VIP31/spring-demo/src/main/java/com/sf/anno/Chair.java

package com.sf.anno;

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

/**
 * 椅子
 */
@Component
public class Chair {

    public Chair() {
        System.out.println("Chair 构造器");
    }

    /**
     * 椅子上有一位老师
     *   类别  名字
     * Teacher teacher;
     */
    @Autowired
    private Teacher teacher;

    public Teacher getTeacher() {
        return teacher;
    }

    public void setTeacher(Teacher teacher) {
        System.out.println("Chair setTeacher");
        this.teacher = teacher;
    }

    @Override
    public String toString() {
        return "Chair{" +
                "teacher=" + teacher +
                '}';
    }
}