無法在Linux Mint中連接到Oracle 11g XE Apex Web界面

Question

我已經在Linux Mint 17.3系統上為Linux x64安裝了Oracle數據庫Express Edition 11g第2版。 安裝過程成功。 我能夠使用sqlplus連接到數據庫，創建新用戶，執行命令等。在安裝期間配置數據庫時，我使用了默認端口，例如8080和1521。但是我無法連接到APEX網址，即localhost：8080 / apex / f？p = 4950來自我的系統。 在過去的幾個小時中，我一直在尋找解決方案，但找不到任何地方。

lsnrctl命令的輸出如下：

LSNRCTL for Linux: Version 11.2.0.2.0 - Production on 06-MAR-2016 10:11:05

Copyright (c) 1991, 2011, Oracle.  All rights reserved.

Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=EXTPROC_FOR_XE)))
STATUS of the LISTENER
------------------------
Alias                     LISTENER
Version                   TNSLSNR for Linux: Version 11.2.0.2.0 - Production
Start Date                06-MAR-2016 08:58:41
Uptime                    0 days 1 hr. 12 min. 24 sec
Trace Level               off
Security                  ON: Local OS Authentication
SNMP                      OFF
Default Service           XE
Listener Parameter File   /u01/app/oracle/product/11.2.0/xe/network/admin/listener.ora
Listener Log File         /u01/app/oracle/diag/tnslsnr/iamharish15-HP-15-Notebook-PC/listener/alert/log.xml
Listening Endpoints Summary...
  (DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=EXTPROC_FOR_XE)))
  (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=iamharish15-HP-15-Notebook-PC)(PORT=1521)))
Services Summary...
Service "PLSExtProc" has 1 instance(s).
  Instance "PLSExtProc", status UNKNOWN, has 1 handler(s) for this service...
The command completed successfully

我沒有修改任何tnsnames.ora或listener.ora。 這些文件的內容如下： listener.ora

# listener.ora Network Configuration File:

SID_LIST_LISTENER =
  (SID_LIST =
    (SID_DESC =
      (SID_NAME = PLSExtProc)
      (ORACLE_HOME = /u01/app/oracle/product/11.2.0/xe)
      (PROGRAM = extproc)
    )
  )

LISTENER =
  (DESCRIPTION_LIST =
    (DESCRIPTION =
      (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC_FOR_XE))
      (ADDRESS = (PROTOCOL = TCP)(HOST = iamharish15-HP-15-Notebook-PC)(PORT = 1521))
    )
  )

DEFAULT_SERVICE_LISTENER = (XE)

tnsnames.ora

# tnsnames.ora Network Configuration File:

XE =
  (DESCRIPTION =
    (ADDRESS = (PROTOCOL = TCP)(HOST = iamharish15-HP-15-Notebook-PC)(PORT = 1521))
    (CONNECT_DATA =
      (SERVER = DEDICATED)
      (SERVICE_NAME = XE)
    )
  )

EXTPROC_CONNECTION_DATA =
  (DESCRIPTION =
    (ADDRESS_LIST =
      (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC_FOR_XE))
    )
    (CONNECT_DATA =
      (SID = PLSExtProc)
      (PRESENTATION = RO)
    )
  )

當我啟動SQL命令行並使用connect to XE登錄時，如下所示：

SQL> connect username/password@XE
ERROR:
ORA-12514: TNS:listener does not currently know of service requested in connect
descriptor

但是通常從終端上，如果我使用sqlplus username/password連接，則可以成功連接。 我認為我必須要運行XE和XEXDB服務，但到目前為止我還無法運行。 在這方面的任何幫助將非常有幫助。 提前致謝。

Answer 1

經過數小時的“搜索”和一些“討價還價”，我終於可以解決我的問題。 這是我為解決問題所做的工作：

1. alter system set local_listener = '(ADDRESS=(PROTOCOL=TCP)(HOST=iamharish15-HP-15-Notebook-PC)(PORT=1521))' scope = both;

步驟1解決了XE和XEXDB服務未顯示問題，此后，當我以lsnrctl status運行時，XE和XEXDB服務均顯示了，我可以使用帶username/password@XE命令的命令行SQL工具登錄。 但是APEX Web界面仍然不可用。

2. 然后，我更新了tnsnames.ora和listener.ora文件，使其具有XEXDB條目和Presentation = HTTP行的description條目。

tnsnames.ora

# tnsnames.ora Network Configuration File:

XE =
  (DESCRIPTION =
    (ADDRESS_LIST = 
      (ADDRESS = (PROTOCOL = TCP)(HOST = iamharish15-HP-15-Notebook-PC)(PORT = 1521))
    )
    (CONNECT_DATA =
      (SERVER = DEDICATED)
      (SERVICE_NAME = XE)
    )
  )

XEXDB =
  (DESCRIPTION =
    (ADDRESS_LIST = 
      (ADDRESS = (PROTOCOL = TCP)(HOST = 127.0.0.1)(PORT = 8080))
    )
    (CONNECT_DATA =
      (SERVER = DEDICATED)
      (SERVICE_NAME = XEXDB)
    )
  )

EXTPROC_CONNECTION_DATA =
  (DESCRIPTION =
    (ADDRESS_LIST =
      (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC_FOR_XE))
    )
    (CONNECT_DATA =
      (SID = PLSExtProc)
      (PRESENTATION = RO)
    )
  )

listener.ora

# listener.ora Network Configuration File:

SID_LIST_LISTENER =
  (SID_LIST =
    (SID_DESC =
      (SID_NAME = PLSExtProc)
      (ORACLE_HOME = /u01/app/oracle/product/11.2.0/xe)
      (PROGRAM = extproc)
    )
  )

LISTENER =
  (DESCRIPTION_LIST =
    (DESCRIPTION =
      (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC_FOR_XE))
      (ADDRESS = (PROTOCOL = TCP)(HOST = iamharish15-HP-15-Notebook-PC)(PORT = 1521))
    )
    (DESCRIPTION = 
      (ADDRESS = (PROTOCOL = tcp)(HOST = 127.0.0.1)(PORT = 8080))(Presentation = HTTP)(Session = RAW)
    )
  )

DEFAULT_SERVICE_LISTENER = (XE)

之后，我使用以下命令重新加載了它們的值：

/etc/init.d/oracle-xe force-reload

這樣就解決了問題，我可以連接到APEX Web界面並創建新的工作區，用戶等。