Spring 循环依赖

Spring Bean循环依赖

错误：

Error creating bean with name 'debtServiceImpl': Bean with name 'debtServiceImpl' has been injected into other beans [repayBillServiceImpl,investServiceImpl,receiveBillServiceImpl] in its raw version as part of a circular reference, but has eventually been wrapped. This means that said other beans do not use the final version of the bean. This is often the result of over-eager type matching - consider using 'getBeanNamesOfType' with the 'allowEagerInit' flag turned off, for example.  

错误出现场景：A中依赖的有B，B中依赖的有A

public class ClassA {  
    @Autowired  
    ClassB classB;  
}  
  
public class ClassB {  
    @Autowired  
    ClassA classA ;  
}  

解决：

一：重构

二：Bean配置

<bean id="ServiceDependent1" class="org.xyz.ServiceDependent1" lazy-init="true">  
      <constructor-arg ref="Service"/>  
</bean>  
      
<bean id="ServiceDependent2" class="org.xyz.ServiceDependent2" lazy-init="true">  
      <constructor-arg ref="Service"/>  
</bean> 

三：加Lazy延迟加载注解

@Autowired  
@Lazy  
private ClassA classA;  
@Autowired  
@Lazy  
private ClassB classB;