今天在使用springboot整合SSM的时候,配置好以后启动项目,报了一个这样的异常 java.sql.SQLNonTransientConnectionException: Cannot load connection class because of underlying exception: com.mysql.cj.exceptions.WrongArgumentException: Malformed database URL, failed to parse the connect…
连接mysql库报的异常信息: org.springframework.transaction.CannotCreateTransactionException: Could not open JDBC Connection for transaction; nested exception is org.apache.commons.dbcp.SQLNestedException: Cannot create PoolableConnectionFactory (Cannot load con…
我在update数据库的时候出现的死锁 数据库表死锁 Exception: com.mysql.jdbc.exceptions.jdbc4.MySQLTransactionRollbackException: Deadlock found when trying to get lock; try restarting transaction 这是在网上看到的文章:: 由于InnoDB预设是Row-Level Lock,所以只有「明确」的指定主键,MySQL才会执行Row lock (只锁住被选取…
我的hadoop启动后,各个节点都正常,但是无法查看hdfs目录,错误提示 Bad connection to FS. command aborted. 查了下网上的解决办法,主要是删除tmp下的所有文件,然后格式化就可以了. 原文:http://www.tuicool.com/articles/J7R3mei 问题目录表: Bad connection to FS. command aborted. exception: Call to localhost/127.0.0.1:8888 fa…
将项目从springBoot1.x升级到springBoot2.x,启动报错: java.sql.SQLNonTransientConnectionException: Cannot load connection class because of underlying exception: com.mysql.cj.exceptions.WrongArgumentException: Malformed database URL, failed to parse the connection…
最近在用一个MySQL的Java连接池的过程中,连接一晚上不释放,第二天就会造成超时的错误,查了一下原因,原来是因为MySQL默认的空闲等待时间是8个小时,一旦空闲超过8个小时,就会抛出异常.异常文本如下: com.mysql.jdbc.CommunicationsException MESSAGE: Communications link failure due to underlying exception: ** BEGIN NESTED EXCEPTION ** java.net.Soc…
最近的一个项目在Hibernate使用C3P0的连接池,数据库为Mysql.开发测试没有问题,在运行中每个一段长的空闲时间就出现异常: java 代码 org.hibernate.exception.JDBCConnectionException: could not execute query at org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.java:74) at org.hibernate.exce…
报错信息:Could not open JDBC Connection for transaction; nested exception is org.apache.commons.dbcp.SQLNestedException: Cannot create PoolableConnectionFactory (Could not create connection to database server.) 问题来源mysql-connecter-java 版本过低 如果你mysql的版本是m…
1.问题目录表: Error代码 failed on connection exception: java.net.ConnectException: Connection refused 3. : no further information 错误提示"Bad connection to FS. command aborted. exception: Call tolocalhost/127.0.0.1:88 88failed on connection excepti…
ERROR - No operations allowed after connection closed. 2011-12-07 11:36:09 - ERROR - query failed org.hibernate.exception.JDBCConnectionException: could not execute query at org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.java:74)…
Error 1 Uncaught exception (see the 'inner exception' below) has suspended an instance of service 'JD.EAI.POCheck(e8eb59a4-87f2-1933-5d4f-3bef0d073ae9)'. The service instance will remain suspended until administratively resumed or terminated. If resu…
helloword程序,所有java学习人员人生第一个程序,哎妈,基础太差,出错 public class Helloword{ public Helloword() { public static void main (String[] args) { System.out.println ("111111111");//输入out,然后按tab键,就会输入System.out.println } } } 第1个错: Failed to establish a connection…
docker中安装centos无法使用systemctl命令管理进程,报以下错误: Failed to get D-Bus connection: Operation not permitted 原因: 需要启动systemd进程 需要特权 解决方法: docker run -tdi --privileged centos init…
1.错误描述 com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxError Exception:You have an error in your SQL syntax check the manual that corresponds to your MySQL server version for the right syntax to use near 'notnull,user_name varchar(255) )' at line 1 2.错误原因…
Issue: When you execute systemctl command in docker container, you may receive following error. Error: Failed to get D-Bus connection: No connection to service Solution: docker run --privileged -ti centos:centos7 /usr/sbin/init…
com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: No operations allowed after connection closed. at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unk…
HTTPConnectionPool(host='xx.xx.xx.xx', port=xx): Max retries exceeded with url:(Caused by ConnectTimeoutError(<urllib3.connection.HTTPConnection object at 0x0000015A25025EB8>, 'Connection to xx.xx.xx.xx timed out. (connect timeout=10)')) 网查说是http连接太…
一.异常信息 org.springframework.web.multipart.MultipartException: Failed to parse multipart servlet request; nested exception is java.io.IOException: The temporary upload location [/tmp/tomcat.1428942566812653608.8090/work/Tomcat/localhost/ROOT] is not va…
