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out  Ïò¿Í»§¶ËÊä³öÊý¾Ý print() println() flush() clear() isAutoFlush() getBufferSize()   close() …………
request Ïò¿Í»§¶ËÇëÇóÊý¾Ý
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response ·â×°ÁËjsp²úÉúµÄÏìÓ¦£¬È»ºó±»·¢Ë͵½¿Í»§¶ËÒÔÏìÓ¦¿Í»§µÄÇëÇó addCookie() sendRedirect() setContentType()
flushBuffer() getBufferSize() getOutputStream()
sendError() containsHeader()……………
application Ó¦ÓóÌÐò¼¶¶ÔÏ󣨼´Ó¦ÓóÌÐòÉÏÏÂÎÄ£©,¶à¸öÓû§Ö®¼ä¹²ÏíÐÅÏ¢ 
config ±íʾServletµÄÅäÖ㬵±Ò»¸öServlet³õʼ»¯Ê±£¬ÈÝÆ÷°ÑijЩÐÅϢͨ¹ý´Ë¶ÔÏ󴫵ݸøÕâ¸öServlet
JSPµÄÅäÖÃÐÅÏ¢£¬×÷ÓÃÓòÎªÒ³Ãæ getServletContext() getServletName() getInitParameter()   getInitParameterNames()……………
page ¶ÔÓ¦this¹Ø¼ü×Ö¡£JSPÍøÒ³±¾Éí£¬JspʵÏÖÀàµÄʵÀý£¬ËüÊÇjsp±¾Éí£¬Í¨¹ýÕâ¸ö¿ÉÒÔ¶ÔËü½øÐзÃÎÊ flush()………
pagecontext ΪJSPÒ³Ãæ°ü×°Ò³ÃæµÄÉÏÏÂÎÄ¡£¹ÜÀí¶ÔÊôÓÚJSPÖÐÌØÊâ¿É¼û²¿·ÖÖмº¾­ÃüÃû¶ÔÏóµÄ¸ÃÎÊ  ÍøÒ³µÄÊôÐÔÊÇÔÚÕâÀï¹ÜÀí forward() getAttribute() getException() getRequest() getResponse()   getServletConfig()
getSession() getServletContext() setAttribute()
removeAttribute() findAttribute() …………… 
session Óû§¼¶¶ÔÏó£¬ÓÃÀ´±£´æÃ¿¸öÓû§µÄÐÅÏ¢£¬ÒÔ±ã¸ú×Ùÿ¸öÓû§µÄ²Ù×÷״̬ͨ¹ý <%@ page session ="false" %>¸ÃÒ³Ãæ½ûÖ¹»á»° getAttribute() getId()   getAttributeNames() getCreateTime() getMaxInactiveInterval()
invalidate() isNew()
exception ·´Ó³ÔËÐеÄÒì³£Ö»ÓÐÔÚpageÖ¸ÁîÖÐÖ¸¶¨isErrorPage = "true"ÊôÐÔ£¬²Å¿ÉÒÔʹÓÃÕâ¸ö¶ÔÏó¡£ getMessage()…&h


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