你装oracle的时候有没有装数据库实例？没有的话：
1、cmd->输入dbca去创建一个实例；
2、cmd->输入netca去添加一个监听；（打开之后默认点下去直到配置完成即可）

ORACL安装成功后，只能本地访问，要远程访问需要修改listener文件，添加以下红色内容：

# listener.ora Network Configuration File: H:\app\Administrator\product\11.2.0\dbhome_1\NETWORK\ADMIN\listener.ora
# Generated by Oracle configuration tools.

SID_LIST_LISTENER =
  (SID_LIST =
    (SID_DESC =
      (SID_NAME = CLRExtProc)
      (ORACLE_HOME = H:\app\Administrator\product\11.2.0\dbhome_1)
      (PROGRAM = extproc)
      (ENVS = "EXTPROC_DLLS=ONLY:H:\app\Administrator\product\11.2.0\dbhome_1\bin\oraclr11.dll")
    )
   (SID_DESC =
      (GLOBAL_DBNAME = ORCL)
      (ORACLE_HOME = H:\app\Administrator\product\11.2.0\dbhome_1)
      (SID_NAME = ORCL)
    )
  ) (SID_DESC =
      (GLOBAL_DBNAME = ORCL)
      (ORACLE_HOME = H:\app\Administrator\product\11.2.0\dbhome_1)
      (SID_NAME = ORCL)
    )
  )

LISTENER =
  (DESCRIPTION_LIST =
    (DESCRIPTION =
      (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1521))
    )
    (DESCRIPTION =
      (ADDRESS = (PROTOCOL = TCP)(HOST = localhost)(PORT = 1521))
    )
    (DESCRIPTION =
      (ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.2.135)(PORT = 1521))
    )
  )    (DESCRIPTION =
      (ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.2.135)(PORT = 1521))
    )
  )

ADR_BASE_LISTENER = H:\app\Administrator