Ò׽ؽØͼÈí¼þ¡¢µ¥Îļþ¡¢Ãâ°²×°¡¢´¿ÂÌÉ«¡¢½ö160KB

jspºÍservletÖض¨Ïò

Ò»¡¢        
         ÔÚÒ»¸öÉè¼ÆÁ¼ºÃµÄWebÓ¦ÓÃÖУ¬¶¼»á×ÛºÏʹÓÃServletºÍJSP¼¼Êõ¡£Servlet¿ØÖÆÒµÎñÁ÷ת£¬JSPÔò¸ºÔðÒµÎñ´¦Àí½á¹ûµÄÏÔʾ¡£´Ëʱ£¬½«´óÁ¿Óõ½Öض¨Ïò¼¼Êõ¡£
¡¡¡¡Öض¨Ïò¼¼Êõ¿ÉÒÔ·ÖΪÁ½À࣬һÀàÊÇ¿Í»§¶ËÖض¨Ïò£¬Ò»ÀàÊÇ·þÎñÆ÷¶ËÖض¨Ïò¡£¿Í»§¶ËÖض¨Ïò¿ÉÒÔͨ¹ýÉèÖÃÌض¨µÄHTTPÍ·£¬»òÕßд JavaScript½Å±¾ÊµÏÖ¡£±¾ÎÄÖ÷Ҫ̽ÌÖ·þÎñÆ÷¶ËÖض¨Ïò¼¼ÊõµÄʵÏÖ¡£ 
¡¡¡¡·þÎñÆ÷¶ËµÄÖض¨ÏòÏà¹ØÀà
¡¡¡¡·þÎñÆ÷¶ËµÄÖض¨Ïò¼¼ÊõÉæ¼°µ½javax.servlet.ServletContext¡¢ javax.servlet.RequestDispatcher¡¢javax.servlet.http.ServletRequest¡¢ javax.servlet.http.ServletResponseµÈ¼¸¸ö½Ó¿Ú¡£
¡¡¡¡·þÎñÆ÷¶ËµÄÖض¨Ïò·½Ê½
¡¡¡¡·þÎñÆ÷¶ËµÄÖض¨Ïò¿ÉÒÔÓÐÁ½ÖÖ·½Ê½£¬Ò»ÊÇʹÓÃHttpServletResponseµÄsendRedirect()·½·¨£¬Ò»ÊÇʹÓà RequestDispatcherµÄforward()·½·¨¡£ÏÂÃæ¶ÔÕâÁ½ÖÖ·½Ê½½øÐнéÉÜ¡£
¡¡¡¡HttpServletResponse.sendRedirect()·½·¨
¡¡¡¡HttpServletResponse½Ó¿Ú¶¨ÒåÁË¿ÉÓÃÓÚתÏòµÄsendRedirect()·½·¨¡£´úÂëÈçÏ£º
¡¡¡¡ public void sendRedirect(java.lang.String location)throws java.io.IOException 
¡¡¡¡Õâ¸ö·½·¨½«ÏìÓ¦¶¨Ïòµ½²ÎÊýlocationÖ¸¶¨µÄ¡¢ÐµÄURL¡£location¿ÉÒÔÊÇÒ»¸ö¾ø¶ÔµÄURL£¬Èç response.sendRedirect("http://java.sun.com") Ò²¿ÉÒÔʹÓÃÏà¶ÔµÄURL¡£Èç¹ûlocationÒÔ“/”¿ªÍ·£¬ÔòÈÝÆ÷ÈÏΪÏà¶ÔÓÚµ±Ç°WebÓ¦Óõĸù£¬·ñÔò£¬ÈÝÆ÷½«½âÎöΪÏà¶ÔÓÚµ±Ç°ÇëÇóµÄURL¡£ÕâÖÖÖض¨ÏòµÄ·½·¨£¬½«µ¼Ö¿ͻ§¶Ëä¯ÀÀÆ÷µÄÇëÇóURLÌøת¡£´Óä¯ÀÀÆ÷ÖеĵØÖ·À¸ÖпÉÒÔ¿´µ½ÐµÄURLµØÖ·£¬×÷ÓÃÀàËÆÓÚÉÏÃæÉèÖÃHTTPÏìӦͷÐÅÏ¢µÄʵÏÖ¡£
¡¡¡¡RequestDispatcher.forward()·½·¨
¡¡¡¡RequestDispatcherÊÇÒ»¸öWeb×ÊÔ´µÄ°ü×°Æ÷£¬¿ÉÒÔÓÃÀ´°Ñµ±Ç°request´«µÝµ½¸Ã×ÊÔ´£¬»òÕß°ÑеÄ×ÊÔ´°üÀ¨µ½µ±Ç°ÏìÓ¦ÖС£RequestDispatcher½Ó¿ÚÖж¨ÒåÁËÁ½¸ö·½·¨£¬²Î¼ûÈçÏ´úÂ룺
¡¡¡¡public interface RequestDispatcher {
¡¡¡¡¡¡void forward(ServletRequest request, ServletResponse response);
¡¡¡¡¡¡void include(ServletRequest request, ServletResponse response);
¡¡¡¡}
¡¡¡¡forward()·½·¨½«µ±Ç°µÄrequestºÍresponseÖض¨Ïòµ½¸ÃRequestDispacherÖ¸¶¨µÄ×ÊÔ´¡£ÕâÔÚʵ¼ÊÏîÄ¿ÖдóÁ


Ïà¹ØÎĵµ£º

jspÉú³Éhtml¾²Ì¬Ò³Ãæ´úÂë

<%@ page contentType="text/html;charset=GBK"%>
<%@page import="java.util.*"%>
<%@page import="java.io.*" %>
<%
//ÔÚÕâÀïÈç¹ûд³É“WEB-INF\templates\template.htm”³ÌÐò»á±¨´í
 String filePath = request.getRealPath("/")+"WEB-INF/templates/template.htm"; &nbs ......

jspÒ³ÃæÌøתÎÊÌâ

 ÕâÊÇÒ»¸öÓû§×¢²áµÄÒ³Ã棬²¿·Ö´úÂ루ûÓдíÎó£©ÒÑÂÔ£¬¿ÉÊDz»ÄÜʵÏÖformµÄactionÌøת
checkform()ÀïÃ÷Ã÷ÓÐdocument.form.submit()£¬¾ÍÊDz»ÄÜÌøת£¬
 
ÄÜ°ïÎÒ¿´ÏÂÎÊÌâ³öÔÚÄÄÂð£¿
ÕâÊÇÕÕ×ÅÊéÉϵÄÀý×ÓдµÄ£¬×¢²áºÍÖØÖö¯¶¼×÷ÊÇͨ¹ýͼƬÀ´´¦ÀíµÄ¡£
Çë²»Áߴͽ̣¬ÔÚϲ»Ê¤¸Ð¼¤¡£¡£¡£
<%@ page contentType="te ......

jspÉÏ´«Îļþµ½Êý¾Ý¿âºÍ´ÓÊý¾Ý¿âÏÂÔØÎļþ

ÓÃÁËcommons-fileupload-1.2.jarºÍcommons-io-1.3.2.jarÕâÁ½¸ö°ü¡£
save.jsp
<%@ page language="java" contentType="text/html;charset=utf-8"%>
<%@ page import="java.util.*"%>
<%@ page import="java.io.*"%>
<%@ page import="java.util.regex.*"%>
<%@ page import="org.apache.co ......

jspÖÐͨ¹ýURLµØÖ·»ñÈ¡¸ÃµØÖ·Ò³ÃæÖеľ²Ì¬Ò³Ãæ


try {
            URL url = new URL("http://www.163.com");
            InputStream is = url.openStream();
            byte[] buffer = new byte[1024];
           ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØͼ | ¸ÓICP±¸09004571ºÅ