eclipse里面启动tomcat报这个错误的原因是由于jar包冲突了,在我的项目里面引入了jar包,但是我的工程里面有这个jar包的两个工程,都被导入到同一个项目里面了,导致不知道该去用哪一个类,所以报这个错误.…

升级了JDK之后,启动应用,直接抛出此异常.网上搜罗半天,没有正确的解决方案. 然后想到了是“升级了JDK”,重新检查所有JDK相关的配置的地方,在Debug Configurations里找到启动时默认配置了系统环境JDK,更换之,重启,好使了..... 总结一下,网上的解决方案不一定都适用自己遇到的问题,很多问题向前排查一步,或许就能找到原因. (网上出现的此异常情况原因有:缺Jar(这个不一定会抛此异常).重复命名service(@service(***)导致重名bean,spring不知…

在运行项目时出现了:LifecycleProcessor not initialized - call 'refresh' before invoking lifecycle methods via the context: Root WebApplicationContext: startup date [Sun Jan 13 17:59:19 CST 2019]; root of context hierarchy 我在百度搜索了半天,都试了一下,却都不是我要的结果, 后来才发现这不是我运行…

使用idea工具更改项目包名时报 :java.lang.ClassNotFoundException 解决方案: 1.删除项目的target目录,这个目录存放的是编译后的文件 2.清除缓存 3.重新编译 4.删除项目结构 5.关闭idea重新启动 总而言之,一句话,能删的都删了,重新部署,再重新启动…

报错: java.lang.IllegalStateException: LifecycleProcessor not initialized - call 'refresh' before invoking lifecycle methods via the context: Root WebApplicationContext: startup date [Thu Nov 27 08:53:38 CST 2014]; root of context hierarchy 解决: 先关闭tomc…

spring boot 项目启动报错:原因一般是注入了相同名字的service -- :: com.gxcards.mes.MainWwwWeb: logStartupProfileInfo INFO: No active profile set, falling back to default profiles: default -- :: org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicat…

https://stackoverflow.com/questions/45318618/applicationeventmulticaster-not-initialized-call-refresh-before-multicasting pom.xml 各个组件兼容性问题:升级到最新版本的插件,一般可以解决问题. java.lang.IllegalStateException: ApplicationEventMulticaster not initialized - call 'refr…

vue & lifecycle methods & this bug ES6 Arrow function & this bind bug bad fetchTableData: (url = ``, options = {}) => {} // arrow function & this bind bug! // fetchTableData: (url = ``, options = {}) => { fetchTableData (url = ``, op…

React LifeCycle Methods & re-learning 2019 v16.9.0 https://reactjs.org/docs/react-component.html#the-component-lifecycle static getDerivedStateFromProps() https://reactjs.org/docs/react-component.html#static-getderivedstatefromprops getSnapshotBefore…

MST has a pretty unique feature: It allows you to capture private state on models, and manage this state by using lifecycle hooks. For example by setting up a WebSocket connection and disposing of the connection automatically as soon as the instance…