Spring Component Annotation3 Project

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


 

    
package com.cv.spring.annotation.component;

import org.apache.log4j.Logger;
import org.springframework.context.ConfigurableApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;

/**
 @author Chandra Vardhan
 */
public class AppTest {
  private final static Logger LOGGER = Logger.getLogger(AppTest.class);
  public static void main(String[] args) {
    ConfigurableApplicationContext context = new ClassPathXmlApplicationContext(
        "spring.xml");
    CustomerService cust = (CustomerServicecontext
        .getBean("customerService");
    LOGGER.info(cust);

  }
}


This is CustomerDAO.java file having the DAO logic to access the database information.


 

    
package com.cv.spring.annotation.component;

import org.springframework.stereotype.Repository;

/**
 @author Chandra Vardhan
 */
@Repository
public class CustomerDAO {
  @Override
  public String toString() {
    return "Hello , This is CustomerDAO";
  }
}


This is CustomerService.java file having the service/business logic to call the DAO layer and get the information from database.


 

    
package com.cv.spring.annotation.component;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

/**
 @author Chandra Vardhan
 */
@Service
public class CustomerService {
  
  @Autowired
  CustomerDAO customerDAO;

  public void setCustomerDAO(CustomerDAO customerDAO) {
    this.customerDAO = customerDAO;
  }

  @Override
  public String toString() {
    return "CustomerService [customerDAO=" + customerDAO + "]";
  }

}




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>SpringComponentAnnotation3</artifactId> <name>SpringComponentAnnotation3</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> <dependency> <groupId>javax.inject</groupId> <artifactId>javax.inject</artifactId> <version>1</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 spring.xml file having the spring configuration properties.


 
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:mvc="http://www.springframework.org/schema/mvc" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-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/context http://www.springframework.org/schema/context/spring-context-4.0.xsd">
<context:component-scan base-package="com.cv.spring.annotation.component" />
</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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