how to replace placeholders with actual values with powershell

Asked Feb 02 '20 at 21:40

Active Feb 02 '20 at 22:08

Viewed 34 times

I just introduced to jdb and my mentor gave me next assignment: I have one file with actual values src/main/resources/confing.properties and placeholders like ${db1_password} in different classes. How to replace placeholdes with actual values from properties file via PowerShell script?

db.host = jdbc:postgresql://localhost/school_db
db.login = tester
db.password = test
db.tables = src\\main\\resources\\tables_creation.sql
db.groups = 10
db.courses = 10
db.minimumStudentsInGroup = 10
db.maximumStudentsInGroup = 30
db.students = 200
db.maximumCoursesForStudent = 3

edited Feb 02 '20 at 22:08

Daniele

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asked Feb 02 '20 at 21:40

Khilarian

you should add a powershell tag – CausingUnderflowsEverywhere Feb 02 '20 at 22:01
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show an example of a placeholder please. and what is the purpose of the powershell script? – CausingUnderflowsEverywhere Feb 02 '20 at 22:02
for now I use Properties class and use props.getProperty("db.tables") to get values from properties file, but it is not really safety to do it in this way. – Khilarian Feb 02 '20 at 22:22
Yes, but how is powershell relevant here, is your launch script in powershell? Then you can pass a variable to java using -Dvariablename=value on the commandline. Then use System.getProperty("variablename") – CausingUnderflowsEverywhere Feb 02 '20 at 22:27

how to replace placeholders with actual values with powershell

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