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spring - 获取 org.springframework.beans.factory.BeanCreationException：使用名称创建 bean 时出错

问题描述

这是我的控制器类。我的代码正在生产中并且正在运行。现在，我在用户故事 II 中并试图做出改变。它开始失败 Autowiring ，所以我更改为 new OrderService 以便可以进行实例化。现在，它失败并给了我 BeanCreationException ，所以我添加了 PostConstruct init 方法，但我仍然收到错误。

@RestController
@RequestMapping("/order")
public class OrderController {

   private static final Logger log = LoggerFactory.getLogger(OrderController.class);

   OrderDetailsService orderDetailsService = new OrderDetailsService();

   @PostMapping
   public OrderResponse order(@RequestBody(required=false) OrderRequest orderRequest) {
      return orderDetailsService.order(orderRequest);
   }

   @PostConstruct
   public void orderControllerinit() {
          log.debug("orderDetailsService = " + orderDetailsService.toString());
    }  
}

这是错误。


rror starting ApplicationContext. To display the conditions report re-run your application with 'debug' enabled.]
[2020-06-12 16:59:53.644] [ERROR] [Context:SpringApplication] [] [Application run failed]
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'orderController' defined in file [C:\Users\P2932832\BPradhan\SCIAautomation\osm-module\target\classes\com\spectrum\sci\osm\controllers\OrderController.class]: Instantiation of bean failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [com.spectrum.sci.osm.controllers.OrderController]: Constructor threw exception; nested exception is java.lang.StackOverflowError
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateBean(AbstractAutowireCapableBeanFactory.java:1320)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1214)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:557)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:517)
    at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:323)
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:321)
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:879)
    at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:878)
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:550)
    at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:141)
    at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:747)
    at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:397)
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:315)
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:1226)
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:1215)
    at com.spectrum.sci.osm.OsmModuleApplication.main(OsmModuleApplication.java:25)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:498)
    at org.springframework.boot.devtools.restart.RestartLauncher.run(RestartLauncher.java:49)
Caused by: org.springframework.beans.BeanInstantiationException: Failed to instantiate [com.spectrum.sci.osm.controllers.OrderController]: Constructor threw exception; nested exception is java.lang.StackOverflowError
    at org.springframework.beans.BeanUtils.instantiateClass(BeanUtils.java:216)
    at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:87)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateBean(AbstractAutowireCapableBeanFactory.java:1312)
    ... 22 common frames omitted
Caused by: java.lang.StackOverflowError: null
    at com.spectrum.sci.osm.service.OrderDetailsService.<init>(OrderDetailsService.java:76)
    at com.spectrum.sci.osm.service.CommonService.<init>(CommonService.java:53)
    at com.spectrum.sci.osm.service.OrderDetailsService.<init>(OrderDetailsService.java:76)
    at com.spectrum.sci.osm.service.CommonService.<init>(CommonService.java:53

标签： spring

解决方案

org.springframework.beans.factory.BeanCreationException不是原因，这是堆栈中的最终异常，你看到了，原因是java.lang.StackOverflowError.

Caused by: java.lang.StackOverflowError: null
    at com.spectrum.sci.osm.service.OrderDetailsService.<init>(OrderDetailsService.java:76)
    at com.spectrum.sci.osm.service.CommonService.<init>(CommonService.java:53)
    at com.spectrum.sci.osm.service.OrderDetailsService.<init>(OrderDetailsService.java:76)
    at com.spectrum.sci.osm.service.CommonService.<init>(CommonService.java:53

看起来，OrderDetailsS​​ervice 创建了 CommonService，它创建了 OrderDetailsS​​ervice，它创建了 CommonService 等，形成了无限递归，从而导致StackOverflowError.

每个类后面的数字(CommonService.java:53)是一个行号，找到并解决递归。

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