使用modbus4j获取数据的例子源代码

import java.text.DecimalFormat; import java.util.Date; import java.util.HashMap; import java.util.Map; import com.bsd.hbdcenter.RtWxcw; public class Test { private static void printUsage(){ System.out.println("Usage: RtWxcw SlaveAddress SerialPort [CycleTime BaudRate DataBits StopBits Parity]"); System.out.println(" windows: RtWxcw 1 COM1 60 9600 8 1 0"); System.out.println(" linux: RtWxcw 1 /dev/ttyS0 60 9600 8 1 0"); System.out.println(" default: "); System.out.println(" CycleTime=60"); System.out.println(" BaudRate=9600"); System.out.println(" DataBits=8"); System.out.println(" StopBits=1"); System.out.println(" Parity=0"); System.out.println(""); } public static void main(String args[]){ if(args == null || args.length == 0 ) { printUsage(); return; } int slaveaddr = 1; String commport = null; int cycletime = 60; int baudrate = 9600; int databits = 8; int stopbits = 1; int parity = 0; int num = args.length; switch( num ) { case 1://一个参数 slaveaddr = Integer.parseInt(args[0]); break; case 2://两个参数 slaveaddr = Integer.parseInt(args[0]); commport = args[1]; break; case 3://三个参数 slaveaddr = Integer.parseInt(args[0]); commport = args[1]; cycletime = Integer.parseInt(args[2]); break; case 4://四个参数 slaveaddr = Integer.parseInt(args[0]); commport = args[1]; cycletime = Integer.parseInt(args[2]); baudrate = Integer.parseInt(args[3]); break; case 5://五个参数 slaveaddr = Integer.parseInt(args[0]); commport = args[1]; cycletime = Integer.parseInt(args[2]); baudrate = Integer.parseInt(args[3]); databits = Integer.parseInt(args[4]); break; case 6://六个参数 slaveaddr = Integer.parseInt(args[0]); commport = args[1]; cycletime = Integer.parseInt(args[2]); baudrate = Integer.parseInt(args[3]); databits = Integer.parseInt(args[4]); stopbits = Integer.parseInt(args[5]); break; case 7://七个参数 slaveaddr = Integer.parseInt(args[0]); commport = args[1]; cycletime = Integer.parseInt(args[2]); baudrate = Integer.parseInt(args[3]); databits = Integer.parseInt(args[4]); stopbits = Integer.parseInt(args[5]); parity = Integer.parseInt(args[6]); break; default://参数错误 System.out.println( "Arguments error!" ); printUsage(); return; } Map<String, String> commparams = new HashMap<String, String>(); commparams.put("slaveId", String.valueOf(slaveaddr)); if ((commport == null)||(commport == "")) { System.out.println( "Arguments error!" ); printUsage(); return; } commparams.put("sname", commport); commparams.put("baudrate", String.valueOf(baudrate)); commparams.put("databits", String.valueOf(databits)); commparams.put("stopbits", String.valueOf(stopbits)); commparams.put("parity", String.valueOf(parity)); Date dt1 = new Date(); Date dt2 = new Date(); long between; long minute1; DecimalFormat df = new DecimalFormat("00"); getData(commparams); while (true){ dt1 = new Date(); between=(dt1.getTime()-dt2.getTime())/1000; minute1=between%3600/cycletime; System.out.print("\b\b\b\b\b\b\b\b\b\b"+"waiting:"+df.format(cycletime-between)); if (Math.abs(minute1)>0) { dt1 = new Date(); dt2 = new Date(); System.out.println(); try { getData(commparams); } catch (Exception e) { e.printStackTrace(); } } try { Thread.sleep(1000); } catch (InterruptedException e) { e.printStackTrace(); } } } private static void getData(Map<String, String> commparams) { System.out.println("--------------------------------------------------"); System.out.print("SlaveAddress:"+commparams.get("slaveId")+"; "); System.out.print("SerialPort:"+commparams.get("sname")+"; "); System.out.print("BaudRate:"+commparams.get("baudrate")+"; "); System.out.print("DataBits:"+commparams.get("databits")+"; "); System.out.print("StopBits:"+commparams.get("stopbits")+"; "); System.out.println("Parity:"+commparams.get("parity")+"; "); Map<String, String> result = RtWxcw.collectionData(commparams,1); for (int i=0; i<result.size(); i++) { if (i % 5 == 1) System.out.println(); System.out.print("val"+i+"="+result.get(String.valueOf(i))+"; "); } System.out.println(""); System.out.println("=================================================="); } }