Error:(xx, xx) java: 常量字符串过长

java 响应码（返回码）总结，报错快速锁定

You have new mail in /var/spool/mail/root关闭邮箱提示 清空内容

mysql配置自动定时清理日志

Error querying database. Cause: java.lang.IndexOutOfBoundsException: Index: 0, Size: 0，SQL: SELECT count(0) FROM xxxx LIMIT ? OFFSET ?

Caused by: java.lang.NoClassDefFoundError: Could not initialize class org.apache.jasper.el.ELContext

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