1.0 继承关系

实体

package com.java.test5;import java.util.*;/** * @author nidegui * @create 2019-06-22 14:45 */public class People {    private Integer id;    private String name;    private String age;    private String className;    public String getClassName() {        return className;    }    public void setClassName(String className) {        this.className = className;    }    public Integer getId() {        return id;    }    public void setId(Integer id) {        this.id = id;    }    public String getName() {        return name;    }    public void setName(String name) {        this.name = name;    }    public String getAge() {        return age;    }    public void setAge(String age) {        this.age = age;    }    @Override    public String toString() {        return "People{" +                "id=" + id +                ", name='" + name + '\'' +                ", age='" + age + '\'' +                ", className='" + className + '\'' +                '}';    }}

　　

beans.xml

　　

 

2.0 依赖关系

 

3.0引用关系

加入另一个bean，引用。如前面讲到的dog类