具体信息如下：java.sql.SQLException:Listener refused the connection

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具体信息如下：
java.sql.SQLException:Listener refused the connection with the following error:ORA—12505,TNS：Listener dose not currentlly kown of SID given in connect descriptor the connection description used by client was 127.0.0.1:1521:yxerp
我是JAVA连接数据库的请问要导入哪个JAVA包,怎么导?

看这个
SID不正确,跟包没关系

具体信息如下：java.sql.SQLException:Listener refused the connection java.sql.SQLException: Listener refused the connection with java.sql.SQLException:Listener refused the connection with t 打不开nc,提示信息是java.sql.SQLException:Listener refused the connec java 连接oracle报错java.sql.SQLException: Listener refused the c myauthuser:Listener refused the connection with the followin java.sql.SQLException:The transaction is no longer active-st java.sql.SQLException:Couldn't perform the operation prepare java 中import java.sql.Connection 报错：The import java.sql.Conn 求 java java.sql.SQLException:The Network Adapter could not e java.sql.SQLException:ORA-00917:缺失逗号 java.sql.SQLException:ORA-28000:the account is locked?怎么解决