How ports are occupied to resolve

Often, we start the application when the system needs to find the port is occupied, how to know who owns the port, a lot of people are more headache, the following is a very simple method, we hope to be useful

If we need to determine who's taking up our 8080 port,

1. You can view all port occupancy by cmd----"Netstat-ano instructions.
C:\users\administrator>netstat-ano

Active connections

Protocol local address external address state PID

TCP 0.0.0.0:135 0.0.0.0:0 LISTENING 472
TCP 0.0.0.0:445 0.0.0.0:0 LISTENING 4
TCP 0.0.0.0:801 0.0.0.0:0 LISTENING 9524
TCP 0.0.0.0:3306 0.0.0.0:0 LISTENING 2416
TCP 0.0.0.0:5001 0.0.0.0:0 LISTENING 9524
TCP 0.0.0.0:7879 0.0.0.0:0 LISTENING 4860
TCP 0.0.0.0:8009 0.0.0.0:0 LISTENING 9524
TCP 0.0.0.0:8080 0.0.0.0:0 LISTENING 9524
TCP 0.0.0.0:49152 0.0.0.0:0 LISTENING 536
TCP 0.0.0.0:49153 0.0.0.0:0 LISTENING 1052
TCP 0.0.0.0:49157 0.0.0.0:0 LISTENING 616
TCP 0.0.0.0:49160 0.0.0.0:0 LISTENING 1116
TCP 0.0.0.0:49172 0.0.0.0:0 LISTENING 600
TCP 0.0.0.0:49202 0.0.0.0:0 LISTENING 2100
TCP 3.3.10.190:139 0.0.0.0:0 LISTENING 4
TCP 3.3.10.190:51248 10.1.1.3:9090 established 4860
TCP 3.3.10.190:52308 10.10.34.22:80 established 1280
TCP 127.0.0.1:4300 0.0.0.0:0 LISTENING 7060
TCP 127.0.0.1:4301 0.0.0.0:0 LISTENING 7060
TCP 127.0.0.1:8005 0.0.0.0:0 LISTENING 9524
TCP 127.0.0.1:8411 0.0.0.0:0 LISTENING 952
TCP 127.0.0.1:20001 0.0.0.0:0 LISTENING 2620
TCP 127.0.0.1:27382 0.0.0.0:0 LISTENING 3116
TCP 127.0.0.1:49220 127.0.0.1:62522 established 4328
TCP 127.0.0.1:49392 127.0.0.1:49393 established 4860
TCP 127.0.0.1:49393 127.0.0.1:49392 established 4860
TCP 127.0.0.1:50176 127.0.0.1:50177 established 4860
TCP 127.0.0.1:50177 127.0.0.1:50176 established 4860
TCP 127.0.0.1:50183 127.0.0.1:50184 established 6512
TCP 127.0.0.1:50184 127.0.0.1:50183 established 6512
TCP 127.0.0.1:50437 127.0.0.1:50438 established 4860
TCP 127.0.0.1:51249 127.0.0.1:51250 established 4860
TCP 127.0.0.1:51250 127.0.0.1:51249 established 4860
TCP 127.0.0.1:51544 127.0.0.1:51547 established 3108
TCP 127.0.0.1:51547 127.0.0.1:51544 established 9524
TCP 127.0.0.1:62522 0.0.0.0:0 LISTENING 1628
TCP 127.0.0.1:62522 127.0.0.1:49220 established 1628
TCP 192.168.3.7:139 0.0.0.0:0 LISTENING 4
TCP 192.168.3.7:51121 101.231.218.251:444 established 1628
TCP 192.168.3.7:51309 182.118.125.130:80 close_wait 1280
TCP 192.168.3.7:51537 123.155.153.149:80 close_wait 7060
TCP 192.168.3.7:51554 180.168.156.212:2033 established 9524
TCP 192.168.3.7:51559 180.168.156.212:2033 established 9524
TCP 192.168.3.7:51757 180.168.156.212:2033 established 9524
Note: Only part of the clip is intercepted

2. Check the occupancy of the specified port c:\users\administrator>netstat-aon|findstr "8080"

C:\users\administrator>netstat-aon|findstr "8080"

Protocol local address external address state PID
TCP 0.0.0.0:8080 0.0.0.0:0 LISTENING 9524
TCP [::]:8080 [::]:0 LISTENING 9524

P: See, Port is occupied by process number 9524 process, continue to execute the following command: (You can also go to the task Manager to see the PID corresponding process)

3. View the PID corresponding process
C:\users\administrator>tasklist|findstr "9524"

Image name PID session name Session # Memory usage

Javaw.exe 9524 Console 1 886,132 K

P: It's clear that Java.exe is taking up your port. 4. End the process c:\users\administrator>taskkill/f/t/im Java.exe