oracle - ORA-12505，TNS :listener does not currently know of SID given in connect

Question

我正在使用 JDeveloper，当我尝试与 hr/hr 用户创建数据库连接时，我收到以下消息:

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:
localhost:1521:ORCL

然后我进入命令行并输入 tnsping ORCL

C:\Users\Administrator>tnsping ORCL

TNS Ping Utility for 64-bit Windows: Version 12.2.0.1.0 - Production on 20-FEB-2
018 15:55:23

Copyright (c) 1997, 2016, Oracle.  All rights reserved.

Used parameter files:
C:\app\oracle\virtual\product\12.2.0\dbhome_1\network\admin\sqlnet.ora

Used EZCONNECT adapter to resolve the alias
Attempting to contact (DESCRIPTION=(CONNECT_DATA=(SERVICE_NAME=))(ADDRESS=(PROTO
COL=TCP)(HOST=213.130.77.281)(PORT=1521)))
OK (90 msec)

C:\Users\Administrator>é2@

并检查 Oracle 监听器是否正在运行:

C:\Users\Administrator>lsnrctl status

LSNRCTL for 64-bit Windows: Version 12.2.0.1.0 - Production on 22-FEB-2018 12:34
:05

Copyright (c) 1991, 2016, Oracle.  All rights reserved.

Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=TESTINFRA)(PORT=1521)))
STATUS of the LISTENER
------------------------
Alias                     LISTENER
Version                   TNSLSNR for 64-bit Windows: Version 12.2.0.1.0 - Produ
ction
Start Date                20-FEB-2018 15:02:35
Uptime                    1 days 21 hr. 31 min. 34 sec
Trace Level               off
Security                  ON: Local OS Authentication
SNMP                      OFF
Listener Parameter File   C:\app\oracle\virtual\product\12.2.0\dbhome_1\network\
admin\listener.ora
Listener Log File         C:\app\oracle\virtual\diag\tnslsnr\TESTINFRA\listener\
alert\log.xml
Listening Endpoints Summary...
  (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=TESTINFRA)(PORT=1521)))
  (DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(PIPENAME=\\.\pipe\EXTPROC1521ipc)))
Services Summary...
Service "CLRExtProc" has 1 instance(s).
  Instance "CLRExtProc", status UNKNOWN, has 1 handler(s) for this service...
The command completed successfully

Answer 1

您的监听器服务没有明确声明它在此主机上具有任何 ORCL 数据库 SID。 当您使用 TNSPING 命令检查连接时，您可以使用 Oracle EZCONNECT 适配器来解决此问题，该适配器本身解析所有所需的连接信息，但 JDBC 驱动程序需要在监听器中明确声明 SID 或清除命令才能使用 EZCONNECT 适配器。

有两种方法可以解决这个问题:

1. 打开listener.ora并找到以下几行:

   (SID_LIST =
    (SID_DESC =
     (SID_NAME = CLRExtProc)
     (ORACLE_HOME = C:\app\oracle\virtual\product\12.2.0\dbhome_1)
     (PROGRAM = extproc)
     (ENVS = "EXTPROC_DLLS=ONLY:C:\app\oracle\virtual\product\12.2.0\dbhome_1\bin\oraclr11.dll")
    )
   )
   

   将它们替换为:

   (SID_LIST =
    (SID_DESC =
     (SID_NAME = CLRExtProc)
     (ORACLE_HOME = C:\app\oracle\virtual\product\12.2.0\dbhome_1)
     (PROGRAM = extproc)
     (ENVS = "EXTPROC_DLLS=ONLY:C:\app\oracle\virtual\product\12.2.0\dbhome_1\bin\oraclr11.dll")
    )
    (SID_DESC =
     (SID_NAME = ORCL)
     (ORACLE_HOME = C:\app\oracle\virtual\product\12.2.0\dbhome_1)
     (GLOBAL_DBNAME = ORCL)
    )  
   )
   

   然后使用“lsnrctl stop”和“lsnrctl start”重新启动监听器。此更改将在监听器中注册新的 SID_DESC block 以及数据库 SID 的描述。

2. 更改 JDBC 字符串以通过 EZCONNECT 适配器而不是通过 SID 进行连接。如果您想要确切的答案，请发布您的 JDBC 连接字符串，但总的来说您不应该使用:

   jdbc:oracle:thin:@213.130.77.281:1521:orcl
   

   并使用:

   jdbc:oracle:thin:@//213.130.77.281:1521/orcl
   

   此更改将告诉 JDBC 使用 EZCONNECT 适配器。