initial work on properties

spring-all/src/main/java/org/baeldung/core/ComponentUsingProperties.java

@@ -1,12 +1,30 @@
 package org.baeldung.core;
 
+import org.springframework.beans.factory.InitializingBean;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.core.env.Environment;
 import org.springframework.stereotype.Component;
 
 @Component
-public class ComponentUsingProperties {
+public class ComponentUsingProperties implements InitializingBean {
+
+    @Autowired
+    private Environment env;
+
+    @Value("${key.something}")
+    private String injectedProperty;
 
     public ComponentUsingProperties() {
         super();
     }
 
+    //
+
+    @Override
+    public void afterPropertiesSet() throws Exception {
+        System.out.println("via @Value: " + injectedProperty);
+        System.out.println("via Environment: " + env.getProperty("key.something"));
+    }
+
 }

spring-all/src/main/java/org/baeldung/spring/config/PersistenceConfig.java

@@ -7,7 +7,6 @@ import javax.sql.DataSource;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.ComponentScan;
-import org.springframework.context.annotation.Configuration;
 import org.springframework.context.annotation.PropertySource;
 import org.springframework.core.env.Environment;
 import org.springframework.dao.annotation.PersistenceExceptionTranslationPostProcessor;
@@ -18,10 +17,10 @@ import org.springframework.transaction.annotation.EnableTransactionManagement;
 
 import com.google.common.base.Preconditions;
 
-@Configuration
+// @Configuration
 @EnableTransactionManagement
 @PropertySource({ "classpath:persistence-mysql.properties" })
-@ComponentScan({ "org.baeldung.spring.persistence.dao", "org.baeldung.spring.persistence.service" })
+@ComponentScan({ "org.baeldung.persistence" })
 public class PersistenceConfig {
 
     @Autowired

spring-all/src/main/resources/configForProperties.xml

@@ -4,6 +4,6 @@
       http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.2.xsd
       http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.2.xsd">
 
-<!--     <bean id="beanA" abstract="true" class="org.baeldung.web.BeanA" /> -->
+    <context:property-placeholder location="classpath:foo.properties" />
 
 </beans>

spring-all/src/main/resources/foo.properties

@@ -0,0 +1 @@
+key.something=val

spring-all/src/main/resources/persistence-mysql.properties

@@ -1,10 +0,0 @@
-# jdbc.X
-jdbc.driverClassName=com.mysql.jdbc.Driver
-jdbc.url=jdbc:mysql://localhost:3306/spring_hibernate4_01?createDatabaseIfNotExist=true
-jdbc.user=tutorialuser
-jdbc.pass=tutorialmy5ql
-
-# hibernate.X
-hibernate.dialect=org.hibernate.dialect.MySQL5Dialect
-hibernate.show_sql=false
-hibernate.hbm2ddl.auto=create-drop