Spring #Autowired now work with #Component class - spring

Question

In my JavaFX stand alone application, it will get null value when I #Autowired some Service class to JavaFX Controller (with #Component annotation). My code is as below and some one can please help me. Thanks a lot.
Dao Class
package com.core.repository;
public interface DeviceDao extends PagingAndSortingRepository<Device, Integer>, JpaSpecificationExecutor<Device> {
Device findById(Integer id);
Device findByName(String name);
List<Device> findAll();
}
Service class
package com.core.service.impl;
#Service("deviceService")
public class DeviceServiceImpl implements DeviceService {
#Autowired
private DeviceDao deviceDao;
public List<Device> selectAll() {
return deviceDao.findAll();
}
}
JavaFX Controller with #Component annotation
package com.stportal.ui.contoller;
#Component
public class HomeController implements Initializable {
#Autowired
private DeviceService deviceService;
#Override
public void initialize(URL url, ResourceBundle rb) {
// This condition will not execute due to service was null
if(deviceService != null) {
System.out.println("Not Null");
}
}
}
application-context.xml
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:beans="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:jpa="http://www.springframework.org/schema/data/jpa"
xsi:schemaLocation="
http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.0.xsd
http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.0.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd
http://www.springframework.org/schema/jdbc http://www.springframework.org/schema/jdbc/spring-jdbc-4.0.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.0.xsd
http://www.springframework.org/schema/data/jpa http://www.springframework.org/schema/data/jpa/spring-jpa-1.3.xsd
">
<context:component-scan base-package="com" />
<context:annotation-config/>
<bean id="entityManagerFactory"
class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean">
<property name="dataSource" ref="dataSource" />
<property name="jpaVendorAdapter" ref="hibernateJpaVendorAdapter" />
<property name="packagesToScan" value="com.core.domain" />
<property name="jpaProperties">
<props>
<prop key="hibernate.ejb.naming_strategy">org.hibernate.cfg.ImprovedNamingStrategy</prop>
<!--dialect for MySQL Server-->
<prop key="hibernate.dialect">org.hibernate.dialect.MySQLDialect</prop>
<prop key="hibernate.hbm2ddl.auto">update</prop>
<!--<prop key="hibernate.hbm2ddl.auto">create</prop>-->
<prop key="hibernate.show_sql">false</prop>
<prop key="hibernate.format_sql">false</prop>
<prop key="hibernate.use_sql_comments">false</prop>
</props>
</property>
</bean>
<bean id="hibernateJpaVendorAdapter"
class="org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter">
</bean>
<jpa:repositories base-package="com"
transaction-manager-ref="transactionManager"
entity-manager-factory-ref="entityManagerFactory" />
<bean id="transactionManager" class="org.springframework.orm.jpa.JpaTransactionManager">
<property name="entityManagerFactory" ref="entityManagerFactory" />
</bean>
<tx:annotation-driven transaction-manager="transactionManager"
proxy-target-class="true" />
<context:property-placeholder
ignore-resource-not-found="true" location="classpath*:/project.properties" />
<!-- DataSource Related Configurations -->
<beans:bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource" destroy-method="close">
<!--configuration pool via c3p0-->
<beans:property name="driverClass" value="${jdbc.driver}"/>
<beans:property name="jdbcUrl" value="${jdbc.url}"/>
<beans:property name="user" value="${jdbc.username}"/>
<beans:property name="password" value="${jdbc.password}"/>
<beans:property name="description" value="integration_ds"/>
<!--seconds -->
<beans:property name="acquireIncrement" value="${datasource.acquireIncrement}"/>
<beans:property name="idleConnectionTestPeriod" value="${datasource.idleConnectionTestPeriod}"/>
<!--configuration pool via c3p0-->
<beans:property name="maxPoolSize" value="${datasource.maxPoolSize}"/>
<beans:property name="maxStatements" value="${datasource.maxStatements}"/>
<beans:property name="minPoolSize" value="${datasource.minPoolSize}"/>
<beans:property name="initialPoolSize" value="${datasource.initialPoolSize}"/>
<beans:property name="maxIdleTime" value="${datasource.maxIdleTime}"/>
<beans:property name="acquireRetryAttempts" value="${datasource.acquireRetryAttempts}"/>
<beans:property name="acquireRetryDelay" value="${datasource.acquireRetryDelay}"/>
<beans:property name="breakAfterAcquireFailure" value="${datasource.breakAfterAcquireFailure}"/>
</beans:bean>
</beans>
Maven pom.xml file
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
<modelVersion>4.0.0</modelVersion>
<!-- Configure module specific parameters -->
<groupId>com</groupId>
<artifactId>IDEW</artifactId>
<version>1.0</version>
<packaging>jar</packaging>
<name>IDEW</name>
<url>http://maven.apache.org</url>
<!-- Configure dependency specific properties -->
<properties>
<java-version>1.7</java-version>
<org.springframework-version>4.0.2.RELEASE</org.springframework-version>
<spring.version>4.0.2.RELEASE</spring.version>
<hibernate.version>4.3.1.Final</hibernate.version>
<aspectj.version>1.7.3</aspectj.version>
<spring-data-jpa.version>1.4.2.RELEASE</spring-data-jpa.version>
<hibernate-validator.version>5.0.2.Final</hibernate-validator.version>
<slf4j.version>1.7.5</slf4j.version>
<logback.version>1.1.0</logback.version>
<commons-lang3.version>3.2.1</commons-lang3.version>
<commons-io.version>2.4</commons-io.version>
<junit.version>4.11</junit.version>
<ehcache.version>2.6.8</ehcache.version>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>
<!-- Configure all dependencies -->
<dependencies>
<!-- JavaFX -->
<dependency>
<groupId>com.oracle</groupId>
<artifactId>javafx</artifactId>
<version>2.2</version>
<scope>system</scope>
<systemPath>${java.home}/lib/jfxrt.jar</systemPath>
</dependency>
<!-- Spring -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>${org.springframework-version}</version>
</dependency>
<!-- CGLIB (required for Spring annotation configuration) -->
<dependency>
<groupId>cglib</groupId>
<artifactId>cglib</artifactId>
<version>2.2</version>
</dependency>
<dependency>
<groupId>org.aspectj</groupId>
<artifactId>aspectjrt</artifactId>
<version>${aspectj.version}</version>
</dependency>
<dependency>
<groupId>org.aspectj</groupId>
<artifactId>aspectjweaver</artifactId>
<version>${aspectj.version}</version>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-test</artifactId>
<version>${spring.version}</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-aop</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-beans</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-core</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-tx</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-api</artifactId>
<version>${slf4j.version}</version>
</dependency>
<dependency>
<groupId>ch.qos.logback</groupId>
<artifactId>logback-classic</artifactId>
<version>${logback.version}</version>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>log4j-over-slf4j</artifactId>
<version>${slf4j.version}</version>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>jcl-over-slf4j</artifactId>
<version>${slf4j.version}</version>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>jul-to-slf4j</artifactId>
<version>${slf4j.version}</version>
</dependency>
<dependency>
<groupId>org.springframework.data</groupId>
<artifactId>spring-data-jpa</artifactId>
<version>${spring-data-jpa.version}</version>
<exclusions>
<exclusion>
<groupId>junit</groupId>
<artifactId>junit-dep</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-test</artifactId>
<version>${spring.version}</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-core</artifactId>
<version>${hibernate.version}</version>
</dependency>
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-entitymanager</artifactId>
<version>${hibernate.version}</version>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>${junit.version}</version>
</dependency>
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-c3p0</artifactId>
<version>4.3.1.Final</version>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>5.1.29</version>
</dependency>
</dependencies>
<!-- Build specific configurations -->
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>2.3.2</version>
<configuration>
<source>${java-version}</source>
<target>${java-version}</target>
<fork>true</fork>
</configuration>
</plugin>
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>exec-maven-plugin</artifactId>
<configuration>
<classpathScope>compile</classpathScope>
<mainClass>com.stportal.app.MainApplication</mainClass>
</configuration>
</plugin>
</plugins>
</build>
</project>

Answer 1

I know little about Spring, but Koen Serneels wrote a nice blog on Spring and JavaFX integration. The magic key to getting the dependency injection in Spring to work together with JavaFX controllers is to set a controller factory on the FXMLLoader.
Here is a quick sketch of the relevant loading code using Java 8 syntax (I haven't tested it as I don't use Spring - if it doesn't work, please edit the post and correct it if you can).
import java.io.*;
import javafx.fxml.FXMLLoader;
import org.springframework.context.ApplicationContext;
import org.springframework.context.annotation.AnnotationConfigApplicationContext;
public class SpringFxmlLoader {
private static final ApplicationContext applicationContext =
new AnnotationConfigApplicationContext(
SpringApplicationConfig.class
);
public Object load(String url) throws IOException {
FXMLLoader loader = new FXMLLoader();
loader.setControllerFactory(
(clazz) -> applicationContext.getBean(clazz)
);
return loader.load(
SpringFxmlLoader.class.getResourceAsStream(url)
);
}
}

Answer 2

Even it was not #Autowired, it was fine when I get that service form the Application context.
#Component
public class HomeController implements Initializable {
private DeviceService deviceService;
#Override
public void initialize(URL url, ResourceBundle rb) {
deviceService = AppUtil.appContext.getBean(DeviceService.class);
// Now this condition is execute due to service was NOT null
if(deviceService != null) {
System.out.println("Not Null");
}
}
}