JDK9以上或JDK6以下使用mail.jar包不加JAF的activation.jar包会抛出该错误!JDK6以上不需要加该jar包: 参考原文 https://stackoverflow.com/questions/8186395/noclassdeffounderror-javax-activation-datasource…

1.错误叙述性说明 usage: java org.apache.catalina.startup.Catalina [ -config {pathname} ] [ -nonaming ] { -help | start | stop } 2014-7-12 14:54:49 org.apache.catalina.core.AprLifecycleListener init 信息: Loaded APR based Apache Tomcat Native library 1.1.29 us…

1.错误描述 2014-7-12 21:06:37 org.hibernate.engine.jdbc.internal.LobCreatorBuilder useContextualLobCreation INFO: HHH000422: Disabling contextual LOB creation as connection was null 2014-7-12 21:06:37 org.springframework.web.context.ContextLoader initWeb…

1.错误描述 usage: java org.apache.catalina.startup.Catalina [ -config {pathname} ] [ -nonaming ] { -help | start | stop } 2014-7-12 19:41:17 org.apache.catalina.core.AprLifecycleListener init 信息: Loaded APR based Apache Tomcat Native library 1.1.29 using…

Caused by: java.lang.ClassNotFoundException: javax.xml.bind.Validation JAXB API是java EE 的API,因此在java SE 9.0 中不再包含这个 Jar 包. java 9 中引入了模块的概念,默认情况下,Java SE中将不再包含java EE 的Jar包 而在 java 6/7 / 8 时关于这个API 都是捆绑在一起的 引入下面依赖即可 jaxb-api maven地址:http://mvnreposit…

最近给自己写了个 SpringBoot 应用程序 顺便练练手,准备把程序过到 树莓派 上,结果登陆报错…

springMVC开发web的时候,报错:java.lang.ClassNotFoundException: javax.servlet.jsp.jstl.core.Config 原因:未引入jstl包 pom.xml引入jstl,问题解决. <!-- java.lang.ClassNotFoundException: javax.servlet.jsp.jstl.core.Config --> <dependency> <groupId>javax.servlet&l…

Exception in thread "main" java.lang.NoClassDefFoundError: javax/persistence/EntityListeners at org.hibernate.cfg.annotations.reflection.JPAMetadataProvider.getDefaults(JPAMetadataProvider.java:96) at org.hibernate.annotations.common.reflection.…

java.lang.ClassNotFoundException: javax.servlet.Filter:有两个原因:(1)在maven中的作用域,不能是provided,需要是compile就是默认的scope(2)spring-boot-starter-tomcat的版本bug,换个新的或旧的版本试试 I Started a new project with Spring Boot 1.2.3. I'm getting error java.lang.NoClassDefFoundErr…

严重: Context initialization failedorg.springframework.beans.factory.BeanCreationException: Error creating bean with name 'org.springframework.validation.beanvalidation.OptionalValidatorFactoryBean#0': Invocation of init method failed; nested exception…