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java - 使用服务器套接字后如何关闭端口

转载 作者:搜寻专家 更新时间:2023-11-01 00:58:20 24 4
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在我的应用程序中,我创建了一个带有一些端口的 ServerSocket 实例。完成后,我关闭套接字,但是当我尝试在同一端口上创建一个新的 ServerSocket 时,它会抛出:

"java.net.BindException: Address already in use"

如果我用不同的端口创建 ServerSocket,它就可以工作。

ServerSocket.isClosed 也返回 true

问题是什么?

public void run() {
try {
BufferedInputStream bufferedinputstream = new BufferedInputStream(
new FileInputStream(fileReq));
BufferedOutputStream outStream = new BufferedOutputStream(
cs.getOutputStream());
byte buffer[] = new byte[1024];

int read;
System.out.println(cs);
while ((read = bufferedinputstream.read(buffer)) != -1)
{
outStream.write(buffer, 0, read);
outStream.flush();
}
System.out.println("File transfered");
outStream.close();
bufferedinputstream.close();

try {
this.finalize();
} catch (Throwable e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
} catch (Exception e) {
System.out.println("Exce....");
System.out.println(e.getMessage());
}
finally
{
if ( cs != null)
try {
int usedPort=cs.getLocalPort();
System.out.println("Closing "+cs);
cs.close();
System.out.println(cs+" Closed");
System.out.println("asd"+cs.isClosed());
portManager.getInstance().mp.put(usedPort,true);
} catch (IOException e) {
System.err.println("in sendToClient can't close sockt");
System.err.println(e.getMessage());
}
}

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