To see which process is occupied by a port number under Windows

Collated from the network, for reference.

First, see which process the port number is occupied by Netstat-ano, but-O can only show the PID of the process

Take port number 1521 for example:

C:\Documents and Settings\administrator>netstat-ano | Find "1521"
  TCP    0.0.0.0:1521           0.0.0.0:0              listening       212
  tcp    10.0.5.215:1049        10.0.5.215:1521        established     276
  TCP    10.0.5.215:1050        10.0.5.215:1521        established     372
  TCP    10.0.5.215:1051        10.0.5.215:1521        established
  TCP    10.0.5.215:1052        10.0.5.215:1521        established     388
  TCP    10.0.5.215:1521        10.0.5.215:1049        established     212
  TCP    10.0.5.215:1521        10.0.5.215:1050        established     212
  TCP    10.0.5.215:1521        10.0.5.215:1051        established     212
  TCP    10.0.5.215:1521        10.0.5.215:1052        established     212

Then view the process details for 276, 372, 400, 388.

c:\documents and Settings\administrator>tasklist | findstr "212" Tnslsnr. EXE 212 Console 0 6,704 K C:\Documents and Settings\administrator>tasklist |                     findstr "276" Jqs.exe 1276 Console 0 1,812 K Oracle.exe 

276 console 0 156,192 k oscar.exe 5876 Console 0 105,276 k C:\Documents and Settings\administrator>tasklist | findstr "372" Oracle.exe 372 Console 0 118,856 K Java.exe 4 696 Console 0 91,372 K C:\Documents and Settings\administrator>tasklist |                     findstr "388" Msdtc.exe 660 Console 0 4,388 K Oracle.exe 388 Console 0 118,180 k alg.exe 3884 Console 0 2,948 k 

Also, you can use the above method to see which port numbers a process occupies.

Getting PID for a process

C:\Documents and Settings\administrator>netstat-ano | Find "276"
  TCP    0.0.0.0:1047           0.0.0.0:0              listening       276
  TCP    10.0.5.215:1049        10.0.5.215:1521        established     276
  TCP    127.0.0.1:5152         0.0.0.0:0              listening       1276

You can also use the Task Manager to select View-> Select Columns->pid options to view the PID of the program

View the port number that corresponds to the PID process usage

C:\Documents and Settings\administrator>netstat-ano | Find "276"
  TCP    0.0.0.0:1047           0.0.0.0:0              listening       276
  TCP    10.0.5.215:1049        10.0.5.215:1521        Established     276
  TCP    127.0.0.1:5152         0.0.0.0:0              listening       1276