估计是数据库名称错了：jdbc:oracle:thin:@localhost:1521:myora1；myora1应该是数据库SID，查看当前数据库SID的方法：select INSTANCE_NAME from v$instance; (使用system或sys用户查看)
1.常见低级错误 第一个为 端口不对,第二个为ip不对 Connection refused (Connection refused) No route to host (Host unreachable) 2.invalid username/password; logon denied 密码,用户名错误,或者权限问题
Connection refused一般是网络问题，连接不上。还没到数据库验证身份的步骤。
"Connection to host as user localadmin failed: IOException in sending Request :: Connection refused: connect" Both errors are described in document782004.1. (Also the database uptime is not correct, as mentioned in the document). However the solution is not correct. There ...
java链接Oracle时候,连接失败提示。 数据库连接失败! java.sql.SQLException: Listener refused the connection with the following error: ORA-12505, TNS:listener does not currently know of SID given in connect descriptor The Connection descriptor used by the client was:...
内容提示: Io 异常: Connectionrefused(DESCRIPTION=(TMP=)(VSNNUM=186646784)(ERR=12505)(ERROR_STACK=(ERROR=(CODE=12505)(EMFI=4)))at oracle.jdbc.dbaccess.DBError.throwSqlException(DBError.java:189)at oracle.jdbc.dbaccess.DBError.throwSqlException(DBError.java:231)at oracle.jdbc.dbaccess.DBError.th...
系统标签: oracle 解决办法 java adminstrator dbhome applicationfi Io异常:Connectionrefused(DESCRIPTION=(TMP=)(VSNNUM=186646784)(ERR=12505)(ERROR_STACK=(ERROR=(CODE=12505)(EMFI=4)))atoracle.jdbc.dbaccess.DBError.throwSqlException(DBError.java:189)atoracle.jdbc.dbaccess.DBError.throwSqlException(DBErro...
java连接oracle时12505错误解决办法 Io 异常: Connection refused(DESCRIPTION=(TMP=)(VSNNUM=186646784)(ERR=12505)(ERROR_STACK=(ERROR=(CODE=12505)(EMFI=4))) at oracle.jdbc.dbaccess.DBError.throwSqlException(DBError.java:189) at oracle.jdbc.dbaccess.DBError.throwSqlException(DBError.java:231)...
对于java连接oracle服务器,出现问题大多数问题都是网络连接问题(当然没有导入jar包的也会出问题)。 常见问题: Listener refused the connection with the following error: ORA-12505, TNS:listener does not currently know of SID given in connect descriptor ...
你这个是连接数据库异常，需要从几个方面检查：1、数据库的IP地址是否正确？2、数据库的SID是否正确？3、数据库的用户名/密码是否正确？补充，可以通过以下语句察看当前数据库的SID：select INSTANCE_NAME from v$instance; --查看当前数据的库sid ...