它，必须同样遵循CC BY-SA许可，注明原文地址和作者信息，同时你必须将它归于原作者（不是我）：StackOverFlow
原文地址: http://stackoverflow.com/questions/6336941/
Warning: these are provided under cc-by-sa 4.0 license. You are free to use/share it, But you must attribute it to the original authors (not me):
StackOverFlow
Windows BAT or CMD: send some data to a localhost udp port
提问by Bryan Field
I have an app that listens on a localhost port. I want a minimal launcher to bring that app's to the front.
我有一个监听本地主机端口的应用程序。我想要一个最小的启动器来将该应用程序带到前面。
My app is in Java. I don't know how to write any exe files, but I can write bat files, and then make a shortcut that launches the bat file without showing the terminal. I would like to have the bat file send some data to a port (preferably UDP so there will not be any stream overhead).
我的应用程序是 Java。我不知道怎么写任何exe文件，但我可以写bat文件，然后制作一个启动bat文件而不显示终端的快捷方式。我想让 bat 文件将一些数据发送到一个端口（最好是 UDP，所以不会有任何流开销）。
How can I send data to a UDP port?
如何将数据发送到 UDP 端口？
One of the things I thought of was nslookup, but that will only connect to port 53 as far as I know.
我想到的一件事是nslookup，但据我所知，它只会连接到端口 53。
This only needs to work on Windows. Would like it to work on XP and up, but I can make a workaround if necessary.
这只需要在 Windows 上工作。希望它适用于 XP 及更高版本，但如有必要，我可以制定解决方法。
回答by 0x90
This is a job for netcat.
这是 netcat 的工作。
After installing you can easily launch it from the command line or write a BAT script to execute it for you. To send date through UDP rather than TCP, use the "-u" switch.
安装后，您可以轻松地从命令行启动它或编写一个 BAT 脚本来为您执行它。要通过 UDP 而不是 TCP 发送数据，请使用“-u”开关。
For example, to send the data to UPD port 2345 on localhost execute:
例如，要将数据发送到本地主机上的 UPD 端口 2345，请执行：
nc -u localhost 2345
Then type the data you want to send.
然后键入要发送的数据。
回答by Mike Fox
I was having quite a few problems sending a UDP command to a Brightsign digital sign with netcat. I ended up using Swiss File Knife. It is possible I had the syntex wrong with my netcat statement. (If anyone could suggest the correct syntax based on my working SFK statement, I would love to know) I just wanted to send a few asci key words to my sign from a batch file. My sign was 192.168.1.22 and listening on port 5000
我在使用 netcat 向 Brightsign 数字标牌发送 UDP 命令时遇到了很多问题。我最终使用了瑞士锉刀。我的 netcat 语句可能有语法错误。（如果有人可以根据我的工作 SFK 语句建议正确的语法，我很想知道）我只是想从批处理文件中向我的签名发送一些 asci 关键字。我的标志是 192.168.1.22 并监听端口 5000
Here are my working steps:
以下是我的工作步骤：
Download Swiss File Knife SKF: http://swissfileknife.sourceforge.net/
下载瑞士锉刀 SKF：http: //swissfileknife.sourceforge.net/
Copied the file to C:\tools and renamed the sfk174.exe file to skf.exe(to make is shorter) and used the bellow syntax to send the UDP command Special
将文件复制到 C:\tools 并将 sfk174.exe 文件重命名为 skf.exe（使其更短）并使用波纹管语法发送 UDP 命令 Special
C:\tools\sfk udpsend 192.168.1.22 5000 “Special” (make sure you put your asci word in quotes. it will work without but not for words with spaces between)
C:\tools\sfk udpsend 192.168.1.22 5000 “Special”（确保你将你的 asci 词放在引号中。它可以不使用但不适用于中间有空格的词）
I put the commands in a batch file and created a windows icon for the customer and they worked great.
我将命令放在一个批处理文件中，并为客户创建了一个 Windows 图标，它们运行良好。
回答by Ehsan Zargar Ershadi
You can send an udp packet like this : c:\nemesis\nemesis.exe udp -P do7on.txt -D 192.168.0.10 -y 1025
您可以像这样发送 udp 数据包： c:\nemesis\nemesis.exe udp -P do7on.txt -D 192.168.0.10 -y 1025
Nemesis : http://nemesis.sourceforge.net/
