Spring3.0以後就找不到ContextLoaderServlet這個類了。跟了一下包也確實沒有ContextLoaderServlet這個類了。
然後想確認一下查看 spring changelog 果然。
Changes in version 3.0.0.M1 (2008-12-05)
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* revised project layout and build system (module-based sources, bundle repository)
* updated entire codebase for Java 5 code style (generics, varargs, StringBuilder)
* updated to JUnit 4.5 and JRuby 1.1
* removed WebLogic 8.1 and WebSphere 5.1 support
* removed native TopLink API support (superseded by JPA)
* removed Commons Attributes support (superseded by Java 5 annotations)
* removed Jakarta JSTL support for JSP 1.2 (superseded by JSP 2.0)
* removed outdated Struts 1.x Action delegation support
* removed ContextLoaderServlet and Log4jConfigServlet
* deprecated form controller hierarchy in favor of @MVC form object handling
* deprecated JUnit 3.8 test class hierarchy in favor of test context framework
* revised TaskExecutor interface to extend "java.util.concurrent.Executor" now
* introduced Spring EL parser in org.springframework.expression package
* introduced #{...} expression support in bean definitions
* introduced @Value annotation for embedded expression support
* introduced @PathVariable annotation for MVC handler methods
* introduced ShallowEtagHeaderFilter
* introduced AbstractAtomFeedView and AbstractRssFeedView
* introduced default value support for @RequestParam
* introduced @RequestHeader annotation for MVC handler methods
* introduced "spring:url" and "spring:param" JSP tags
現在沒法使用ContextLoaderServlet方式獲取了。那麼建議使用ContextLoaderListener方式獲取。
ServletContext sc = request.getSession().getServletContext();
ApplicationContext ac = WebApplicationContextUtils.getWebApplicationContext(sc);