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.

Implementations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49 3.5.4. Application Events . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 140 3.6.1. Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 151 Setup Choices. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 151 Setup Features . . . .

Abstraction . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 1.2.1. Hibernate Transaction Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62 1.8. Application server-specific integration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 157 5.3.1. SessionFactory Setup in a Spring Container. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7. Cluster setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63 7.1. Cluster setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 136 11.1.1. Initial Setup. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Documentation - 7 curl -X POST http://localhost:8181/context.json?sessionId=1234 \ -H "Content-Type: application/json" \ -d @- <<'EOF' { "source": { "itemId":"homepage", "itemType":"page"

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 162 Connection Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . interoperability. It is of interest to libraries and infrastructure components but less useful as an application API, because it is too low-level. Applications need a higher-level and richer, functional API small library or a set of utilities that an application can use to route and handle requests. The big difference with annotated controllers is that the application is in charge of 3 request handling from

--request POST 'http://localhost:8181/cxs/scopes' \ -u 'karaf:karaf' \ --header 'Content-Type: application/json' \ --data-raw '{ "itemId": "apache", "itemType": "scope" }' Is replaced by the following /cxs/scopes' \ --header 'Authorization: Basic a2FyYWY6a2FyYWY=' \ --header 'Content-Type: application/json' \ --data-raw '{ "itemId": "unomi-tracker-test", "metadata": { "id": "unomi-tracker-test" ents/search' \ --header 'Authorization: Basic a2FyYWY6a2FyYWY=' \ --header 'Content-Type: application/json' \ --data-raw '{ "sortby" : "timeStamp:desc", "condition" : { "type" : "matchAllCondition"

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 as dependencies Application contexts and Resource paths Constructing application contexts Constructing ClassPathXmlApplicationContext instances - shortcuts Wildcards in application context constructor dependency inject domain objects with Spring Unit testing @Configurable objects Working with multiple application contexts Other Spring aspects for AspectJ Configuring AspectJ aspects using Spring IoC Load-time

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 as dependencies Application contexts and Resource paths Constructing application contexts Constructing ClassPathXmlApplicationContext instances - shortcuts Wildcards in application context constructor dependency inject domain objects with Spring Unit testing @Configurable objects Working with multiple application contexts Other Spring aspects for AspectJ Configuring AspectJ aspects using Spring IoC Load-time

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 ..........................