WicketFilter <init-param> applicationClassName org.wicketTutorial.WicketApplication init-param> specifies which page to use as a homepage for our application. Another important method is init(): protected void init() 9 This method is called when our application is loaded by the web server (Tomcat, void init() { super.init(); // add your configuration here } } Since this is a very basic example of a Wicket application, we don’t need to specify anything inside the init method

WicketFilter <init-param> applicationClassName org.wicketTutorial.WicketApplication init-param> specifies which page to use as a homepage for our application. Another important method is init(): protected void init() This method is called when our application is loaded by the web server (Tomcat, Jetty void init() { super.init(); // add your configuration here } } Since this is a very basic example of a Wicket application, we don’t need to specify anything inside the init method

WicketFilter <init-param> applicationClassName org.wicketTutorial.WicketApplication init-param> specifies which page to use as a homepage for our application. Another important method is init(): protected void init() This method is called when our application is loaded by the web server (Tomcat, Jetty void init() { super.init(); // add your configuration here } } Since this is a very basic example of a Wicket application, we don’t need to specify anything inside the init method

WicketFilter <init-param> applicationClassName org.wicketTutorial.WicketApplication init-param> specifies which page to use as homepage for our application. Another important method is init(): protected void init() This method is called when our application is loaded by the web server (Tomcat, Jetty void init() { super.init(); // add your configuration here } } Since this is a very basic example of a Wicket application, we don’t need to specify anything inside the init method

AbstractFactoryBean's early singleton proxy handles equals, hashCode and toString calls locally (avoiding eager init) * PropertyPathFactoryBean logs a warning if the target bean is still in creation at the time of obtaining specified object names * added "allowEagerInit" property to MBeanExporter, for autodetecting lazy-init beans and FactoryBean-produced objects * added "environment" property to MBeanClientInterceptor and @RequestMapping path match as best path match * @MVC handler methods, model attribute methods and init binder methods allow for overriding a generic superclass method * @ModelAttribute annotated handler

AbstractFactoryBean's early singleton proxy handles equals, hashCode and toString calls locally (avoiding eager init) * PropertyPathFactoryBean logs a warning if the target bean is still in creation at the time of obtaining specified object names * added "allowEagerInit" property to MBeanExporter, for autodetecting lazy-init beans and FactoryBean-produced objects * added "environment" property to MBeanClientInterceptor and @RequestMapping path match as best path match * @MVC handler methods, model attribute methods and init binder methods allow for overriding a generic superclass method * @ModelAttribute annotated handler

applications Supported operating systems Unix/Linux services Installation as an init.d service (System V) Securing an init.d service Installation as a systemd service Customizing the startup script Customizing init parameters. 7. ServletContext init parameters. 8. JNDI attributes from java:comp/env. 9. Java System properties (System

qualifiers and primary flag in equals comparison * AbstractAutowireCapableBeanFactory's handling of lazy-init singletons is thread- safe again * AbstractAutowireCapableBeanFactory only invokes "predictBeanType" HandlerMethodInvoker does not copy whole model Set for session attribute exposure anymore (avoiding lazy value init) * fixed JSP form tags to properly return SKIP_BODY instead of the non-defined EVAL_PAGE (for WebLogic springframework.jmx * MBeanExporter's autodetection does not cause CannotLoadBeanClassException for lazy-init beans (Spring 2.0 compatible) Package org.springframework.jndi * JndiLocatorSupport tries fallback

applications Supported operating systems Unix/Linux services Installation as an init.d service (System V) Securing an init.d service Installation as a systemd service Customizing the startup script Customizing init parameters. 7. ServletContext init parameters. 8. JNDI attributes from java:comp/env. 9. Java System properties (System

Servlet 部署 Servlet 示例 重写 init 方法 当 Web 服务器创建 Servlet 对象后，会自动调用 init 方法完成 初始化功能，一般将耗时的连接数据库和打开外部资源文件的操 作放在 init 方法中。 init 方法在 Web 容器创建 Servlet 对象后立即执行，且只执行 一次。 1 public void init(ServletConfig config) throws throws ServletException { 2 super.init(config); 3 // 这�放置初始化工作代码. 4 } 在 init 方法中使用 Web 容器传递的 config 对象取得 Servlet 的 各种配置初始参数，进而使用这些参数完成读取数据库或其他外 部资源。 大纲 Web 基础 Servlet 概述 Servlet 编程 Servlet 生命周期 Servlet Servlet 映射，如果 没有则返回错误信息给浏览器。 4. 有 servlet 映射时，先检查是否有实例在运行。 5. 如果没有实例运行，则创建 Servlet 类的对象，调用其构造 方法，然后调用 init() 方法。 6. 如果有实例在运行，则根据请求的方法是 GET 或 POST， 自动调 doGet() 或 doPost() 方法。将请求对象和响应对象 传给 doGet() 或 doPost()