Spring 属性注入方式

   <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-webmvc</artifactId>
            <version>5.3.15</version>
   </dependency>

public class Address {
    String address;
 
    public String getAddress() {
        return address;
    }
 
    public void setAddress(String address) {
        this.address = address;
    }
 
    @Override
    public String toString() {
        return "Address{" +
                "address='" + address + '\'' +
                '}';
    }
}

public class Student {
    String name;
    Address address;
    String[] books;
    List<String> hobbys;
    Map<String,String> teacher;
    Set<String> set;
    Properties info;
 
    public String getName() {
        return name;
    }
 
    public void setName(String name) {
        this.name = name;
    }
 
    public Address getAddress() {
        return address;
    }
 
    public void setAddress(Address address) {
        this.address = address;
    }
 
    public String[] getBooks() {
        return books;
    }
 
    public void setBooks(String[] books) {
        this.books = books;
    }
 
    public List<String> getHobbys() {
        return hobbys;
    }
 
    public void setHobbys(List<String> hobbys) {
        this.hobbys = hobbys;
    }
 
    public Map<String, String> getTeacher() {
        return teacher;
    }
 
    public void setTeacher(Map<String, String> teacher) {
        this.teacher = teacher;
    }
 
    public Set<String> getSet() {
        return set;
    }
 
    public void setSet(Set<String> set) {
        this.set = set;
    }
 
    public Properties getInfo() {
        return info;
    }
 
    public void setInfo(Properties info) {
        this.info = info;
    }
 
    @Override
    public String toString() {
        return "Student{" +
                "name='" + name + '\'' +
                ", address=" + address +
                ", books=" + Arrays.toString(books) +
                ", hobbys=" + hobbys +
                ", teacher=" + teacher +
                ", set=" + set +
                ", info=" + info +
                '}';
    }
}

<?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-3.0.xsd">
 
    <bean id="address" class="Address">
        <property name="address" value="广东"/>
    </bean>
 
    <bean id="student" class="Student">
        <property name="name" value="小王"/>
        <property name="address" ref="address"/>
        <property name="books">
            <array>
                <value>西游记</value>
                <value>水浒传</value>
                <value>红楼梦</value>
            </array>
        </property>
 
        <property name="hobbys">
            <list>
                <value>跑步</value>
                <value>看电影</value>
            </list>
        </property>
 
        <property name="teacher">
            <map>
                <entry key="chinese" value="小王"></entry>
                <entry key="math" value="小丽"></entry>
            </map>
        </property>
 
        <property name="set">
            <set>
                <value>111</value>
                <value>222</value>
            </set>
 
        </property>
 
        <property name="info">
            <props>
                <prop key="studentnumber">1111111111</prop>
                <prop key="class">0502</prop>
            </props>
        </property>
    </bean>
</beans>

    public static void main(String[] args) {
        ApplicationContext context = new ClassPathXmlApplicationContext("beans.xml");
        Student student = (Student) context.getBean("student");
        System.out.println(student.toString());
    }