Socket多线程连接,可单播收发信息
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public class more implements Runnable{
private static ServerSocket serverSocket=null;
private Socket Client=null;
private static int PORT=1234;//服务器端口号
private BufferedReader buffRead=null;
private static PrintWriter printWriter=null;
private Thread thread=null;
private static ArrayList<Socket>Socketlist=new ArrayList<Socket>();
more(){
thread=new Thread(this);
}
@Override
public void run() {
// TODO Auto-generated method stub
//阻塞accept,接收到客户端连接
try {
Client=serverSocket.accept();
Socketlist.add(Client);
//System.out.println(Socketlist.size());
System.out.println("list= "+Socketlist.get(Socketlist.size()-1).getInetAddress());
System.out.println("有客户端连接:"+Client.getInetAddress()+" "+Client.getPort());
more more1=new more();
more1.thread.start();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
try {
buffRead=new BufferedReader(new InputStreamReader(Client.getInputStream()));
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
try {
printWriter=new PrintWriter(Client.getOutputStream());
} catch (IOException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
while (true) {
try {
String context=buffRead.readLine();
System.out.println("服务器接收的数据 "+context);
printWriter.write("I Received");
printWriter.flush();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
public static void main(String[] args) {
more Test=new more();
//启动服务器,构造一个ServerSocket
// 操作系统不允许服务器绑定到 1-1023 之间的端口
//如果把参数 port 设为 0, 表示由操作系统来为服务器分配一个任意可用的端口
try {
serverSocket=new ServerSocket(PORT);
System.out.println("服务器启动");
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
System.out.println("服务器已启动,请勿重复创建");
}
Test.thread.start();
while(true){
Scanner scanner=new Scanner(System.in);
if (scanner!=null) {
int string=scanner.nextInt();
System.out.println("请输入字符:\t");
if (string>=0 && string <Socketlist.size()) {
try {
printWriter=new PrintWriter(Socketlist.get(string).getOutputStream());
Scanner scanner1=new Scanner(System.in);
String string2=scanner1.nextLine();
printWriter.write(string2);
printWriter.flush();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
}
}
}
private static ServerSocket serverSocket=null;
private Socket Client=null;
private static int PORT=1234;//服务器端口号
private BufferedReader buffRead=null;
private static PrintWriter printWriter=null;
private Thread thread=null;
private static ArrayList<Socket>Socketlist=new ArrayList<Socket>();
more(){
thread=new Thread(this);
}
@Override
public void run() {
// TODO Auto-generated method stub
//阻塞accept,接收到客户端连接
try {
Client=serverSocket.accept();
Socketlist.add(Client);
//System.out.println(Socketlist.size());
System.out.println("list= "+Socketlist.get(Socketlist.size()-1).getInetAddress());
System.out.println("有客户端连接:"+Client.getInetAddress()+" "+Client.getPort());
more more1=new more();
more1.thread.start();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
try {
buffRead=new BufferedReader(new InputStreamReader(Client.getInputStream()));
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
try {
printWriter=new PrintWriter(Client.getOutputStream());
} catch (IOException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
while (true) {
try {
String context=buffRead.readLine();
System.out.println("服务器接收的数据 "+context);
printWriter.write("I Received");
printWriter.flush();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
public static void main(String[] args) {
more Test=new more();
//启动服务器,构造一个ServerSocket
// 操作系统不允许服务器绑定到 1-1023 之间的端口
//如果把参数 port 设为 0, 表示由操作系统来为服务器分配一个任意可用的端口
try {
serverSocket=new ServerSocket(PORT);
System.out.println("服务器启动");
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
System.out.println("服务器已启动,请勿重复创建");
}
Test.thread.start();
while(true){
Scanner scanner=new Scanner(System.in);
if (scanner!=null) {
int string=scanner.nextInt();
System.out.println("请输入字符:\t");
if (string>=0 && string <Socketlist.size()) {
try {
printWriter=new PrintWriter(Socketlist.get(string).getOutputStream());
Scanner scanner1=new Scanner(System.in);
String string2=scanner1.nextLine();
printWriter.write(string2);
printWriter.flush();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
}
}
}
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