Injecting values from properties file

Author: DESKTOP-BL7US23\architbiet

src/com/luv2code/springdemo/SportConfig.java

@@ -3,9 +3,11 @@
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.ComponentScan;
 import org.springframework.context.annotation.Configuration;
+import org.springframework.context.annotation.PropertySource;
 
 @Configuration
 @ComponentScan("com.luv2code.springdemo")
+@PropertySource("classpath:sport.properties")
 public class SportConfig {
 
  @Bean

src/com/luv2code/springdemo/SwimCoach.java

@@ -1,9 +1,17 @@
 package com.luv2code.springdemo;
 
+import org.springframework.beans.factory.annotation.Value;
+
 public class SwimCoach implements Coach {
 
  private FortuneService fortuneService;
 
+ @Value("${foo.email}")
+ private String email;
+
+ @Value("${foo.team}")
+ private String team;
+
  public SwimCoach(FortuneService fortuneService) {
  this.fortuneService = fortuneService;
  }
@@ -17,4 +25,12 @@ public String getDailyWorkout() {
  public String getDailyFortune() {
  return fortuneService.getFortune();
  }
+
+ public String getEmail() {
+ return email;
+ }
+
+ public String getTeam() {
+ return team;
+ }
 }

src/com/luv2code/springdemo/SwimConfigDemoApp.java

@@ -10,11 +10,14 @@ public static void main(String[] args) {
  AnnotationConfigApplicationContext context = new AnnotationConfigApplicationContext(SportConfig.class);
 
 // Retrieve the bean from Spring container
- Coach coach = context.getBean("swimCoach", Coach.class);
+ // Using SwimCoach instead of Coach just to use getEmail, getTeam
+ SwimCoach coach = context.getBean("swimCoach", SwimCoach.class);
 
 // Call methods on the bean
  System.out.println(coach.getDailyWorkout());
  System.out.println(coach.getDailyFortune());
+ System.out.println(coach.getEmail());
+ System.out.println(coach.getTeam());
 
 // Close the context
  context.close();

src/notes.txt

@@ -30,6 +30,8 @@ Spring Annotations
  It eliminates xml config file altogether.
  -> @ComponentScan - Tells Spring to look for all beans inside the package
  @ComponentScan("com.gemalto.archit")
+ -> @PropertySource- To inject values from properties file @PropertySource("classpath:sport.properties")
+ -> @Value - To inject values from properties file @Value("${foo.email}")
  -> @Bean - To create bean inside the configuration class with @Configuration
  -> @Scope - Defines bean scope (Default:Singleton)
  -> @PostConstruct - Bean lifecycle

src/sport.properties

@@ -0,0 +1,2 @@
+foo.email=abc@gmail.com
+foo.team=myTeam