How to pass parameters dynamically to Spring beans

If i get you right, then the correct answer is to use getBean(String beanName, Object... args) method, which will pass arguments to the bean. I can show you, how it is done for Java based configuration, but you'll have to find out how it is done for an XML based configuration.

@Configuration
public class ApplicationConfiguration {
      
  @Bean
  @Scope("prototype")  // As we want to create several beans with different args, right?
  String hello(String name) {
    return "Hello, " + name;
  }
}

// and later in your application

AnnotationConfigApplicationContext context = new AnnotationConfigApplicationContext(ApplicationConfiguration.class);
String helloCat = (String) context.getBean("hello", "Cat");
String helloDog = (String) context.getBean("hello", "Dog");

Is this what are you looking for?

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UPDATE

This answer gets too much upvotes and nobody looks at my comment. Even though it's a solution to the problem, it is considered as a Spring anti-pattern and you shouldn't use it! There are several different ways to do things right using factory, lookup-method, etc.

Please use the following SO post as a point of reference:

• How to instantiate Spring managed beans at runtime?

Please have a look at Constructor injection.

Also, Have a look at IntializingBean and BeanPostProcessor for other life cycle interception of a springbean.

I think the answers proposed above to use constructor injection/setter injection doesn't work perfectly for the use case you are looking for. Spring more or less takes static argument values for constructors/setters. I don't see a way to dynamically pass values to get a Bean from Spring Container. However, if you want to get instances of User_Imple dynamically, I would recommend using a factory class User_Imple_Factory

 
    public class User_Imple_factory {
        private static ApplicationContext context =new ClassPathXmlApplicationContext("/bean.xml");

        public User_Imple createUserImple(int id) {
            User user = context.getBean("User");
            return new User_Imple(id, user);
        }
    }