Spring4 Basic Autowire Project

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

package com.cv.spring.autowire; import org.apache.log4j.Logger; public class Instrumentalist implements Performer {      private final static Logger LOGGER = Logger.getLogger(Instrumentalist.class);      private String song;      private String prefix;      private String suffix;      private String message;         public Instrumentalist() {   }   public String getSong() {     return song;   }   public void setSong(String song) {     this.song = song;   }   public String getPrefix() {     return prefix;   }   public void setPrefix(String prefix) {     this.prefix = prefix;   }   public String getSuffix() {     return suffix;   }   public void setSuffix(String suffix) {     this.suffix = suffix;   }   public String getMessage() {     return message;   }   public void setMessage(String message) {     this.message = message;   }   public void perform() {     LOGGER.info("Instrument is");     LOGGER.info("Prefix is : : " + prefix);     LOGGER.info("Suffix is : : " + suffix);     LOGGER.info("Message is : : " + message);     LOGGER.info("Song is : : " + song);   } }

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

package com.cv.spring.autowire; public interface Performer {      public void perform(); }

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

package com.cv.spring.autowire; import org.springframework.context.ConfigurableApplicationContext; import org.springframework.context.support.ClassPathXmlApplicationContext; /**  * @author Chandra Vardhan  *  */ public class Test {   /**    *     */   public Test() {   }   /**    * @param args    */   public static void main(String[] args) {     ConfigurableApplicationContext applicationContext = new ClassPathXmlApplicationContext(         "kenny.xml");     Performer performer = (Performer) applicationContext.getBean("kenny");     performer.perform();          applicationContext.close();   } }

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>Spring4BasicAutowire</artifactId> <name>Spring4BasicAutowire</name> <packaging>war</packaging> <version>1.0</version> <properties> <java-version>1.8</java-version> <log4j-version>1.2.16</log4j-version> <org.springframework-version>4.2.0.RELEASE</org.springframework-version> <jackson.version>2.5.3</jackson.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>org.springframework</groupId> <artifactId>spring-tx</artifactId> <version>${org.springframework-version}</version> </dependency> <dependency> <groupId>com.fasterxml.jackson.core</groupId> <artifactId>jackson-databind</artifactId> <version>${jackson.version}</version> </dependency> <dependency> <groupId>log4j</groupId> <artifactId>log4j</artifactId> <version>${log4j.version}</version> </dependency> <dependency> <groupId>javax.inject</groupId> <artifactId>javax.inject</artifactId> <version>1</version> </dependency> </dependencies> <build> <pluginManagement> <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> <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-war-plugin</artifactId> <version>2.4</version> <configuration> <warSourceDirectory>src/main/webapp</warSourceDirectory> <warName>Spring4BasicAutowire</warName> <failOnMissingWebXml>false</failOnMissingWebXml> </configuration> </plugin> </plugins> </pluginManagement> <finalName>Spring4BasicAutowire</finalName> </build> </project>

This is kenny.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:p="http://www.springframework.org/schema/p" xmlns:context="http://www.springframework.org/schema/context" xmlns:mvc="http://www.springframework.org/schema/mvc" xmlns:util="http://www.springframework.org/schema/util" xsi:schemaLocation=" http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-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/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-4.0.xsd"> <bean class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer"> <property name="location"> <value>application.properties</value> </property> </bean> <bean id="kenny" class="com.cv.spring.autowire.Instrumentalist"> <property name="prefix" value="${prefix}" /> <property name="suffix" value="${suffix}" /> <property name="message" value="${message}" /> <property name="song" value="${song}" /> </bean> </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