Spring依赖注入之set注入（各类型注入方式）

Student（学生类）

---

package com.kuang.pojo;

import java.util.*;

public class Student {
    private String name;
    private Address address;
    private String[] books;
    private List<String> hobbys;
    private Map<String,String> card;
    private Set<String> games;
    private String wife;
    private 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> getCard() {
        return card;
    }

    public void setCard(Map<String, String> card) {
        this.card = card;
    }

    public Set<String> getGames() {
        return games;
    }

    public void setGames(Set<String> games) {
        this.games = games;
    }

    public String getWife() {
        return wife;
    }

    public void setWife(String wife) {
        this.wife = wife;
    }

    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 +
                ", card=" + card +
                ", games=" + games +
                ", wife='" + wife + '\'' +
                ", info=" + info +
                '}';
    }
}

Address(地址类)

---

package com.kuang.pojo;

public class Address {
    private String address;

    public String getAddress() {
        return address;
    }

    public void setAddress(String address) {
        this.address = address;
    }

    @Override
    public String toString() {
        return "Address{" +
                "address='" + address + '\'' +
                '}';
    }
}

beans.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
        https://www.springframework.org/schema/beans/spring-beans.xsd">
<!-- set注入 -->
    <bean id="address" class="com.kuang.pojo.Address">
        <property name="address" value="火之国：木叶村"/>
    </bean>

    <bean id="student" class="com.kuang.pojo.Student">
        <!--第一种：普通值注入，value-->
        <property name="name" value="漩涡鸣人"/>
        <!--第二种：Bean注入，ref-->
        <property name="address" ref="address"/>
        <!--数组注入-->
        <property name="books">
            <array>
                <value>海贼王</value>
                <value>小叮当</value>
                <value>君的名字</value>
                <value>火影忍者</value>
            </array>
        </property>
        <!--list注入-->
        <property name="hobbys">
            <list>
                <value>写bug</value>
                <value>找bug</value>
                <value>改bug</value>
            </list>
        </property>
        <!--Map-->
        <property name="card">
            <map>
                <entry key="身份证" value="木叶村：七代目"/>
                <entry key="银行卡" value="木叶村：自己脑补"/>
            </map>
        </property>
        <!--Set-->
        <property name="games">
            <set>
                <value>wzry</value>
                <value>cjzc</value>
                <value>mrzh</value>
            </set>
        </property>
        <!-- null -->
        <property name="wife">
            <null/>
        </property>
        <!-- Properties -->
        <property name="info">
            <props>
                <prop key="username">那累都</prop>
                <prop key="password">1234</prop>
                <prop key="sex">man</prop>
                <prop key="driver">77</prop>
            </props>
        </property>


    </bean>

</beans>

MyTest(测试类)

---

import com.kuang.pojo.Student;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;

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

        /*
        Student{name='漩涡鸣人',
          address=Address{address='火之国：木叶村'},
          books=[海贼王, 小叮当, 君的名字, 火影忍者],
          hobbys=[写bug, 找bug, 改bug],
          card={身份证=木叶村：七代目, 银行卡=木叶村：自己脑补},
          games=[wzry, cjzc, mrzh],
          wife='null',
          info={password=1234, sex=man, driver=77, username=那累都}}
         */
    }
}