JSP¾Å´óÄÚÖöÔÏó¼°Ëĸö×÷ÓÃÓò
¾Å´ó¶ÔÏó£º
ÄÚÖöÔÏó£¨ÓÖ½ÐÒþº¬¶ÔÏó£¬ÓÐ9¸öÄÚÖöÔÏó£©:²»ÐèÒªÔ¤ÏÈÉùÃ÷¾Í¿ÉÒÔÔڽű¾´úÂëºÍ±í´ïʽÖÐËæÒâʹÓÃ
1-out:
javax.servlet.jsp.JspWriterÀàÐÍ£¬´ú±íÊä³öÁ÷µÄ¶ÔÏó¡£×÷ÓÃÓòΪpage£¨Ò³ÃæÖ´ÐÐÆÚ£©
request£ºjavax.servlet.ServletRequestµÄ×ÓÀàÐÍ£¬´Ë¶ÔÏó·â×°ÁËÓÉWEBä¯ÀÀÆ÷»òÆäËü¿Í»§¶ËÉú³ÉµØHTTP
ÇëÇóµÄϸ½Ú£¨²ÎÊý£¬ÊôÐÔ£¬Í·±êºÍÊý¾Ý£©¡£×÷ÓÃÓòΪrequest(Óû§ÇëÇóÆÚ£©¡£
·½·¨Óɿɲ鿴API
response£ºjavax.servlet.ServletResponseµÄ×ÓÀàÐÍ£¬´Ë¶ÔÏó·â×°ÁË·µ»Øµ½HTTP¿Í»§¶ËµÄÊä³ö£¬ÏòÒ³Ãæ
×÷ÕßÌṩÉèÖÃÏìӦͷ±êºÍ״̬ÂëµÄ·½Ê½¡£¾³£ÓÃÀ´ÉèÖÃHTTP±êÌ⣬Ìí¼Ócookie£¬ÉèÖÃÏìÓ¦ÄÚÈݵÄÀàÐͺÍ×´
̬£¬·¢ËÍHTTPÖض¨ÏòºÍ±àÂëURL¡£×÷ÓÃÓòΪpage£¨Ò³ÃæÖ´ÐÐÆÚ£©¡£
pageContext£ºjavax.servlet.jsp.PageContext£¨³éÏóÀࣩÀàÐÍ£¬×÷ÓÃÓòΪpage£¨Ò³ÃæÖ´ÐÐÆÚ£©¡£´Ë¶ÔÏó
ÌṩËùÓÐËĸö×÷ÓÃÓò²ã´ÎµÄÊôÐÔ²éѯºÍÐÞ¸ÄÄÜÁ¦£¬ËüÒ²ÌṩÁËת·¢ÇëÇóµ½ÆäËü×ÊÔ´ºÍ°üº¬ÆäËû×ÊÔ´µÄ·½·¨
£º
¸Ã¶ÔÏóµÄ·½·¨¶¼ÊdzéÏó·½·¨
session£ºjavax.servlet.http.HttpSessionÀàÐÍ£¬Ö÷ÒªÓÃÓÚ¸ú×Ù¶Ô»°¡£×÷ÓÃÓòsession(»á»°ÆÚ—£©¡£
HttpSessionÊÇÒ»¸öÀàËƹþÏ£±íµÄÓëµ¥Ò»WEBä¯ÀÀÆ÷»á»°Ïà¹ØµÄ¶ÔÏó£¬Ëü´æÔÚÓÚHTTPÇëÇóÖ®¼ä£¬¿ÉÒÔ´æ´¢ÈÎ
ºÎÀàÐ͵ÄÃüÃû¶ÔÏó¡£
Èç¹û²»ÐèÒªÔÚÇëÇóÖ®¼ä¸ú×ٻỰ¶ÔÏ󣬿ÉÒÔͨ¹ýÔÚpageÖ¸ÁîÖÐÖ¸¶¨session="false"
ÐèÒª¼ÇסµÄÊÇpageContext¶ÔÏóÒ²¿ÉÒÔÓësession.getAttribute(),session.setAttribute()Ò»ÑùµÄ·½Ê½È¡
µÃ²¢ÉèÖûỰÊôÐÔ¡£
application£ºjavax.servlet.ServletContextÀàÐÍ£¬servletµÄ»·¾³Í¨¹ýµ÷ÓÃgetServletConfig
().getContext()·½·¨»ñµÃ¡£×÷ÓÃÓòÊÇapplication(Õû¸ö³ÌÐòÔËÐÐÆÚ£©¡£ËüÌṩÁ˹ØÓÚ·þÎñÆ÷°æ±¾£¬Ó¦ÓÃ
¼¶³õʼ»¯²ÎÊýºÍÓ¦ÓÃÄÚ×ÊÔ´¾ø¶Ô·¾¶£¬×¢²áÐÅÏ¢µÄ·½Ê½
config£ºjavax.servlet.ServletConfig,×÷ÓÃÓòΪpage£¨Ò³ÃæÖ´ÐÐÆÚ£©
exception:java.lang.Throwable,ͨ¹ýJSP´íÎóÒ³ÃæÖÐÒ»¸öcatch¿éÒѾÒæ³öµ«Ã»ÓⶻñµÄ
java.lang.ThrowableµÄÈÎÒâʵÀý£¬´«ÏòÁËerrorPageµÄURI¡£×÷ÓÃÓòΪpage£¨Ò³ÃæÖ´ÐÐÆÚ£©¡£×¢Òâ
exceptionÖ»ÓÐÔÚpageÖ¸ÁîÖоßÓÐÊôÐÔisErrorPage="true"ʱ²ÅÓÐЧ¡£
page:java.lang.ObjectÀàÐÍ£¬Ö¸ÏòÒ³Ãæ×ÔÉíµÄ·½Ê½¡£×÷ÓÃÓòΪpage£¨Ò³ÃæÖ´ÐÐÆÚ
JSPÖоŴóÄÚÖöÔÏóΪ£º
request ÇëÇó¶ÔÏó¡¡ &n
Ïà¹ØÎĵµ£º
ѧϰjspʱ£¬ÂÒÂëÒ²ÊÇÒ»¸öºÜÍ·Í´µÄÊ¡£
1.ÔÚjspÎļþ¿ªÍ·¼ÓÉÏ<%@ page contentType="text/html; charset=GBK"%>
2.½â¾öpost·½Ê½Ìá½»ÄÚÈݵÄÂÒÂ룺request.setCharcterEncoding("GBK");
3.½â¾öurl(get£¬³¬Á´½Ó)·½Ê½ÂÒÂëÎÊÌâÊÇÅäÖÃservlet.xml.ÔÚ<Connector>±êÇ©ÖÐÌí¼ÓÒ»¾äURIEncoding="GBK" »òÕß string ......
Ò»£º¹¤³§Ä£Ê½³öÏÖµÄÔÒò
Ò»°ãÉè¼Æģʽ£º
view plaincopy to clipboardprint?
interface Fruit{
public void eat();
}
class Apple implements Fruit{
&n ......
response.setContentType( "application/pdf" ); // MIME type for pdf doc
response.setHeader("Content-Disposition","attachment;filename=output.pdf;");
Sets the Content-Type header. Content-Type identifies the MIME type of the response document and the character set encoding.
To se ......
JSPÔʼ´úÂëÖаüº¬ÁËJSPÔªËغÍTemplate(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¡£
¶ ......
ÏÂÔغóµ¼ÈëÏîÄ¿µ½ MyEclipse , È»ºóÐÞ¸ÄÊý¾Ý¿âÁ¬½Ó²ÎÊý¼´¿É²âÊÔ. ÎÒÕâÓõÄÊÇ MySQL Êý¾Ý¿â. Óà JSP ÊÇÒòΪ Hibernate ¿ÉÒÔÅäºÏ¸÷ÖÖ¿ò¼Ü, Òò´ËÔÚ´úÂëÀïÎÒÒѾ¾¡Á¿µÄ°ÑÒ³ÃæºÍºǫ́µÄÖ±½Ó±äÁ¿ñîºÏ·Ö¸ô¿ªÁË.
hibernate_page.zip 433KB
²¿·Ö´úÂëÏÔʾ:
Ïà¹Ø SQL:
CREATE TABLE `user` (
`id` int(11) NOT NULL,
`u ......