springBoot required a bean of type org.springframework.data.redis.core.RedisTemplate
springBoot启动报错： requiredabeanoftype'org.springframework.data.redis.core.RedisTemplate' 产生这个问题的原因是：系统启动的时候没有扫描到这个RedisT...
com.alibaba.druid.pool.DruidDataSource : create connection SQLException, url: jdbc:mysql:/解决方法详解
com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException:Couldnotcreateconnectiontodatabaseserver.具体错误信息如下：2021-01-0420:20:09.071ERROR12300---[eate-...
com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: Data source rejected establishment of connection, message from server: Too many connections
最简单的办法是因为你的my.ini中设定的并发连接数太少或者系统繁忙导致连接数被占满解决方式：打开MySQL安装目录打开MY.INI找到max_connections默认是100.--实例WINDOWS解决mysql Errno.:1040错误XXXXinfo:CannotconnecttoMySQLserv...
c# winform 开启双缓冲，解决dataguidview卡顿
窗体的构造函数中，开启窗体的双缓冲publicssss(){//设置窗体的双缓冲this.SetStyle(ControlStyles.OptimizedDoubleBuffer|ControlStyles.ResizeRedraw|ControlStyles.AllPaintingInWmPaint,true);th...
dataGridView双缓冲双buffer代码
在form_load方法中添加一下代码 双缓冲：Typetype=dataGridView_items.GetType();System.Reflection.PropertyInfopi=type.GetProperty("DoubleBuffered",System.Reflection.BindingF...
dataset导入导出xml
dataset导入xml DataSetdt=BLL.TestClass.Getusers();dt.WriteXml("d:/xml.xml",XmlWriteMode.WriteSchema);xml导入dataset DataSetdsNew=newDataSet();ds...
datax中sqlserver 数据同步到sqlserver
{"job":{"setting":{"speed":{"channel":5}},"content":[{"reader":{"name":"sqlserverreader","parameter":{"username":"xx","password":"xx","where":"","connection":[{...
ORA-38734: Flashback log is inconsistent; belongs to another database.
文档解释ORA-38734:Flashbacklogisinconsistent;belongstoanotherdatabase.Cause:ThedatabaseIDintheflashbackdatabaselogfiledidnotmatchthedatabaseIDinthecontrolfile.Actio...
ORA-29307: datafile string error, string
文档解释ORA-29307:datafilestringerror,stringCause:Thedatafileisnotreadyfortablespacepoint-in-timerecovery.Action:Checkthecorrecttablespacepoint-in-timerecoveryproce...
ORA-28045: SSL authentication between database and OID failed
文档解释ORA-28045:SSLauthenticationbetweendatabaseandOIDfailedCause:ServerfailedtoauthenticateitselftotheDirectory.Action:Makesurethesqlnet.orausedispointingtothewa...