1、Test Disk
MoveDisk
UsbDisk
applicationContext.xml头文件
<bean name="disk" class="dao.impl.MoveDisk">
public class test extends TestCase{
ApplicationContext ctx=new
ClassPathXmlApplicationContext("applicationContext.xml");
Disk disk=(Disk)ctx.getBean("disk");
}
2、注入
<!--setter-->
<bean name="sService" class="dao.imple.StudentService">
<property name="sid" value="S001"/>
<property name="sname" value="流弊"/>
<property name="sage" value="25"/>
<!--constructor-->
<bean name="sService" class="dao.imple.StudentService">
<constructor-arg index="0" value="S001"/>
<constructor-arg index="1" value="流弊"/>
<constructor-arg index="2" value="25"/>
@Resource
@Autowise
@Qulified
联系
<bean name="s" class="StudentsDao">
<bean name="sService" class="dao.imple.StudentService">
<propert name="sDao" bean="s">
<bean name="s" class="StudentsDao">
<bean name="sService" class="dao.imple.StudentService">
<propert name="sDao" ref="s">
3、Set、List、Map
<List>
<value></value>
<value></value>
</List>
<List>
<bean></bean>
<bean></bean>
</List>
<Set>
</Set>
<Map>
4、类型转换问题
(1)BeanFactory solution
<bean id="dateFormat" class="java.text.SimpleDateFormat">
<constructor-arg value="yyyy-MM-dd" />
</bean>
<bean>
<property name="birthday">
<bean factory-bean="dateFormat" factory-method="parse">
<constructor-arg value="2010-01-31" />
</bean>
</property>
</bean>
5、Bean生存范围
Singleton:默认、引用出来两个例子实际为同一地址。
Student s1=(Student).getBean("student");
Student s2=(Student).getBean("student");
s1==s2为true；
Prototype
s1==s2为false;
lazy-init="true"
调用程序才初始化然后加载
init-method="类内方法名"
/destroy-method="类内方法名"
depends-on/实例化这个bean之前要先实例化on后的bean
id等价于Java变量命名，不能出现两个id
name没有限定，可以出现多个 只返回后面的 且可以name="stu,student"
无类名情况
<bean class=1>
<bean class=1>
<bean class=1>
getBean("1#0");
getBean("1#1");
getBean("1#2");
6、Abstract Bean
<bean id="person" abstract="true"
class="dao.Person2">
<property name="name" value="降龙"/>
</bean>
<bean id="student" class="dao.impl.Student"
parent="person">
</bean>
person无法实例化，只能为student提供模板