装ElasticSearch7.5遇到两个警告:uture versions of Elasticsearch will require Java 11; your Java version from... OpenJDK 64-Bit Server VM warning Option UseConcMarkSweepGC was deprecated in version 9.0 and will likely be removed in a future release.。

linux中国项目编译。

npm install 失败

maven打包报错：Fatal Error Unable to find package java.lang in classpath or bootclasspath

linux安装nvm。

MongoDB基本操作。

MongoDB的备份还原。

基于docker安装MongoDB。

腾讯云MySQL物理备份数据还原,备份文件xb类型。

Nginx刷新页面报404错误