[Spring] xml 사용하기2

Student.java

package com.studentEx;

public class Student {

	private String name;
	private String age;
	private String gradeNum;
	private String classNum;

	public Student(String name, String age, String gradeNum, String classNum) {
		super();
		this.name = name;
		this.age = age;
		this.gradeNum = gradeNum;
		this.classNum = classNum;
	}

	public String getName() {
		return name;
	}

	public String getAge() {
		return age;
	}

	public String getGradeNum() {
		return gradeNum;
	}

	public String getClassNum() {
		return classNum;
	}

}

 

 

StudentInfo.java

package com.studentEx;

public class StudentInfo {

	private Student student;

	public StudentInfo(Student student) {
		this.student = student;
	}
	
	public void getStudentInfo() {
		if(student != null) {
			System.out.println("이름 : "+student.getName());
			System.out.println("나이 : "+student.getAge());
			System.out.println("학년 : "+student.getGradeNum());
			System.out.println("반 : "+student.getClassNum());
			System.out.println("===============================");
		}
	}
	
	public void setStudent(Student student) {
		this.student = student;
	}
}

 

 

MainClass

package com.studentEx;

import org.springframework.context.support.AbstractApplicationContext;
import org.springframework.context.support.GenericXmlApplicationContext;

public class MainClass {

	public static void main(String[] args) {
		String configlocationin = "classpath:StudentCTX.xml";
		AbstractApplicationContext ctx = new GenericXmlApplicationContext(configlocationin);

		StudentInfo studentInfo = ctx.getBean("studentInfo", StudentInfo.class);
		studentInfo.getStudentInfo();

		Student student2 = ctx.getBean("student2", Student.class);
		studentInfo.setStudent(student2);
		studentInfo.getStudentInfo();

		ctx.close();
	}
}

 

 

StudentCTX.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
	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-2.0.xsd">

	<bean id="student1" class="com.studentEx.Student">
		<constructor-arg>
			<value>홍길동</value>
		</constructor-arg>
		<constructor-arg>
			<value>10살</value>
		</constructor-arg>
		<constructor-arg>
			<value>3학년</value>
		</constructor-arg>
		<constructor-arg>
			<value>20번</value>
		</constructor-arg>
	</bean>

	<bean id="student2" class="com.studentEx.Student">
		<constructor-arg>
			<value>슈퍼맨</value>
		</constructor-arg>
		<constructor-arg>
			<value>9살</value>
		</constructor-arg>
		<constructor-arg>
			<value>2학년</value>
		</constructor-arg>
		<constructor-arg>
			<value>15번</value>
		</constructor-arg>
	</bean>

	<bean id="studentInfo" class="com.studentEx.StudentInfo">
		<constructor-arg>
			<ref bean="student1" />
		</constructor-arg>

	</bean>

</beans>

Student의 생성자 값을 여러개를 넣기 위해서는 <constructor-arg>를 사용한다.

어노테이션 효과를 지닌 이 테그는 해당 생성자를 자동으로 매치시켜서 값을 넣어주는 역할을 해준다.

순서대로 값이 들어가므로 그 점만 주의해서 하면 된다.