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循环依赖,构造器注入依赖的方式会出现
@Component
public class ObjectA {
@Autowired
private ObjectB objectB;
public ObjectA(ObjectB objectB) {
this.objectB = objectB;
}
}
@Component
public class ObjectB {
@Autowired
private ObjectA objectA;
public ObjectB(ObjectA objectA) {
this.objectA = objectA;
}
}
The dependencies of some of the beans in the application context form a cycle:
┌─────┐
| objectA defined in file [/Users/hyuan/IdeaProjects/demo/those-bug-sample/target/classes/cn/zerohy/bug/ioc/ObjectA.class]
↑ ↓
| objectB defined in file [/Users/hyuan/IdeaProjects/demo/those-bug-sample/target/classes/cn/zerohy/bug/ioc/ObjectB.class]
└─────┘