Quartz Spring Boot：环境属性

Question

I've this code in order to populate my properties:

@Bean
public Properties quartzProperties() throws IOException {
    PropertiesFactoryBean propertiesFactoryBean = new PropertiesFactoryBean();
    propertiesFactoryBean.setLocation(new ClassPathResource("/quartz.properties"));
    propertiesFactoryBean.afterPropertiesSet();
    return propertiesFactoryBean.getObject();
}

quartz.properties is like:

org.quartz.jobStore.host = localhost

The problem is that according to current environtment (loc, dev...), I need this property is one or another.

We are looking for a way to parameterize this value. Something like:

org.quartz.jobStore.host = ${jobHost}

where, jobHost would contain the environment related host.

I hope I've explained so well.

Any ideas?

EDIT

I've tried setting my jobHost variable on commandline:

mvn clean package spring-boot:run -Dspring-boot.run.arguments=--spring.config.additional-location=scheduler-props.properties,--jobHost=localhost

but it gets me:

java.net.UnknownHostException: ${jobHost}

it seems jobHost is not resolved.

Answer 1

The good way of achieving this is by externalizing configuration. Please refer to https://docs.spring.io/spring-boot/docs/current/reference/html/boot-features-external-config.html for details.

Answer 2

Not sure at all I got your problem but if you want to programmatically resolve the hostname then

InetAddress.getLocalHost().getHostAddress()

is the way to go

Otherwise you can programmatically retrieve a "System property" ( System.getProperty(String name) ) passed to your program using -Dpropertyname=value or an "Environment variable" ( System.getenv(String name) ).

@Bean
public Properties quartzProperties() throws IOException {
  PropertiesFactoryBean propertiesFactoryBean = new PropertiesFactoryBean();
  propertiesFactoryBean.setLocation(new ClassPathResource("/quartz.properties"));
  propertiesFactoryBean.afterPropertiesSet();
  final Properties prop = propertiesFactoryBean.getObject();
  prop.setProperty("org.quartz.jobStore.host", System.getProperty("jobHost");
  return prop
}