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

Java Web µÚ10Ìì ELºÍJSTL 2

ËÄ¡¢JSTLµÄÓ÷¨
ÔÚÆ½³£µÄʹÓÃÖÐÎÒÃÇÒ»°ãÀûÓÃ
EL
¿ØÖƱäÁ¿ÒÔ¼°±äÁ¿µÄÊä³ö£¬ÀûÓÃ
JSTL
¿ØÖÆËãÊõÂß¼­¡£
JSTL
ÊÇÒ»ÖÖ±ê¼Ç¡£
1.      

JSTL
µÄµ¼Èë
                        

i.             

ÊÖ¶¯µ¼Èë¼Ü°ü£¬ÌîÐ´ÕæÊµµÄ
uri=http://java.sun.com/products/jsp/jst1
                      

ii.             

ÀûÓÃ
Myeclipse
µ¼Èë¼Ü°ü£¬ÌîдµÄ
uri
Ò²±ä³ÉÏà¶Ô·¾¶
2.      

JSTL
ÖеÄÁ÷³Ì¿ØÖÆ
a)      

Ìõ¼þ´¦Àí
ÀýÈ磺£¨¾ÍËãÊÇ
String
ÀàÐ͵ÄÒ²ÊÇÀûÓÃ
= =
ÅжÏÊÇ·ñÏàͬ£©
<c:if
test=”${x==9}”>
${x}
</c:if>
ÀýÈ磺
<c:choose>
<c:when text=” ${x==9}”>
This is when term
</c:when>
<c:otherwise>
This is otherwise term
</c:otherwise>
</c:choose>
b)     

Ñ­»·¿ØÖÆ
ÆÕͨѭ»·£º
      

<c:forEach var=”x” begin=” 1” end=”9”>
             

${x}
</c:forEach>
Êý×éµÈ±éÀú£º
      

<h3>
±éÀúÊý×é
</h3>
      

<%int[] sss = {22,34,21};
      

   

pageContext.setAttribute("ss", sss, PageContext.PAGE_SCOPE);
      

  
for(int
s:sss){
      

    

out.print(s);
      

  
}
&


Ïà¹ØÎĵµ£º

¹ØÓÚJavaµÄ¾²Ì¬³õʼ»¯¿é

      ÃæÊÔʱºò¾­³£»áÅöµ½µÄÒ»¸öÎÊÌ⣬¸øÄãÁ½¸ö¼Ì³Ð¹ØÏµµÄjavaÀàµÄ´úÂ룬ÕâÁ½¸öÀàÖÐÓй¹Ôì·½·¨ºÍһЩ±äÁ¿£¬È»ºó»¹ÓÐһЩ·½·¨£¬·½·¨Àïͨ³£Óн«±äÁ¿Êä³öµÄÓï¾ä¡£ÕâÀàÎÊÌâÖ÷Òª¿¼²ìÎÒÃǶԸ¸Àà×ÓÀà³õʼ»¯Ë³ÐòµÄÁ˽âÇé¿ö¡£
      ÕâÀïÎÒÃÇÖ÷ÒªÌÖÂÛϾ²Ì¬³õʼ»¯¿éÕâÖÖÇé¿ö¡£
......

javaÉè¼ÆÄ£Ê½

1.factoryÒòΪ¹¤³§Ä£Ê½¾ÍÏ൱ÓÚ´´½¨ÊµÀý¶ÔÏóµÄnew£¬ÎÒÃǾ­³£Òª¸ù¾ÝÀàClassÉú³ÉʵÀý¶ÔÏó£¬
ÈçA a=new A() ¹¤³§Ä£Ê½Ò²ÊÇÓÃÀ´´´½¨ÊµÀý¶ÔÏóµÄ£¬ËùÒÔÒÔºónewʱ¾ÍÒª¶à¸öÐÄÑÛ£¬ÊÇ·ñ¿ÉÒÔ¿¼ÂÇʵÓù¤³§Ä£Ê½£¬
ËäÈ»ÕâÑù×ö£¬¿ÉÄܶà×öһЩ¹¤×÷£¬µ«»á¸øÄãϵͳ´øÀ´¸ü´óµÄ¿ÉÀ©Õ¹ÐԺ;¡Á¿ÉÙµÄÐÞ¸ÄÁ¿¡£
2.PrototypeģʽÔÊÐíÒ»¸ö¶ÔÏóÔÙ´´½¨Á ......

Java Web µÚÆßÌì ФÀÏ´®½²+¹ºÎﳵС½á

ͨ¹ý
½ñÌìСÀÏʦ¶Ô
Javaweb
µÄ´®½²£¬×Ô¼º×î´óÊÕ»ñÊǶÔÕû¸öjavaWebÓÐÁËÒ»¸öϵͳµÄÀí½â£¬¶ÔʵÏÖ¸÷¸ö²½ÖèµÄÔ­ÀíÓÐÁËÒ»¸öÈÚ»á¹áͨ£¬ÕûÌå֪ʶµãÒ²´®ÁªÁËÆðÀ´£¬×Ô¼ºµÄ˼ÏëÒ²´ÓÒÔǰµ¥´¿µÄÀûÓÃ
Java
´úÂë±àдÏÖʵÏîÄ¿³ÌÐòµ½Ó¦ÓÃÏÖÓй¤¾ß·½±ã¿ì½ÝµÄ·¢¿ª³öÏîÄ¿³ÌÐòµÄ¹ý¡£ÏÖÔڻعË֮ǰ6ÕµÄ֪ʶµãÄÚÈÝ£¬
Javaweb
¸Ð¾õÇåÎúÁ˺ܶà ......

Java Web µÚ8Ìì ¹ýÂËÆ÷

Ò»¡¢
ʲôÊǹýÂËÆ÷
´Ó¼¼ÊõÉϽ²¹ýÂËÆ÷ÊÇÒ»¸öÖмä×é¼þ£¬ÓÃÓÚÀ¹½ØÔ´Êý¾ÝºÍÄ¿µÄÊý¾Ý¼äµÄÏûÏ¢£¬²¢ÇÒ¹ýÂ˶þÕßÖ®¼ä´«µÝµÄÊý¾Ý¡£¶ÔÓÚ
WEB
Ó¦ÓóÌÐò£¬¹ýÂËÆ÷ÊÇפÁôÔÚ
WEB
·þÎñÆ÷ÉϵÄ
WEB
×é¼þ¡£¶ÔÓÚ¿Í»§¶ËºÍÄ¿±ê×ÊÔ´¶øÑÔ¹ýÂËÆ÷ÊÇ͸Ã÷µÄ£¬ËûÃÇÊDz»ÖªµÀ·¢ËÍÀ´µÄÊý¾ÝÊÇ·ñ¾­¹ý¹ýÂËÆ÷µÄ´¦Àí¡£
¶þ¡¢
¹ýÂËÆ÷µÄ×÷ÓÃ
¹ýÂËÆ÷Ï൱ÓÚÒ ......

Java Web µÚ10Ìì ELºÍJSTL 1

Ò»¡¢
ʲôÊÇ
EL
£¿ÎªÊ²Ã´ÒªÊ¹ÓÃ
EL
£¿
EL
£¬¼´
JSP
±í´ïʽÓïÑÔ£¨
expression_r_r Language
£©£¬ËüÔÊÐíÎÒÃÇʹÓøü¼ò½à¡¢¸üÒ×¶Á¶®µÄÓï·¨À´È¡´úÄÑÒÔά»¤µÄ
Java
½Å±¾ÒÔ¼°±¿×¾µÄ
jsp:userBean,jsp:getProperty
£¬ËûÈÃÔÚ
JSP
ÖÐÍêÈ«Ïû³ýÁË
Java
´úÂë¡£
EL
µÄʹÓÃÄܹ»ÈÃ
JSP
Ò³Ãæ¸üÓпɶÁÐÔ£¬Êä³öµÄǶÌ×µÄ ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØÍ¼ | ¸ÓICP±¸09004571ºÅ