Ò׽ؽØÍ¼Èí¼þ¡¢µ¥Îļþ¡¢Ãâ°²×°¡¢´¿ÂÌÉ«¡¢½ö160KB

jspÖÐ×÷ÓÃÓòscope¸ÅÄî

¼¸ºõËùÓеÄWeb¿ª·¢ÓïÑÔ¶¼Ö§³ÖSession¹¦ÄÜ£¬ServletÒ²²»ÀýÍâ¡£ Servlet/JSPÖеÄSession¹¦ÄÜÊÇͨ¹ý×÷ÓÃÓò(scope)Õâ¸ö¸ÅÄîÀ´ÊµÏֵġ£
×÷ÓÃÓò·ÖΪËÄÖÖ£¬·Ö±ðΪ£º
page
ÔÚµ±Ç°Ò³ÃæÓÐЧ(½öÓÃÓÚJSPÖÐ)
request
ÔÚµ±Ç°ÇëÇóÖÐÓÐЧ
session
ÔÚµ±Ç°»á»°ÖÐÓÐЧ
application
ÔÚËùÓÐÓ¦ÓóÌÐòÖÐÓÐЧ
ÊDz»ÊÇ¿´²»Ì«Ã÷°×£¿pageÒòΪ½öÓÃÓÚJSPÖУ¬ÕâÀïÖ»½²ÊöÆäËûÈýÖÖ×÷ÓÃÓò¡£Ê×ÏÈÒªÉùÃ÷µÄÒ»µã£¬Ëùν“×÷ÓÃÓò”¾ÍÊÇ“ÐÅÏ¢¹²ÏíµÄ·¶Î§”£¬Ò²¾ÍÊÇ˵һ¸öÐÅÏ¢Äܹ»ÔÚ¶à´óµÄ·¶Î§ÄÚÓÐЧ¡£
»°ËµÎäËÉÒ»ÈÕÀ´µ½¾°Ñô¸Ú£¬¼ûÒ»ÆìÖÄÓ­·çÆ®ÑÆì×ÓÉÏÊéÎå¸ö´ó×Ö“ÈýÍë²»¹ý¸Ú”¡£ÎäËɽеÀ£º“µê¼Ò£¬ÄÃÈýÍë¾ÆÀ´£¬ÔÙÇÐÁ½½ïÊìÅ£È⣡”µêС¶þÓ¦ÉùµÀ£º“ÈýÍëºÃ¾Æ£¬¶þ½ïÊìÅ£Èâ啰¡«¡«”ÀïÃæ³øÊ¦¸Ïæµ±µ±µ±µ±ÇкÃÅ£È⣬µêС¶þµ¹ÉÏÈýÍë¾Æ£¬µêС¶þ¶ËÉÏǰÀ´¡£
ÎäËɹ¾ß˹¾ßËÁ¬¸ÉÈýÍ룬½ÐÒ»Éù“ºÃ¾Æ£¡µê¼Ò£¬ÔÙÀ´ÈýÍ룡”С¶þæÓÖµ¹ÉÏÈýÍëºÃ¾Æ£¬ÎäËÉÒ»Òû¶ø¾¡¡£¾ÍÕâÑùǰǰºóºóÎäËÉÒ»¹²ºÈÁËÊ®°Ë´óÍ󡣸¶ÁËÕʸÕÒª×ߣ¬µêС¶þµÀ£º “¿Í¹Ù£¬ÕâÇ°ÃæÉ½ÉÏÓÐ´ó³æ£¬¿Í¹Ù¸Õ¸ÕºÈÍêÊ®°ËÍë¾Æ¿ÖŹý²»µÃ¸Ú£¬²»ÈçÔÚСµêÔÝסһҹ£¬´ýÃ÷ÌìºÍÁÔ»§Ò»Í¬¹ý¸ÚÆñ²»ÊǺã¿”
Ö®ºóÎäËÉ˵ʲô¾ÍÁô´ý¸÷λ¿´¹Ù×Ô¼ºÈ¥»ØÒäÀ²¡£ÔÚÕâ¶ÎÎäËÉ´ò»¢ÖУ¬´ó¼ÒÓÐûÓп´µ½Ð©ÊìϤµÄ¶«Î÷£¿
·                         ÎäËÉ: ä¯ÀÀÆ÷¡£
·                         ¾Æ¹Ý: ·þÎñÆ÷¡£
·                         µêС¶þ¡¢³øÊ¦: Servlet»òÕßJSP¡£
·                         À´ÈýÍëºÃ¾Æ£¡: ä¯ÀÀÆ÷Ïò·þÎñÆ÷·¢³öHTTPÇëÇó¡£
·                       


Ïà¹ØÎĵµ£º

ajaxÇëÇójspÎļþµÄÎÊÌâ

       Ò»¸öajaxÇëÇóÒ»¸öjspÎļþ£¬²Ù×÷³É¹¦,jspÎļþout.println("1");µ«ÊÇÿ´Î³É¹¦ºóxmlHttp.responseText=='1'×ÜÊÇΪfalse£¬
ÓÃencodeURIComponent¿´xmlHttp.responseText£¬·¢ÏÖ×îºó¶àÁË%0A%0D£¬°Ù¶ÈһϠÓÃÀ´ÊÇ»»ÐУ¬
jspÎļþÖеÄout.println……°ÑlnÈ¥µôÔÙ´Î±È½Ï ³É¹¦ = =¡ ......

Jsp·½Ãæ

1¡¢forward ºÍredirectµÄÇø±ð
´ð£ºforwardÊÇ·þÎñÆ÷ÇëÇó×ÊÔ´£¬·þÎñÆ÷Ö±½Ó·ÃÎÊÄ¿±êµØÖ·µÄURL£¬°ÑÄǸöURLµÄÏìÓ¦ÄÚÈݶÁÈ¡¹ýÀ´£¬È»ºó°ÑÕâЩÄÚÈÝÔÙ·¢¸øä¯ÀÀÆ÷£¬ä¯ÀÀÆ÷¸ù±¾²»ÖªµÀ·þÎñÆ÷·¢Ë͵ÄÄÚÈÝÊÇ´ÓÄĶùÀ´µÄ£¬ËùÒÔËüµÄµØÖ·À¸Öл¹ÊÇÔ­À´µÄµØÖ·¡£
    redirect¾ÍÊÇ·þÎñ¶Ë¸ù¾ÝÂß¼­,·¢ËÍÒ»¸ö״̬Âë,¸æËßä ......

JSP¿ìËÙÈëÃŽ̳̗—ȫʮ½²

µÚÒ»½²£¨²Î¿¼¡¶Java Web³ÌÐòÉè¼Æ»ù´¡½Ì³Ì¡·µÚ1Õ£©
1 JSP ºÍ JavaµÄ¹ØÏµ
   Ò»°ãJavaÖ¸µÄ±ê×¢°æ Java SE
   ÁíÍâÁ½¸ö°æ±¾£ºJava EE ºÍ Java ME
   JSPÊôÓÚJava EEµÄÒ»²¿·Ö¡£
   Java EE£º
     ×é¼þ£ºWeb²ã×é¼þ£¨JSP£«Servlet£©£«ÒµÎñ²ã×é¼þ£¨EJB£©
&n ......

jspÒ³Ãæ·Åµ½WEB INF ¸úwebrootµÄÇø±ð

JSP´æ·ÅÔÚ WEB-INF ¸úwebrootµÄÇø±ð
    ·ÅÔÚwebrootÏÂÃæ:Óŵ㣬³ÌÐò½á¹¹ÇåÎú£¬±ãÓÚ±àÂëºÍά»¤£»È±µã£¬Òª¼Ó¹ýÂËÆ÷¡£
·ÅÔÚweb-infÏÂÃæ£ºÓŵ㣬²»ÓùýÂËÆ÷£»È±µã£¬´òÂÒÁ˳ÌÐò½á¹¹£¬±àÂëºÍά»¤Âé·³µã¡£
    webrootÆäʵÊÇÒ»¸öÃû×Ö¶øÒÑ£¬ÔÚ²¿ÊðºóÊÇ¿´²»µ½µÄ£¬·ÃÎʵÄʱºòÔÚurlÀï¿Ï¶¨Ò²ÊÇ ......

jsp°ÑͼƬдµ½Êý¾Ý¿âµÄ´úÂë,¶àÖÖд·¨

ÓÉÓÚÒª×öÉÏ´« ¾ÍÕÒÁ˸öÀý×Ó Áô×Ųο¼
ÉÏ´«£ºÐèÒªsmartupload×é¼þ  
import com.jspsmart.upload.*;
import javax.servlet.*;
import javax.servlet.http.*;
import java.io.*;
import java.util.*;
/**
* ÉÏ´«¹«¹²Àà,¶ÔSmartUpload½øÐÐÁË·â×°
* ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØÍ¼ | ¸ÓICP±¸09004571ºÅ