1、修改配置文件listener.ora将HOST=你自己的主机名LISTENER =  (DESCRIPTION_LIST =    (DESCRIPTION =      (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1))      (ADDRESS = (PROTOCOL = TCP)(HOST = sweetboy_pc)(PORT = 1521))    )  )文件所在路径：C:\oracle\product\10.2.0\db_1\NETWORK\ADMIN2、检查监听设置，重新启动监听服务。