Spring Bean dependency injection data type

1. Common data type (set method injection)
The injection method of common data type
implement the getset method of name and age

 	String name;
    int age;
    public String getName() {
    
    
        return name;
    }
    public void setName(String name) {
    
    
        this.name = name;
    }
    public int getAge() {
    
    
        return age;
    }
    public void setAge(int age) {
    
    
        this.age = age;
    }

Configuration file

<bean id="userDao" class="com.itlaobin.dao.impl.UserDaoImpl">
       <property name="name" value="张三"></property>
        <property name="age" value="18"></property>
</bean>

2. Reference data type (set method injection)
see https://blog.csdn.net/qq_44143902/article/details/109890840
3. Set data type (set method injection)

 <bean id="userDao" class="com.itheima.dao.impl.UserDaoImpl">
        <property name="strlist">
            <list>
                <value>张三</value>
                <value>张四</value>
                <value>张五</value>
            </list>
        </property>
        <property name="UserMap">
            <map>
                <entry key="user1" value-ref="user1"></entry>
                <entry key="user2" value-ref="user2"></entry>
            </map>
        </property>
    </bean>
    
<bean id="user1" class="com.itheima.domain.User">
        <property name="name" value="Tom"></property>
        <property name="addr" value="baijin"></property>
</bean>
<bean id="user2" class="com.itheima.domain.User">
        <property name="name" value="lucy"></property>
        <property name="addr" value="tianjin"></property>
</bean>

<property name="properties">
            <props>
                <prop key="p1">悟空</prop>
                <prop key="p2">悟能</prop>
                <prop key="p3">悟净</prop>
            </props>
</property>