1. 错误日志

org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'com.sx.qm.service.impl.UnitTest': Unsatisfied dependency expressed through field 'remoteEventLogService'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'com.sx.mm.api.RemoteEventLogService': FactoryBean threw exception on object creation; nested exception is java.lang.IllegalStateException: No fallbackFactory instance of type class com.sx.mm.api.factory.RemoteEventLogFallbackFactory found for feign client remoteEventLogServiceat org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:643)at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:119)at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessProperties(AutowiredAnnotationBeanPostProcessor.java:399)at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1420)at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.autowireBeanProperties(AbstractAutowireCapableBeanFactory.java:392)at org.springframework.test.context.support.DependencyInjectionTestExecutionListener.injectDependencies(DependencyInjectionTestExecutionListener.java:119)at org.springframework.test.context.support.DependencyInjectionTestExecutionListener.prepareTestInstance(DependencyInjectionTestExecutionListener.java:83)at org.springframework.boot.test.autoconfigure.SpringBootDependencyInjectionTestExecutionListener.prepareTestInstance(SpringBootDependencyInjectionTestExecutionListener.java:43)at org.springframework.test.context.TestContextManager.prepareTestInstance(TestContextManager.java:244)at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.createTest(SpringJUnit4ClassRunner.java:227)at org.springframework.test.context.junit4.SpringJUnit4ClassRunner$1.runReflectiveCall(SpringJUnit4ClassRunner.java:289)at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.methodBlock(SpringJUnit4ClassRunner.java:291)at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:246)at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:97)at org.junit.runners.ParentRunner$4.run(ParentRunner.java:331)at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:79)at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:329)at org.junit.runners.ParentRunner.access$100(ParentRunner.java:66)at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:293)at org.springframework.test.context.junit4.statements.RunBeforeTestClassCallbacks.evaluate(RunBeforeTestClassCallbacks.java:61)at org.springframework.test.context.junit4.statements.RunAfterTestClassCallbacks.evaluate(RunAfterTestClassCallbacks.java:70)at org.junit.runners.ParentRunner$3.evaluate(ParentRunner.java:306)at org.junit.runners.ParentRunner.run(ParentRunner.java:413)at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.run(SpringJUnit4ClassRunner.java:190)at org.junit.runners.Suite.runChild(Suite.java:128)at org.junit.runners.Suite.runChild(Suite.java:27)at org.junit.runners.ParentRunner$4.run(ParentRunner.java:331)at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:79)at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:329)at org.junit.runners.ParentRunner.access$100(ParentRunner.java:66)at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:293)at org.junit.runners.ParentRunner$3.evaluate(ParentRunner.java:306)at org.junit.runners.ParentRunner.run(ParentRunner.java:413)at org.junit.runner.JUnitCore.run(JUnitCore.java:137)at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:69)at com.intellij.rt.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:33)at com.intellij.rt.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:220)at com.intellij.rt.junit.JUnitStarter.main(JUnitStarter.java:53)
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'com.sx.mm.api.RemoteEventLogService': FactoryBean threw exception on object creation; nested exception is java.lang.IllegalStateException: No fallbackFactory instance of type class com.sx.mm.api.factory.RemoteEventLogFallbackFactory found for feign client remoteEventLogServiceat org.springframework.beans.factory.support.FactoryBeanRegistrySupport.doGetObjectFromFactoryBean(FactoryBeanRegistrySupport.java:176)at org.springframework.beans.factory.support.FactoryBeanRegistrySupport.getObjectFromFactoryBean(FactoryBeanRegistrySupport.java:101)at org.springframework.beans.factory.support.AbstractBeanFactory.getObjectForBeanInstance(AbstractBeanFactory.java:1828)at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.getObjectForBeanInstance(AbstractAutowireCapableBeanFactory.java:1265)at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:261)at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202)at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:276)at org.springframework.beans.factory.support.DefaultListableBeanFactory.addCandidateEntry(DefaultListableBeanFactory.java:1532)at org.springframework.beans.factory.support.DefaultListableBeanFactory.findAutowireCandidates(DefaultListableBeanFactory.java:1489)at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1270)at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1227)at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:640)... 38 more
Caused by: java.lang.IllegalStateException: No fallbackFactory instance of type class com.sx.mm.api.factory.RemoteEventLogFallbackFactory found for feign client remoteEventLogServiceat com.alibaba.cloud.sentinel.feign.SentinelFeign$Builder$1.getFromContext(SentinelFeign.java:120)at com.alibaba.cloud.sentinel.feign.SentinelFeign$Builder$1.create(SentinelFeign.java:106)at feign.ReflectiveFeign.newInstance(ReflectiveFeign.java:64)at feign.Feign$Builder.target(Feign.java:269)at org.springframework.cloud.openfeign.HystrixTargeter.target(HystrixTargeter.java:38)at org.springframework.cloud.openfeign.FeignClientFactoryBean.loadBalance(FeignClientFactoryBean.java:318)at org.springframework.cloud.openfeign.FeignClientFactoryBean.getTarget(FeignClientFactoryBean.java:347)at org.springframework.cloud.openfeign.FeignClientFactoryBean.getObject(FeignClientFactoryBean.java:327)at org.springframework.beans.factory.support.FactoryBeanRegistrySupport.doGetObjectFromFactoryBean(FactoryBeanRegistrySupport.java:169)... 49 more

2.问题原因

先来看代码,以下是测试类，它继承了测试公共类

public class UnitTest extends CommonTest {@Autowiredprivate RemoteQmtqService remoteQmtqService;@Autowiredprivate RemoteEventLogService remoteEventLogService;@Testpublic void test4() {List<String> matNoList = new ArrayList<>(2);matNoList.add("PC001");matNoList.add("1");SysEventVO sysEventVO = new SysEventVO();sysEventVO.setEventMaker("n.lu");sysEventVO.setEventTime(new Date());sysEventVO.setEventTypeCode(EventConstant.eventTypeCodeEnum.MM.getCode());sysEventVO.setMatNoList(matNoList);sysEventVO.setSysEvent(EventConstant.SysEventEnum.MM01);sysEventVO.setSystemId(EventConstant.systemCodeEnum.LIMS.getCode());try {remoteEventLogService.log(sysEventVO);} catch (Exception e) {e.printStackTrace();}}
}

再来看测试公共类，它是基于SXQmApplication.class类启动的，所以它扫描的时候也是基于这个类的路径来注入的，SXQmApplication类的包路径为：package com.sx.qm;

@RunWith(SpringRunner.class)
@SpringBootTest(classes = {SXQmApplication.class})
@WebAppConfiguration
public class CommonTest {@Beforepublic void init() {System.out.println("开始测试-----------------");}@Afterpublic void after() {System.out.println("测试结束-----------------");}
}

但是来看兜底类的路径如下，它的路径为package com.sx.mm.api.factory; 这样它就不会被注入到spring IOC 中，所以导致找不到。

package com.sx.mm.api.factory;import com.sx.mm.api.RemoteEventLogService;
import com.sx.mm.api.domain.EventConstant;
import com.sx.mm.api.domain.SysEventVO;
import feign.hystrix.FallbackFactory;
import org.apache.ibatis.session.SqlSession;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Component;
import org.springframework.web.bind.annotation.RequestParam;import java.util.Date;
import java.util.List;
import java.util.Map;@Component
public class RemoteEventLogFallbackFactory implements FallbackFactory<RemoteEventLogService> {private static final Logger log = LoggerFactory.getLogger(RemoteEventLogFallbackFactory.class);@Overridepublic RemoteEventLogService create(Throwable throwable) {log.error("物料模块-事件服务调用失败:{}", throwable.getMessage());return new RemoteEventLogService(){@Overridepublic String log(SysEventVO sysEventVO) throws Exception{return null;};};}
}

3.解决方法

在启动类加上这句：@ComponentScans(value = {@ComponentScan(“com.sx.mm”)})，启动时去扫描com.sx.mm路径下的组件，这样就能找到了。

@EnableCustomConfig
@EnableCustomSwagger2
@EnableRyFeignClients
@SpringCloudApplication
@MapperScan("com.sx.qm.mapper")
@ComponentScans(value = {@ComponentScan("com.sx.mm")})
public class SXQmApplication
{public static void main(String[] args){SpringApplication.run(SXQmApplication.class, args);System.out.println("质量模块启动成功——————");}
}

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No fallbackFactory instance of type class 问题处理

No fallbackFactory instance of type class 问题处理

1. 错误日志

2.问题原因

3.解决方法

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