JSP常见面试题汇总.doc

11doGet()doPost()JspformmethodgetdoGet()postdoPost()12servletwebservletservletinit()servletservice()do*()webservletdestroy()13servlet14requestsessionapplicationcookie15JSPServletServletServletJSPservletServletJSPServletJavaHTMLJSPJavaHTML.jspJSPServlet16ServletsJSP page Java servlet include include servlet servlet JSP request Web Web forward include session Web Web application Web Web -jsp,html1. JSPJava Servlet,HTML,2. Browser/ServerWeb,HTMLJSP,3. JSP,TagSupportBodyTagSupportTagSupportdoStartTagdoEndTagTagBodyTagSupportdoAfterBodyFilter:Servlet/JSPServlet/JSPServlet/JSPweb.xmlServlet/JSPservletservletjava.servlet.Filter1 void init(FilterConfig config) throws ServletException:service4. void destroy();service5. Void doFilter(ServletRequest req,ServletResponse res,FilterChain chain) throws IOException,ServletException;forward,redirect ?forwardredirect: response.sendRedirect(): request.getRequestDispatcher().forward(request, response);jsprequestresponseoutsessionapplicationpageContextconfigpageexception(1) HttpServletRequestRequestHTTP(2) HttpServletResponseRespone(3) JspWriterout;OutJspWriter(4) HttpSessionsessionWeb(5) ServletContexapplicationapplication.(6) PageContextPageContext,JSPJSP(7) ServletConfigConfigServlet(8) ObjectPagethisJSPObjectJSPJSPJSP(9)ExceptionJSPJSPApplicationdoPost,doGet?1servletdoGet2htmlmethod3getpost.geturl8K, postjspJSPrequest,session,application,cookierequest.setAttribute(key,value)session.setAttribute(key,value)application.setAttribute(key,value)webiso8859-1text = new String( text.getBytes(iso8859-1),GBK);iso8859-1byteGBKservletservletservletservletservletAPIservletservletservletservletservletservletinit()servletservice()destroy()servletservletservletservletBSCSB/STCP/IPHTTPBrowserWebWebURLWebWebHTMLc/sB/SqqJSPSERVLETJSPSERVLETCLASSJSPCSERVLETCJAVACLASSjspservletJSPINCLUDEINCLUDEINCLUDEjsp:include INCLUDEinclude,JSP9request,response,pagecontext,session,application,out,config,page,exceptionrequestCHttpServletRequestresponseCHttpServletResponsesessionCHttpSession pagecontextCPageContextapplicationCServletContext outCJspWriter configCServletConfig pageCObject exceptionCThrowab service.1. cookie C/COOKIE2. session Cookie.srevice3. url.IECookieCookie session 4.JSPJavaJSPServlet? JSP ,MYSQL,SQL2005.SQL2005mysql SQL2005servletServletHttpServletHttpServletWebWebWebWebHttpServletdoGetServletHttp GETHttp GETdoPostServletHttp POSTHttp POSTdoPutServletHttp PUTHttp PUTdoDeleteServletHttp DELETEHttp DELETEinitdestroyServletserviceHTTPserviceHandlerdoXXXHTTPdoOptionsdoTraceservicedoTracedoOptionsHTTP1.1 TRACEOPTIONSServletServletProtected void doGet(HttpServletRequest req,HttpServletResponse resp)throws ServletException,IOExceptionserviceHTTP GETGETWebURLGETdoGetHTTP HEADHEADGETheaderheadersPrintWriterheaderscontent typeencodingPrintWriter