Spring Configuration Value Annotation Project

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This is MainProgram.java file having the source code to execute business logic.


 

    
package com.cv.spring.annotation;



import org.apache.log4j.Logger;

import org.springframework.context.annotation.AnnotationConfigApplicationContext;



import com.cv.spring.annotation.model.Entitlement;

import com.cv.spring.annotation.util.AppConfig;



/**

 * @author Chandra Vardhan

 */

public class MainProgram {

  

  private final static Logger LOGGER = Logger.getLogger(MainProgram.class);



  public static void main(String[] args) {

    

    AnnotationConfigApplicationContext ctx = new AnnotationConfigApplicationContext();

    ctx.register(AppConfig.class);

    ctx.refresh();

    Entitlement ent = (Entitlement) ctx.getBean("entitlement");

    LOGGER.info(ent.getName());

    LOGGER.info(ent.getTime());

  }

}


This is Entitlement.java file having the source code to execute business logic.


 

    
package com.cv.spring.annotation.model;



/**

 * @author Chandra Vardhan

 */

public class Entitlement {

  private String name;

  private int time;



  public String getName() {

    return name;

  }



  public void setName(String name) {

    this.name = name;

  }



  public int getTime() {

    return time;

  }



  public void setTime(int time) {

    this.time = time;

  }

}


This is AppConfig.java file having the source code to execute business logic.


 

    
package com.cv.spring.annotation.util;



import org.springframework.beans.factory.annotation.Value;

import org.springframework.context.annotation.Bean;

import org.springframework.context.annotation.Configuration;

import org.springframework.context.annotation.ImportResource;



import com.cv.spring.annotation.model.Entitlement;



/**

 * @author Chandra Vardhan

 */

@Configuration

@ImportResource("classpath:/app-conf.xml")

public class AppConfig {

  private @Value("#{entProp['entitlement.name']}") String entName;

  private @Value("#{entProp['entitlement.time']}") int entTime;



  @Bean(name = "entitlement")

  public Entitlement entitlement() {

    Entitlement ent = new Entitlement();

    ent.setName(entName);

    ent.setTime(entTime);

    return ent;

  }



}




This is pom.xml file having the entries of dependency jars and information to build the application .


	
<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/xsd/maven-4.0.0.xsd">.0" encoding="UTF-8"?>

	<modelVersion>4.0.0</modelVersion>
	<groupId>com.cv.spring.annotation</groupId>
	<artifactId>SpringConfigurationValueAnnotation</artifactId>
	<name>SpringConfigurationValueAnnotation</name>
	<packaging>jar</packaging>
	<version>1.0</version>
	<properties>
		<java-version>1.8</java-version>
		<log4j-version>1.2.16</log4j-version>
		<org.springframework-version>4.1.6.RELEASE</org.springframework-version>
	</properties>
	<dependencies>
		
		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-context</artifactId>
			<version>${org.springframework-version}</version>
		</dependency>

		
		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-aop</artifactId>
			<version>${org.springframework-version}</version>
		</dependency>

		
		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-webmvc</artifactId>
			<version>${org.springframework-version}</version>
		</dependency>

		
		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-web</artifactId>
			<version>${org.springframework-version}</version>
		</dependency>
		
		<dependency>
			<groupId>log4j</groupId>
			<artifactId>log4j</artifactId>
			<version>${log4j.version}</version>
		</dependency>
	</dependencies>

	<build>
		<plugins>
			<plugin>
				<groupId>org.apache.maven.plugins</groupId>
				<artifactId>maven-compiler-plugin</artifactId>
				<version>3.1</version>
				<configuration>
					<source>1.8</source>
					<target>1.8</target>
				</configuration>
			</plugin>
		</plugins>
	</build>

</project>


This is app-conf.xml file having the spring configuration properties.


 
<beans xmlns="http://www.springframework.org/schema/beans"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:util="http://www.springframework.org/schema/util"
	xsi:schemaLocation="
    http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
    http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-3.0.xsd">
	<util:properties id="entProp" location="classpath:/entitlement.cfg" />
</beans>



This is log4j.properties file having the entries for logging the information into the console/file.



#By default enabling Console appender
# Root logger option
log4j.rootLogger=INFO, stdout

# Redirect log messages to console
log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.Target=System.out
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
log4j.appender.stdout.layout.ConversionPattern=%-5p [%c]:%L -->> %m%n

# Redirect log messages to a log file
#log4j.appender.file=org.apache.log4j.RollingFileAppender
#log4j.appender.file.File=C:\servlet-application.log
#log4j.appender.file.MaxFileSize=5MB
#log4j.appender.file.MaxBackupIndex=10
#log4j.appender.file.layout=org.apache.log4j.PatternLayout
#log4j.appender.file.layout.ConversionPattern=%d{yyyy-MM-dd HH:mm:ss} %-5p %c{1}:%L - %m%n


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