The scripting library provides Jython script procedures
to assist in automating your environment. Use the server management
scripts to configure servers, the server runtime environment, Web
containers, performance monitoring, and logs. You can also use the
scripts to administer your servers.
About this task
Scripting 程式庫提供一組自動執行最常見應用程式伺服器管理功能的程序。
Jython Script 程式庫有三種使用方式。
- 利用 wsadmin 工具,以互動模式執行 Jython Script 程式庫中的 Script。
您可以啟動 wsadmin 工具,然後利用下列語法來執行併入 Script 程式庫的個別 Script:
wsadmin>AdminServerManagement.createApplicationServer("myNode", "myServer", "default")
- 利用文字編輯器,依照下列範例所示,將 Jython Script 程式庫中的若干 Script 結合起來:
#
# My Custom Jython Script - file.py
#
AdminServerManagement.createApplicationServer("myNode", "Server1", "default")
AdminServerManagement.createApplicationServer("myNode", "Server2", "default")
# 使用其中一個作為叢集的第一個成員
AdminClusterManagement.createClusterWithFirstMember("myCluster", "APPLICATION_SERVER",
"myNode", "Server1")
# 新增第二個成員到叢集中
AdminClusterManagement.createClusterMember("myCluster", "myNode", "Server3")
# 安裝應用程式
AdminApplication.installAppWithClusterOption("DefaultApplication",
"..\installableApps\DefaultApplication.ear", "myCluster")
# 啟動節點上的所有伺服器和應用程式
AdminServerManagement.startAllServers("myNode")
請將自訂 Script 儲存起來,然後依照下列語法所示,從指令行執行它:
bin>wsadmin -language jython -f path/to/your/jython/file.py
- 利用 Jython Scripting 程式庫程式碼作為撰寫自訂 Script 的語法範例。
Script 程式庫中的各個 Script 範例示範撰寫 wsadmin Script 的最佳實務。
Script 程式庫程式碼位於app_server_root/scriptLibraries 目錄中。
在這個目錄內,Script 是先依照功能組織成子目錄。
例如,app_server_root/scriptLibraries/application/V70
子目錄所包含的程序會執行適用於產品 7.0 版及更新版本的應用程式管理作業。Script 程式庫路徑中的 V70 子目錄不表示
在該子目錄中的 Script 為 7.0 版 Script。
The
AdminServerManagement procedures in scripting library are located
in the
app_server_root/scriptLibraries/servers/V70
subdirectory. Each script from the directory automatically loads when
you launch the wsadmin tool. To automatically load your own Jython
scripts (*.py) when the wsadmin tool starts, create a new subdirectory
and save existing automation scripts under the
app_server_root/scriptLibraries
directory.
最佳作法: To create custom scripts using
the scripting library procedures, save the modified scripts to a new
subdirectory to avoid overwriting the library. Do not edit the script
procedures in the scripting library.
bprac
You can use the
AdminServerManagement.py scripts to perform multiple combinations
of administration functions. Use the following steps to create an
application server, connect the application server to the AdminService
interface, configure Java™ virtual
machine (JVM) settings, add the application server to a cluster, and
propagate the changes to the node.
Procedure
- Optional: Launch the wsadmin tool.
Use
this step to launch the wsadmin tool and connect to a server, job
manager, or administrative agent profile, or run the tool in local
mode. If you launch the wsadmin tool, use the interactive mode examples
to run scripts.
When the wsadmin tool launches, the system
loads all scripts from the scripting library.
- Create an application server.
Run the createApplicationServer
script procedure from the AdminServerManagement script library, as
the following example demonstrates:
bin>wsadmin -lang jython -c "AdminServerManagement.createApplicationServer("myNode", "myServer", "default")"
You
can also use interactive mode to run the script procedure, as the
following example demonstrates:
wsadmin>AdminServerManagement.createApplicationServer("myNode", "myServer", "default")
- Connect the application server of interest to the AdminService
interface.
The AdminService interface is the server
interface to the application server administration functions. To connect
the application server to the AdminService interface, run the configureAdminService
script procedure from the AdminServerManagement script library, specifying
the node name, server name, and connector type arguments, as the following
example demonstrates:
bin>wsadmin -lang jython -c "AdminServerManagement.configureAdminService("myNode", "myServer",
"IPC", "JSR160RMI")
You can also use
interactive mode to run the script procedure, as the following example
demonstrates:
wsadmin>AdminServerManagement.configureAdminService("myNode", "myServer", "IPC", "JSR160RMI")
- Configure the Java virtual
machine (JVM).
As part of configuring an application
server, you might define settings that enhance the way your operating
system uses of the JVM. The JVM is an interpretive computing engine
responsible for running the byte codes in a compiled Java program. The JVM translates the Java byte codes into the native instructions
of the host machine. The application server, being a Java process, requires a JVM in order to run,
and to support the Java applications running on it.
Run
the configureJavaVirtualMachine script procedure from the AdminServerManagement
script library, specifying the node name, server name, whether to
run the JVM in debug mode, and any debug arguments to pass to the
JVM process. You can optionally specify additional configuration attributes
with an attribute list. Use the following example to configure the
JVM:
bin>wsadmin -lang jython -c "AdminServerManagement.configureJavaVirtualMachine("myNode",
"myServer", "true", "mydebug", [["internalClassAccessMode", "RESTRICT"],
["disableJIT", "false"], ["verboseModeJNI", "false"]])"
You
can also use interactive mode to run the script procedure, as the
following example demonstrates:
wsadmin>AdminServerManagement.configureJavaVirtualMachine("myNode", "myServer", "true",
"mydebug", [["internalClassAccessMode", "RESTRICT"],
["disableJIT", "false"], ["verboseModeJNI", "false"]])
- Create a cluster, and add the application server as a cluster
member.
Run the createClusterWithFirstMember script
procedure from the AdminClusterManagement script library, as the following
example demonstrates:
bin>wsadmin -lang jython -c "AdminClusterManagement.createClusterWithFirstMember("myCluster",
"APPLICATION_SERVER", "myNode", "myServer")"
wsadmin>AdminClusterManagement.createClusterWithFirstMember("myCluster", "APPLICATION_SERVER",
"myNode", "myServer")
- Synchronize the node.
To
propagate the configuration changes to the node, run the syncNode
script procedure from the AdminNodeManagement script library, and
specify the node of interest, as the following example demonstrates:
bin>wsadmin -lang jython -c "AdminNodeManagement.syncNode("myNode")"
You
can also use interactive mode to run the script procedure, as the
following example displays:
wsadmin>AdminNodeManagement.syncNode("myNode")
Results
The wsadmin script libraries return the same output
as the associated wsadmin commands. For example, the AdminServerManagement.listServers()
script returns a list of available servers. The AdminClusterManagement.checkIfClusterExists()
script returns a value of true if the cluster exists, or false if
the cluster does not exist. If the command does not return the expected
output, the script libraries return a 1 value when the script successfully
runs. If the script fails, the script libraries return a -1 value
and an error message with the exception.
By default, the system
disables failonerror option. To enable this option, specify
true as
the last argument for the script procedure, as the following example
displays:
wsadmin>AdminApplication.startApplicationOnCluster("myApplication","myCluster","true")
What to do next
Create custom scripts to automate your environment by
combining script procedures from the scripting library. Save custom
scripts to a new subdirectory of the app_server_root/scriptLibraries
directory.