(笔记)Spring 中的基本思想 ICO/DI(Dependency Injection)
How to inject the param?
There are two way...
The first way:
package Apple;
public class Apples {
AppleDao apple;
public AppleDao getApple() {
return apple;
}
public void setApple(AppleDao apple) {
this.apple = apple;
}
public void add(){
apple.addApple(1, "", "", 102);
apple.deleteApple(1);
}
}
Show on ApplicationContext.xml
<beans>
<bean name="apple" ref="apple2"></property>
</bean>
</beans>
The other one:
package Apple;
public class Apples {
AppleDao apple;
public void Apples(AppleDao apple) {
this.apple = apple;
}
public void add(){
apple.addApple(1, "", "", 102);
apple.deleteApple(1);
}
}
Show on ApplicationContext.xml
<bean name="apples" class="Apple.Apples">
<constructor-arg ref="apple2"></constructor-arg></bean>
