摘要： PL/SQL远程连接oracle服务器出现ora-12541 TNS：无监听出现12541错误(无监听程序)时可修改app\user\product\11.1.0\db_1\network\admin\listener.ora文件 LISTENER = (DESCRIPTION_LIST = (DESCRIPTION = (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1)) (ADDRESS = (PROTOCOL = TCP)(HOST = localhost)(PORT = 1521)) ) )将localhost改为IP地址或者主机名同时更改客户端ap 阅读全文