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褰撶劧錛岄櫎浜?jiǎn)鍘嬀~╋紝榪樿鏈夎В鍘嬬緝錛屼篃灝辨槸灝嗗浘鍍忚鍙栦負(fù)JS鏂囦歡鐨勮繃紼嬨傝繖涓嚱鏁版槸鐢↗S鍐欑殑錛屽彲浠ヤ粠涓嬮潰鐨勪綅緗笅杞借繖涓枃浠躲?br />http://www.cleanthem.com/code/20120620/pngdata.txt
鏈鍚庣粰鍑哄湪綰挎祴璇曞湴鍧錛屽湪榪欎釜緗戦〉涓婏紝鎮(zhèn)ㄥ彲浠ュ湪鍒楄〃涓夋嫨涓涓狿NG鍥懼儚鏂囦歡錛岀偣鍑?load file 鎸夐挳鍙互鍦ㄧ綉欏典笂鐪嬪埌榪欎釜鍥懼儚錛屽湪鍥懼儚鐨勪笅闈㈡槸鐢辮繖涓浘鍍忔墍璇誨嚭鏉ョ殑浠g爜鏂囦歡銆?/p>
http://www.nihilogic.dk/labs/canvascompress/
娉細(xì)杞澆璇鋒敞鏄庡嚭澶勶紝瑙夊緱鏈夌敤灝辨帹鑽愪竴涓嬪惂~
鍦ㄦ垜鐪嬫潵榪欎袱鑰呴兘涓嶆槸閲嶇偣錛岀壒鍐欐鏂囦簣浠ヨ璁恒?/p>
鎴戜滑鍏堟潵鐪嬩簺鍩烘湰姒傚康錛?/p>
GET銆丳OST 涓撲笟鍚嶇О鏄?HTTP Request Methods銆備絾 HTTP Request Methods 涓嶅彧鏄?GET 鍜?POST錛屽畬鏁村垪琛ㄥ涓嬶細(xì)
REST 浣跨敤鍓嶅洓涓細(xì)GET銆丳OST銆丳UT銆丏ELETE銆傚洜浜涜繖鍥涗釜涔熸槸緇忓父琚竴鍧楁彁鍙?qiáng)鐨勫Q屽皢榪欏洓涓綔涓哄叧閿瓧榪涜鎼滅儲(chǔ)錛屼綘浼?xì)寰楀埌鏇存繁鍏ョ殑缁撴灉銆?/p>
鍦ㄤ竴鑸殑 Web 寮鍙戜腑錛孏ET 鍜?POST 鐢ㄥ緱鏈澶氾紝緗戜笂瀵硅繖涓ょ殑璁ㄨ涔熸槸鏈澶氾紝寰寰鍙堝緢鑲ゆ祬鐨勩?/p>
鏇村淇℃伅璇鋒煡鐪嬶細(xì)
http://www.w3.org/Protocols/rfc2616/rfc2616-sec9.html
http://en.wikipedia.org/wiki/Hypertext_Transfer_Protocol
http://zh.wikipedia.org/wiki/REST
RFC 2616 涓畾涔夊涓嬶紙鍚庨潰鏈夌炕璇戯級(jí)錛?/p>
Implementors should be aware that the software represents the user in their interactions over the Internet, and should be careful to allow the user to be aware of any actions they might take which may have an unexpected significance to themselves or others.
In particular, the convention has been established that the GET and HEAD methods SHOULD NOT have the significance of taking an action other than retrieval. These methods ought to be considered "safe". This allows user agents to represent other methods, such as POST, PUT and DELETE, in a special way, so that the user is made aware of the fact that a possibly unsafe action is being requested.
Naturally, it is not possible to ensure that the server does not generate side-effects as a result of performing a GET request; in fact, some dynamic resources consider that a feature. The important distinction here is that the user did not request the side-effects, so therefore cannot be held accountable for them.
緗戝潃錛?a target="_blank" style="outline-style: none; outline-width: initial; outline-color: initial; text-decoration: none; color: #3d81ee; border-bottom-width: 1px; border-bottom-style: dashed; ">http://www.w3.org/Protocols/rfc2616/rfc2616-sec9.html#sec9.1.1
緇村熀鐧劇涓殑璇存槑錛堝 RFC 2616緲昏瘧錛夛細(xì)
寮鍙戣呭簲褰撴剰璇嗗埌浠栦滑鐨?a target="_blank" style="outline-style: none; outline-width: initial; outline-color: initial; text-decoration: none; color: #3d81ee; border-bottom-width: 1px; border-bottom-style: dashed; ">杞歡浠h〃浜?jiǎn)鐢ㄦ埛鍦?a target="_blank" style="outline-style: none; outline-width: initial; outline-color: initial; text-decoration: none; color: #3d81ee; border-bottom-width: 1px; border-bottom-style: dashed; ">鍥犵壒緗?/a>涓婅繘琛屼氦浜掞紝騫朵笖搴斿綋鍛婄煡鐢ㄦ埛錛屼粬浠鍦ㄨ繘琛岀殑鎿嶄綔鍙兘瀵逛粬浠嚜韜垨鑰呭叾浠栦漢鏈夋湭鏇鵑鏂欑殑閲嶈褰卞搷銆?/p>
鐗瑰埆鍦幫紝瀵逛簬GET鍜孒EAD鏂規(guī)硶鑰岃█錛岄櫎浜?jiǎn)杩涜鑾峰彇璧勬簮淇℃伅澶栧Q岃繖浜涜姹備笉搴斿綋鍐嶆湁浠諱綍鍏朵粬鎰忎箟銆備篃灝辨槸璇達(dá)紝榪欎簺鏂規(guī)硶搴斿綋琚涓烘槸“瀹夊叏鐨?#8221;銆傚鎴風(fēng)搴斿綋浣跨敤鍏朵粬“闈炲畨鍏?#8221;鏂規(guī)硶錛屼緥濡侾OST錛孭UT鍙?qiáng)DELETE鏉ヤ互鐗規(guī)畩鐨勬柟寮忥紙閫氬父鏄寜閽屼笉鏄?a target="_blank" style="outline-style: none; outline-width: initial; outline-color: initial; text-decoration: none; color: #3d81ee; border-bottom-width: 1px; border-bottom-style: dashed; ">瓚呴摼鎺?/a>錛変嬌寰楀鎴瘋兘澶熸剰璇嗗埌鍙兘瑕佽礋鐨勮矗浠伙紙渚嬪涓涓寜閽甫鏉ョ殑璧勯噾浜ゆ槗錛夋垨鑰呰鍛婄煡姝e湪璇鋒眰鐨勬搷浣滃彲鑳芥槸涓嶅畨鍏ㄧ殑錛堜緥濡傛煇涓枃浠跺皢琚笂浼犳垨鍒犻櫎錛夈?/p>
浣嗘槸錛屼笉鑳芥兂褰撶劧鍦拌涓烘湇鍔″櫒鍦ㄥ鐞嗘煇涓狦ET璇鋒眰鏃朵笉浼?xì)漶旂敓鋼Q浣曞壇浣滅敤銆備簨瀹炰笂錛屽緢澶氬姩鎬佽祫婧愪細(xì)鎶婅繖浣滀負(fù)鍏剁壒鎬с傝繖閲岄噸瑕佺殑鍖哄埆鍦ㄤ簬鐢ㄦ埛騫舵病鏈夎姹傝繖涓鍓綔鐢紝鍥犳涓嶅簲鐢辯敤鎴蜂負(fù)榪欎簺鍓綔鐢ㄦ壙鎷呰矗浠匯?/p>
鏉ユ簮緗戝潃錛?a target="_blank" style="outline-style: none; outline-width: initial; outline-color: initial; text-decoration: none; color: #3d81ee; border-bottom-width: 1px; border-bottom-style: dashed; ">http://zh.wikipedia.org/wiki/瓚呮枃鏈紶杈撳崗璁?.E5.AE.89.E5.85.A8.E6.96.B9.E6.B3.95
榪欓儴鍒嗚璧鋒潵姣旇緝鏅︽訂錛屼笉瑕佺潃鎬ワ紝璇誨畬鍚庨潰鐨勫啀鍥炲ご鐪嬪氨濂界悊瑙d簡(jiǎn)銆?/p>
緇間笂鎵榪幫紝鍙葷粨濡備笅錛?/p>
榪欓噷璇寸殑鏀瑰彉錛屽寘鎷鍔犮佷慨鏀瑰拰鍒犻櫎銆?/p>
榪欐槸 HTTP 鍗忚涓殑瑕佹眰錛屼紬澶氭祻瑙堝櫒鍜屾祻瑙堝櫒鎻掍歡閮介伒瀹堣繖浜涚害瀹氥傚鏋滀綘鐨勪唬鐮佷笉鎸夌収榪欑害瀹氭潵錛屽彲鑳戒細(xì)鍑虹幇涓ラ噸鐨勫悗鏋溿?/p>
鍋囧畾浣犵紪鍐欑殑 Web 紼嬪簭鎴栫綉绔欏厑璁?GET 鎻愪氦鐨勪慨鏀癸紝姣斿鍏佽鐢ㄦ埛閫氳繃浠ヤ笅 Url 鐩存帴鍒犻櫎緙栧啓涓?1024 鐨勮鍗曪細(xì)
~/orders/delete/1024
閭d箞鍦ㄨ鍗曠殑綆$悊錛堟垨鍒楄〃錛夐〉闈紝浣犲彲鑳戒細(xì)瀹氫箟涓涓垹闄よ繛鎺ュ涓嬶細(xì)
<a href="/orders/delete/1024">鍒犻櫎</a>
褰撶劧涓嶄細(xì)榪欎箞綆鍗曪紝涓鑸兘浼?xì)鍦ㄥ垹闄や箣鍓嶄細(xì)鎻惤C虹敤鎴蜂竴涓嬶紝鍔犱笂紜鎻愮ず鑴氭湰錛?/p>
<a href="/orders/delete/1024" onclick="return confirm('紜疄瑕佸垹闄ゅ悧錛?)">鍒犻櫎</a>
錛堣鏄庯細(xì)鎴戝湪榪欓噷鍙槸紺虹畝鍗曚緥涓嬶紝娣誨姞紜鍒犻櫎榪樻槸寤鴻浣跨敤 Unobtrusive JavaScript 鏂瑰紡錛屽彲浠ヤ嬌鐢?jQuery銆傦級(jí)
寰堝寮鍙戜漢鍛樹(shù)互涓鴻繖鏍峰氨涓囦簨澶у悏浜?jiǎn)锛屾湁浜?jiǎn)紜鎻愮ず錛屼篃涓嶆曡鍒犮備絾闂灝辨伆鎭板嚭鍦ㄨ繖閲岋紝2005騫存椂錛岃胺姝屽彂甯冧簡(jiǎn)涓嬈炬祻瑙堝櫒鍔犻熸彃浠訛細(xì)Google Web Accelerator錛堜互涓嬬畝縐?GWA錛夛紝璁╄繖縐嶉棶棰樹(shù)弗閲嶇殑鏆撮湶浜?jiǎn)鍑烘潵銆?/p>
GWA 閫氳繃澶氱鎶鏈潵鍔犻燂紝鍏朵腑涓縐嶅氨鏄〉闈㈤鍏堝姞杞斤細(xì)姣斿浣犲湪鏌ョ湅鎴戣繖綃囨枃绔犵殑鏃跺欙紝GWA 鍙兘鎶婃垜鍓嶄竴綃囨垨鍏跺畠鏂囩珷棰勫厛鍦ㄥ悗鍙頒笅杞斤紝榪欐牱浣犲湪鐐瑰嚮鏃訛紝灝辮妭鐪佷簡(jiǎn)鏃墮棿錛岃搗鍒頒簡(jiǎn)鍔犻熺殑鏁堟灉銆?/p>
GWA 鐨勯鍏堝姞杞芥槸鏍規(guī)嵁褰撳墠欏甸潰涓殑閾炬帴鏉ョ殑錛屾牴鎹?HTTP 鐨勫崗璁紝鐐瑰嚮閾炬帴鏃朵嬌鐢?GET 鏂規(guī)硶鑾峰彇淇℃伅錛屽洜浜涗笉浼?xì)瀵规湇鍔″櫒閫犳垚褰卞搷銆傚洜姝?GWA 浼?xì)鏀惧績(jī)鐨勫姞铦插綋鍓崣宓闈㈤摼鎺ュ搴旂殑缃憴妩c(diǎn)傚綋鐒朵篃鍙兘浼?xì)鍔犻熶笂闈㈡彁鍒扮殑璁㈠崟鍒犻櫎閾炬帴錛孏WA 浼?xì)鏃犺浣犵殑纭鍒犻櫎鑴氭湰锛岀洿鎺ヤ粠鍚庡彴鎶?"/orders/delete/1024" 杞藉叆錛屼篃灝辨剰鍛崇潃 1024 璁㈠崟宸茬粡琚垹闄や簡(jiǎn)銆?/p>
GWA 鍙戝竷鍚庯紝寰堝緗戠珯鍑虹幇浜?jiǎn)寰堝鑾悕鍏跺鐨勯棶棰樺Q屾暟鎹棤鏁呬涪澶憋紝鍟嗗搧鑷姩鍔犲叆浜?jiǎn)鐢ㄦ堬L(fēng)殑璐墿杞︼紝鐢ㄦ埛鏃犵鍦拌鎵f…
涓鏃墮棶棰樺緢涓ラ噸錛屽悗鏉ュ彂鐜扮殑鍘熷洜鐨勬墍鍦紝灝辨槸緗戠珯寮鍙戣呮病鏈夐伒瀹?HTTP 綰﹀畾錛屾病鏈夊紕鏄庣櫧 GET 鍜?POST 鐨勫尯鍒?/p>
鍙互鏌ョ湅浠ヤ笅鏂囩珷娣卞叆浜?jiǎn)瑙q欐鍘嗗彶錛?/p>
http://blogs.adobe.com/cantrell/archives/2005/06/what_have_we_le.html
鑰屽浠婏紝璋鋒瓕鍙戝竷鐨?Chrome 嫻忚鍣紝綾諱技鐨勫姞閫熷姛鑳介泦鎴愪簡(jiǎn)榪涘幓錛屼綘鍙互鍦?nbsp;璁劇疆 - 鏄劇ず楂樼駭璁劇疆 閲岄潰鐪嬪緱鍒幫細(xì)
鎵浠ワ紝瀵規(guī)湇鍔″櫒鏈夋敼鍙樼殑涓瀹氳鐢?POST錛孏WA 鍜岀被浼肩殑鎻掍歡涓嶄細(xì)鎻愪氦 POST 琛ㄥ崟鍔犻熺殑銆?/p>
鍒犻櫎銆佹煡鐪嬬敤鎴蜂俊鎭敹璐癸紙姣斿浜烘墠緗戙佸鎭嬬綉錛夈佸姞鍏ヨ喘鐗╄濺絳夋搷浣滆繕鏄斁鍦?POST 琛ㄥ崟涓敤 Button 鏉ュ惂銆?/p>
鍐嶅洖澶磋緇村熀鐧劇涓 Safe Methods 鐨勮鏄庯紝鐩鎬俊浣犱細(xì)鏄庣櫧寰堝銆?/p>
鍗蟲(chóng)瘡闅斾竴孌墊椂闂村悜鏈嶅姟鍣ㄥ紓姝ヨ姹傛洿鏂幫紝鐢ㄥ洓涓瓧姣嶄唬鏇夸箣灝辨槸AJAX銆?/p>
鍏跺疄鎴戜滑杞康鎯蟲(chóng)兂錛屾垜浠嬌鐢ˋJAX鐨勭洰鐨勫氨鏄嬌欏甸潰鑳藉疄鏃跺湴鏇存柊錛?span style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; padding-top: 0px; padding-right: 0px; padding-bottom: 0px; padding-left: 0px; color: #ff0000; ">鍊樿嫢鎴戜滑鐨勫姩鎬侀〉闈㈣兘澶熷疄鏃跺湴鏇存柊錛屾垜浠共鍢涜繕璐硅繖浜涘懆鎶橈紵
鍏堢湅涓涓皬璇曢獙錛?/p>
濡傛灉濡傛垜浠墍鎰匡紝鍒欓〉闈㈠皢姣忛殧涓縐掗兘浼?xì)鏄窘C轟竴涓?#8216;hello’
鐪嬪埌榪欙紝涔熻鐭ラ亾鎴戜滑鑱婂ぉ瀹ょ殑娑堟伅鏄劇ず欏甸潰璇ユ庝箞鍐欎簡(jiǎn)錛岃鐪嬩吉浠g爜銆?/p>
1 <?php 2 $currentData = getData(); 3 while (true){ 4 $differences=getData(); 5 if ($differences!=$currentData){ 6 echo $differences; 7 } 8 sleep (10000); 9 } 10 ?>
鍙儨鍏夋槸榪欐牱鏄笉鑳芥垚鍔熸淮錛屽洜涓烘垜浠繕娌¤冭檻鍒皃hp鐨勭紦瀛樺拰緙撳啿闂銆?/p>
php榛樿浼?xì)缂撳瓨鍐呭锛岄槻姝ttp鎶ユ枃鐨凥eader鍜孌ata鍒嗙銆備笖php浼?xì)缂撳啿椤甸潰鍐呭鐩磋嚦绋嬪簭缁撴潫鍐崬畣椤甸潰杈撳嚭銆?/p>
鐭ラ亾鍘熷洜灝卞ソ鍔炰簡(jiǎn)銆傚ソ鍦╬hp鎻愪緵浜?jiǎn)鍏抽棴缂撳啿鍜尵~撳瓨鐨勬柟娉曘?/p>
鐩存帴鍦ㄥ墠闈㈠姞涓?/p>
1 output_buffering=0 2 ob_end_flush(); 3 set_time_limit(0);
鍒欏彉?shù)?
1 <?php 2 output_buffering=0; 3 ob_end_flush(); 4 5 while(true){ 6 echo 'Hello'; 7 sleep (1000); 8 flush(); //寮哄埗浣縋HP杈撳嚭 9 } 10 ?>
浣犱細(xì)鍙戠幇絎竴涓樉紺篽ello鐨勫凡緇忔垚鍔熶簡(jiǎn)錛?/p>
鎴戜滑鐨勬秷鎭〉闈㈠氨鍙樹(shù)負(fù)
1 <?php 2 output_buffering=0; 3 ob_end_flush(); 4 5 $currentData = getData(); 6 while (true){ 7 $differences=getData(); 8 if ($differences!=$currentData){ 9 echo $differences; 10 flush(); 11 } 12 sleep (10000); 13 } 14 ?>
浣嗘槸鍦ㄩ」鐩渶緇堢殑瀹炵幇涓婏紝瀹㈡埛绔篃瀛樺湪闂錛?/p>
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