ORA-12505 connection refuse 解决办法及总结
经过debug和查找相关的资料发现问题原因如下:jdbc连接数据库的时候,需要使用数据库的sid_name,而不是数据库的services_name而
Oracle
问题描述:
今天使用jdbc连接oracle 10.2.0.1.0 数据库的时候出现了下列错误:
Connection refused(DESCRIPTION=(TMP=)(VSNNUM=153093120)(ERR=12505)(ERROR_STACK=(ERROR=(CODE=12505)(EMFI=4))))
而直接通过plsql可以正常连接数据库,或者可以通过sqlplus 连接数据库
经过debug和查找相关的资料发现问题原因如下:
jdbc连接数据库的时候,需要使用数据库的sid_name,而不是数据库的services_name
而使用plsql连接数据库的时候,只需要数据库的services_name即可,所以修改连接字符串中的services_name 为sid_name
附:
察看数据库中当前的sid:
SQL> select INSTANCE_NAME from v$instance;
INSTANCE_NAME
----------------
hasl
这个问题以前遇见过,,还找到解决方法,但是今天又被折腾了半天,最后发现以前还在本地做过记录.................
同一个问题竟然碰到两次,还同样被纠结了好几个小时。
以后尽量避免类似错误。

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