Unable to fetch data from properties file-CodePudding

In my current application I am having a properties file which has certain properties of student and I am writing a class with a main function to extract those properties and Iam using below code, but I am getting null values for all properties,I tried using getproperty() and it is working fine but I need to do this using @Value . Any solution?

@Configuration
@PropertySource("classpath:sample.properties")
public class Test
{
  @Value("${student.name}")
  private String name;

 public void test()
 {
  System.out.println("name " name);
 }
 public static void main(String args[])
 {
   Test t=new Test();
   t.test();
 }

I'm getting

name = null

CodePudding user response：

your test class,


@Configuration
public class Tester {
    @Value("${student.name}")
    private String name;
     
    public String getName(){
       return name;
    }
}

You should use application context provided by spring boot like this,


@SpringBootApplication
public class DemoApplication {

    public static void main(String[] args) {
        SpringApplication application = new SpringApplication(DemoApplication.class);
        ApplicationContext context = application.run(args);

        // you can get object of any class like this.
        Test testObj = context.getBean(Test.class);  
        System.out.println("Student Name : " testObj.getName());
    }
}

Hope it helps.