1、注入TbScore的bean

1）、定义TbScore类

package com.shenmazong.pojo;

public class TbScore {
    private Integer math;
    private Integer history;

    public TbScore(Integer math, Integer history) {
        this.math = math;
        this.history = history;
    }

    @Override
    public String toString() {
        return "TbScore{" +
                "math=" + math +
                ", history=" + history +
                '}';
    }
}

2）、定义bean的注入

<?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="tbScore" class="com.shenmazong.pojo.TbScore">
        <constructor-arg name="math" value="66"></constructor-arg>
        <constructor-arg name="history" value="99"></constructor-arg>
    </bean>

</beans>

3）、测试bean

package com.shenmazong;

import com.shenmazong.pojo.TbScore;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;

public class DemoTest {
    public static void main(String[] args) {
        ApplicationContext app = new ClassPathXmlApplicationContext("applicationContext.xml");
        TbScore tbScore = app.getBean(TbScore.class);
        System.out.println(tbScore);
    }
}

4）、运行项目

2）、set注入

1）、TbStudent类

package com.shenmazong.pojo;

public class TbStudent {

    private String name;
    private TbScore studentScore;

    public TbStudent(String name) {
        this.name = name;
    }

    public TbScore getStudentScore() {
        return studentScore;
    }

    public void setStudentScore(TbScore studentScore) {
        this.studentScore = studentScore;
    }

    @Override
    public String toString() {
        return "TbStudent{" +
                "name='" + name + '\'' +
                ", studentScore=" + studentScore +
                '}';
    }
}

2）、注入配置

<?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="tbScore" class="com.shenmazong.pojo.TbScore">
        <constructor-arg name="math" value="66"></constructor-arg>
        <constructor-arg name="history" value="99"></constructor-arg>
    </bean>
    <bean id="tbStudent" class="com.shenmazong.pojo.TbStudent">
        <constructor-arg name="name" value="武松"></constructor-arg>
        <property name="studentScore" ref="tbScore"></property>
    </bean>

</beans>

3）、测试代码

package com.shenmazong;

import com.shenmazong.pojo.TbScore;
import com.shenmazong.pojo.TbStudent;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;

public class DemoTest {
    public static void main(String[] args) {
        ApplicationContext app = new ClassPathXmlApplicationContext("applicationContext.xml");
        TbStudent tbStudent = app.getBean(TbStudent.class);
        System.out.println(tbStudent);
    }
}

4）、测试运行