ʹÓÃJava·¢ËÍPOST¡¢GETÇëÇó
ʹÓÃJava·¢ËÍGET¡¢POSTÇëÇó
——½ÚÑ¡×Ô¡¶·è¿ñJava½²Òå¡·
URLµÄopenConnection()·½·¨½«·µ»ØÒ»¸öURLConnection¶ÔÏ󣬸öÔÏó±íʾӦÓóÌÐòºÍ URL Ö®¼äµÄͨÐÅÁ´½Ó¡£³ÌÐò¿ÉÒÔͨ¹ýURLConnectionʵÀýÏò¸ÃURL·¢ËÍÇëÇ󡢶ÁÈ¡URLÒýÓõÄ×ÊÔ´¡£
ͨ³£´´½¨Ò»¸öºÍ URL µÄÁ¬½Ó£¬²¢·¢ËÍÇëÇ󡢶ÁÈ¡´Ë URL ÒýÓõÄ×ÊÔ´ÐèÒªÈçϼ¸¸ö²½Ö裺
£¨1£©Í¨¹ýµ÷ÓÃURL¶ÔÏóopenConnection()·½·¨À´´´½¨URLConnection¶ÔÏó¡£
£¨2£©ÉèÖÃURLConnectionµÄ²ÎÊýºÍÆÕͨÇëÇóÊôÐÔ¡£
£¨3£©Èç¹ûÖ»ÊÇ·¢ËÍGET·½Ê½ÇëÇó£¬Ê¹ÓÃconnect·½·¨½¨Á¢ºÍÔ¶³Ì×ÊÔ´Ö®¼äµÄʵ¼ÊÁ¬½Ó¼´¿É£»Èç¹ûÐèÒª·¢ËÍPOST·½Ê½µÄÇëÇó£¬ÐèÒª»ñÈ¡URLConnectionʵÀý¶ÔÓ¦µÄÊä³öÁ÷À´·¢ËÍÇëÇó²ÎÊý¡£
£¨4£©Ô¶³Ì×ÊÔ´±äΪ¿ÉÓ㬳ÌÐò¿ÉÒÔ·ÃÎÊÔ¶³Ì×ÊÔ´µÄÍ·×ֶΡ¢»òͨ¹ýÊäÈëÁ÷¶ÁÈ¡Ô¶³Ì×ÊÔ´µÄÊý¾Ý¡£
ÔÚ½¨Á¢ºÍÔ¶³Ì×ÊÔ´µÄʵ¼ÊÁ¬½Ó֮ǰ£¬³ÌÐò¿ÉÒÔͨ¹ýÈçÏ·½·¨À´ÉèÖÃÇëÇóÍ·×ֶΣº
setAllowUserInteraction£ºÉèÖøÃURLConnectionµÄallowUserInteractionÇëÇóÍ·×ֶεÄÖµ¡£
setDoInput£ºÉèÖøÃURLConnectionµÄdoInputÇëÇóÍ·×ֶεÄÖµ¡£
setDoOutput£ºÉèÖøÃURLConnectionµÄdoOutputÇëÇóÍ·×ֶεÄÖµ¡£
setIfModifiedSince£ºÉèÖøÃURLConnectionµÄifModifiedSinceÇëÇóÍ·×ֶεÄÖµ¡£
setUseCaches£ºÉèÖøÃURLConnectionµÄuseCachesÇëÇóÍ·×ֶεÄÖµ¡£
³ý´ËÖ®Í⣬»¹¿ÉÒÔʹÓÃÈçÏ·½·¨À´ÉèÖᢻòÔö¼ÓͨÓÃÍ·×ֶΣº
setRequestProperty(String key, String value)£ºÉèÖøÃURLConnectionµÄkeyÇëÇóÍ·×ֶεÄֵΪvalue¡£ÈçÏ´úÂëËùʾ£º
conn.setRequestProperty("accept" , "*/*")
addRequestProperty(String key, String value)£ºÎª¸ÃURLConnectionµÄkeyÇëÇóÍ·×ֶεÄÔö¼ÓvalueÖµ£¬¸Ã·½·¨²¢²»»á¸²¸ÇÔÇëÇóÍ·×ֶεÄÖµ£¬¶øÊǽ«ÐÂÖµ×·¼Óµ½ÔÇëÇóÍ·×Ö¶ÎÖС£
µ±Ô¶³Ì×ÊÔ´¿ÉÓÃÖ®ºó£¬³ÌÐò¿ÉÒÔʹÓÃÒÔÏ·½·¨ÓÃÓÚ·ÃÎÊÍ·×ֶκÍÄÚÈÝ£º
Object getContent()£º»ñÈ¡¸ÃURLConnectionµÄÄÚÈÝ¡£
String getHeaderField(String name)£º»ñÈ¡Ö¸¶¨ÏìӦͷ×ֶεÄÖµ¡£
getInputStream()£º·µ»Ø¸ÃURLConnection¶ÔÓ¦µÄÊäÈëÁ÷£¬ÓÃÓÚ»ñÈ¡URLConnectionÏìÓ¦µÄÄÚÈÝ¡£
getOutputStream()£º·µ»Ø¸ÃURLConnection¶ÔÓ¦µÄÊä³öÁ÷£¬ÓÃÓÚÏòURLConnection·¢ËÍÇëÇó²ÎÊý¡£
×¢Ò⣺Èç¹û¼ÈҪʹÓÃÊäÈëÁ÷¶ÁÈ¡URLConnectionÏìÓ¦µÄÄÚÈÝ£¬Ò²ÒªÊ¹ÓÃÊä³öÁ÷·¢ËÍÇëÇó²ÎÊý£¬Ò»¶¨ÒªÏÈʹÓÃÊä³öÁ÷£¬ÔÙʹÓÃÊäÈëÁ÷¡£
getHeaderField·½·¨ÓÃÓÚ¸ù¾ÝÏìӦͷ×Ö¶ÎÀ´·µ»Ø¶ÔÓ¦µÄÖµ¡£¶øijЩͷ×Ö¶ÎÓÉÓÚ¾³£ÐèÒª·ÃÎÊ
Ïà¹ØÎĵµ£º
¹ØÓÚJavaÕ»Óë¶ÑµÄ˼¿¼
1. Õ»(stack)Óë¶Ñ(heap)¶¼ÊÇJavaÓÃÀ´ÔÚRamÖдæ·ÅÊý¾ÝµÄµØ·½¡£ÓëC++²»Í¬£¬Java×Ô¶¯¹ÜÀíÕ»ºÍ¶Ñ£¬³ÌÐòÔ±²»ÄÜÖ±½ÓµØÉèÖÃÕ»»ò¶Ñ¡£
¡¡¡¡2. Õ»µÄÓÅÊÆÊÇ£¬´æÈ¡ËٶȱȶÑÒª¿ì£¬½ö´ÎÓÚÖ±½ÓλÓÚCPUÖеļĴæÆ÷¡£µ«È±µãÊÇ£¬´æÔÚÕ»ÖеÄÊý¾Ý´óСÓëÉú´æÆÚ±ØÐëÊÇÈ·¶¨µÄ£¬È±·¦Áé»îÐÔ¡£ÁíÍ⣬ջÊý¾Ý¿ÉÒÔ¹²Ïí£¬Ïê¼ûµÚ3µ ......
1, ±£Ö¤Ḭ̈߳²È«µÄÈýÖÖ·½·¨: a, ²»Òª¿çÏ̷߳ÃÎʹ²Ïí±äÁ¿b, ʹ¹²Ïí±äÁ¿ÊÇfinalÀàÐ͵Äc, ½«¹²Ïí±äÁ¿µÄ²Ù×÷¼ÓÉÏͬ²½
2, Ò»¿ªÊ¼¾Í½«ÀàÉè¼Æ³ÉḬ̈߳²È«µÄ, ±ÈÔÚºóÆÚÖØÐÂÐÞ¸´Ëü,¸üÈÝÒ×.
3, ±àд¶àÏ̳߳ÌÐò, Ê×Ïȱ£Ö¤ËüÊÇÕýÈ·µÄ, Æä´ÎÔÙ¿¼ÂÇÐÔÄÜ.
4, ÎÞ ......
Ëæ×Å»¥ÁªÍøµÄÈÕÒæ׳´ó,ÍøÕ¾µÄpvºÍuv³ÉÏßÐÔ»òÕßÖ¸Êý±¶µÄÔö¼Ó.µ¥·þÎñÆ÷µ¥Êý¾Ý¿âÔçÒѾ²»ÄÜÂú×ãʵ¼ÊÐèÇó.±ÈÈçÏñÊ¢´ó,ÌÔ±¦ÕâÑùµÄ´óÐÍÍøÂ繫˾,¸üÊÇÈç´Ë.
¼¯Èº,Ò²¾ÍÊÇÈÃÒ»×é¼ÆËã»ú·þÎñÆ÷Ðͬ¹¤×÷,´ï½â¾ö´ó²¢·¢,´óÊý¾ÝÁ¿Æ¿¾±ÎÊÌâ.µ«ÊÇÔÚȺ¼¯ÖÐ,sessionÍùÍùÊÇÒ»¸ö±È½ÈÍ·ÌÛµÄÎ ......
ÔÚ±àÒëandroid code ³öÏÖ°æ±¾²»¶ÔµÄÎÊÌ⣺
ÃèÊöÈçÏ£º
You are attempting to build with the incorrect version
of java.
Your version is: java version "1.6.0_17".
The correct version is: 1.5.
Please follow the machine setup instructions at
http://source.android.com/download
ÍøÉÏÓÐÈËÌṩ½â¾ö·½·¨ÈçÏ ......