我有这样的代码
try {
ServerSocket serverSocket = null;
try {
serverSocket = new ServerSocket(888);
} catch (IOException e) {}
Socket clientSocket = null;
try {
clientSocket = serverSocket.accept();
} catch (IOException e) {}
out = new PrintWriter(clientSocket.getOutputStream(), true);
in = new BufferedReader(new InputStreamReader(clientSocket.getInputStream()));
String inputLine, outputLine;
while ((inputLine = in.readLine()) != null) {
outputLine = "SRV:>"+inputLine+"<:VRS";
out.println(outputLine);
taWyjscie.append(outputLine+"\n");
if (inputLine.equals("Bye."))
break;
}
out.close();
in.close();
clientSocket.close();
serverSocket.close();
} catch (IOException ex) {
taWyjscie.append("Błąd I/O: "+ex.getLocalizedMessage() + "\n");
}
它可以工作,但应用程序无法使用,直到客户端发送“再见”。
我希望能够通过 gui 从服务器向客户端发送消息,所以我与 SwingWorker 进行斗争,我得到了这个:
try {
ServerSocket serverSocket = null;
try {
serverSocket = new ServerSocket(888);
} catch (IOException e) {}
Socket clientSocket = null;
try {
clientSocket = serverSocket.accept();
} catch (IOException e) {}
out = new PrintWriter(clientSocket.getOutputStream(), true);
in = new BufferedReader(new InputStreamReader(clientSocket.getInputStream()));
String inputLine, outputLine;
zadanie = new ServerTask(in);
} catch (IOException ex) {
taWyjscie.append("Błąd I/O: "+ex.getLocalizedMessage() + "\n");
}
private class ServerTask extends SwingWorker<String, String> {
private BufferedReader iin;
public ServerTask(BufferedReader win) {
this.iin = win;
}
@Override
protected String doInBackground() throws Exception {
String input;
while ((input = iin.readLine()) != null) {
System.out.println(input);
publish(input);
if (isCancelled())
break;
}
return null;
}
@Override
protected void process(List<String> chunks) {
for(String el : chunks) {
textAreaOUT.append(el+"\n");
}
}
}
现在我无法从服务器向客户端发送消息,但来自客户端的消息不会显示在文本区域中。我从早上就开始战斗,我不知道 Swingworker 是如何工作的......
PS。前面的 try ... catch 位于按钮操作执行函数中(如果有任何区别)最佳答案
您从未在 SwingWorker
上调用 execute
,这是您的第一个错误。从那里开始..
关于java - SwingWorker 并从套接字检索数据,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/9025007/