SSH框架入门学习之二(spring)

Spring也是一个开源框架，我在学习Spring的时候，认为最重要的几点是：IOC（控制反转）、AOP（面向切面）和容器概念。

详细的教程还请大家去看网上的视频，这里贴一个小Demo以供学习。

（前提是大家把该导入的jar包都导入了）

1、Student类和Teacher类

public class Student {
private String name;

public String getName() {
return name;
}

public void setName(String name) {
this.name = name;
}

public void sayHello() {
System.out.println("Hi," + name);
}
}

import java.util.List;

public class Teacher {
private List<Student> stuList;
private String name;

public List<Student> getStuList() {
return stuList;
}
public void setStuList(List<Student> stuList) {
this.stuList = stuList;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}

public void myStu() {
System.out.println(name + " :");
for(int i = 0; i < stuList.size(); i++)
System.out.println(stuList.get(i).getName());
}
}

2、配置文件：applicationContext.xml的配置

<?xml version="1.0" encoding="UTF-8"?

>
<!DOCTYPE beans PUBLIC "-//SPRING//DTD BEAN//EN" "http://www.springframework.org/dtd/spring-beans.dtd">
<beans>
<bean id="student_1" class="Student">
<property name="name" value="小明">
</property>
</bean>

<bean id="student_2" class="Student">
<property name="name" value="小凡">
</property>
</bean>

<bean id="teacher" class="Teacher">
<property name="name" value="崔老师"/>
<property name="stuList">
<list>
<ref bean= "student_1"/>
<ref bean= "student_2"/>
</list>
</property>
</bean>
</beans>

3、主类：main（直接执行就可以）

import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;

public class main {

public static void main(String[] args) {
// TODO Auto-generated method stub
ApplicationContext ac = new ClassPathXmlApplicationContext("applicationContext.xml");

Student stu = (Student) ac.getBean("student_1");
stu.sayHello();

Teacher tec = (Teacher) ac.getBean("teacher");
tec.myStu();
}
}