[英]ArrayList of Socket doesn't work to send message to Client - Java
我有一个服务器客户端程序,在其中使用JLabel
,我正在尝试与特定的客户端通信。 当我接受任何客户端时,我将其socket
添加到ArrayList<Socket>
,然后分配socket = socketList.get(1);
到我的第一个JLabel
以便套接字将包含连接到服务器的第一个客户端。 但是没有通信发生。 我无法确定问题所在。
//服务器
private void jLabel2MouseClicked(java.awt.event.MouseEvent evt) {
PrintWriter out;
try {
socket = socketList.get(2);
out = new PrintWriter(socket.getOutputStream(), true);
out.println("pc2");
} catch (IOException ex) {
Logger.getLogger(third_frame.class.getName()).log(Level.SEVERE, null, ex);
}
}
public void postListen()
{
new Thread(new Runnable()
{
public void run()
{
connect_clients();
}
}).start();
}
//checking clients connected
void connect_clients()
{
try {
ServerSocket listener = new ServerSocket(7700);
jButton1.setText("Server Running!");
jButton1.setEnabled(false);
try {
while (true) {
//socket = listener.accept();
socketList.add(listener.accept());
try {
clientIP = socket.getLocalAddress().getHostName();
}
finally
{
}
}
}
finally
{
}
}
catch(IOException ex)
{
}
}
//客户
void connect_server()
{
try {
// TODO code application logic here
String serverAddress = JOptionPane.showInputDialog(
"Enter IP Address of a machine that is\n" +
"running the date service on port 9090:");
s = new Socket(serverAddress, 7700);
while(true){
BufferedReader input =
new BufferedReader(new InputStreamReader(s.getInputStream()));
String answer = input.readLine();
System.out.println(answer);
}
}
catch (IOException ex) {
Logger.getLogger(client_form.class.getName()).log(Level.SEVERE, null, ex);
}
}
在我看来,您没有初始化套接字然后尝试调用它,但是如果没有所有代码和错误,很难知道出了什么问题。
//socket = listener.accept();
socketList.add(listener.accept());
try {
clientIP = socket.getLocalAddress().getHostName();
声明:本站的技术帖子网页,遵循CC BY-SA 4.0协议,如果您需要转载,请注明本站网址或者原文地址。任何问题请咨询:yoyou2525@163.com.