Setter Injection
Employee.java
/**
* @author anthakur
*
*/
public class Employee {
private int id;
private String name;
private int salary;
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
/**
* @return the id
*/
public int getId() {
return id;
}
/**
* @param id the id to set
*/
public void setId(int id) {
this.id = id;
}
public int getSalary() {
return salary;
}
public void setSalary(int salary) {
this.salary = salary;
}
@Override
public String toString() {
return "Employee [id=" + id + ", name=" + name + ", salary=" + salary + "]";
}
}
applicationContext.xml
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:context="http://www.springframework.org/schema/context"
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">
<context:component-scan base-package="com.bebo.*"></context:component-scan>
<context:property-placeholder location="classpath:/application.properties"/>
<bean id="employee" class="com.bebo.model.Employee">
<property name="id" value="1"> </property>
<property name="name" value="Anil Thakur"> </property>
<property name="salary" value="100"> </property>
</bean>
</beans>
pom.xml
<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">
<modelVersion>4.0.0</modelVersion>
<groupId>SpringDemo2</groupId>
<artifactId>SpringDemo2</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>war</packaging>
<build>
<sourceDirectory>src</sourceDirectory>
<plugins>
<plugin>
<artifactId>maven-war-plugin</artifactId>
<version>2.6</version>
<configuration>
<warSourceDirectory>WebContent</warSourceDirectory>
<failOnMissingWebXml>false</failOnMissingWebXml>
</configuration>
</plugin>
<plugin>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.3</version>
<configuration>
<source>1.8</source>
<target>1.8</target>
</configuration>
</plugin>
</plugins>
</build>
<properties>
<spring.version>4.0.2.RELEASE</spring.version>
<servlet.api.version>2.5</servlet.api.version>
<jsp.api.version>2.2</jsp.api.version>
<jstl.version>1.2</jstl.version>
<oracle.version>11.2.0.3</oracle.version>
</properties>
<dependencies>
<!-- servlet dependency -->
<dependency>
<groupId>javax.servlet.jsp</groupId>
<artifactId>jsp-api</artifactId>
<version>${jsp.api.version}</version>
</dependency>
<!-- https://mvnrepository.com/artifact/commons-logging/commons-logging -->
<dependency>
<groupId>commons-logging</groupId>
<artifactId>commons-logging</artifactId>
<version>1.1.1</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-core</artifactId>
<version>${spring.version}</version>
<exclusions>
<exclusion>
<groupId>commons-logging</groupId>
<artifactId>commons-logging</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-web</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>${spring.version}</version>
</dependency>
<!-- All Mail related stuff + Much more -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context-support</artifactId>
<version>${spring.version}</version>
</dependency>
</dependencies>
</project>
MainClass.java
/**
*
*/
package com.bebo;
import org.springframework.beans.factory.BeanFactory;
import org.springframework.beans.factory.xml.XmlBeanFactory;
import org.springframework.core.io.ClassPathResource;
import org.springframework.core.io.Resource;
import com.bebo.model.Employee;
/**
* @author anthakur
*
*/
public class MainClass {
/**
* @param args
*/
public static void main(String[] args) {
Resource resource =new ClassPathResource("applicationContext.xml");
BeanFactory beanFactory =new XmlBeanFactory(resource);
Employee employee =(Employee) beanFactory.getBean("employee");
System.out.println(employee.toString());
}
}
Constructor Injection
pom.xml will be same
MainClass.java will be same
In ApplicationContext.xml
<bean id="employee" class="com.bebo.model.Employee">
<constructor-arg value="1" ></constructor-arg>
<constructor-arg name="name" value="Anil" ></constructor-arg>
<constructor-arg value="100" ></constructor-arg>
</bean>
Output
SLF4J: Failed to load class "org.slf4j.impl.StaticLoggerBinder".
SLF4J: Defaulting to no-operation (NOP) logger implementation
SLF4J: See http://www.slf4j.org/codes.html#StaticLoggerBinder for further details.
Employee [id=1, name=Anil, salary=100]