plsql developer 數據庫鏈接：找不到監聽器（no listener）

查看listener.ora 是否配置到本地：app LISTENER =   (DESCRIPTION =     (ADDRESS = (PROTOCOL = TCP)(HOST = computer name)(PORT = default 1521))   )spa ADR_BASE_LISTENER = C:\app\username\product\11.1.0\client_1\lo

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