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

java.net.BindException: Address already in use: connect是因为在JMeter压测过程中，TCP/IP链接的端口被占用了。这个问题可以通过修改系统注册表或者执行.bat文件来解决。具体来说，Windows提供给TCP/IP链接的端口为1024-5000，并且要四分钟来循环回收他们。如果在短时间内跑大量的请求，就会将端口占满，导致出现这个错误。因此，可以通过修改注册表来增加可用端口的数量，或者执行.bat文件来释放已经占用的端口。

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