oracle适配器连接不上的解决办法

SID_LIST_LISTENER = 
 (SID_LIST = 
  (SID_DESC = 
   (SID_NAME = CLRExtProc) 
   (ORACLE_HOME = D:\app\Administrator\product\..\dbhome_) 
   (PROGRAM = extproc) 
   (ENVS = "EXTPROC_DLLS=ONLY:D:\app\Administrator\product\..\dbhome_\bin\oraclr.dll") 
  ) 
 
  (SID_DESC =  
   (GLOBAL_DBNAME = orcl)  
   (ORACLE_HOME = D:\app\Administrator\product\..\dbhome_)  
   (SID_NAME = orcl)  
  )  
 ) 
LISTENER = 
 (DESCRIPTION_LIST = 
  (DESCRIPTION = 
   (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC)) 
   (ADDRESS = (PROTOCOL = TCP)(HOST = localhost)(PORT = )) 
  ) 
 ) 
ADR_BASE_LISTENER = D:\app\Administrator