Spring依赖性和详细配置

属性在xml中的注入

1. javaBean

public class Student {
    //普通类型
    private String name;
    //引用类型
    private Skill skill;
    //数组
    private String[] util= new String[100];
    //List类型
    private List<String> family;
    //Set类型
    private Set<String> project;
    //Map类型
    private Map<Integer,String> room;
    //配置类
    private Properties bean;
    //null
    private String address;

    public String getAddress() {
        return address;
    }

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

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public Skill getSkill() {
        return skill;
    }

    public void setSkill(Skill skill) {
        this.skill = skill;
    }

    public List<String> getFamily() {
        return family;
    }

    public void setFamily(List<String> family) {
        this.family = family;
    }

    public Set<String> getProject() {
        return project;
    }

    public void setProject(Set<String> project) {
        this.project = project;
    }

    public Map<Integer, String> getRoom() {
        return room;
    }

    public void setRoom(Map<Integer, String> room) {
        this.room = room;
    }

    public Properties getBean() {
        return bean;
    }

    public void setBean(Properties bean) {
        this.bean = bean;
    }

    public String[] getUtil() {
        return util;
    }

    public void setUtil(String[] util) {
        this.util = util;
    }

    @Override
    public String toString() {
        return "Student{" +
                "name='" + name + '\'' +
                ", skill=" + skill.toString() +
                ", util=" + Arrays.toString(util) +
                ", family=" + family +
                ", project=" + project +
                ", room=" + room +
                ", bean=" + bean +
                ",address="+address+
                '}';
    }

}
//子类
class Skill {
   private List<String> skills;

    public List<String> getSkills() {
        return skills;
    }

    public void setSkills(List<String> skills) {
        this.skills = skills;
    }

    @Override
    public String toString() {
        return "Skill{" +
                "skills=" + skills +
                '}';
    }
}

2. xml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
        https://www.springframework.org/schema/beans/spring-beans.xsd">
    <!--引用类-->
    <bean id="skill" class="com.mcwen.pojo.Skill">
        <property name="skills">
            <list>
                <value>coding skill</value>
            </list>
        </property>
    </bean>
    <bean id="student" class="com.mcwen.pojo.Student">
    <!--普通属性-->
        <property name="name" value="李白"/>
    <!--引用-->
        <property name="skill" ref="skill"/>
    <!--数组-->
        <property name="util">
            <array>
                <value>1212</value>
            </array>
        </property>
     <!--配置文件-->
        <property name="bean">
            <props>
                <prop key="1">hello properties</prop>
                <prop key="2">hello properties</prop>
            </props>
        </property>
      <!--List-->
        <property name="family" >
            <list>
                <value>family list</value>
                <value>family list</value>
            </list>
        </property>
       <!--Set-->
        <property name="project">
            <set>
                <value>project set</value>
            </set>
        </property>
       <!--Map-->        
        <property name="room">
            <map>
                <entry key="1" value="hello map"/>
            </map>
        </property>
       <!--null-->
        <property name="address">
            <null/>
        </property>
    </bean>


</beans>

3. 测试类

@Test
public void testDemo01(){
    ClassPathXmlApplicationContext context = new ClassPathXmlApplicationContext("beans01.xml");
    Student student = context.getBean("student", Student.class);
    System.out.println(student.toString());
}

4. 运行结果