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找到listener.ora文件：我的Oracle是安装在F盘，

路径为：F:\oracle\product\10.2.0\db_1\network\admin\listener.ora  修改前的配置如下：

# listener.ora Network Configuration File: F:\oracle\product\10.2.0\db_1\network\admin\listener.ora

# Generated by Oracle configuration tools.  

SID_LIST_LISTENER =  

(SID_LIST =     (SID_DESC =       

   (SID_NAME = PLSExtProc)       

    (ORACLE_HOME = F:\oracle\product\10.2.0\db_1)      

(PROGRAM = extproc)     )   )  

LISTENER =    (DESCRIPTION_LIST =    

(DESCRIPTION =       

 (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1))       

(ADDRESS = (PROTOCOL = TCP)(HOST = localhost)(PORT = 1521))     ) ) 

修改后的配置如下：

# listener.ora Network Configuration File: F:\oracle\product\10.2.0\db_1\network\admin\listener.ora

# Generated by Oracle configuration tools. 

SID_LIST_LISTENER =   (SID_LIST =    

 (SID_DESC =        (SID_NAME = PLSExtProc)       

 (ORACLE_HOME = F:\oracle\product\10.2.0\db_1)      

(PROGRAM = extproc)     )  

    (SID_DESC =              

 (GLOBAL_DBNAME = ORCL)        

 (ORACLE_HOME = F:\oracle\product\10.2.0\db_1)       

(SID_NAME = ORCL)       )

)  

 LISTENER =    (DESCRIPTION_LIST =    

 (DESCRIPTION =        (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1))      

  (ADDRESS = (PROTOCOL = TCP)(HOST = 127.0.0.1)(PORT = 1521))     )   ) 

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