Get Started with WLST: bouncing applications

Bouncing an application is a common Java EE development task. On a Weblogic server, we can take advantage of WLST (Weblogic scripting tool) to automate it.

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WLST Python Script

Create a python script, bounce-app.py,  as follows:

#--------------------------------------

# Review and modify me

#--------------------------------------

url = 't3://localhost:7001'
username = 'weblogic'

password = 'weblogic1'

applicationName = 'sampleApp'

# Connecting to the weblogic server

try:

   connect(username, password)

except:

   print("Failed to connect to the Weblogoic server!")

   print("Verify whether the server is up and the credential is correct.")

   exit()

else:

   print("Connnected to the Weblogoic server...")

  

# Bounce the application   

try:

   stopApplication(applicationName)

   startApplication(applicationName)

except:

   print("Failed to bounce the application")

else:

   print("\n\nBounced the application successfully!")   

# Closing down

disconnect()

exit()

Command Line Invocation

The WLLST script can be invoked as follows on a Windows machine:

%WL_HOME%\common\bin\wlst.cmd  bounce-server.py

On a linux machine, wlst.sh should be used.

To invoke the script from a Windows BAT file:

@echo off

REM =====================================================

REM To bounce the Weblogic application using bounce-app.py

REM =====================================================

SET WL_HOME=C:\programs\Middleware\wlserver_10.3

SET scriptLocation=%~dp0%bounce-app.py

"%WL_HOME%\common\bin\wlst.cmd"   %scriptLocation%

Reference

• Weblogic Scripting Tool Command Reference: 12c