如何使用Java实现两台PC机之间的串口通信

//SocketClient

import javaioIOException;

import javaioInputStream;

import javaioOutputStream;

import javaioPrintWriter;

import javanetSocket;

import javautilScanner;

import orgapachelog4jLogger;

import comsitinspringserverResponseThread;

/

Socket客户端

@author: sitinspring(junglesong@gmailcom)

@date: 2007-11-16

/

public class SocketClient{

private static Logger logger = LoggergetLogger(ResponseThreadclass);

public static void main(String[] args){

try {

Socket socket=new Socket("127001",2009);

loggerinfo("客户端向服务器发起请求");

try {

InputStream inStream = socketgetInputStream();

OutputStream outStream = socketgetOutputStream();

Scanner in = new Scanner(inStream);

PrintWriter out = new PrintWriter(outStream);

outprintln("地震高岗 一派溪山千古秀");

outflush();

while (inhasNextLine()) {

String line = innextLine();

loggerinfo("客户端获得响应文字="+ line);

}

} finally {

socketclose();

}

} catch (IOException ex) {

exprintStackTrace();

}

}

}

//Member

import javautilComparator;

public class Member implements Comparable {

private String name;

private int age;

public Member(String name, int age) {

thisname = name;

thisage = age;

}

public int compareTo(Object obj) {

Member another = (Member) obj;

//return thisnamecompareTo(anothername);

return thisage-anotherage;

}

public String toString(){

return "Member name="+name+" age="+age;

}

}

//Main

import javautilArrays;

import javautilList;

public class Main{

public static void main(String[] args){

String[] arr={"Andy","Bill","Cindy","Dell"};

List<String> ls=ArraysasList(arr);

for(String str:ls){

Systemoutprintln(str);

}

/List<String> ls=new ArrayList<String>();

lsadd("Felex");

lsadd("Gates");

lsadd("Andy");

lsadd("Bill");

lsadd("Cindy");

lsadd("Dell");

Object[] arr=lstoArray();

for(Object obj:arr){

Systemoutprintln((Object)obj);

}/

/Collectionssort(ls);

for(Member member:ls){

Systemoutprintln(member);

}/

/Member member=new Member("Edin",28);

lsremove(member);

lsremove(2);

lsclear();

List ls2=new ArrayList();/

/for(Member member:ls){

// member

}/

/for(int i=0;i<lssize();i++){

Member member=lsget(i);

}/

/for(Iterator it=lsiterator();ithasNext();){

Member member=(Member)itnext();

}

List<Member> ls2=new ArrayList<Member>();

ls2add(new Member("Felex",21));

ls2add(new Member("Gates",23));

lsaddAll(ls2);

ls2/

/List ls3=null;

Systemoutprintln(ls3isEmpty());/

/List ls3=null;

Systemoutprintln(ls2isEmpty());/

/ls

lsindexOf(o)

lscontains(o)/

//ls2add(1);

}

}

//ResponseThread 这个是server的先启动client（服务器）再启动它。上面三个类是client放在一个文件夹中

import javaioIOException;

import javaioInputStream;

import javaioOutputStream;

import javaioPrintWriter;

import javanetServerSocket;

import javanetSocket;

import javautilScanner;

import orgapachelog4jLogger;

/

响应线程,建立ServerSocket响应客户端Socket请求

@author: sitinspring(junglesong@gmailcom)

@date: 2007-11-16

/

public class ResponseThread implements Runnable {

private static Logger logger = LoggergetLogger(ResponseThreadclass);

// 用于与客户端通信的Socket

private Socket incomingSocket;

public ResponseThread(Socket incomingSocket) {

thisincomingSocket = incomingSocket;

}

public void run() {

try {

try {

// 输入流

InputStream inStream = incomingSocketgetInputStream();

// 输出流

OutputStream outStream = incomingSocketgetOutputStream();

Scanner in = new Scanner(inStream);

PrintWriter out = new PrintWriter(outStream,true);

while (inhasNextLine()) {

String line = innextLine();

loggerinfo("从客户端获得文字:"+line);

String responseLine=line+" 门朝大海 三河合水万年流";

outprintln(responseLine);

loggerinfo("向客户端送出文字:"+responseLine);

}

} finally {

incomingSocketclose();

}

} catch (IOException ex) {

exprintStackTrace();

}

}

public static void main(String[] args) {

try {

ServerSocket socket=new ServerSocket(2009);

loggerinfo("开始监听");

while(true){

Socket incomingSocket=socketaccept();

loggerinfo("获得来自"+incomingSocketgetInetAddress()+"的请求");

ResponseThread responseThread=new ResponseThread(incomingSocket);

Thread thread=new Thread(responseThread);

threadstart();

}

} catch (IOException ex) {

exprintStackTrace();

}

}

}

……你自己把逻辑锁死了。收到一回4字节序列后，flag1置位，之后发送数据。可是在发送数据的时候又会进入中断的，由于接收缓冲区中还是那4字节的序列，于是flag1再次被置位……于是乎进入永不停歇的死循环。你的串口中断应当判断一下是发送还是接收……

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