Factory method 'defaultValidator' threw exception; nested exception is java.lang.IllegalAccessError:

springCloud 创建注册中心时报错 从这里开始出现报错信息

Error starting ApplicationContext. To display the conditions report re-run your application with ‘debug’ enabled.
2019-07-29 15:37:48.986 ERROR 5200 — [ main] o.s.boot.SpringApplication : Application run failed

org.springframework.beans.factory.BeanCreationException: Error creating bean with name ‘defaultValidator’ defined in class path resource [org/springframework/boot/autoconfigure/validation/ValidationAutoConfiguration.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.validation.beanvalidation.LocalValidatorFactoryBean]: Factory method ‘defaultValidator’ threw exception; nested exception is java.lang.IllegalAccessError: javax/el/Util
at org.springframework.beans.factory.support.ConstructorResolver.instantiate(ConstructorResolver.java:627) ~[spring-beans-5.1.8.RELEASE.jar:5.1.8.RELEASE]
at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:456) ~[spring-beans-5.1.8.RELEASE.jar:5.1.8.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1321) ~[spring-beans-5.1.8.RELEASE.jar:5.1.8.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1160) ~[spring-beans-5.1.8.RELEASE.jar:5.1.8.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:555) ~[spring-beans-5.1.8.RELEASE.jar:5.1.8.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:515) ~[spring-beans-5.1.8.RELEASE.jar:5.1.8.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:320) ~[spring-beans-5.1.8.RELEASE.jar:5.1.8.RELEASE]
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222) ~[spring-beans-5.1.8.RELEASE.jar:5.1.8.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:318) ~[spring-beans-5.1.8.RELEASE.jar:5.1.8.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:199) ~[spring-beans-5.1.8.RELEASE.jar:5.1.8.RELEASE]
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:845) ~[spring-beans-5.1.8.RELEASE.jar:5.1.8.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:877) ~[spring-context-5.1.8.RELEASE.jar:5.1.8.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:549) ~[spring-context-5.1.8.RELEASE.jar:5.1.8.RELEASE]
at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:140) ~[spring-boot-2.1.6.RELEASE.jar:2.1.6.RELEASE]
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:742) [spring-boot-2.1.6.RELEASE.jar:2.1.6.RELEASE]
at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:389) [spring-boot-2.1.6.RELEASE.jar:2.1.6.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:311) [spring-boot-2.1.6.RELEASE.jar:2.1.6.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1213) [spring-boot-2.1.6.RELEASE.jar:2.1.6.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1202) [spring-boot-2.1.6.RELEASE.jar:2.1.6.RELEASE]
at com.example.eurekaserver.EurekaserverApplication.main(EurekaserverApplication.java:14) [classes/:na]
Caused by: org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.validation.beanvalidation.LocalValidatorFactoryBean]: Factory method ‘defaultValidator’ threw exception; nested exception is java.lang.IllegalAccessError: javax/el/Util
at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:185) ~[spring-beans-5.1.8.RELEASE.jar:5.1.8.RELEASE]
at org.springframework.beans.factory.support.ConstructorResolver.instantiate(ConstructorResolver.java:622) ~[spring-beans-5.1.8.RELEASE.jar:5.1.8.RELEASE]
… 19 common frames omitted
Caused by: java.lang.IllegalAccessError: javax/el/Util
at javax.el.ELManager.getExpressionFactory(ELManager.java:30) ~[tomcat-embed-el-9.0.21.jar:2.2.FR]
at org.hibernate.validator.messageinterpolation.ResourceBundleMessageInterpolator.buildExpressionFactory(ResourceBundleMessageInterpolator.java:88) ~[hibernate-validator-6.0.17.Final.jar:6.0.17.Final]
at org.hibernate.validator.messageinterpolation.ResourceBundleMessageInterpolator.(ResourceBundleMessageInterpolator.java:47) ~[hibernate-validator-6.0.17.Final.jar:6.0.17.Final]
at org.hibernate.validator.internal.engine.ConfigurationImpl.getDefaultMessageInterpolator(ConfigurationImpl.java:474) ~[hibernate-validator-6.0.17.Final.jar:6.0.17.Final]
at org.springframework.boot.validation.MessageInterpolatorFactory.getObject(MessageInterpolatorFactory.java:52) ~[spring-boot-2.1.6.RELEASE.jar:2.1.6.RELEASE]
at org.springframework.boot.autoconfigure.validation.ValidationAutoConfiguration.defaultValidator(ValidationAutoConfiguration.java:57) ~[spring-boot-autoconfigure-2.1.6.RELEASE.jar:2.1.6.RELEASE]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_162]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_162]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_162]
at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_162]
at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:154) ~[spring-beans-5.1.8.RELEASE.jar:5.1.8.RELEASE]
… 20 common frames omitted

Process finished with exit code 1

在网上找了好多信息 都指向 tomcat7中的el-api,版本太低
其中一个贴子解决方案是这个https://blog.youkuaiyun.com/yzhbyssgdbd123/article/details/89880591
在pom中添加
<dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> <version>1.5.6.RELEASE</version> </dependency>
着实解决了问题
我在引入的时候 最开始是没有引入1.5.6的包文件,是根据idea提示的2.1.6, 然后不好使,继续报错

最后导入1.5.6的成功启动 没有问题

### 解决Docker环境中Factory方法'dataSource'抛出NullPointerException异常的方法 在处理`Factory method 'dataSource' threw exception; nested exception is java.lang.NullPointerException`错误时,通常意味着Spring容器尝试初始化数据源对象的过程中遇到了问题。这可能是由于配置不正确、依赖注入失败或其他环境因素引起的。 #### 配置检查 确保应用程序上下文中关于DataSource的定义是完整的,并且所有的属性都已正确定义[^1]: ```xml <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource"> <property name="driverClassName" value="${jdbc.driver}" /> <property name="url" value="${jdbc.url}" /> <property name="username" value="${jdbc.username}" /> <property name="password" value="${jdbc.password}" /> </bean> ``` 如果使用的是Java Config,则应如下所示设置: ```java @Bean public DataSource dataSource() { BasicDataSource dataSource = new BasicDataSource(); dataSource.setDriverClassName(env.getProperty("jdbc.driver")); dataSource.setUrl(env.getProperty("jdbc.url")); dataSource.setUsername(env.getProperty("jdbc.username")); dataSource.setPassword(env.getProperty("jdbc.password")); return dataSource; } ``` #### Docker特定注意事项 当运行于Docker环境下时,还需考虑网络连接性和服务启动顺序等问题。确认数据库服务器对于Docker容器来说可达,并且等待直到数据库完全启动后再让应用去访问它。 #### 日志分析 查看详细的日志输出可以帮助定位具体原因。特别是要留意任何有关资源加载失败的信息,比如找不到JAR文件中的类或无法解析占位符变量等。 #### 使用阿里云Maven仓库加速构建过程 有时本地缓存或者私有库可能存在问题,可以按照之前提到的方式切换到更稳定的公共镜像来获取必要的依赖项,从而减少因版本兼容性带来的潜在风险。
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