Oracle无法通过IP连接数据库

1、问题描述：Oracle无法通过IP连接数据库

2、解决方法

打开${ORACLE_HOME}\product\11.2.0\dbhome_1\network\admin目录

1. 修改tnsnames.ora文件，将HOST值修改为计算机名（控制面板>系统和安全>系统，进行查看）

LISTENER_ORCL =
(ADDRESS = (PROTOCOL = TCP)(HOST = 计算机名)(PORT = 1521))

ORACLR_CONNECTION_DATA =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1521))
)
(CONNECT_DATA =
(SID = CLRExtProc)
(PRESENTATION = RO)
)
)

ORCL =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = 计算机名)(PORT = 1521))
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = orcl)
)
)

2. 修改listener.ora文件的HOST为计算机名

LISTENER =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1521))
(ADDRESS = (PROTOCOL = TCP)(HOST = 计算机名)(PORT = 1521))
)
)