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springboot项目启动报java.lang.NoClassDefFoundError: javax/servlet/Filte

解决: 新设备的idea中启动配置中需要勾选引入“provided”依赖,如下图。

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#java#spring boot#servlet
HikariPool-2 - Failed to validate connection com.mysql.jdbc.JDBC4Connection@143ab607 (No operations

HikariPool-2 - Failed to validate connection com.mysql.jdbc.JDBC4Connection@143ab607 (No operations allowed after connection closed.). Possibly consider using a shorter maxLifetime value

#mysql#数据库#database
HikariPool-2 - Failed to validate connection com.mysql.jdbc.JDBC4Connection@143ab607 (No operations

HikariPool-2 - Failed to validate connection com.mysql.jdbc.JDBC4Connection@143ab607 (No operations allowed after connection closed.). Possibly consider using a shorter maxLifetime value

#mysql#数据库#database
Macbook idea:No compiler is provided in this environment. Perhaps you are running on a JRE...

问题:MacBook ,idea 新构建maven项目,执行mvncist 构建,报No compiler is provided in this environment. Perhaps you are running on a JRE...错误解决:1: 执行以下命令找到本地 Java 的jdk安装目录# 注意V是大写/usr/libexec/java_home -V得到jdk路径:/Libr

#maven#java
解决MacBook无法访问github问题

解决MacBook无法访问github的问题

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#github
window7下部署Dubbo,zookeeper

window7下部署Dubbo,zookeeper

#dubbo#zookeeper
eclipse maven导入项目,报org.eclipse.wst.validation" has been removed

这个问题,在网上找了一下,搜出来的大都是同一篇内容,有一个网友说,只要去删除..\workspace\.metadata\.plugins\org.eclipse.core.runtime\.settings路径下的org.eclipse.wst.validation.prefs文件即可。但我在我的eclipse的工作空间下找不到这个文件,猜测可能是同事给我的这个eclipse已经删除

#eclipse#maven
解决官方 kafka-server-stop.sh 无法关闭Kafka服务

直接上解决方案截图(拷贝命令见截图下方):命令1:PIDS=$(jps -lm | grep -i 'kafka.Kafka' | awk '{print $1}')命令2:kill -s KILL $PIDS参考链接:https://blog.csdn.net/qq_37714755/article/details/104912144

到底了