Home Database Mysql Tutorial 5种方法访问GlassFish资源

5种方法访问GlassFish资源

Jun 07, 2016 pm 05:45 PM
jdbc nbsp quot

方法1,通过管理控制台


 
  首先,先通过管理控制台来创建一个连接池mypool。在浏览器的输入管理控制台地址:localhost:4848。采用缺省的用户名“admin”及其密码“adminadmin”登录。成功登录后,在左边的树型菜单中,展开“资源”-“JDBC”-“连接池”。
在主面板中,点击“新建”。在面板“新建 JDBC 连接池(步骤 1,共 2 步)”中,输入“名称”为mypool,“资源类型”选为“javax.sql.DataSource”,“数据库供应商”选为“JavaDB”。在接下来的“新建 JDBC 连接池(步骤 2,共 2 步)”中,可以看到数据库连接池的各项缺省设置。将在“池设置”一栏中的“空闲超时”值由缺省的300改为777。 点击“完成”。至此,我们通过管理控制台完成了对数据库连接池mypook的创建,并修改了其空闲超时的值。

 
  方法2,通过命令行工具asadmin

接下来,我们通过命令行的asadmin来查看这一资源。
asadmin list server.resource*
运行结果如下:

 

undefined
undefined
  server.resource
  -
  ref
  .jdbc
  /
  __CallFlowPool server.resource
  -
  ref
  .jdbc
  /
  __TimerPool server.resource
  -
  ref
  .jdbc
  /
  __default server.resources server.resources.jdbc
  -
  connection
  -
  pool.DerbyPool server.resources.jdbc
  -
  connection
  -
  pool.__CallFlowPool server.resources.jdbc
  -
  connection
  -
  pool.__TimerPool server.resources.jdbc
  -
  connection
  -
  pool.mypool server.resources.jdbc
  -
  resource.jdbc
  /
  __CallFlowPool server.resources.jdbc
  -
  resource.jdbc
  /
  __TimerPool server.resources.jdbc
  -
  resource.jdbc
  /
  __default

这里列出的MBean是用GlassFish自己的DottedName来标识的。接着通过asadmin的子命令get来查看对象mypool的属性:
asadmin get server.resources.jdbc-connection-pool.mypool.*
或者进一步查看空闲超时(idle-timeout-in-seconds)的属性值。
asadmin get server.resources.jdbc-connection-pool.mypool.idle-timeout-in-seconds


结果如下:
server.resources.jdbc-connection-pool.mypool.idle-timeout-in-seconds = 777
至此,我们完成了使用命令行的管理工具asadmin对mypool的访问。这里asadmin通过GlassFish扩展的Dotted Name命名方式来访问MBean的。Dotted Name是GlassFish命令行工具asadmin定义的一套约定。在这套约定的支持下,asadmin的三个子命令(list、set和get )可以通过一个由“.”分隔的字串寻址到GlassFish中的MBean。


方法3,通过第三方工具JConsole


接下来,我们要通过JConsole来访问对象mypool。
在JConsole的登录面板中,选择远处进程:localhost:8686(8686是GlassFish缺省的管理端口),用户名同样为admin,密码adminadmin。登录进来后所看到的是关于GlassFish应用服务器运行时的信息,点击“MBean”。展开树型结构“com.sun.aperv” - “jdbc-connection-pool” - “my pool” - “config” - “属性”。
可以

看到我们所关心的连接池mypool的信息。属性idle-timeout-in-seconds的值为777。修改777为888。
在回到管理控制台或命令行工具asadmin同样可以看到刚才在JConsole所作的修改已经生效。
以上说明三种工具对GlassFish资源的修改是等效的。

接下来通过编程的方式来访问数据库连接池mypool。


方法4,通过标准的JMX编程方式


标准的JMX方式的代码如下:(以下为演示代码。为突出重点,未作异常处理。)


 

undefined
undefined
  import javax.management.
  *
  ; import javax.management.remote.
  *
  ;
  public
  
  class
   JMX_demo {
  public
   JMX_demo() throws Exception {
  //
  创建JMX 的URL
  
  JMXServiceURL url
  =
  
  new
   JMXServiceURL(
  "
  service:jmx:rmi:///jndi/rmi://localhost:8686/jmxrmi
  "
  ); java.util.Map env
  =
  
  new
   java.util.Hashtable();
  //
  缺省用户名和其口令
  
  String[] creds
  =
   {
  "
  admin
  "
  ,
  "
  adminadmin
  "
  }; env.put(JMXConnector.CREDENTIALS,creds);
  //
  建立连接
  
  JMXConnector connector
  =
   JMXConnectorFactory.connect(url,env); MBeanServerConnection mbsc
  =
   connector.getMBeanServerConnection();
  //
  要访问的MBean的Object Name
  
  ObjectName mbeanName
  =
  
  new
   ObjectName(
  "
  com.sun.appserv:type=jdbc-connection-pool,name=mypool,category=config
  "
  );
  //
  所要访问的属性idle-timeout-in-seconds
  
  System.
  out
  .println(
  "
  Using JMX, jdbc pool idle timeout:
  "
  +
   mbsc.getAttribute(mbeanName,
  "
  idle-timeout-in-seconds
  "
  )); }
  public
  
  static
  
  void
   main( final String[] args ) throws Exception{
  new
   JMX_demo(); } }
运行结果如下: Using JMX, jdbc pool idle timeout:888


 

undefined
undefined
  public
  
  class
   AMX_demo {
  public
   AMX_demo() throws Exception {
  //
  Domain Admin Server的机器名或IP地址
  
  final String host
  =
  
  "
  localhost
  "
  ;
  //
  JMX管理端口,缺省8686。
  
  final
  int
   port
  =
  8686
  ;
  //
  管理员名
  
  final String user
  =
  
  "
  admin
  "
  ;
  //
   管理员密码
  
  final String password
  =
  
  "
  adminadmin
  "
  ; TLSParams tlsParams
  =
  null
  ;
  //
  连接到JMX server
  
  AppserverConnectionSource conn
  =
  
  new
   AppserverConnectionSource( AppserverConnectionSource.PROTOCOL_RMI, host, port, user, password, tlsParams,
  null
  ); conn.getJMXConnector(
  true
   );
  //
  DomainRoot和JDBCConnectionPoolConfig就是所说的DCP组件 DomainRoot mDomainRoot = conn.getDomainRoot();
  //
  获取JDBCConnectionPool的列表
  
  Map pools
  =
   mDomainRoot.getDomainConfig().getJDBCConnectionPoolConfigMap(); JDBCConnectionPoolConfig mypool
  =
   (JDBCConnectionPoolConfig)pools.
  get
  (
  "
  mypool
  "
  ); System.
  out
  .println(
  "
  Using DCP, jdbc pool idle timeout:
  "
  +
  mypool.getIdleTimeoutInSeconds()); }
  public
  
  static
  
  void
   main( final String[] args ) throws Exception{
  new
   AMX_demo(); } }方法5,通过AMX编程方式

AMX方式的代码如下:


 

undefined
undefined
  import com.sun.appserv.management.DomainRoot; import com.sun.appserv.management.client.AppserverConnectionSource; import com.sun.appserv.management.client.TLSParams; import com.sun.appserv.management.util.misc.ExceptionUtil; import com.sun.appserv.management.config.
  *
  ; import java.ConnectException; import java.util.Map;

Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn

Hot AI Tools

Undresser.AI Undress

Undresser.AI Undress

AI-powered app for creating realistic nude photos

AI Clothes Remover

AI Clothes Remover

Online AI tool for removing clothes from photos.

Undress AI Tool

Undress AI Tool

Undress images for free

Clothoff.io

Clothoff.io

AI clothes remover

AI Hentai Generator

AI Hentai Generator

Generate AI Hentai for free.

Hot Article

R.E.P.O. Energy Crystals Explained and What They Do (Yellow Crystal)
3 weeks ago By 尊渡假赌尊渡假赌尊渡假赌
R.E.P.O. Best Graphic Settings
3 weeks ago By 尊渡假赌尊渡假赌尊渡假赌
R.E.P.O. How to Fix Audio if You Can't Hear Anyone
3 weeks ago By 尊渡假赌尊渡假赌尊渡假赌
WWE 2K25: How To Unlock Everything In MyRise
3 weeks ago By 尊渡假赌尊渡假赌尊渡假赌

Hot Tools

Notepad++7.3.1

Notepad++7.3.1

Easy-to-use and free code editor

SublimeText3 Chinese version

SublimeText3 Chinese version

Chinese version, very easy to use

Zend Studio 13.0.1

Zend Studio 13.0.1

Powerful PHP integrated development environment

Dreamweaver CS6

Dreamweaver CS6

Visual web development tools

SublimeText3 Mac version

SublimeText3 Mac version

God-level code editing software (SublimeText3)

Solution: Your organization requires you to change your PIN Solution: Your organization requires you to change your PIN Oct 04, 2023 pm 05:45 PM

The message "Your organization has asked you to change your PIN" will appear on the login screen. This happens when the PIN expiration limit is reached on a computer using organization-based account settings, where they have control over personal devices. However, if you set up Windows using a personal account, the error message should ideally not appear. Although this is not always the case. Most users who encounter errors report using their personal accounts. Why does my organization ask me to change my PIN on Windows 11? It's possible that your account is associated with an organization, and your primary approach should be to verify this. Contacting your domain administrator can help! Additionally, misconfigured local policy settings or incorrect registry keys can cause errors. Right now

How to adjust window border settings on Windows 11: Change color and size How to adjust window border settings on Windows 11: Change color and size Sep 22, 2023 am 11:37 AM

Windows 11 brings fresh and elegant design to the forefront; the modern interface allows you to personalize and change the finest details, such as window borders. In this guide, we'll discuss step-by-step instructions to help you create an environment that reflects your style in the Windows operating system. How to change window border settings? Press + to open the Settings app. WindowsI go to Personalization and click Color Settings. Color Change Window Borders Settings Window 11" Width="643" Height="500" > Find the Show accent color on title bar and window borders option, and toggle the switch next to it. To display accent colors on the Start menu and taskbar To display the theme color on the Start menu and taskbar, turn on Show theme on the Start menu and taskbar

How to change title bar color on Windows 11? How to change title bar color on Windows 11? Sep 14, 2023 pm 03:33 PM

By default, the title bar color on Windows 11 depends on the dark/light theme you choose. However, you can change it to any color you want. In this guide, we'll discuss step-by-step instructions for three ways to change it and personalize your desktop experience to make it visually appealing. Is it possible to change the title bar color of active and inactive windows? Yes, you can change the title bar color of active windows using the Settings app, or you can change the title bar color of inactive windows using Registry Editor. To learn these steps, go to the next section. How to change title bar color in Windows 11? 1. Using the Settings app press + to open the settings window. WindowsI go to "Personalization" and then

OOBELANGUAGE Error Problems in Windows 11/10 Repair OOBELANGUAGE Error Problems in Windows 11/10 Repair Jul 16, 2023 pm 03:29 PM

Do you see "A problem occurred" along with the "OOBELANGUAGE" statement on the Windows Installer page? The installation of Windows sometimes stops due to such errors. OOBE means out-of-the-box experience. As the error message indicates, this is an issue related to OOBE language selection. There is nothing to worry about, you can solve this problem with nifty registry editing from the OOBE screen itself. Quick Fix – 1. Click the “Retry” button at the bottom of the OOBE app. This will continue the process without further hiccups. 2. Use the power button to force shut down the system. After the system restarts, OOBE should continue. 3. Disconnect the system from the Internet. Complete all aspects of OOBE in offline mode

How to enable or disable taskbar thumbnail previews on Windows 11 How to enable or disable taskbar thumbnail previews on Windows 11 Sep 15, 2023 pm 03:57 PM

Taskbar thumbnails can be fun, but they can also be distracting or annoying. Considering how often you hover over this area, you may have inadvertently closed important windows a few times. Another disadvantage is that it uses more system resources, so if you've been looking for a way to be more resource efficient, we'll show you how to disable it. However, if your hardware specs can handle it and you like the preview, you can enable it. How to enable taskbar thumbnail preview in Windows 11? 1. Using the Settings app tap the key and click Settings. Windows click System and select About. Click Advanced system settings. Navigate to the Advanced tab and select Settings under Performance. Select "Visual Effects"

Display scaling guide on Windows 11 Display scaling guide on Windows 11 Sep 19, 2023 pm 06:45 PM

We all have different preferences when it comes to display scaling on Windows 11. Some people like big icons, some like small icons. However, we all agree that having the right scaling is important. Poor font scaling or over-scaling of images can be a real productivity killer when working, so you need to know how to customize it to get the most out of your system's capabilities. Advantages of Custom Zoom: This is a useful feature for people who have difficulty reading text on the screen. It helps you see more on the screen at one time. You can create custom extension profiles that apply only to certain monitors and applications. Can help improve the performance of low-end hardware. It gives you more control over what's on your screen. How to use Windows 11

10 Ways to Adjust Brightness on Windows 11 10 Ways to Adjust Brightness on Windows 11 Dec 18, 2023 pm 02:21 PM

Screen brightness is an integral part of using modern computing devices, especially when you look at the screen for long periods of time. It helps you reduce eye strain, improve legibility, and view content easily and efficiently. However, depending on your settings, it can sometimes be difficult to manage brightness, especially on Windows 11 with the new UI changes. If you're having trouble adjusting brightness, here are all the ways to manage brightness on Windows 11. How to Change Brightness on Windows 11 [10 Ways Explained] Single monitor users can use the following methods to adjust brightness on Windows 11. This includes desktop systems using a single monitor as well as laptops. let's start. Method 1: Use the Action Center The Action Center is accessible

How to Fix Activation Error Code 0xc004f069 in Windows Server How to Fix Activation Error Code 0xc004f069 in Windows Server Jul 22, 2023 am 09:49 AM

The activation process on Windows sometimes takes a sudden turn to display an error message containing this error code 0xc004f069. Although the activation process is online, some older systems running Windows Server may experience this issue. Go through these initial checks, and if they don't help you activate your system, jump to the main solution to resolve the issue. Workaround – close the error message and activation window. Then restart the computer. Retry the Windows activation process from scratch again. Fix 1 – Activate from Terminal Activate Windows Server Edition system from cmd terminal. Stage – 1 Check Windows Server Version You have to check which type of W you are using

See all articles