From 88586cc09f5120e0b0fbfadc8453b3708e1082ca Mon Sep 17 00:00:00 2001
From: codehunter34 <31874661+codehunter34@users.noreply.github.com>
Date: Sat, 6 Jul 2019 12:41:48 -0400
Subject: [PATCH] BAEL-2850: Difference between <context:annotation-config> vs
 (#7249)

<context:component-scan>
---
 .../baeldung/components/AccountService.java   |  8 +++++++
 .../com/baeldung/components/UserService.java  | 16 +++++++++++++
 spring-5/src/main/resources/beans.xml         | 15 ++++++++++++
 ...SpringXMLConfigurationIntegrationTest.java | 23 +++++++++++++++++++
 4 files changed, 62 insertions(+)
 create mode 100644 spring-5/src/main/java/com/baeldung/components/AccountService.java
 create mode 100644 spring-5/src/main/java/com/baeldung/components/UserService.java
 create mode 100644 spring-5/src/main/resources/beans.xml
 create mode 100644 spring-5/src/test/java/com/baeldung/SpringXMLConfigurationIntegrationTest.java

diff --git a/spring-5/src/main/java/com/baeldung/components/AccountService.java b/spring-5/src/main/java/com/baeldung/components/AccountService.java
new file mode 100644
index 0000000000..c2f09c735e
--- /dev/null
+++ b/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 {
+
+}
diff --git a/spring-5/src/main/java/com/baeldung/components/UserService.java b/spring-5/src/main/java/com/baeldung/components/UserService.java
new file mode 100644
index 0000000000..80e5e0c632
--- /dev/null
+++ b/spring-5/src/main/java/com/baeldung/components/UserService.java
@@ -0,0 +1,16 @@
+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;
+    }
+
+}
diff --git a/spring-5/src/main/resources/beans.xml b/spring-5/src/main/resources/beans.xml
new file mode 100644
index 0000000000..004745b817
--- /dev/null
+++ b/spring-5/src/main/resources/beans.xml
@@ -0,0 +1,15 @@
+<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>
\ No newline at end of file
diff --git a/spring-5/src/test/java/com/baeldung/SpringXMLConfigurationIntegrationTest.java b/spring-5/src/test/java/com/baeldung/SpringXMLConfigurationIntegrationTest.java
new file mode 100644
index 0000000000..4ecad9c43e
--- /dev/null
+++ b/spring-5/src/test/java/com/baeldung/SpringXMLConfigurationIntegrationTest.java
@@ -0,0 +1,23 @@
+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());
+    }
+
+}