@Component
public class A {
String one;
int two;
public A a = new ("bro",1);
public A b = new ("come",2);
public A(String one, int two) {
this.one = one;
this.two = two;
}
}
我需要在类中创建 2 个对象。如何使用 Spring 的注释来做到这一点? 我应该在属性中指定任何值吗?我应该为 bean 创建创建一个配置类吗?
无法想出解决方案。请帮忙。
只需创建不同的bean,它是同一个父类的子类,非常有必要为您阅读spring框架文档。
这是代码片段
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
@Configuration
public class AConfig {
@Bean
public A a() {
return new A("bro", 1);
}
@Bean
public A b() {
return new A("come", 2);
}
}
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;
@Component
public class SomeComponent {
@Autowired
private A a;
@Autowired
private A b;
public void someMethod() {
// Use instances of class A
System.out.println(a.getOne()); // Output: bro
System.out.println(a.getTwo()); // Output: 1
System.out.println(b.getOne()); // Output: come
System.out.println(b.getTwo()); // Output: 2
}
}