三種初始化方式
public class Cat {
@PostConstruct//初始化
public void afterPropertiesSet() throws Exception {
System.out.println(" cat init");
}
@PreDestroy//銷毀
public void destroy() throws Exception {
System.out.println("cat destroy");
}
}
public class User implements InitializingBean,DisposableBean{
public String toString() {
return "444";
}
@Override//初始化
public void afterPropertiesSet() throws Exception {
System.out.println(" user afterPropertiesSet");
}
@Override//銷毀
public void destroy() throws Exception {
System.out.println("user destroy");
}
}
public class Room {
//初始化
public void afterPropertiesSet() throws Exception {
System.out.println(" room afterPropertiesSet");
}
//銷毀
public void destroy() throws Exception {
System.out.println("room destroy");
}
}
@Configuration
public class Cfg1 {
@Bean
public Cat getCat() {
return new Cat();
}
@Bean
public User getUser() {
return new User();
}
@Bean(initMethod="afterPropertiesSet",destroyMethod="destroy")
public Room getRoom() {
return new Room();
}
}