CODEWITHSUNDEEP
javaspring
Bilal Shah
Bilal Shah

Reputation: 1265

Can we get properties using Expression from Properties File

Can we get a property from properties file using some expression. e.g

If I have properties in file like this

user/a/b=active
user/a/c=active
user/a/d=active

Now How can I get all properties which are active. Also Can I get all active using user/a/* or something like that

Upvotes: 1

Views: 275

Answers (1)

StanislavL
StanislavL

Reputation: 57381

The java.util.Properties class has stringPropertyNames() method

you can use the method to iterate all the names and check name and value

Properties prop = new Properties();

// add some properties
prop.put("user/a/b", "active");
prop.put("user/a/c", "active");
prop.put("user/a/d", "active");

// save the Property names in the set
Set<String> set = prop.stringPropertyNames();
for (String name: set) {
    if (name.startsWIth("user/a/")) {
        //check value and do something
    }
}

Upvotes: 1

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