BAEL-2850: Difference between <context:annotation-config> vs (#7249)

<context:component-scan>

spring-5/src/main/java/com/baeldung/components/AccountService.java

@@ -0,0 +1,8 @@
+package com.baeldung.components;
+
+import org.springframework.stereotype.Component;
+
+@Component
+public class AccountService {
+
+}

spring-5/src/main/java/com/baeldung/components/UserService.java

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+package com.baeldung.components;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Component;
+
+@Component
+public class UserService {
+
+    @Autowired
+    private AccountService accountService;
+
+    public AccountService getAccountService() {
+        return accountService;
+    }
+
+}

spring-5/src/main/resources/beans.xml

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+<beans xmlns="http://www.springframework.org/schema/beans"
+    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:context="http://www.springframework.org/schema/context"
+    xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd">
+
+    <context:annotation-config />
+
+    <context:component-scan base-package="com.baeldung.components" />
+
+    <bean id="accountService" class="com.baeldung.components.AccountService"></bean>
+
+    <bean id="userService" class="com.baeldung.components.UserService">
+        <!-- If we have <context:annotation-config/> on top, then we don't need to set the properties(dependencies) in XML. -->
+        <!-- <property name="accountService" ref="accountService"></property> -->
+    </bean>
+</beans>

spring-5/src/test/java/com/baeldung/SpringXMLConfigurationIntegrationTest.java

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+package com.baeldung;
+
+import org.junit.Assert;
+import org.junit.Test;
+import org.springframework.context.ApplicationContext;
+import org.springframework.context.support.ClassPathXmlApplicationContext;
+
+import com.baeldung.components.AccountService;
+import com.baeldung.components.UserService;
+
+public class SpringXMLConfigurationIntegrationTest {
+
+    @Test
+    public void givenContextAnnotationConfigOrContextComponentScan_whenDependenciesAndBeansAnnotated_thenNoXMLNeeded() {
+        ApplicationContext context = new ClassPathXmlApplicationContext("classpath:beans.xml");
+        UserService userService = context.getBean(UserService.class);
+        AccountService accountService = context.getBean(AccountService.class);
+        Assert.assertNotNull(userService);
+        Assert.assertNotNull(accountService);
+        Assert.assertNotNull(userService.getAccountService());
+    }
+
+}