很多时候当装好Oracle10g后，登录http://kcsqlbi:5560/isqlplus/dba弹出的Windows认证窗口，尽管输入什么帐号，都无法登录。

下面就是解决方案：

1- From the command prompt, stop isqlplus:c:\>isqlplusctl stop

2- Assuming that you install oracle under C drive, run the following comands:

c:\>set oracle_home=c:\oracle\product\10.2.0\db_1

c:\>set java_home=%ORACLE_HOME%\jdk

3- Change directory to:

cd %ORACLE_HOME%\oc4j\j2ee\isqlplus\application-deployments\isqlplus

4- Suppose you need to create a new user with user name 'yoyo' and password 'ch51*****', run the following command:

%JAVA_HOME%\bin\java -Djava.security.properties=%ORACLE_HOME%\oc4j\j2ee\home\config\jazn.security.props -jar %ORACLE_HOME%\oc4j\j2ee\home\jazn.jar -user "iSQL*Plus DBA/admin" -password welcome -adduser "iSQL*Plus DBA" yoyo ch51*****

5- To check that adding this new user was successful, run the following command:

%JAVA_HOME%\bin\java -Djava.security.properties=%ORACLE_HOME%\oc4j\j2ee\home\config\jazn.security.props -jar %ORACLE_HOME%\oc4j\j2ee\home\jazn.jar -user "iSQL*Plus DBA/admin" -password welcome -listusers "iSQL*Plus DBA"

结果：

admin

yoyo

6- To grant a user access to the webDba role from the command line, enter:

%JAVA_HOME%\bin\java -Djava.security.properties=%ORACLE_HOME%\oc4j\j2ee\home\config\jazn.security.props -jar %ORACLE_HOME%\oc4j\j2ee\home\jazn.jar -user "iSQL*Plus DBA/admin" -password welcome -grantrole webDba "iSQL*Plus DBA" yoyo

7- Now, run start isqlplus again and enjoy it:

isqlplusctl start

8. 再次访问： http://hostname:5560/isqlplus/dba, 给出用户名和密码： yoyo 和 ch51***** (全小写)，就可看到isqlplus的登入界面，

然后再提供用户名：SYSTEM,口令：ch51*****， 连接标识:(DESCRIPTION=(ADDRESS_LIST=(ADDRESS=(PROTOCOL=TCP)(HOST=KCSQLBI)(PORT=1521)))(CONNECT_DATA=(SERVICE_NAME=orcl))),权限SYSDBA， 就可以访问了。

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