ÈçºÎÏòÒ»¸öjsp´«µÝÁ½¸öÒÔÉϵIJÎÊý
ÓÐÁ½ÖÖ´«²Î·½Ê½
Ò»¡¢get·½Ê½£º
ÕâÖÖ·½Ê½½«²ÎÊýдÔÚurlÖУ¬¾ÙÀýÀ´Ëµ£¬Èç¹ûÄ¿±ê´«²ÎÒ³ÃæÊÇtarget.jsp,ÄÇôÔÚurlÀï¿ÉÒÔÕâôд£º
http://..../target.jsp? <Param1> = <value1> & <Param2> = <value2> &...
¿ÉÒÔ´«µÝ¶à¸ö²ÎÊý¡£
ÔÚtarget.jspÖУ¬ÓÃrequest.getParameter( " <ParamName> ");»ñÈ¡£»
¶þ¡¢post·½Ê½
ÕâÖÖ·½Ê½ÊÇÓà <form> ¿òÌå´«µÝ²ÎÊý¡£¾ÙÀýÀ´Ëµ£¬ÈçÐèÒª½«²ÎÊýÓÉsource.jsp´«µÝµ½target.jsp¡£ÄÇôÔÚsource.jspÖÐÐèÒªÕâôд£º
.......
<form name= "form1 " action= "target.jsp " method= "post ">
<input name= " <Param1> " value= " <value1> " type= "text ">
<input name= " <Param2> " value= " <value2> " type= "hidden ">
<!--ÓÃinput±êÇ©µÄhiddenÀàÐÍ£¬ÄÇôÕâ¸öinput±êÇ©ÔÚÒ³ÃæÏÔʾʱ²»»á±»ÏÔʾ£¬µ«¸Ã²ÎÊý»Ø´«µÝµ½formµÄactionÄ¿±êÒ³ÃæÈ¥£¬Õâ¸ö·½·¨¿ÉÄܶÔÄã´«²ÎÓÐÓÃ-->
.....
</form>
ÔÚtarget.jsp¶ËͬÑùÓÃrequest.getParameter( " <ParamName> ");»ñÈ¡£»
Ïà¹ØÎĵµ£º
´ó¼Ò×ÜÊDz»Ï²»¶¿´µ½<%ºÍ%>ÔÚjspÒ³ÃæÉÏ£¬ÆäʵÎÒÃÇ¿ÉÒÔʹÓñȽÏÓÅÑŵÄxml·½Ê½À´±í´ï
1£¬Òþº¬µÄ×¢ÊÍ
JSPÓï·¨£º<%-- ÄÚÈÝ --%>
XMLÓï·¨£ºÎÞ
2£¬±äÁ¿»òº¯ÊýµÄÉùÃ÷
JSPÓï·¨:<%! declaration;[declaration;]+... %>
ÀýÈ磺
<%!
int i=0;int a,b,c;
Color red=new Color( ......
·½·¨Ò»£ºÔÚservletµÄinit()·½·¨Öлº´æÊý¾Ý
¡¡¡¡µ±Ó¦Ó÷þÎñÆ÷³õʼ»¯servletʵÀýÖ®ºó£¬Îª¿Í»§¶ËÇëÇóÌṩ·þÎñ֮ǰ£¬Ëü»áµ÷ÓÃÕâ¸öservletµÄinit()·½·¨¡£ÔÚÒ»¸öservlet
µÄÉúÃüÖÜÆÚÖУ¬init()·½·¨Ö»»á±»µ÷ÓÃÒ»´Î¡£Í¨¹ýÔÚinit()·½·¨Öлº´æÒ»Ð©¾²Ì¬µÄÊý¾Ý»òÍê³ÉһЩֻÐèÒªÖ´ÐÐÒ»´ÎµÄ¡¢ºÄʱµÄ²Ù×÷£¬¾Í¿É´ó´óµØÌá¸ßϵ
ͳÐÔÄÜ¡£
¡¡ ......
ÓÃORACLE9i¡¢oracle8¡¢Óкܳ¤µÄÒ»¶Îʱ¼ä£¬ÎÒ°ÑÓÃÓÚJSPÖÐÐèҪעÒâµÄÎÊÌâÔÚÕâÀïд³öÀ´£¬½ö¹©´ó¼Ò²Î¿¼ÁË¡£
¡¡¡¡Ò»¡¢ÈçºÎÈ¥´¦ÀíClob¡¢BLOBµÄ´óÀàÐÍ
¡¡¡¡CLOB¿ÉÓÃÓÚ´æ·Å´óÎı¾Êý¾Ý,×î¶à¿É´æ´¢4GBÊý¾Ý,ÔÚÓ¦Óÿª·¢ÖбȽϳ£¼û.javaÌṩµÄsql.ClobÀàÓëÖ®¶ÔÓ¦.ËüÌṩÁ½¸ö·½·¨À´¶ÁÈ¡ClobµÄÊý¾Ý:
¡¡¡¡getCharacterStream() ·½·¨·µ»Ø° ......
Á½Äêǰ£¬ÔøÓÐһλǰ±²¶ÔÎÒ˵¹ý£º¿ª·¢Ò»¸öÊôÓÚÄã×Ô¼ºµÄÍøÕ¾£¬È»ºóÿÌ컨һµã¿ÕÏеÄʱ¼äÈ¥¾ÓªÒ»Ï£¬ÖÕÓÐÒ»Ì죬Äã»á·¢¾õËüÊǷdz£ÓÐÓõġ£¸Õ¿ªÊ¼µÄʱºò£¬ÎÒûÓаÑÕâЩ»°·ÅÔÚÐÄÉÏ£¬ÂýÂýµØ£¬ÎҲŷ¢¾õÕâλǰ±²ËµµÄ»°ÊǺÜÓеÀÀíµÄ¡£¼ÙÉèÁ½Äêǰ¿ªÊ¼¾ÓªÒ»¸öÍøÕ¾£¬Í¨¹ýÕâÁ½ÄêµÄÍÆ¹ãºÍÔËÓª£¬Ëµ²»¶¨µ½Ï ......