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:oracleproduct10.2.0db_1

c:>set java_home=%ORACLE_HOME%jdk

3- Change directory to:

cd %ORACLE_HOME%oc4jj2eeisqlplusapplication-deploymentsisqlplus

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

%JAVA_HOME%binjava -Djava.security.properties=%ORACLE_HOME%oc4jj2eehomeconfigjazn.security.props -jar %ORACLE_HOME%oc4jj2eehomejazn.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%binjava -Djava.security.properties=%ORACLE_HOME%oc4jj2eehomeconfigjazn.security.props -jar %ORACLE_HOME%oc4jj2eehomejazn.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%binjava -Djava.security.properties=%ORACLE_HOME%oc4jj2eehomeconfigjazn.security.props -jar %ORACLE_HOME%oc4jj2eehomejazn.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。