Printing ZPL over TCP/IP Example Python , Node.js 如何透過TCP/IP 直接送出ZPL檔到條碼機列印

zpl-tcp.js

const net = require('net'); // 引入網路 (Net) 模組
const HOST = '10.10.10.168';
const PORT = 9100;

let zpl = `
^XA
^FO150,40^BY3
^BCN,110,Y,N,N
^FD123456^FS
^XZ
`

// 使用 net.connect() 方法，建立一個 TCP 用戶端 instance
let client = net.connect(PORT, HOST, ()=>{
  console.log('Printing labels...');

  // 向伺服器端發送資料，該方法其實就是 socket.write() 方法，因為 client 參數就是一個通訊端的物件
  client.write(zpl);
  client.end();
});

// data 事件
client.on('data', (data)=>{
  console.log(data.toString());

  // 輸出由 client 端發來的資料位元組長度
  console.log('socket.bytesRead is ' + client.bytesRead);

  // 在列印輸出資料後，執行關閉用戶端的操作，其實就是 socket.end() 方法
  client.end();
});

// end 事件
client.on('end', ()=>{
  console.log('client disconnected');
});

zpl-tcp.py

#!/usr/bin/env python

# ZPL docs can be found at https://support.zebra.com/cpws/docs/zpl/zpl_manual.pdf
# This works with Python 3, change the bytes to str if you are using Python 2

import socket

# One easy way to find the IP address is with this nmap command
# nmap  192.168.0.* -p T:9100 --open

IP = '10.10.10.168'
TCP_PORT = 9100
BUFFER_SIZE = 1024

# This will print a code 128 barcode 
zpl = """
^XA
^FO150,40^BY3
^BCN,110,Y,N,N
^FD123456^FS
^XZ 
"""

s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
s.connect((IP, TCP_PORT))
s.send(bytes(zpl, "utf-8"))
s.close()