现象: 在springboot的定时器轮询去下载ftp文件时,报以下错误: org.apache.commons.net.ftp.FTPConnectionClosedException: FTP response 421 received. Server closed connection. at org.apache.commons.net.ftp.FTP.__getReply(FTP.java:367) at org.apache.commons.net.ftp.FTP.__getRepl…
A SqlConnection consists of two parts: the public instance that your code interacts with (the outer connection) and a hidden connection that represents an actual server connection (the inner connection). When you call the Open method on the outer con…
昨天使用Navicat for MySQL导入MySQL数据库的时候,出现了一个严重的错误,Lost connection to MySQL server during query,字面意思就是在查询过程中丢失连接到MySQL服务器. [Msg] Decompressing... [Msg] Table Created: wp_wiki_copy [Msg] Importing Data... [Msg] 2013 - Lost connection to MySQL server during…
使用命令:rndc -s 192.168.1.2 status 连接远程的bind 搭建的DNS服务器时出现下面的错误: rndc: connection to remote host closed This may indicate that * the remote server is using an older version of the command protocol, * this host is not authorized to connect, * the clocks…
使用Navicat 导入MySQL数据库的时候,出现了一个严重的错误,Lost connection to MySQL server during query,字面意思就是在查询过程中丢失连接到MySQL服务器. [Msg] Decompressing... [Msg] Table Created: wp_wiki_copy [Msg] Importing Data... [Msg] 2013 - Lost connection to MySQL server during query [Msg…
异常名称 //数据源拒绝从服务器建立连接.消息:"连接太多" com.MySQL.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: Data source rejected establishment of connection, message from server: "Too many connections" 原因一 MYSQL安装目录打开MY.INI. 找到max_connections…
