Spring Configuration 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.ApplicationContext; import org.springframework.context.annotation.AnnotationConfigApplicationContext; import com.cv.spring.annotation.model.HelloWorld; import com.cv.spring.annotation.util.HelloWorldConfig; /**  * @author Chandra Vardhan  */ public class MainProgram {   private final static Logger LOGGER = Logger.getLogger(MainProgram.class);   public static void main(String[] args) {     ApplicationContext ctx = new AnnotationConfigApplicationContext(         HelloWorldConfig.class);     HelloWorld helloWorld = (HelloWorld) ctx.getBean("helloWorld");     LOGGER.info(helloWorld.getMessage());     LOGGER.info(helloWorld.getEmployeeBean().getName());   } }

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

package com.cv.spring.annotation.model; /**  * @author Chandra Vardhan  */ public class EmployeeBean {   private String name;   public EmployeeBean() {   }   public EmployeeBean(String name) {     this.name = name;   }   public String getName() {     return name;   }   public void setName(String name) {     this.name = name;   } }

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

package com.cv.spring.annotation.model; import org.springframework.context.annotation.Bean; /**  * @author Chandra Vardhan  */ public class HelloWorld {   private String message;   private EmployeeBean employeeBean;   public HelloWorld(EmployeeBean employeeBean) {     this.employeeBean = employeeBean;   }   @Bean   public EmployeeBean EmployeeBean() {     return employeeBean;   }   public EmployeeBean getEmployeeBean() {     return employeeBean;   }   public void setEmployeeBean(EmployeeBean employeeBean) {     this.employeeBean = employeeBean;   }   public void setMessage(String message) {     this.message = message;   }   public String getMessage() {     return message;   } }

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

package com.cv.spring.annotation.util; import org.springframework.context.annotation.Bean; import org.springframework.context.annotation.Configuration; import com.cv.spring.annotation.model.EmployeeBean; import com.cv.spring.annotation.model.HelloWorld; /**  * @author Chandra Vardhan  */ @Configuration public class HelloWorldConfig {   @Bean   public HelloWorld helloWorld() {     HelloWorld hw = new HelloWorld(getEmployeeBean("Chandra"));     hw.setMessage("Hello world...");     return hw;   }      public EmployeeBean getEmployeeBean(String name) {         return new EmployeeBean(name);   } }

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>SpringConfigurationAnnotation</artifactId> <name>SpringConfigurationAnnotation</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 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