访问局域网Oracle数据库

from http://blog.sina.com.cn/s/blog_510fdc8b0100w23j.html

现在有两台电脑 A 和 B  ;

电脑 A 上有 Oracle11G服务端; ip地址 192.168.1.120; 端口1521 ;

 

电脑 A 本机连接数据库 正常,可以登录及操作等 ;

 

 

电脑 B 配置访问电脑 A 时报错:The Network Adapter could not establish the connection

 

报这种错的话,网上有说法, 说是防火墙没关,或者是 服务端服务没启好等..

 

按本人的实际情况解说:

 

因为oracle服务端访问配置是需要配置访问地址监听的,具体见Oracle安装路径:

% product\11.2.0\dbhome_1\NETWORK\ADMIN\listener.ora

 

这个是我的oracle监听服务的配置文件,内容为

# listener.ora Network Configuration File: E:\app\rcfeng\product\11.2.0\dbhome_1\network\admin\listener.ora
# Generated by Oracle configuration tools.

SID_LIST_LISTENER =
  (SID_LIST =
    (SID_DESC =
      (SID_NAME = CLRExtProc)
      (ORACLE_HOME = E:\app\rcfeng\product\11.2.0\dbhome_1)
      (PROGRAM = extproc)
      (ENVS = "EXTPROC_DLLS=ONLY:E:\app\rcfeng\product\11.2.0\dbhome_1\bin\oraclr11.dll")
    )
  )

LISTENER =
  (DESCRIPTION_LIST =
    (DESCRIPTION =
      (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1521))
      (ADDRESS = (PROTOCOL = TCP)(HOST = localhost)(PORT = 1521))
    )
  )

ADR_BASE_LISTENER = E:\app\rcfeng

 

 

可以看到有LISTENER 配置

 

其中

(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1521))
(ADDRESS = (PROTOCOL = TCP)(HOST = localhost)(PORT = 1521))

是指监听的地址;

由于本机的服务端一般都是自己做测试的时候访问 ;

而为什么我们写localhost:1521 的时候可以访问到,就是因为

(ADDRESS = (PROTOCOL = TCP)(HOST = localhost)(PORT = 1521))
这一句,我们监听了localhost,所以可以访问到..

 

如果需要被局域网访问的话,我们只需要加入监听访问地址就可以了,如:

(ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.1.120)(PORT = 1521))

 

这样局域网的机子就可以访问我们的oracle服务了..完整内容为:

LISTENER =
  (DESCRIPTION_LIST =
    (DESCRIPTION =
      (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1521))
      (ADDRESS = (PROTOCOL = TCP)(HOST = localhost)(PORT = 1521))

      (ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.1.120)(PORT = 1521))
    )
  )

 

访问路径为: