browser = request.getHeader("User-Agent"); ▶ int getIntHeader(String name) 1 int size = request.getIntHeader("Content-Length"); ▶ long getDateHeader(String name) 1 long datetime = request.getDateHe getDateHeader("If-Modified-Since"); ▶ Enumeration getHeaderNames() 1 for (Enumeration e = request.getHeaderNames(); e.hasMoreElements(); ) { 2 String headerName = (String) e.nextElement(); 3 System.out.println("Name␣=␣" 参数 1 productSearch.do?productName=Acer 以下代码可以取得以上的参数名为 productName 的数据： 1 String productName = request.getParameter("productName"); 大纲 HTTP 请求内容 Java EE 请求对象 取得请求中包含的提交参数数据 O String[] getParameterValues(String

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 1.3.4. Result Handling. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 Handling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 1.4.2. Request Mapping. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

out MessageSourceSupport base class from AbstractMessageSource, providing common MessageFormat handling * DelegatingMessageSource resolves message arguments in default messages even if there is no parent CodebaseAwareObjectInputStream in RMI support * re-enabled PathMatchingResourcePatternResolver's JarURLConnection handling (accidentally disabled in 2.5.4) Package org.springframework.ejb * "jee:local/remote-slsb" accepts class * MessageListenerAdapter and JmsInvokerServiceExporter use message id as correlation id if no request correlation id set Package org.springframework.jmx * MBeanExporter performs default MBeanServer

cleans up cached dependency information when destroying a bean * AbstractBeanFactory rejects getBean request with arguments in case of a pre- existing singleton of same name as well * AbstractAutowireCapableBeanFactory file nor a directory) Package org.springframework.web * HttpRequestHandlerServlet propagates HTTP request locale into Spring's LocaleContextHolder * revised "WebUtils.extractFilenameFromUrlPath" to search (as accepted by most servlet containers) * DispatcherServlet removes error-view-driven servlet request attributes after rendering (for Tomcat compatibility) * exposed "getParamName()" method on LocaleChangeInterceptor

cleans up cached dependency information when destroying a bean * AbstractBeanFactory rejects getBean request with arguments in case of a pre- existing singleton of same name as well * AbstractAutowireCapableBeanFactory file nor a directory) Package org.springframework.web * HttpRequestHandlerServlet propagates HTTP request locale into Spring's LocaleContextHolder * revised "WebUtils.extractFilenameFromUrlPath" to search (as accepted by most servlet containers) * DispatcherServlet removes error-view-driven servlet request attributes after rendering (for Tomcat compatibility) * exposed "getParamName()" method on LocaleChangeInterceptor

JdkDynamicAopProxy's "Method.setAccessible" handling to avoid unnecessary calls * Cglib2AopProxy throws AopConfigException instead of AspectException, for better root cause handling * CGLIB proxies handle "hashCode" "newFileUpload" template method for any FileUpload instance * refined FrameworkServlet to log a request handling failure at debug level rather than error level * added "propertyEditorRegistrar" bean property reference * refined SimpleMappingExceptionResolver to only apply a "defaultStatusCode" to a top-level request (not to an include) * added "clearCache()" method to AbstractCachingViewResolver, for removing all

always execute before resource cleanup * added "lookupSessionFactory(request)" callback to OpenSessionInViewFilter, for request-dependent SessionFactory lookup * SessionFactoryUtils/PersistenceManag * DispatcherServlet does not override "doHead" anymore, leveraging HttpServlet's default "HEAD" handling via "doGet" * factored out protected "resolveViewName" method from DispatcherServlet's "render" supported methods (in addition to "GET" and "POST") * added overloaded "showForm" version with request, response, errors and control model to SimpleFormController * added "suppressValidation" calls

LocalSessionFactoryBean offers protected "executeSchemaStatement" method for overriding the failure handling * added "configLocations" property to LocalSessionFactoryBean for Hibernate3, allowing to load NestedServletException wherever a root cause gets wrapped by a ServletException (for nicer root cause handling) * "contextConfigLocation" params in "web.xml" support "${...}" style placeholders for system properties perform auto-detachment of the result * changed TopLink ServerSessionFactory's managed client handling to proxy-based, in base class AbstractSessionFactory * added support for TopLink SessionBroker to