简化了企业级软件开发中复杂的对象管理事务； • 克服了 C++ 语言等内存泄漏缺陷； • 减轻软件开发人员的负担。 图 15.2 Java EE 容器 15.3.1 客户端应用容器 • 客户端应用容器（Application Client Container）即是普通 Java SE 的 JVM，管理 和运行客户 JavaBean 组件，与一般的 Java 类没有区别。 • Java EE 规范将客户端应用 中国海洋大学信息学院计算机系 第 204 页 / 共 306 页 15.4. JAVA EE 组件 � 15 � 图 15.3 Java EE 组件 15.4.2 Java EE 组件列表 1. Application Client Component 2. Applet Component 3. Web Component * • Servlet • JSP 4. EJB Component * destroy() { 2 try { 3 cn.close (); 4 } catch (Exception e) { 5 application.Log(”登录处理关闭数据库错误” + e.getMessage()); 6 } 7 } 代码中 application 为 Web 应用的上下文环境对象。 16.4 Servlet 生命周期 16.4.1 Servlet 的运行过程 1.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54 1.5.4. Request, Session, Application, and WebSocket Scopes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54 Initial . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56 Application Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Resources . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 213 1.15.4. Application Startup Tracking. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

dependencies Request, session, global session, application, and WebSocket scopes Initial web configuration Request scope Session scope Global session scope Application scope Scoped beans as dependencies Choosing classes or @Bean methods Combining Java and XML configuration XML-centric use of @Configuration classes @Configuration class-centric use of XML with @ImportResource Environment abstraction Bean definition as dependencies Application contexts and Resource paths Constructing application contexts Constructing ClassPathXmlApplicationContext instances - shortcuts Wildcards in application context constructor

dependencies Request, session, global session, application, and WebSocket scopes Initial web configuration Request scope Session scope Global session scope Application scope Scoped beans as dependencies Choosing classes or @Bean methods Combining Java and XML configuration XML-centric use of @Configuration classes @Configuration class-centric use of XML with @ImportResource Environment abstraction Bean definition as dependencies Application contexts and Resource paths Constructing application contexts Constructing ClassPathXmlApplicationContext instances - shortcuts Wildcards in application context constructor

dependencies ............................................ 73 Request, session, global session, application, and WebSocket scopes ................. 73 Initial web configuration ......................... session scope ............................................................................... 75 Application scope ..................................................................................... 75 .......................... 167 8.7. Application contexts and Resource paths .......................................................... 167 Constructing application contexts ..........................

dependencies ............................................ 69 Request, session, global session, application, and WebSocket scopes ................. 70 Initial web configuration ......................... session scope ............................................................................... 71 Application scope ..................................................................................... 72 .......................... 159 8.7. Application contexts and Resource paths .......................................................... 159 Constructing application contexts ..........................

dependencies. Run ActiveMQ Artemis stand-alone, run it in integrated in your favourite Java EE application server, or run it embedded inside your own product. It's up to you. Seamless high availability for admin objects in the JCA resource adapter to facilitate deployment into 3rd-party Java EE application servers Ability to prevent an acceptor from automatically starting Upgrading from older versions This is no longer required as the Jolokia REST interface is now integrated into the console web application. If the following is absent and you desire to deploy the web console then add:

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.................................................................26 2.6.4. Deploying a Spring application context as JCA adapter ................................................. 27 2.6.5.Taskscheduling composed of a number of objects that collaborate with one another to form the application proper. The objects in an application can thus be said to have dependencies between themselves. The Java language blocks of primitive types and classes (and the means to define new classes), to rich full-featured application servers and web frameworks. One area that is decidedly conspicuous by its absence is any means

.................................................................26 2.6.4. Deploying a Spring application context as JCA adapter ................................................. 27 2.6.5.Taskscheduling composed of a number of objects that collaborate with one another to form the application proper. The objects in an application can thus be said to have dependencies between themselves. The Java language blocks of primitive types and classes (and the means to define new classes), to rich full-featured application servers and web frameworks. One area that is decidedly conspicuous by its absence is any means