如何动态地将参数传递给Spring bean [英] How to pass parameters dynamically to Spring beans
本文介绍了如何动态地将参数传递给Spring bean的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我是Spring的新手。
I am new to Spring.
这是bean注册的代码:
This is the code for bean registration:
<bean id="user" class="User_Imple"> </bean>
<bean id="userdeff" class="User"> </bean>
这是我的bean类:
public class User_Imple implements Master_interface {
private int id;
private User user; // here user is another class
public User_Imple() {
super();
}
public User_Imple(int id, User user) {
super();
this.id = id;
this.user = user;
}
// some extra functions here....
}
这是我执行操作的主要方法:
and this is my main method to perform action:
public static void main(String arg[]) {
ApplicationContext context = new ClassPathXmlApplicationContext("/bean.xml");
Master_interface master = (Master_interface)context.getBean("user");
// here is my some operations..
int id = ...
User user = ...
// here is where i want to get a Spring bean
User_Imple userImpl; //want Spring-managed bean created with above params
}
现在我想打电话这个带有参数的构造函数,这些参数是在我的main方法中动态生成的。这就是我想要动态传递的意思 - 不是静态传递,就像在我的 bean.config
文件中声明一样。
Now I want to call this constructor with parameters, and these parameters are generated dynamically in my main methods. This is what I mean by I want to pass dynamically – not statically, like declared in my bean.config
file.
推荐答案
请看构造函数注入。
另外,看看 IntializingBean 和 BeanPostProcessor 用于其他生命周期拦截springbean。
Also, Have a look at IntializingBean and BeanPostProcessor for other life cycle interception of a springbean.
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