How to read external xml in spring boot 2.1.7 using external path as command line argument or config folder - spring

Question

Am working on a spring boot application having external configuration.Jar file run via command prompt using following command.
java -jar Service-1.0.jar --spring.config.additional-location=C:/Users/Administrator/Desktop/Springboot/
Need to pass external configuration path via command line argument,because they may varying.
Main class
#ImportResource(locations = {
"config/spring/service-config.xml",
"config/spring/datasource-config.xml"
})
public class ServiceMain {
public static void main(String[] args) {
ConfigurableApplicationContext applicationContext = new SpringApplicationBuilder(ServiceMain.class)
.build()
.run(args);
for (String name : applicationContext.getBeanDefinitionNames()) {
}
}
}
when i run this jar it showing the following error
EDIT 1
changed running command
java -jar Service-1.0.jar --spring.config.additional-location=C:/Users/Administrator/Desktop/Springboot/,--external.config=C:/Users/Administrator/Desktop/Springboot/
changed main class
#ImportResource(locations = {
"${external.config}/config/spring/service-config.xml",
"${external.config}/config/spring/datasource-config.xml"
})
public class ServiceMain {
public static void main(String[] args) {
ConfigurableApplicationContext applicationContext = new SpringApplicationBuilder(ServiceMain.class)
.build()
.run(args);
for (String name : applicationContext.getBeanDefinitionNames()) {
}
}
}
it showing exception
java.lang.IllegalArgumentException: Could not resolve placeholder 'external.config' in value "${external.config}/config/spring/service-config.xml"
at org.springframework.context.annotation.ConfigurationClassParser.parse(ConfigurationClassParser.java:181)
at org.springframework.context.annotation.ConfigurationClassPostProcessor.processConfigBeanDefinitions(ConfigurationClassPostProcessor.java:315)
at org.springframework.context.annotation.ConfigurationClassPostProcessor.postProcessBeanDefinitionRegistry(ConfigurationClassPostProcessor.java:232)
at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanDefinitionRegistryPostProcessors(PostProcessorRegistrationDelegate.java:275)
at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanFactoryPostProcessors(PostProcessorRegistrationDelegate.java:95)
at org.springframework.context.support.AbstractApplicationContext.invokeBeanFactoryPostProcessors(AbstractApplicationContext.java:705)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:531)
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:743)
at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:390)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:312)
at com.ge.hcit.xer.app.services.api.XERServiceMain.main(XERServiceMain.java:31)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.springframework.boot.loader.MainMethodRunner.run(MainMethodRunner.java:48)
at org.springframework.boot.loader.Launcher.launch(Launcher.java:87)
at org.springframework.boot.loader.Launcher.launch(Launcher.java:51)
at org.springframework.boot.loader.JarLauncher.main(JarLauncher.java:52)
Caused by: java.lang.IllegalArgumentException: Could not resolve placeholder 'external.config' in value "${external.config}/config/spring/service-config.xml"
at org.springframework.util.PropertyPlaceholderHelper.parseStringValue(PropertyPlaceholderHelper.java:178)
at org.springframework.util.PropertyPlaceholderHelper.replacePlaceholders(PropertyPlaceholderHelper.java:124)
at org.springframework.core.env.AbstractPropertyResolver.doResolvePlaceholders(AbstractPropertyResolver.java:237)
at org.springframework.core.env.AbstractPropertyResolver.resolveRequiredPlaceholders(AbstractPropertyResolver.java:211)
at org.springframework.core.env.AbstractEnvironment.resolveRequiredPlaceholders(AbstractEnvironment.java:575)
at org.springframework.context.annotation.ConfigurationClassParser.doProcessConfigurationClass(ConfigurationClassParser.java:311)
at org.springframework.context.annotation.ConfigurationClassParser.processConfigurationClass(ConfigurationClassParser.java:242)
at org.springframework.context.annotation.ConfigurationClassParser.parse(ConfigurationClassParser.java:199)
at org.springframework.context.annotation.ConfigurationClassParser.parse(ConfigurationClassParser.java:167)
... 18 common frames omitted
how the importresource taking the external configuration
EDIT 2
Am placing configuration in config folder.external application.properties are loading in current project,but its not loading in dependency project.
#Configuration
public class ConfigurationFactory
{
public static final String REQ_CONF = "config/Configuration.xml";
public static final String FILTER_XML_CONF = "config/DocFilter.xml";
}
Is the spring load external application.properties/yml files only?

Answer 1

Use the file: prefix for system resource file:
#ImportResource(locations = {
"file:${external.config.location}/config/spring/service-config.xml",
"file:${external.config.location}/config/spring/datasource-config.xml"
})
Run with --external.config.location=xxx:
java -jar Service-1.0.jar --external.config.location=C:/Users/Administrator/Desktop/Springboot

Answer 2

Nothing wrong with your approach.
Instead of command line, add that as variable in application.properties file
please separate place holder and remaining path,
like ("${external.config}"+"/spring/service-config.xml")