ÎÒµÄJSPѧϰ±Ê¼Ç JSPÒ³ÃæÖеÄÈýÀà»ù±¾ÔªËØ
JSPÒ³ÃæµÄÈýÀà»ù±¾ÔªËØ
1.ÉùÃ÷
ÐÎÈç
<%!
int a;
int add(int a,int b)
{
return a+b;
}
%>
ÉùÃ÷ÔªËØ<%!.....%>¿ÉÔÚjspÒ³ÃæÖжà´Î³öÏÖ£¬µ«²»Ç¶Ì×£¬ÀïÃæÀ´ÉùÃ÷Ò³Ãæ±äÁ¿ºÍÒ³Ã溯Êý£¬À´ÎªÕû¸öÒ³ÃæʹÓã¬ÈçͬjavaÀàÀïÃæµÄÀà±äÁ¿ºÍÀà·½·¨
2.´úÂë
ÐÎÈç
<%
int a;
%>
ÀïÃæÊÇjspµÄ´úÂ룬Èçͬº¯ÊýÄÚ²¿£¬Ëù¶¨ÒåµÄ±äÁ¿£¬ËäÈ»¿ÉÒÔдÈë¶à¸ö<%..%>£¬µ«ÊDz»ÄÜǶÌ×£¬²¢ÇÒÒ»µ©´úÂëÀﶨÒå±äÁ¿£¬ÄÇô¸Ã´úÂëÒÔϵĴúÂ벿·Ö¶¼ÄÜ·ÃÎÊ£¨ÓÐЧ£©£¬²»¹ÜÊDz»ÊÇÔÚͬһ¸ö<%.........%>ÄÚ²¿
3.±í´ïʽ
ÐÎÈç<%=a%>
ÆäÖÐaÊDZäÁ¿»òÕß³£Á¿£¬´ËÓï¾ä½«Ïò¿Í»§¶ËÍøÒ³ÖÐÊä³öaµÄÖµ
Ïà¹ØÎĵµ£º
Ê×ÏÈ,˵һÏÂ301Öض¨ÏòµÄÒâÒåÓë×÷ÓÃ(ÍøÉÏÕÒµÄÏà¹Ø×ÊÁÏ)
ÆäʵÕâ¾ÍÉæ¼°µ½ÁËSEOµÄ֪ʶ¡£
ʲôÊÇ301תÏò£¿
´ÓËÑË÷ÒýÇæÓÅ»¯½Ç¶È³ö·¢£¬301Öض¨ÏòÊÇÍøÖ·Öض¨Ïò×îΪ¿ÉÐеÄÒ»ÖÖ°ì·¨¡£µ±ÍøÕ¾µÄÓòÃû·¢Éú±ä¸üºó£¬ËÑË÷ÒýÇæÖ»¶ÔÐÂÍøÖ·½øÐÐË÷Òý£¬Í¬Ê±ÓÖ»á°Ñ¾ÉµØÖ·ÏÂÔÓеÄÍⲿÁ´½ÓÈçÊýתÒƵ½ÐµØÖ·Ï£¬´Ó¶ø²»»áÈÃÍøÕ¾µÄÅÅÃûÒòΪÍøÖ ......
request request±íʾHttpServletRequest¶ÔÏó¡£Ëü°üº¬ÁËÓйØä¯ÀÀÆ÷ÇëÇóµÄÐÅÏ¢£¬²¢ÇÒÌṩÁ˼¸¸öÓÃÓÚ»ñÈ¡cookie, header, ºÍsessionÊý¾ÝµÄÓÐÓõķ½·¨¡£
response response±íʾHttpServletResponse¶ÔÏ󣬲¢ÌṩÁ˼¸¸öÓÃÓÚÉèÖÃËÍ»Ø ä¯ÀÀÆ÷µÄÏìÓ¦µÄ·½·¨£¨Èçcookies,Í·ÐÅÏ¢µÈ£©
out out ¶ÔÏóÊÇjavax.jsp.JspWriterµÄÒ»¸öʵÀý£¬ ......
//ת×Ôhttp://blog.csdn.net/zqhf8/archive/2007/07/09/1683938.aspx
1¡£ÔÀí¼ò½é
dtreeÊÇÒ»¸öÃâ·ÑµÄjavascript½Å±¾£¬Ö»Ð趨ÒåÓÐÏ޵ļ¸¸ö²ÎÊý£¬¾Í¿ÉÒÔ×ö³öƯÁÁµÄÊ÷ÐͲ˵¥¡£ÏÂÔØĿ¼£ºhttp://www.destroydrop.com/javascripts/tree/
ÒÔÏÂÊÇdtreeµÄÓ÷¨Ê¾Àý£º
1£©³õʼ»¯²Ëµ¥
<script t ......
JSP/Servletת·¢ÓëÖض¨ÏòµÄÇø±ð
¾¡¹ÜHttpServletResponse.sendRedirect ·½·¨ºÍRequestDispatcher.forward ·½·¨¶¼¿ÉÒÔÈÃä¯ÀÀÆ÷»ñµÃÁíÍâÒ»¸öURLËùÖ¸ÏòµÄ×ÊÔ´£¬µ«Á½ÕßµÄÄÚ²¿ÔËÐлúÖÆÓÐןܴóµÄÇø±ð¡£
¡¡¡¡ÏÂÃæÊÇHttpServletResponse.sendRedirect ·½·¨ÊµÏÖµÄÇëÇóÖض¨ÏòÓëRequestDispatcher.forward ·½·¨ÊµÏÖµÄÇëÇó ......
JSPÒ³ÃæÖÐÒ»°ãÓÐÁ½Àà×¢ÊÍ
1.html×¢ÊÍ
ÐÎÈç<!--...................-->
Ëü»áͬhtml±ê¼Çһͬ·¢µ½¿Í»§¶Ë
2.jsp×¢ÊÍ£¨3ÖÖ£©
ÐÎÈç<%--.............................--%>
Ëü²»»á±»·¢Ë͵½¿Í»§¶Ë£¬Ö»ÓÃÀ´×¢ÊÍ·þÎñÆ÷¶ËµÄjspÎļþ£¬Á¬jspÉú³ÉµÄservletҲûÓÐ×¢ÊͽøÈ¥£¬ÕâÒ²ÊǴ󲿷ÖÈËʹÓõÄ×¢ÊÍ
ÐÎÈç<%//...... ......