How to read property as List<String> from [] in springboot - spring

Question

Sometime i see somebody define like this in property file:
spring.autoconfigure.exclude[0]=com.vietnam.AAutoConfiguration
spring.autoconfigure.exclude[1]=com.vietnam.BAutoConfiguration
just question: how to define a property in Spring bean to collect this config as list?
in other place they said to use like this:
in propery:
spring.autoconfigure.exclude=com.vietnam.AAutoConfiguration,com.vietnam.BAutoConfiguration
in spring bean
#Value("#{'${spring.autoconfigure.exclude}'.split(',')}"
But i dont like this way in case the value is long. one config per line would be easier to read and mantain
Thanks

Answer 1

You can read multiple strings like below
in application.properties
app.names=vipul,uncle,bob
in you component class
#Value("${app.names}")
private List<String> names;

Answer 2

i found the way, use #Value will not support case i want.
We need to use #ConfigurationProperties then Spring will collect property as list
#ConfigurationProperties(prefix = "spring.autoconfigure")
public class SpringConfig {
#Setter //lombok
private List<String> exclude;
}
Config will simple like:
spring.autoconfigure.exclude[0]=com.vietnam.AAutoConfiguration
spring.autoconfigure.exclude[1]=com.vietnam.BAutoConfiguration

Answer 3

Lists may also be like this
app.names={'Baeldung','dot','com'}
app.names2={\
'One long text example',\
'Another long text example'\
}
#Value("#{${app.names}}")
private List<String> appNames;
Source https://www.baeldung.com/spring-inject-arrays-lists
Map example:
valuesMap={key1: '1', key2: '2', key3: '3'}
#Value("#{${valuesMap}}")
private Map<String, Integer> valuesMap;
Source https://www.baeldung.com/spring-value-annotation