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weblogic基本概念
WebLogic 应用服务器有如下几个基本概念: Domain: 域是个逻辑概念,用来组织管理一系列的应用服务器实例,也就是下面要解释的server. 域是WebLogic应用服务器中最大的概念,WebLogic应用服务器启动的时候就是以某个域来启动的,它有一个中心配置文件叫config.xml. A domain is the basic administration unit for WebLogic Server instances (servers) that is represented in its own configuration file (config.xml). A domain consists of one or more servers (and their associated resources) that you manage with a single Administration Server. Cluster: 族也是一个逻辑概念,用来分组用途相同的服务器实例,一个域中可以有多个族。 A cluster is a deployment in which multiple WebLogic Server instances (servers) run simultaneously and work together to provide increased scalability and reliability. A cluster appears to clients to be a single WebLogic Server instance. The servers that constitute a cluster can run on the same machine, or be located on different machines. Machine: 机器是物理上的概念,代表一台运行WebLogic应用服务器的实在的机器,包括其IP地址等信息。一个域中可以包括多台机器。(同一台机器可以属于不同的域吗?) A machine is the logical representation of the computer that hosts one or more WebLogic Server instances (servers). WebLogic Server uses configured machine names to determine the optimum server in a cluster to which certain tasks, such as HTTP session replication, are delegated. The Administration Server uses the machine definition in conjunction with the Node Manager application to start remote servers. Server: 服务器,也就是一个应用服务器的实例,用来部署和运行各种J2EE应用程序,也可以来配置各种服务程序。它是WebLogic应用服务器的基本服务单元。一个WebLogic域中一般有一个管理服务器和多个被管理服务器。也就是下面我们要谈到的两个概念。 A server is an instance of WebLogic Server that runs in its own Java Virtual Machine (JVM) and has its own configuration. Each WebLogic Server domain must have one server that acts as the Administration Server. In a typical production environment, the Administration Server is where the Administration Console is run and used to perform administrative tasks. By default, the Administration Server is called myserver. A typical production environment may also have one or more Managed Servers, which are instances of WebLogic Server used to host enterprise applications. Administrative Server: 管理服务器是用来管理配置域的中心点,一般来说,管理服务器上是不部署应用程序的,而是用来统一管理、配置、监控被管理服务器以及部署应用程序到被管理服务器上。一个域中有一台管理服务器。 Managed Server: 被管理服务器是用来部署运行各种应用程序的。一个域中有一台或多台被管理服务器。 Node Manager: 节点管理器是一个单独运行的后台程序,一般运行在被管理服务器的机器上,用来提供远程启动和停止服务器(Server)的功能。
- 2014-02-28下载
- 积分:1
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Bible.5th.Edition.eBook
java升级第五版,学习java的工具,值得一看(Java bible fifth edition, learn Java tool, is worth a look.)
- 2012-04-06 11:17:45下载
- 积分:1
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array-sort
Test counter-intuitive default number sorting for Java Script.
- 2013-12-27 00:20:16下载
- 积分:1
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java-word--fenxiqi
说明: 使用java实现词法分析器,使用java实现词法分析器,使用java实现词法分析器使用java实现词法分析器,,(Using java to achieve lexical analyzer, lexical analyzer using java implementation, the use of java with java implementation to achieve the lexer lexical analyzer,)
- 2011-04-02 20:28:18下载
- 积分:1
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生命游戏
说明: 一个小游戏,关于生命算法的,设置初始值然后进行生命周期的迭代(A small game, about life algorithm, set the initial value and then iterate through the life cycle)
- 2020-06-16 10:40:01下载
- 积分:1
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数学题练习平台
说明: 基于JavaGUI的数学题练习平台,题目分为小学,初中,高中,每次测验后,会生成当前的测试成绩(JavaGUI-based Mathematics Exercise Platform, the topics are divided into primary, junior and senior high schools, after each test, the current test results will be generated.)
- 2020-06-19 10:00:02下载
- 积分:1
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时钟 走动
一个应用线程实现指针运动的指针时钟程序。程序应用绘制函数时钟面板,根据线程休眠时间间隔,每隔1000ms进行一次重绘。程序通过获取系统时间函数并加以计算个指针位置,再利用绘制函数将其绘制在面板上,通过设置指针长度及颜色,实现时针、分针、秒针的区分。次外,通过获取窗体大小,设置圆面圆心坐标及半径,可依据窗口大小动态划分圆面大小,并动态绘制刻度点位置。(A pointer clock program that uses threads to implement pointer movement. The program draws the function clock panel and redraws it every 1000ms according to the interval of thread dormancy. The program obtains the system time function and calculates the position of a pointer, then draws it on the panel by drawing function. By setting the length and color of the pointer, it achieves the distinction of clockwise, minute and secondhand. Secondly, by acquiring the size of the form and setting the coordinates and radius of the circle center, the circle size can be dynamically divided according to the size of the window, and the location of the scale points can be dynamically plotted.)
- 2020-06-19 19:00:01下载
- 积分:1
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java 到sql sever 数据库系统实现 图书管理系统 开发工具eclipse,含java代码,sql代码,课程设计word文档。已测试无error~
java 到sql sever 数据库系统实现 图书管理系统 开发工具eclipse,含java代码,sql代码,课程设计word文档/已测试无error~ 模块功能介绍 2.2.1 管理员模块功能介绍 1.查询图书 此模块可以查询图书 2.借阅图书 此模块可以借阅图书 3.归还图书 此模块的可以归还图书 4.删除图书 此模块可以删除图书 5.添加图书 此模块可以添加图书 6.删除用户 此模块可以删除用户 7.查询用户 此模块可以查询用户 2.2.2 用户模块功能介绍 1.查询图书 此模块可以查询图书 2.借阅图书 此模块可以借阅图书 3.归还图书 此模块的可以归还图书 4.注册 此模块的可以用户注册
- 2021-05-06下载
- 积分:1
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Think-In-Java-4-(chinese)
thinking in java 是一部经典的java书籍,无论是是对于初学者还是有一定开发经验的java程序员来说,他都是一不好说,称得上是一部经典。(thinking in java java books is a classic, whether for a beginner or have some experience in the development of java programmers, he is a hard to say, be regarded as a classic.)
- 2014-02-08 11:04:45下载
- 积分:1
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RTPpacket
rtp packet source code
- 2012-01-11 16:48:20下载
- 积分:1