Could not load properties error in spring PropertyPlaceHolderConfigurer - spring

Question

I have the following code, using a PropertyPlaceHolderConfigurer:
public static void main(String[] args) {
Scanner sc=null;
CustomerDTO dto=null;
//create IOC Container
ApplicationContext ctx=new FileSystemXmlApplicationContext("src/main/java/com/nt/cfgs/applicationContext.xml");
//get PropertyPlaaceHolderConfigurer OBJ
BeanFactoryPostProcessor bfpp=ctx.getBean("ppc",PropertyPlaceholderConfigurer.class);
bfpp.postProcessBeanFactory((ConfigurableListableBeanFactory)ctx);
sc=new Scanner(System.in);
System.out.println("Enter Customer NO: ");
int cno=sc.nextInt();
System.out.println("Enter Customer Name: ");
String cname=sc.next();
System.out.println("Enter Principal Amount:: ");
float pamt=sc.nextFloat();
System.out.println("Enter Rate of Interest: ");
float rate=sc.nextFloat();
System.out.println("Enter Time/Period: ");
float time=sc.nextFloat();
//set values to dto
dto=new CustomerDTO();
dto.setCno(cno);
dto.setCname(cname);
dto.setPamt(pamt);
dto.setRate(rate);
dto.setTime(time);
//getBean
LoanService service=ctx.getBean("service",LoanService.class);
System.out.println(service.calcIntrAmt(dto));
}
The code above gives me the following error:
Aug 04, 2018 8:16:08 PM org.springframework.context.support.AbstractApplicationContext prepareRefresh
INFO: Refreshing org.springframework.context.support.FileSystemXmlApplicationContext#621be5d1: startup date [Sat Aug 04 20:16:08 IST 2018]; root of context hierarchy
Aug 04, 2018 8:16:08 PM org.springframework.beans.factory.xml.XmlBeanDefinitionReader loadBeanDefinitions
INFO: Loading XML bean definitions from file [D:\NTSP710\IOC-Beans28ApplicationContextWithPropertyFileConfigurator\src\main\java\com\nt\cfgs\applicationContext.xml]
Aug 04, 2018 8:16:08 PM org.springframework.context.support.AbstractApplicationContext refresh
WARNING: Exception encountered during context initialization - cancelling refresh attempt: org.springframework.beans.factory.BeanInitializationException: Could not load properties; nested exception is java.io.FileNotFoundException: src\main\java\com\nt\commons\DBDetails.properties
Exception in thread "main" org.springframework.beans.factory.BeanInitializationException: Could not load properties; nested exception is java.io.FileNotFoundException: src\main\java\com\nt\commons\DBDetails.properties
at org.springframework.beans.factory.config.PropertyResourceConfigurer.postProcessBeanFactory(PropertyResourceConfigurer.java:89)
at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanFactoryPostProcessors(PostProcessorRegistrationDelegate.java:284)
at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanFactoryPostProcessors(PostProcessorRegistrationDelegate.java:164)
at org.springframework.context.support.AbstractApplicationContext.invokeBeanFactoryPostProcessors(AbstractApplicationContext.java:693)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:531)
at org.springframework.context.support.FileSystemXmlApplicationContext.<init>(FileSystemXmlApplicationContext.java:142)
at org.springframework.context.support.FileSystemXmlApplicationContext.<init>(FileSystemXmlApplicationContext.java:85)
at com.nt.test.ClientApp.main(ClientApp.java:21)
Caused by: java.io.FileNotFoundException: src\main\java\com\nt\commons\DBDetails.properties
at org.springframework.core.io.FileSystemResource.getInputStream(FileSystemResource.java:129)
at org.springframework.core.io.support.EncodedResource.getInputStream(EncodedResource.java:159)
at org.springframework.core.io.support.PropertiesLoaderUtils.fillProperties(PropertiesLoaderUtils.java:99)
at org.springframework.core.io.support.PropertiesLoaderSupport.loadProperties(PropertiesLoaderSupport.java:181)
at org.springframework.core.io.support.PropertiesLoaderSupport.mergeProperties(PropertiesLoaderSupport.java:162)
at org.springframework.beans.factory.config.PropertyResourceConfigurer.postProcessBeanFactory(PropertyResourceConfigurer.java:80)
... 7 more
How can I fix this problem?

Answer 1

You should put your application context in src/main/resources/com/nt/cfgs/applicationContext.xml, then try reading it with just "com/nt/cfgs/applicationContext.xml" ... Your class does not get executed from the top of your project, but rather from within the target folder - so it cannot see the path you indicate relative to "target".
Or better yet, use a classpath context reader and the path "classpath:com/nt/cfgs/applicationContext.xml" ...

Answer 2

The exception is straightforward. It says
Exception in thread "main" org.springframework.beans.factory.BeanInitializationException: Could not load properties; nested exception is java.io.FileNotFoundException: src\main\java\com\nt\commons\DBDetails.properties
This means that it's not able to find the DBDetails.properties file in the path given. You need to provide the correct path of the same either in applicationContext.xml or #PropertySource, wherever you have defined it.

Answer 3

I faced the same issue for a .xml file, It wasted lot of my time, eventually I followed these steps to fix it:
Delete your project (or multiple related projects) and its sub-project if any from workspace (don't delete it from your computer disk).
Import the project again, Mine was from git so I did "Import from GIT"
Once import is complete, clean install from pom.xml
Then try running the main class.
There could be a better solution but this fixed my issue,
Might help others too.