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

JSP»ù´¡ÖªÊ¶


JSPԭʼ´úÂëÖаüº¬ÁËJSPÔªËØºÍTemplate(Ä£°å) dataÁ½Àà 
Template dataÖ¸µÄÊÇJSPÒýÇæ²»´¦ÀíµÄ²¿·Ö£¬¼´±ê¼Ç<%……%>ÒÔÍâµÄ²¿·Ö£¬
ÀýÈç´úÂëÖеÄHTMLµÄÄÚÈÝµÈ £¬ÕâЩÊý¾Ý»áÖ±½Ó´«Ë͵½¿Í»§¶ËµÄä¯ÀÀÆ÷
JSPÔªËØÔòÊÇÖ¸½«ÓÉJSPÒýÇæÖ±½Ó´¦ÀíµÄ²¿·Ö£¬ÕâÒ»²¿·Ö±ØÐë·ûºÏJSPÓï·¨£¬
·ñÔò»áµ¼Ö±àÒë´íÎó¡£
¶¯Ì¬µÄJava´úÂë(±ØÐë°üº¬ÔÚÌØ¶¨µÄ±êÇ©ÖУ©
1.JSP±ê×¼Ö¸Áî
2.JSP³ÌÐò´úÂëÔªËØ
3.JSP±ê×¼¶¯×÷
4.±êÇ©¿â
1)±ê×¼Ö¸ÁîÓÃÀ´É趨JSPÍøÒ³µÄÕûÌåÅäÖÃÐÅÏ¢JSPÖеÄÈ«¾Ö±äÁ¿£¬ÉùÃ÷À࣬ҪʵÏֵķ½·¨ºÍÊä³öÄÚÈݵÄÀàÐ͵È
ÌØµã:ËüÃDz¢²»Ïò¿Í»§¶Ë²úÉúÈκÎÊä³ö£¬
ËùÓеÄÖ¸ÁîÔÚJSPÕû¸öÎļþ·¶Î§ÄÚÓÐЧ
Ϊ±àÒëÒë½×¶ÎÌṩÁËÈ«¾ÖÐÅÏ¢
ÈýÖÖ±ê×¼Ö¸Á
1.page£ºÉ趨JSPÕûÌåÐÅÏ¢
ÓÃÓÚ¶¨ÒåJSPÒ³ÃæµÄ¸÷ÖÖÊôÐÔ£¬ÎÞÂÛpageÖ¸Áî³öÏÖÔÚJSPÒ³ÃæÖеÄʲôµØ·½£¬
Ëü×÷ÓõͼÊÇÕû¸öJSPÒ³Ãæ£¬ÎªÁ˱£³Ö³ÌÐòµÄ¿É¶ÁÐÔºÍ×ñÑ­Á¼ºÃµÄ±à³Ìϰ¹ß£¬
pageÖ¸Áî×îºÃÊÇ·ÅÔÚÕû¸öJSPÒ³ÃæµÄÆðʼλÖá£
2.include£ºÔÚJSPÄÚ°üº¬ÆäËûJSPÄÚÈÝ
ÓÃÓÚ֪ͨJSPÒýÇæÔÚ·­Ò뵱ǰJSPÒ³ÃæÊ±½«ÆäËûÎļþÖеÄÄÚÈݺϲ¢½øµ±Ç°JSPÒ³Ãæ×ª»»³ÉµÄServletÔ´ÎļþÖУ¬
ÕâÖÖÔÚÔ´Îļþ¼¶±ð½øÐÐÒýÈëµÄ·½Ê½³ÆÖ®Îª¾²Ì¬ÒýÈ룬
µ±Ç°JSPÒ³ÃæÓ뾲̬ÒýÈëµÄÒ³Ãæ½ôÃܽáºÏΪһ¸öServlet¡£
×¢Ò⣺
³ýÁËimportºÍpageEncodingÊôÐÔÖ®Í⣬pageÖ¸ÁîµÄÆäËûÊôÐÔ²»ÄÜÔÚÕâÁ½¸öÒ³ÃæÖÐÓв»Í¬µÄÉèÖÃÖµ
Óï·¨£º
<%@ include file="relativeURL"%>
fileÊôÐÔµÄÉèÖÃÖµ±ØÐëʹÓÃÏà¶Ô·¾¶£¬Èç¹ûÒÔ“/”¿ªÍ·£¬
±íʾÏà¶ÔÓÚµ±Ç°WEBÓ¦ÓóÌÐòµÄ¸ùĿ¼£¨×¢Òâ²»ÊÇÕ¾µã¸ùĿ¼£©£¬
·ñÔò£¬±íʾÏà¶ÔÓÚµ±Ç°Îļþ¡£
3.taglib£ºÔÚJSPÄÚʹÓÓ×Ô¶¨Òå±êÇ©”£¬ÕâÖÖ·½Ê½¸ü¼ÓÁé»î


Ïà¹ØÎĵµ£º

ÎåÖÖJSPÒ³ÃæÌø×ª·½·¨Ïê½â(2)

3. £¼jsp:forward page="" /£¾
ËüµÄµ×²ã²¿·ÖÊÇÓÉRequestDispatcherÀ´ÊµÏֵģ¬Òò´ËËü´øÓÐRequestDispatcher.forward()·½·¨µÄÓ¡¼Ç¡£
Èç¹ûÔÚ֮ǰÓкܶàÊä³ö,Ç°ÃæµÄÊä³öÒÑʹ»º³åÇøÂú,½«×Ô¶¯Êä³öµ½¿Í»§¶Ë,ÄÇô¸ÃÓï¾ä½«²»Æð×÷ÓÃ,ÕâÒ»µãÓ¦¸ÃÌØ±ð×¢Òâ¡£
ÁíÍâҪעÒ⣺Ëü²»Äܸıää¯ÀÀÆ÷µØÖ·£¬Ë¢ÐµĻ°»áµ¼ÖÂÖØ¸´Ìá½»
4. ÐÞ¸ÄHTTP ......

°ÑJSP·Åµ½WEB INFºóÒÔ±£»¤JSPÔ´´úÂë

    °ÑÄÇЩÏÞÖÆ·ÃÎʵÄ×ÊÔ´£¨±ÈÈç˵jspÔ´´úÂ룩·Åµ½WebÓ¦ÓõÄWEB-INFĿ¼Ï£¬¶ÔÓÚ/web-INF/¼°Æä×ÓĿ¼£¬²»ÔÊÐíÖ±½ÓµÄ¹«¹²·ÃÎÊ£¬ËùÒԾͿÉÒÔÆðµ½±£»¤ÕâЩ´úÂëδ¾­ÊÚȨµÄ·ÃÎʺͿúÊÓ£¬¸üºÃµÄ±£»¤ÁËÔ´´úÂë¡£
    ͨ³£JSP¿ª·¢ÈËÔ±»á°ÑËûÃǵÄÒ³ÃæÎļþ´æ·ÅÔÚWebÓ¦ÓÃÏàÓ¦µÄ×ÓĿ¼Ï¡£ÕâÖÖ·½·¨µÄÎÊÌâÊÇ ......

jsp servlet ÖÐsetAttribute()ºÍgetParameter()Çø±ð

setAttribute()ÊÇÓÃÓÚ·þÎñÆ÷¶ËÉèÖÃÊôÐÔÏò¿Í»§¶Ë·¢Ë͸ÃÊôÐÔ£¬ÔÚ¿Í»§¶Ëͨ¹ýgetAttribute£¨£©»ñµÃÊôÐÔ¡£setAttribute()Ò²ÄÜ´«µÝ¶ÔÏó¡£
setParameter()Êǿͻ§¶ËÏò·þÎñÆ÷¶Ë·¢ËÍÊôÐÔ£¬Ö»ÄÜ´«×Ö·û£¬ÓÃÓÚget/postµÄÊýÖµ´«µÝ£¬ÔÚ·þÎñ¶ËÓÃgetParameter£¨£©»ñÈ¡£¬Ò³ÃæÖÐÓÐforward´Ó¶¨ÏòÒ³ÃæµÄµØÖ·ÖеIJÎÊýÒ²ÄÜÓÃgetParameter£¨£©»ñÈ¡¡ ......

´«ÖDz¥¿Í——JSP£¨ËÄ£©¹¤³§Ä£Ê½

Ò»£º¹¤³§Ä£Ê½³öÏÖµÄÔ­Òò
    Ò»°ãÉè¼ÆÄ£Ê½£º
view plaincopy to clipboardprint?
 
interface Fruit{   
        public void eat();   
    }   
class Apple implements Fruit{   
     &n ......

ÀûÓÃjspÉÏ´«excel

Ò»¡¢ÉÏ´«
ÒýÈë°ü£ºorg.apache.commons.fileupload.*
jsp´úÂ룺 DiskFileUpload fu = new DiskFileUpload();
      List list = fu.parseRequest(request);
      if(list != null){
       System.out.println(list.size());
  ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØÍ¼ | ¸ÓICP±¸09004571ºÅ