Spring 注入内部bean

忘是亡心i 2022-12-17 10:58 264阅读 0赞

# ![20201023150014473.png][] #

--------------------

# 一、新建类 #

School.java

public class School {
        private String sname;
    
        public void setSname(String sname) {
            this.sname = sname;
        }
    
        @Override
        public String toString() {
            return "School{" +
                    "sname='" + sname + '\'' +
                    '}';
        }
    }

School.java

public class Student {
        private String name;
        private String gender;
        private School school;
    
        public void setName(String name) {
            this.name = name;
        }
    
        public void setGender(String gender) {
            this.gender = gender;
        }
    
        public void setSchool(School school) {
            this.school = school;
        }
        public void add(){
            System.out.println("姓名:"+name+"  性别:"+gender+"  学校"+school);
        }
    }

# 二、编写配置文件 #

在配置文件中配置对象创建并进行注入

bean7.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.xsd">
    
        <bean id="stu" class="com.health.IOC.G_注入内部bean.beans.Student">
            <property name="name" value="health"/>
            <property name="gender" value="男"/>
            <property name="school">
                <bean id="school" class="com.health.IOC.G_注入内部bean.beans.School">
                    <property name="sname" value="哈佛大学"/>
                </bean>
            </property>
    
        </bean>
    </beans>

# 三、测试 #

test7.java

public class test7 {
        public static void main(String[] args) {
            ApplicationContext context = new ClassPathXmlApplicationContext("com/health/IOC/G_注入内部bean/bean7.xml");
            Student stu = context.getBean("stu", Student.class);
            stu.add();
        }
    }

输出结果：

![20201023150338150.png][]

[20201023150014473.png]: /images/20221122/2f9733d4a9d74ed384fd21e6fd5768e5.png
[20201023150338150.png]: /images/20221122/3e74d5ffbe3e4f3f935fba2d3444920b.png