Oracle数据库无法使用localhost和127.0.0.1访问
最近学习Oracle数据库，在虚拟机中的Windows XP SP3系统中安装了Oracle 10g（版本：Oracle_10g_10.2.0.1_win32）。
最近学习Oracle数据库，在虚拟机中的Windows XP SP3系统中安装了Oracle 10g（版本：Oracle_10g_10.2.0.1_win32）。
安装完成后，使用PL/SQL Developer访问Oracle数据库，发现只能使用IP地址访问（192.168.135.90），而无法使用localhost和127.0.0.1访问。
经过研究，发现这是LISTENER配置问题导致的。
解决办法：配置LISTENER时，使用主机名，而不是IP地址或localhost。
解决后的LISTENER配置如下图所示：
打开Oracle的Net Manager工具，配置LISTENER：
LISTENER配置中的主机填写本机的主机名：我这里是zht-ylmf
主机名可以再cmd命令行中通过>hostname 命令获取到：
配置好LISTENER之后，在配置命名服务，命名服务中的主机名填写：localhost、127.0.0.1 或者 192.168.135.90 ，，再用PL/SQL Developer就都能访问数据库了。
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