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ÎļþµØÖ·£ºD:\Oracle10g\network\admin\tnsnames.ora
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# tnsnames.ora Network Configuration File: D:\Oracle10g\network\admin\tnsnames.ora
# Generated by Oracle configuration tools.
--±¾»úÊý¾Ý¿â
ORACLE10 =
(DESCRIPTION =
    (ADDRESS = (PROTOCOL = TCP)(HOST = PC-200903121354)(PORT = 1521))
    (CONNECT_DATA =
      (SERVER = DEDICATED)
      (SERVICE_NAME = oracle10)
    )
)
EXTPROC_CONNECTION_DATA =
(DESCRIPTION =
    (ADDRESS_LIST =
      (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1))
    )
    (CONNECT_DATA =
      (SID = PLSExtProc)
      (PRESENTATION = RO)
    )
)
--Ô¶³ÌÊý¾Ý¿â
ngprm = --ngprmÎªÍøÂç·þÎñÃû£¬ÔÚplsqlÖÐÁ¬½ÓÊý¾Ý¿âµÄÃû×Ö
(DESCRIPTION =
    (ADDRESS = (PROTOCOL = TCP)(HOST = 130.34.3.21)(PORT = 1521)) --·þÎñÆ÷µØÖ·ºÍ¶Ë¿ÚºÅ
    (CONNECT_DATA =
      (SERVER = DEDICATED)
      (SERVICE_NAME = ngprm) --Êý¾Ý¿âµÄÃû×Ö
    )
)
¾ÙÀý£ºÐÞ¸ÄD:\Oracle10g\network\admin\tnsnames.oraÎļþ£¬Ôö¼ÓÈçÏ¶Σº
CWGK68 =
  (DESCRIPTION =
    (ADDRESS_LIST =
      (ADDRESS = (PROTOCOL = TCP)(HOST = dl_s_15_vip)(PORT = 1521))
    )
    (CONNECT_DATA =
      (SERVICE_NAME = cwgk)
    )
  )
ÁíÍâÔÚC:\WINDOWS\system32\drivers\etc\hostsÎļþÖÐÔö¼Ó¡£
10.1.30.66      dl_s_15
10.1.30.68  &


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   Class.forName("oracle.jdbc.driver.OracleDriver");
   Connection conn = DriverManager.getConnection(
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