spring - Springboot 服务器无法启动，企业应用程序
问题描述
你好，我是当前的学生和完全的 JEE 菜鸟，我用 mvn 创建了一个多模块项目，当我从我的 application.java 启动服务器时，我收到了这个错误，我不太确定如何解决它..我要考试了起来，我很紧张，所以非常感谢任何帮助！抱歉，如果这是一个微不足道的问题和/或问题。
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( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
\\/ ___)| |_)| | | | | || (_| | ) ) ) )
' |____| .__|_| |_|_| |_\__, | / / / /
=========|_|==============|___/=/_/_/_/
:: Spring Boot :: (v2.1.4.RELEASE)
[INFO] Starting Application on DESKTOP-4KFU8LQ with PID 9036 (C:\Users\Kevin\Desktop\mockExam\frontend\target\classes started by Kevin in C:\Users\Kevin\Desktop\mockExam)
[INFO] No active profile set, falling back to default profiles: default
[INFO] Bootstrapping Spring Data repositories in DEFAULT mode.
[INFO] Finished Spring Data repository scanning in 19ms. Found 0 repository interfaces.
[INFO] Bean 'org.springframework.transaction.annotation.ProxyTransactionManagementConfiguration' of type [org.springframework.transaction.annotation.ProxyTransactionManagementConfiguration$$EnhancerBySpringCGLIB$$ce869900] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying)
[INFO] Bean 'org.joinfaces.autoconfigure.javaxfaces.JsfBeansAutoConfiguration$Jsf2_3AutoConfiguration' of type [org.joinfaces.autoconfigure.javaxfaces.JsfBeansAutoConfiguration$Jsf2_3AutoConfiguration$$EnhancerBySpringCGLIB$$dea1e2b5] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying)
[INFO] Bean 'org.joinfaces.autoconfigure.javaxfaces.JsfBeansAutoConfiguration' of type [org.joinfaces.autoconfigure.javaxfaces.JsfBeansAutoConfiguration$$EnhancerBySpringCGLIB$$92d067bb] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying)
[INFO] Tomcat initialized with port(s): 8080 (http)
[INFO] Initializing ProtocolHandler ["http-nio-8080"]
[INFO] Starting service [Tomcat]
[INFO] Starting Servlet engine: [Apache Tomcat/9.0.17]
[INFO] At least one JAR was scanned for TLDs yet contained no TLDs. Enable debug logging for this logger for a complete list of JARs that were scanned but no TLDs were found in them. Skipping unneeded JARs during scanning can improve startup time and JSP compilation time.
[INFO] Initializing Spring embedded WebApplicationContext
[INFO] Root WebApplicationContext: initialization completed in 1929 ms
[INFO] Resolving classes for com.sun.faces.config.FacesInitializer took 1.038s
[INFO] Initializing Mojarra 2.3.8 ( 20181116-0037 55af8b79ca53ec2df566f9c08a430259d30f9ba5) for context ''
[INFO] JSF1048: PostConstruct/PreDestroy annotations present. ManagedBeans methods marked with these annotations will have said annotations processed.
[WARN] Exception encountered during context initialization - cancelling refresh attempt: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'flyway' defined in class path resource [org/springframework/boot/autoconfigure/flyway/FlywayAutoConfiguration$FlywayConfiguration.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.flywaydb.core.Flyway]: Factory method 'flyway' threw exception; nested exception is java.lang.IllegalStateException: Cannot find migrations location in: [classpath:db/migration] (please add migrations or check your Flyway configuration)
[INFO] Stopping service [Tomcat]
[INFO]
Error starting ApplicationContext. To display the conditions report re-run your application with 'debug' enabled.
[ERROR] Application run failed
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'flyway' defined in class path resource [org/springframework/boot/autoconfigure/flyway/FlywayAutoConfiguration$FlywayConfiguration.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.flywaydb.core.Flyway]: Factory method 'flyway' threw exception; nested exception is java.lang.IllegalStateException: Cannot find migrations location in: [classpath:db/migration] (please add migrations or check your Flyway configuration)
at org.springframework.beans.factory.support.ConstructorResolver.instantiate(ConstructorResolver.java:627)
at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:456)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1321)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1160)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:555)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:515)
at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:320)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:318)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:199)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:307)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:199)
at org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:1105)
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:867)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:549)
at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:142)
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:775)
at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:397)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:316)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1260)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1248)
at org.example.mockexam.Application.main(Application.java:13)
Caused by: org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.flywaydb.core.Flyway]: Factory method 'flyway' threw exception; nested exception is java.lang.IllegalStateException: Cannot find migrations location in: [classpath:db/migration] (please add migrations or check your Flyway configuration)
at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:185)
at org.springframework.beans.factory.support.ConstructorResolver.instantiate(ConstructorResolver.java:622)
... 21 common frames omitted
Caused by: java.lang.IllegalStateException: Cannot find migrations location in: [classpath:db/migration] (please add migrations or check your Flyway configuration)
at org.springframework.util.Assert.state(Assert.java:94)
at org.springframework.boot.autoconfigure.flyway.FlywayAutoConfiguration$FlywayConfiguration.checkLocationExists(FlywayAutoConfiguration.java:194)
at org.springframework.boot.autoconfigure.flyway.FlywayAutoConfiguration$FlywayConfiguration.flyway(FlywayAutoConfiguration.java:153)
at org.springframework.boot.autoconfigure.flyway.FlywayAutoConfiguration$FlywayConfiguration$$EnhancerBySpringCGLIB$$4e8466a0.CGLIB$flyway$0(<generated>)
at org.springframework.boot.autoconfigure.flyway.FlywayAutoConfiguration$FlywayConfiguration$$EnhancerBySpringCGLIB$$4e8466a0$$FastClassBySpringCGLIB$$92d06f5a.invoke(<generated>)
at org.springframework.cglib.proxy.MethodProxy.invokeSuper(MethodProxy.java:244)
at org.springframework.context.annotation.ConfigurationClassEnhancer$BeanMethodInterceptor.intercept(ConfigurationClassEnhancer.java:363)
at org.springframework.boot.autoconfigure.flyway.FlywayAutoConfiguration$FlywayConfiguration$$EnhancerBySpringCGLIB$$4e8466a0.flyway(<generated>)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:566)
at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:154)
... 22 common frames omitted
Process finished with exit code 1
解决方案
错误日志描述“在 [classpath:db/migration] 中找不到迁移位置（请添加迁移或检查您的 Flyway 配置）”请显示有关 Flyway 配置的更多信息
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