Cannot connect problems after installing Oracle

Before the installation of Oracle, but also deliberately found a few blog and Baidu experience to see, because know that Oracle can only install once, if not installed, OK, the basic exclusion of the installation of the possible (installation of residual files can not be unloaded)

However, my problem is not here, the installation is smooth, one hours or so installed (of course, in the virtual machine ^_^)

And then...

Open your own SQL developer, enter the connection

can be connected, but not with local IP (192.168.1.103)

Open Oracle's Net Manager

Modify listener, change to local IP.

Then, localhost cannot connect.

Final Solution:

1. Open Oracle's net Configuration Assistant

2. Select Listener Configuration Click Next

3. Delete, click Next

4. Click Next (Know to exit the first step interface)

5. Select Listener Configuration Click Next

6. ADD, click Next

(Lose the password, the other default is good, restart the Oracle Listener,ip and localhost can be connected)

on the Internet also see a solution, not used, estimated to be possible:

1, modify the configuration file Listener.ora will host= your own host name
LISTENER =
  (Description_list =
    (DESCRIPTION =
      (ADDRESS = (PROTOCOL = IPC) (KEY = EXTPROC1))
      (ADDRESS = (PROTOCOL = TCP) (HOST = sweetboy_pc) (PORT = 1521))
    )
  )
File path:
C:\oracle\product\10.2.0\db_1\NETWORK\ADMIN
2, check the monitoring settings, restart the monitoring service.

Originally from: http://w-tingsheng.blog.163.com/blog/static/25056034201211375053120/

Note: Use at risk, do not operate in the production environment at will, such as unforeseen consequences, please own responsibility.

Of course, your own computer is best not to engage in random, messed up and re-installed (System or Oracle), push

Virtual machine learning is recommended.

Cannot connect problems after installing Oracle