Oracle12c 通過IP訪問數據出現ORA-12505錯誤

1、聯網設置是否正確 2、服務器監聽是否開啟 3、tnslisteners中是serivce_name(/)還是sid_name(:)

1、新裝的oracle12c 只能通過localhost來連接，通過Net Manager配置之后，如下圖所示：

2、然后重啟以下服務，如下圖所示：  

3、使用sql developer仍然無法通過IP連接，出現：狀態: 失敗 -測試失敗: Listener refused the connection with the following error: ORA-12505, TNS:listener does not currently know of SID given in connect descriptor，如下圖所示：

4、編輯D:\InstallFile\Oracle12\app\Administrator\product\12.1.0\dbhome_1\NETWORK\ADMIN目錄下的listener.ora文件，然后將：

# listener.ora Network Configuration File: D:\InstallFile\Oracle12\app\Administrator\product\12.1.0\dbhome_1\NETWORK\ADMIN\listener.ora # Generated by Oracle configuration tools.
SID_LIST_LISTENER =   (SID_LIST =     (SID_DESC =       (SID_NAME = CLRExtProc)       (ORACLE_HOME = D:\InstallFile\Oracle12\app\Administrator\product\12.1.0\dbhome_1)       (PROGRAM = extproc)       (ENVS = "EXTPROC_DLLS=ONLY:D:\InstallFile\Oracle12\app\Administrator\product\12.1.0\dbhome_1\bin\oraclr12.dll")     )     )   )
LISTENER =   (DESCRIPTION_LIST =     (DESCRIPTION =       (ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.0.33)(PORT = 1521))     )     (DESCRIPTION =       (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1521))     )   )
ADR_BASE_LISTENER = D:\InstallFile\Oracle12\app\Administrator\product\12.1.0\dbhome_1\log

更改為（紅色字體部分）：

# listener.ora Network Configuration File: D:\InstallFile\Oracle12\app\Administrator\product\12.1.0\dbhome_1\NETWORK\ADMIN\listener.ora # Generated by Oracle configuration tools.
SID_LIST_LISTENER =   (SID_LIST =     (SID_DESC =       (SID_NAME = CLRExtProc)       (ORACLE_HOME = D:\InstallFile\Oracle12\app\Administrator\product\12.1.0\dbhome_1)       (PROGRAM = extproc)       (ENVS = "EXTPROC_DLLS=ONLY:D:\InstallFile\Oracle12\app\Administrator\product\12.1.0\dbhome_1\bin\oraclr12.dll")     ) (SID_DESC =       (GLOBAL_DBNAME = ORCL)       (ORACLE_HOME = D:\InstallFile\Oracle12\app\Administrator\product\12.1.0\dbhome_1)       (sid_name = ORCL)     )   )
LISTENER =   (DESCRIPTION_LIST =     (DESCRIPTION =       (ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.0.33)(PORT = 1521))     )     (DESCRIPTION =       (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1521))     )   )
ADR_BASE_LISTENER = D:\InstallFile\Oracle12\app\Administrator\product\12.1.0\dbhome_1\log

保存之后重啟第2步的兩個服務。

5、重新進行測試，測試成功，如下圖所示：

注意：此是連接數據庫orcl的配置，如果是新建測數據庫要重新設置。