Java：检查哪些进程绑定到端口？

发布于 2024-09-01 12:44:58 字数 403 浏览 7 评论 0原文

我正在 Netbeans 中开发一个应用程序，它使用 JavaDB。我可以连接到它并毫无问题地执行查询，但由于某种原因，Netbeans 中的“输出 - JavaDB 数据库进程”窗格不断显示

Security manager installed using the Basic server security policy.
Could not listen on port 1527 on host localhost:
 java.net.BindException: Address already in use

如何找出正在使用的进程，或绑定到该端口？

在 Ubuntu Karmic、Netbeans 6.7.1 上

原文

I am developing an application in Netbeans, and it is using JavaDB. I can connect to it and execute queries without issues, but for some reason, the "Output - JavaDB Database Process" pane within Netbeans keeps displaying

Security manager installed using the Basic server security policy.
Could not listen on port 1527 on host localhost:
 java.net.BindException: Address already in use

How do I find out what process is already using, or bound to that port?

On Ubuntu Karmic, Netbeans 6.7.1

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一笔一画续写前缘 2024-09-08 12:44:58

要查找侦听端口 1527 的进程的 pid，请使用：

$ netstat -ap | grep 1527
tcp6       0      0 localhost:1527          [::]:*                  LISTEN      31962/java

或

$ lsof -i :1527
COMMAND   PID   USER   FD   TYPE   DEVICE SIZE/OFF NODE NAME
java    31962 pascal   28u  IPv6 13413903      0t0  TCP localhost:1527 (LISTEN)

然后：

$ ps aux | grep 31962 | grep -v grep
pascal   31962  0.1  0.2 674936  4172 pts/1    Sl   May08   1:23 /usr/lib/jvm/java-6-sun/bin/java -classpath /usr/share/javadb/lib/derby.jar:/usr/share/javadb/lib/derbynet.jar:/usr/share/javadb/lib/derbytools.jar:/usr/share/javadb/lib/derbyclient.jar org.apache.derby.drda.NetworkServerControl start

我很确定您会找到与 JavaDB 对应的 Java 进程的 pid（我不知道很多进程）除了 JavaDB 之外，还使用端口 1527）。你实际上是如何开始的？

PS：我正在使用 JavaDB，它是在任何 IDE 之外的命令行上启动的。

To find the pid of a process listening to the port 1527, either use:

$ netstat -ap | grep 1527
tcp6       0      0 localhost:1527          [::]:*                  LISTEN      31962/java

$ lsof -i :1527
COMMAND   PID   USER   FD   TYPE   DEVICE SIZE/OFF NODE NAME
java    31962 pascal   28u  IPv6 13413903      0t0  TCP localhost:1527 (LISTEN)

And then:

$ ps aux | grep 31962 | grep -v grep
pascal   31962  0.1  0.2 674936  4172 pts/1    Sl   May08   1:23 /usr/lib/jvm/java-6-sun/bin/java -classpath /usr/share/javadb/lib/derby.jar:/usr/share/javadb/lib/derbynet.jar:/usr/share/javadb/lib/derbytools.jar:/usr/share/javadb/lib/derbyclient.jar org.apache.derby.drda.NetworkServerControl start

And I'm pretty sure that what you'll find is the pid of a Java process corresponding to JavaDB (I don't know many processes using port 1527 apart from JavaDB). How did you actually start it?

PS: I'm using JavaDB that I'm starting on the command line, outside any IDE.

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