BAEL-4069: Add example of using @Value with constructor/setter (#9318)

spring-boot-modules/spring-boot-properties/src/main/java/com/baeldung/value/CollectionProvider.java

@@ -0,0 +1,27 @@
+package com.baeldung.value;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.context.annotation.PropertySource;
+import org.springframework.stereotype.Component;
+
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.Collections;
+import java.util.List;
+
+@Component
+@PropertySource("classpath:values.properties")
+public class CollectionProvider {
+
+    private final List<String> values = new ArrayList<>();
+
+    public Collection<String> getValues() {
+        return Collections.unmodifiableCollection(values);
+    }
+
+    @Autowired
+    public void setValues(@Value("#{'${listOfValues}'.split(',')}") List<String> values) {
+        this.values.addAll(values);
+    }
+}

spring-boot-modules/spring-boot-properties/src/main/java/com/baeldung/value/PriorityProvider.java

@@ -0,0 +1,22 @@
+package com.baeldung.value;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.context.annotation.PropertySource;
+import org.springframework.stereotype.Component;
+
+@Component
+@PropertySource("classpath:values.properties")
+public class PriorityProvider {
+
+    private final String priority;
+
+    @Autowired
+    public PriorityProvider(@Value("${priority:normal}") String priority) {
+        this.priority = priority;
+    }
+
+    public String getPriority() {
+        return priority;
+    }
+}