Spring @Value – Import a list from properties file
By mkyong | | Viewed : 45,365 times +405 pv/w
In this tutorial, we will show you how to import a “List” from a properties file, via Spring EL @Value
Tested with :
- Spring 4.0.6
- JDK 1.7
Spring @Value and List
In Spring @Value, you can use the split() method to inject the ‘List” in one line.
server.name=hydra,zeus
server.id=100,102,103package com.mkyong.analyzer.test;
import java.util.List;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.PropertySource;
import org.springframework.context.support.PropertySourcesPlaceholderConfigurer;
@Configuration
@PropertySource(value="classpath:config.properties")
public class AppConfigTest {
@Value("#{'${server.name}'.split(',')}")
private List<String> servers;
@Value("#{'${server.id}'.split(',')}")
private List<Integer> serverId;
//To resolve ${} in @Value
@Bean
public static PropertySourcesPlaceholderConfigurer propertyConfigInDev() {
return new PropertySourcesPlaceholderConfigurer();
}
}Output
System.out.println(servers.size());
for(String temp : servers){
System.out.println(temp);
}
System.out.println(serverId.size());
for(Integer temp : serverId){
System.out.println(temp);
}2
hydra
zeus
3
100
102
103References
Tags : list properties file springShare this article on
TwitterFacebook Google+
sponsored sponsored
