adding the channel 3, 4 for HANS600S-M TCP connection with its template

src/main/java/com/ffii/fpsms/modules/jobOrder/service/PlasticBagPrinterService.kt

@@ -22,6 +22,9 @@ import java.io.PrintWriter
 import java.io.DataOutputStream
 import java.nio.charset.Charset
 
+import java.io.BufferedReader
+import java.io.InputStreamReader
+
 // 1. Data class to store both the raw bytes and the width for XML injection
 data class BitmapResult(val bytes: ByteArray, val width: Int)
 
@@ -270,4 +273,67 @@ open class PlasticBagPrinterService(
         }
     }
 
+    fun sendLaserTcpUpdateAndMark(
+        ip: String = "192.168.76.10",
+        port: Int = 45678,
+        textChannel3: String,               // required – content for channel 3
+        textChannel4: String,               // required – content for channel 4
+        text3ObjectName: String = "Text3",  // EZCAD object name for channel 3
+        text4ObjectName: String = "Text4"   // EZCAD object name for channel 4
+    ): Boolean {
+        var socket: Socket? = null
+        var writer: PrintWriter? = null
+        var reader: BufferedReader? = null
+
+        try {
+            println("Han's Laser TCP: 正在連接 $ip:$port ...")
+            socket = Socket(ip, port).apply {
+                soTimeout = 8000  // 8秒超時，避免卡死
+            }
+
+            writer = PrintWriter(socket.getOutputStream(), true)
+            reader = BufferedReader(InputStreamReader(socket.getInputStream(), Charsets.UTF_8))
+
+            // Helper function: send command and check response
+            fun send(cmd: String): Boolean {
+                writer.println("$cmd\r\n")
+                writer.flush()
+                Thread.sleep(300)  // give device time to process
+
+                val resp = reader.readLine()?.trim() ?: ""
+                println("命令: $cmd → 回應: $resp")
+                return resp.startsWith("OK")
+            }
+
+            // Update channel 3 text
+            val success3 = send("""E3_SetTextObject "$text3ObjectName" "$textChannel3"""")
+
+            // Update channel 4 text
+            val success4 = send("""E3_SetTextObject "$text4ObjectName" "$textChannel4"""")
+
+            // Trigger marking
+            val successMark = send("E3_StartMarking")
+
+            val allSuccess = success3 && success4 && successMark
+
+            if (allSuccess) {
+                println("Han's Laser: 更新並打標成功")
+            } else {
+                println("Han's Laser: 部分命令失敗")
+            }
+
+            return allSuccess
+
+        } catch (e: Exception) {
+            println("Han's Laser TCP 錯誤: ${e.message}")
+            e.printStackTrace()
+            return false
+        } finally {
+            reader?.close()
+            writer?.close()
+            socket?.close()
+            println("Han's Laser TCP 連接已關閉")
+        }
+    }
+
 }

src/main/java/com/ffii/fpsms/modules/jobOrder/web/PlasticBagPrinterController.kt

@@ -3,6 +3,7 @@ package com.ffii.fpsms.modules.jobOrder.web
 import com.ffii.fpsms.modules.jobOrder.service.PlasticBagPrinterService
 import com.ffii.fpsms.modules.jobOrder.web.model.PrintRequest
 import com.ffii.fpsms.modules.jobOrder.web.model.LaserRequest
+import com.ffii.fpsms.modules.jobOrder.web.model.Laser2Request
 import jakarta.servlet.http.HttpServletResponse
 import org.springframework.http.HttpHeaders
 import org.springframework.web.bind.annotation.*
@@ -87,4 +88,29 @@ class PlasticBagPrinterController(
         }
     }
 
+    @PostMapping("/print-laser-tcp")
+    fun printLaserTcp(@RequestBody request: Laser2Request): ResponseEntity<String> {
+        return try {
+            val success = plasticBagPrinterService.sendLaserTcpUpdateAndMark(
+                ip = request.printerIp,
+                port = request.printerPort.toInt(),
+                textChannel3 = request.textChannel3 
+                    ?: throw IllegalArgumentException("缺少 textChannel3"),
+                textChannel4 = request.textChannel4 
+                    ?: throw IllegalArgumentException("缺少 textChannel4"),
+                text3ObjectName = request.text3ObjectName ?: "Text3",
+                text4ObjectName = request.text4ObjectName ?: "Text4"
+            )
+
+            if (success) {
+                ResponseEntity.ok("Han's Laser TCP: 更新文字並觸發打標成功")
+            } else {
+                ResponseEntity.status(500)
+                    .body("Han's Laser TCP: 部分或全部命令失敗，請檢查連接、物件名稱或 EZCAD TCP Server")
+            }
+        } catch (e: Exception) {
+            ResponseEntity.status(500).body("Laser TCP Error: ${e.message}")
+        }
+    }
+
 }