Elasticsearch容器启动报错：AccessDeniedException[/usr/share/elasticsearch/data/nodes];

Navicat 重装 查找 保存的查询sql文件

ERROR c.alibaba.druid.pool.DruidDataSource - create connection SQLException, url:jdbc:mysql://xxx:3306/xxx?useUnicode=true&characterEncoding=UTF8&allowMultiQueries=true&serverTimezone=Asia/Shanghai, e

JSON.toJSONString() 解析之后 出现"$ref":"$[x].xxx"

Error response from daemon: toomanyrequests: You have reached your pull rate limit. You may increase the limit by authenticating and upgrading: https://www.docker.com/increase-rate-limit

maven依赖 pom.xml中systemPath的用法。org.apache.commons.cli.MissingArgumentException: Missing argument for option: f

Windows的黑窗口（cmd）连接操作Linux服务器 SSH

Error: Failed to download metadata for repo 'appstream': Cannot prepare internal mirrorlist: No URLs in mirrorlistThe command '/bin/sh -c yum -y install vim' returned a non-zero code: 1

nginx启动提示：nginx: [emerg] bind() to 0.0.0.0:8080 failed (98: Address already in use)