Oracle ebs12版本中，12.1和12.2更改密码有比较大的变化，以下是12.2变更的操作系统层的命令，以下是官方文档：

R12.2: Steps to Change the APPS, APPLSYS, and APPS_NE Password Using FNDCPASS or AFPASSWD (文档 ID 1674462.1)

–具体命令如下

su – appldev
cd $INST_TOP/admin/scripts
./adstpall apps/apps;
[appldev@devfin scripts]$ FNDCPASS apps/apps 0 Y system/manager SYSTEM APPLSYS xxxxxx
Log filename : L510975.log

Report filename : O510975.out
[appldev@devfin scripts]$ cat L510975.log
+—————————————————————————+
Application Object Library: Version : 12.2

Copyright (c) 1998, 2013, Oracle and/or its affiliates. All rights reserved.

FNDCPASS: 
+—————————————————————————+

Current system time is 17-JAN-2018 10:29:36

+—————————————————————————+

Arguments
 
   FNDCPASS system/***** SYSTEM APPLSYS ***** 
+—————————————————————————-+
Working…

FNDCPASS completed successfully.

+—————————————————————————+
Concurrent request completed successfully
Current system time is 17-JAN-2018 10:29:37

+—————————————————————————+
[appldev@devfin scripts]$ ./adautocfg.sh
Enter the APPS user password:

The log file for this session is located at: /u01/DEV/app/fs1/inst/apps/DEV_devfin/admin/log/01171038/adconfig.log

AutoConfig is configuring the Applications environment…

AutoConfig will consider the custom templates if present.
        Using CONFIG_HOME location     : /u01/DEV/app/fs1/inst/apps/DEV_devfin
        Classpath                   : /u01/DEV/app/fs1/FMW_Home/Oracle_EBS-app1/shared-libs/ebs-appsborg/WEB-INF/lib/ebsAppsborgManifest.jar:/u01/DEV/app/fs1/EBSapps/comn/java/classes

        Using Context file          : /u01/DEV/app/fs1/inst/apps/DEV_devfin/appl/admin/DEV_devfin.xml

Context Value Management will now update the Context file

        Updating Context file…COMPLETED

        Attempting upload of Context file and templates to database…COMPLETED

Configuring templates from all of the product tops…
        Configuring AD_TOP……..COMPLETED
        Configuring FND_TOP…….COMPLETED
        Configuring ICX_TOP…….COMPLETED
        Configuring MSC_TOP…….COMPLETED
        Configuring IEO_TOP…….COMPLETED
        Configuring BIS_TOP…….COMPLETED
        Configuring CZ_TOP……..COMPLETED
        Configuring SHT_TOP…….COMPLETED
        Configuring AMS_TOP…….COMPLETED
        Configuring CCT_TOP…….COMPLETED
        Configuring WSH_TOP…….COMPLETED
        Configuring CLN_TOP…….COMPLETED
        Configuring OKE_TOP…….COMPLETED
        Configuring OKL_TOP…….COMPLETED
        Configuring OKS_TOP…….COMPLETED
        Configuring CSF_TOP…….COMPLETED
        Configuring IBY_TOP…….COMPLETED
        Configuring JTF_TOP…….COMPLETED
        Configuring MWA_TOP…….COMPLETED
        Configuring CN_TOP……..COMPLETED
        Configuring CSI_TOP…….COMPLETED
        Configuring WIP_TOP…….COMPLETED
        Configuring CSE_TOP…….COMPLETED
        Configuring EAM_TOP…….COMPLETED
        Configuring GMF_TOP…….COMPLETED
        Configuring PON_TOP…….COMPLETED
        Configuring FTE_TOP…….COMPLETED
        Configuring ONT_TOP…….COMPLETED
        Configuring AR_TOP……..COMPLETED
        Configuring AHL_TOP…….COMPLETED
        Configuring IES_TOP…….COMPLETED
        Configuring OZF_TOP…….COMPLETED
        Configuring CSD_TOP…….COMPLETED
        Configuring IGC_TOP…….COMPLETED

AutoConfig completed successfully.

[appldev@devfin scripts]$ ./adadminsrvctl.sh start

You are running adadminsrvctl.sh version 120.10.12020000.10

Enter the WebLogic Admin password:
Enter the APPS Schema password:
Starting WLS Admin Server…
Refer /u01/DEV/app/fs1/inst/apps/DEV_devfin/logs/appl/admin/log/adadminsrvctl.txt for details

AdminServer logs are located at /u01/DEV/app/fs1/FMW_Home/user_projects/domains/EBS_domain_DEV/servers/AdminServer/logs

adadminsrvctl.sh: exiting with status 0

adadminsrvctl.sh: check the logfile /u01/DEV/app/fs1/inst/apps/DEV_devfin/logs/appl/admin/log/adadminsrvctl.txt for more information …  

[appldev@devfin scripts]$ grep wls_adminport $CONTEXT_FILE
         <wls_adminport oa_var="s_wls_adminport" oa_type="PORT" base="7001" step="1" range="-1" label="WLS Admin Server Port">7009</wls_adminport>

–上面步骤完成后，通过前台页面去进行WLS层级的配置

http://xxxxx:7009/console
a. Log in to WLS Administration Console.
b. Click Lock & Edit in Change Center.
c. In the Domain Structure tree, expand Services, then select Data Sources.
d. On the "Summary of JDBC Data Sources" page, select EBSDataSource.
e. On the "Settings for EBSDataSource" page, select the Connection Pool tab.
f. Enter the new password in the "Password" field.
g. Enter the new password in the "Confirm Password" field.
h. Click Save.
i. Click Activate Changes in Change Center.

[appldev@devfin scripts]$ ./adstrtal.sh apps/xxxxxx