OpenSessionInViewFilter与org.springframework.dao.InvalidDataAccessApiUsageException
报错：org.springframework.dao.InvalidDataAccessApiUsageException:Writeoperationsarenotallowedinread-onlymode(FlushMode.NEVER/MANUAL):TurnyourSessionintoFlushMode.C...
Caused by: com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: Query was empty
1、错误描写叙述[ERROR:]2015-07-1520:22:55,599[插入失败]org.hibernate.exception.SQLGrammarException:errorexecutingworkatorg.hibernate.exception.internal.SQLExceptionTypeDel...
weblogic启动报：java.lang.ClassCastException: com.octetstring.vde.backend.BackendRoot
如果在启动weblogic的时候忘记切换用户用root启动一次后，再次用weblogic启动，就会出现如下错误： <Aug7,20083:19:24PMCST><Critical><WebLogicServer><BEA-000362><Serverfai...
java转换编码报错java.lang.IllegalArgumentException: URLDecoder: Illegal hex characters in escape (%) pattern
Exceptioninthread"main"java.lang.IllegalArgumentException:URLDecoder:Illegalhexcharactersinescape(%)pattern-Forinputstring:"左右"atjava.net.URLDecoder.decode%会转换成...
java转换编码报错java.lang.IllegalArgumentException: URLDecoder: Illegal hex characters in escape (%) pattern
Exceptioninthread"main"java.lang.IllegalArgumentException:URLDecoder:Illegalhexcharactersinescape(%)pattern-Forinputstring:"左右"atjava.net.URLDecoder.decode%会转换成...
JedisConnectionException: Failed connecting to host localhost:6379
Exceptioninthread"main"redis.clients.jedis.exceptions.JedisConnectionException:Failedconnectingtohostlocalhost:6379atredis.clients.jedis.Connection....
关于java中Exception异常
异常就是在程序的运行过程中所发生的不正常的事件，它会中断正在运行的程序。异常不是错误程序中关键的位置有异常处理，提高程序的稳定性 Java的异常处理是通过5个关键字来实现的try：尝试，把有可能发生错误的代码放在其中，必须有catch：捕获，当发生异常时执行finally：最终，不管是否有异常都将执行thro...
com.microsoft.sqlserver.jdbc.SQLServerException: Socket closed 或者 该连接已关闭
com.microsoft.sqlserver.jdbc.SQLServerException:Socketclosed或者该连接已关闭解决方案: DBUtil公共方法如下:1packagecom.dao;23importjava.io.IOException;4importjava.io.Inp...