鎺㈢儲(chǔ)HTTP/2: 嫻佺殑鐘舵€?/span>
鎺㈢儲(chǔ)HTTP/2緋誨垪鐨勭鍥涚瘒鏂囩珷錛岃В璇諱簡HTTP/2嫻佺殑鐘舵€侊紝浠ュ強(qiáng)鐘舵€佷箣闂寸殑杞寲銆?2016.10.09鏈€鍚庢洿鏂?1. 姒傝堪
HTTP/2鐨勬祦(Stream)鏄湁鐘舵€佺殑銆傚綋瀹㈡埛绔垨鏈嶅姟鍣ㄧ鍦ㄤ嬌鐢ㄦ煇涓祦鍘誨彂閫佹垨鎺ユ敹鐗瑰畾甯?Frame)鎴栧寘鍚壒瀹氭爣絳?Flag)鐨勫撫鏃訛紝浼?xì)寮曡典h祦鐨勭姸鎬佺殑杞寲銆?a >HTTP 2鍗忚瀹氫箟鐨勬祦鐘舵€侊紝濡備笅鎵€紺猴細(xì)
+--------+
send PP | | recv PP
,--------| idle |--------.
/ | | \
v +--------+ v
+----------+ | +----------+
| | | send H / | |
,------| reserved | | recv H | reserved |------.
| | (local) | | | (remote) | |
| +----------+ v +----------+ |
| | +--------+ | |
| | recv ES | | send ES | |
| send H | ,-------| open |-------. | recv H |
| | / | | \ | |
| v v +--------+ v v |
| +----------+ | +----------+ |
| | half | | | half | |
| | closed | | send R / | closed | |
| | (remote) | | recv R | (local) | |
| +----------+ | +----------+ |
| | | | |
| | send ES / | recv ES / | |
| | send R / v send R / | |
| | recv R +--------+ recv R | |
| send R / `----------->| |<-----------' send R / |
| recv R | closed | recv R |
`----------------------->| |<----------------------'
+--------+
send: endpoint sends this frame
recv: endpoint receives this frame
H: HEADERS frame (with implied CONTINUATIONs)
PP: PUSH_PROMISE frame (with implied CONTINUATIONs)
ES: END_STREAM flag
R: RST_STREAM frame
鎬葷殑璇達(dá)紝HTTP/2涓烘祦鐨勬暣涓敓鍛藉懆鏈熷畾涔変簡7縐嶇姸鎬侊細(xì)idle錛宺eserved (local)錛宺eserved (remote)錛宱pen錛宧alf closed (local)錛宧alf closed (remote)鍜宑losed銆傚綋涓€绔彂閫佹垨鎺ユ敹澶撮儴鍧?鐢變竴涓狧EADERS/PUSH_PROMISE甯у拰绱ч殢瀹冪殑闆跺埌澶氫釜CONTINUATION甯х粍鎴愮殑闆嗗悎)鎴朢ST_STREAM甯э紝鎴栧寘鍚湁END_STREAM鏍囩鐨勫撫(HEADERS鍜孌ATA)涔嬪悗錛屽皢鏀瑰彉?gòu)箒鐨勭姸鎬併€?/span>send PP | | recv PP
,--------| idle |--------.
/ | | \
v +--------+ v
+----------+ | +----------+
| | | send H / | |
,------| reserved | | recv H | reserved |------.
| | (local) | | | (remote) | |
| +----------+ v +----------+ |
| | +--------+ | |
| | recv ES | | send ES | |
| send H | ,-------| open |-------. | recv H |
| | / | | \ | |
| v v +--------+ v v |
| +----------+ | +----------+ |
| | half | | | half | |
| | closed | | send R / | closed | |
| | (remote) | | recv R | (local) | |
| +----------+ | +----------+ |
| | | | |
| | send ES / | recv ES / | |
| | send R / v send R / | |
| | recv R +--------+ recv R | |
| send R / `----------->| |<-----------' send R / |
| recv R | closed | recv R |
`----------------------->| |<----------------------'
+--------+
send: endpoint sends this frame
recv: endpoint receives this frame
H: HEADERS frame (with implied CONTINUATIONs)
PP: PUSH_PROMISE frame (with implied CONTINUATIONs)
ES: END_STREAM flag
R: RST_STREAM frame
嫻佺殑鐘舵€佸熀浜庡悇绔嚜宸辯殑瑙嗚銆傜敱浜庡撫鐨勪紶杈撲細(xì)鏈夌綉緇滃歡榪燂紝鍦ㄥ悓涓€鏃跺埢錛屼笉鍚岀璁や負(fù)鐨勬祦鐨勭姸鎬佸彲鑳芥槸涓嶅悓鐨勩€傛瘮濡傦紝褰撳彂閫佺浣跨敤涓€涓浜巌dle鐘舵€佺殑嫻佸彂閫佷竴涓笉鍖呭惈END_STREAM鏍囩鐨凥EADERS甯т箣鍚庝細(xì)绔嬪嵆璁や負(fù)璇ユ祦澶勪簬open鐘舵€侊紝浣嗘鏃舵帴鏀剁灝氭湭寰楀埌璇EADERS甯э紝鎵€浠ュ湪閭ｄ竴鏃跺埢錛屾帴鏀剁渚濈劧璁や負(fù)璇ユ祦鐨勭姸鎬佹槸idle銆?/span>
2. idle
鎵€鏈夌殑嫻佸湪鍒涘緩涔嬪垵閮藉浜巌dle鐘舵€併€傚浜巌dle鐘舵€佺殑嫻侊紝鍙厑璁歌鐢ㄤ簬鍙戦€丠EADERS甯э紝浣嗗彲浠ヨ鐢ㄤ簬鎺ユ敹HEADERS鍜孭RIORITY甯с€傚湪涓€绔嬌鐢ㄨ鐘舵€佺殑嫻佸彂閫佹垨鎺ユ敹HEADERS甯т箣鍚庯紝璇ョ浼?xì)璁や负姝箒鐨勭姸鎬佽漿鍙樹負(fù)open銆傛帴鏀禤RIORITY甯т笉浼?xì)鏀瑰彉娴佺殑鐘舵€併€?/span>
涓€涓猧dle鐘舵€佺殑嫻佸彲琚彟涓€涓祦閫氳繃鍙戦€?鎺ユ敹PUSH_PROMISE甯т繚鐣欑潃錛屼嬌鍏跺湪灝嗘潵琚敤浜庢湇鍔″櫒绔帹閫併€傝淇濈暀鐨勬祦鐨勭姸鎬佸垯浠巌dle鍙樹負(fù)reserved (local/remote)銆?/span>
3. open
澶勪簬open鐘舵€佺殑嫻佸彲琚敤浜庡彂閫佷換浣曠被鍨嬬殑甯с€備嬌鐢ㄨ鐘舵€佺殑嫻佸幓鍙戦€?鎺ユ敹鍖呭惈鏈塃ND_STREAM鏍囩鐨勫撫(HEADERS鍜孌ATA)涔嬪悗錛屼細(xì)浣胯嫻佺殑鐘舵€佸彉鎴恏alf closed (local/remote)銆備嬌鐢╫pen鐘舵€佺殑嫻佸彂閫佹垨鎺ユ敹RST_STREAM甯т箣鍚庯紝鍒欎細(xì)浣垮畠鐨勭姸鎬佽漿鍙樹負(fù)closed銆?/span>
4. half closed (local/remote)
鐘舵€乭alf closed (local)涓巋alf closed (remote)涓殑local涓巖emote鐨勫尯鍒紝瀹屽叏鏄熀浜庡悇绔嚜宸辯殑瑙嗚銆傚浜庡悓涓€涓祦鐨勪袱绔紝濡傛灉涓€绔涓鴻繖涓祦鐨勭姸鎬佹槸half closed (local)錛岄偅涔堝彟涓€绔彧鑳借涓鴻繖涓祦鐨勭姸鎬佹槸half closed (remote)銆?/span>
澶勪簬half closed (local)鐘舵€佺殑嫻佸彧鑳借鐢ㄤ簬鍙戦€乄INDOW_UPDATE錛孭RIORITY鍜孯ST_STREAM甯э紝浣嗗彲浠ヨ鐢ㄤ簬鎺ユ敹浠諱綍綾誨瀷鐨勫撫銆傜浉瀵瑰簲鍦幫紝澶勪簬half closed (remote)鐘舵€佺殑嫻佸彧鑳借鐢ㄤ簬鎺ユ敹WINDOW_UPDATE錛孭RIORITY鍜孯ST_STREAM甯э紝浣嗗彲浠ヨ鐢ㄤ簬鍙戦€佷換浣曠被鍨嬬殑甯с€?/span>
5. reserved (local/remote)
涓巋alf closed (local/remote)鐘舵€佺浉浼鹼紝reserved (local/remote)鐘舵€佷腑鐨刲ocal涓巖emote涔熸槸鍩轟簬嫻佷袱绔悇鑷殑瑙嗚銆傛洿鍏蜂綋鐨勬槸錛屾湇鍔″櫒绔彂閫丳USH_PROMISE灝嗕竴涓猧dle鐘舵€佺殑嫻佷繚鐣欑潃浠ョ敤浜庢湭鏉ョ殑鎺ㄩ€侊紝騫惰榪欎釜琚繚鐣欑殑嫻佺殑鐘舵€佷負(fù)reserved (local)錛岃€屽鎴風(fēng)鍒欒榪欎釜嫻佺殑鐘舵€佷負(fù)reserved (remote)銆?/span>
鏈嶅姟鍣ㄧ浣跨敤reserved (local)鐘舵€佺殑嫻佸悜瀹㈡埛绔彂閫丠EADERS甯с€傝HEADERS甯у氨鏄湇鍔″櫒绔帹閫?Server Push)涓鎺ㄩ€佺殑鍝嶅簲鐨勫ご閮ㄣ€傚綋鍙戦€佷簡HEADERS甯т箣鍚庯紝鏈嶅姟鍣ㄧ灝嗚璇ユ祦鐨勭姸鎬佷負(fù)half closed (remote)銆?/span>
鐩稿簲鍦幫紝瀹㈡埛绔€氳繃reserved (remote)鐘舵€佺殑嫻佹帴鏀跺埌鏈嶅姟鍣ㄧ鎺ㄩ€佺殑鍝嶅簲鐨勫ご閮紝鐒跺悗浼?xì)瑙嗚娴佺殑鐘舵€佷負(fù)half closed (local)銆?/span>
鎵╁睍涓€涓嬶紝鏈嶅姟鍣ㄧ鎺ㄩ€佷腑琚繚鐣欑殑嫻佺殑鐘舵€佸湪鍙樹負(fù)half closed(local/remote)涔嬪悗鎵嶅彲鑳借鐢ㄤ簬鎺ユ敹/鍙戦€佽鎺ㄩ€佺殑鍝嶅簲鐨勪綋閮紝涔熷氨鏄疍ATA甯с€?/span>
6. closed
褰撲竴绔嬌鐢ㄤ竴涓祦鍙戦€佹垨鎺ユ敹鍒癛ST_STREAM甯э紝鎴栭€氳繃鐘舵€佷負(fù)half closed (local/remote)鐨勬祦鎺ユ敹/鍙戦€佸寘鍚湁END_STREAM鏍囩鐨勫撫涔嬪悗錛岄兘浼?xì)瑙啒q欎釜嫻佺殑鐘舵€佷負(fù)closed銆?/span>
closed鐘舵€侀紺虹潃嫻佺殑緇堢粨錛屽浜庤鐘舵€佺殑嫻佸皢鍙兘鍙戦€佹垨鎺ユ敹PRIORITY甯с€備絾鏈変竴涓壒渚嬨€傚嵆錛屽鏋滈€氳繃浣跨敤half closed (local/remote)鐘舵€佺殑嫻佸幓鎺ユ敹鎴栧彂閫佸寘鍚湁END_STREAM鏍囩鐨勫撫(HEADERS鎴朌ATA)錛屼互浣胯嫻佺殑鐘舵€佸彉涓篶losed錛岄偅涔堝湪姝や箣鍚庣殑杈冪煭鏃墮棿鍐咃紝浠嶇劧鍙互鎺ユ敹WINDOW_UPDATE鎴朢ST_STREAM甯с€?/span>
John Jiang 2016-10-08 21:17 鍙戣〃璇勮
]]>鎺㈢儲(chǔ)HTTP/2: HPACK鍗忚綆€榪?/span>
鎺㈢儲(chǔ)HTTP/2緋誨垪鐨勭涓€綃囨枃绔犲凡緇忎粙緇嶄簡HTTP 2鍗忚錛屾湰鏂囧垯灝嗙畝榪扮敤浜嶩TTP/2澶撮儴鍘嬬緝鐨?a >HPACK鍗忚銆?2016.10.01鏈€鍚庢洿鏂?1. 鍩烘湰鍘熺悊
HPACK澶撮儴鍘嬬緝鐨勫熀鏈師鐞嗗氨鏄嬌鐢ㄧ儲(chǔ)寮曡〃鍜?a >Huffman緙栫爜銆傚湪鍘嬬緝(緙栫爜)涓庤В鍘?瑙ｇ爜)榪囩▼錛屽彲灝嗘寚瀹氱殑澶撮儴瀛楁(鍖呭惈瀛楁鍚嶄笌瀛楁鍊?瀛樺偍鍦ㄧ儲(chǔ)寮曡〃涓€傜儲(chǔ)寮曡〃涓殑姣忎竴涓潯鐩敱绱㈠紩(涓€涓暣鏁?錛屽瓧孌靛悕鍜屽瓧孌靛€肩粍鎴愩€傚浜庡瓨鍦ㄧ儲(chǔ)寮曡〃涓殑澶撮儴瀛楁錛屽湪緙栫爜鏃跺彲浠ヤ粎浣跨敤绱㈠紩浣滀負(fù)璇ュ瓧孌電殑浠ｈ〃錛屽湪瑙ｇ爜鏃墮€氳繃璇ョ儲(chǔ)寮曚粠琛ㄤ腑鏌ユ壘鍑哄搴旂殑瀛楁銆傚浜庡叾瀹冪殑瀛楃涓詫紝鍒欏彲浠ヤ嬌鐢℉uffman緙栫爜榪涜鍘嬬緝銆?br /> 1.1 绱㈠紩琛?/strong>
绱㈠紩琛ㄧ敱闈欐€佽〃涓庡姩鎬佽〃緇勬垚銆傞潤鎬佽〃鐢盚PACK鍗忚棰勫畾涔夌殑61涓父鐢ㄧ殑澶撮儴瀛楁緇勬垚錛屽叾涓ぇ閮ㄥ垎瀛楁鐨勫€間負(fù)絀恒€傞潤鎬佽〃鏄彧璇葷殑錛屽叾涓殑鏉＄洰鍙?qiáng)鍏朵綅缃潎涓嶅彲鏇存攺V€侶PACK鍗忚涓殑闄勫綍A鍒楀嚭浜嗗叏閮ㄧ殑闈欐€佽〃鏉＄洰銆傚姩鎬佽〃涔熺敱涓€緋誨垪澶撮儴瀛楁緇勬垚錛屼絾鍏朵腑鐨勫厓绱犱笉鍥哄畾錛屽湪瀹為檯鎿嶄綔涓彲浠ユ彃鍏ユ柊鐨勬潯鐩紝涔熷厑璁稿垹闄ゅ凡鏈夌殑鏉＄洰銆?br /> HPACK鍗忚瑕佹眰闈欐€佽〃涓庡姩鎬佽〃鍚堝茍鍦ㄥ悓涓€涓瓨鍌ㄧ┖闂翠腑錛屽叾涓潤鎬佽〃緗簬鍓嶉儴錛屽姩鎬佽〃绱ч殢鍏跺悗銆傞偅涔堝湪鏁翠釜绱㈠紩琛ㄧ┖闂翠腑錛屽姩鎬佽〃鐨勭涓€涓潯鐩殑绱㈠紩灝嗘槸62銆傚姩鎬佽〃鐨勭淮鎶ゅ師鍒欐槸鍏堣繘鍏堝嚭(FIFO)銆傚綋鍚戝姩鎬佽〃涓鍔犳潯鐩椂錛屽皢鎬繪槸浠庣62浣嶆彃鍏ワ紝鍘熸湁鐨勬潯鐩皢鍏ㄩ儴鍚戝彸縐誨姩涓€涓綅緗€傚綋浠庡姩鎬佽〃涓垹闄ゆ潯鐩椂錛屽皢鎬繪槸浠庢渶鍚庝竴浣嶈繘琛屽垹闄ゃ€?br /> 铏借錛屽崗璁姹傚皢闈欐€佽〃涓庡姩鎬佽〃鍚堝茍鍦ㄤ竴璧鳳紝浣嗚繖鍙槸閫昏緫涓婄殑瑕佹眰銆傚彧瑕佸姩鎬佽〃鐨勭儲(chǔ)寮曟槸浠?2寮€濮嬶紝閭ｄ箞鍚勪釜瀹炵幇鍙互鏍規(guī)嵁鑷繁鐨勫枩濂借嚜鐢卞湴浣跨敤瀛樺偍鏁版嵁緇撴瀯銆傛瘮濡傦紝鍙互灝嗛潤鎬佽〃鍗曠嫭鏀懼湪涓€涓笉鍙彉鐨勬暟緇勪腑錛岃€屽姩鎬佽〃鐢卞彟涓€涓摼琛ㄨ繘琛屽瓨鍌紝榪欐牱鍙兘浼?xì)渚夸簬鎻掑叆鍜屽垹闄ゆ潯鐩€傚彧涓嶈繃錛岃繖涓摼琛ㄤ腑鍏冪礌鐨勪笅鏍囦笌鍔ㄦ€佽〃涓潯鐩殑绱㈠紩涔嬮棿鐩稿樊62銆?br /> (鍔ㄦ€?绱㈠紩琛ㄤ腑鐨勬潯鐩厑璁?dāng)R噸澶嶃€?br /> 1.2 Huffman緙栫爜
Huffman緙栫爜鏄竴縐嶇敤浜庢棤鎹熸暟鎹帇緙╃殑鏉冭礬寰勭紪鐮佺畻娉曘€傚湪浣跨敤璇ョ畻娉曟椂錛岄渶瑕佷竴寮犳墍鏈夎緙栫爜瀛楃鐨勬潈閲?鍑虹幇棰戠巼)浠ｇ爜琛ㄣ€傚湪瀵瑰ぇ閲忕殑HTTP澶撮儴鏍鋒湰榪涜緇熻涔嬪悗錛屽緱鍑轟簡涓€浠介€傜敤浜嶩PACK鐨凥uffman浠ｇ爜琛紝鐢卞崗璁腑鐨?a >闄勫綍B鍒楀嚭銆?br />
蹇呴』娉ㄦ剰鐨勬槸錛孒PACK鍗忚騫朵笉瑕佹眰璇ュ崗璁殑瀹炵幇涓€瀹氳浣跨敤绱㈠紩琛紝鍗充究鏌愪釜瀛楁宸茬粡瀛樺湪浜庣儲(chǔ)寮曡〃涓簡銆傝€屼笖涔熶笉瑕佹眰涓€瀹氳瀵瑰瓧絎︿覆瀹炴柦Huffman鍘嬬緝銆備篃灝辨槸璇達(dá)紝鐞嗚涓婏紝鍦ㄧ紪鐮佹椂鍙互涓嶅澶撮儴瀛楁榪涜浠諱綍褰㈠紡鐨勫帇緙╋紝鑰屽彧闇€灝嗘墍鏈夌殑瀛楃杞寲鎴愬瓧鑺傚艦寮忋€?br />
2. 鍩烘湰鏁版嵁綾誨瀷琛ㄧず娉?/span>
HPACK鍗忚浣跨敤鐨勫熀鏈暟鎹被鍨嬪彧鏈変袱縐嶏細(xì)鏁存暟錛涘瓧絎︿覆銆傝鍗忚浣跨敤鏁存暟鍘昏〃紺虹儲(chǔ)寮曞拰瀛楃涓茬殑闀垮害銆傚ご閮ㄥ瓧孌靛悕鍜屽€間腑鍑虹幇鐨勬暟瀛楋紝鍙細(xì)琚綋浣滃瓧絎︿覆榪涜澶勭悊銆?br /> 2.1 鏁存暟琛ㄧず娉?/strong>
HPACK鍦ㄨ〃紺烘暣鏁版椂騫朵笉鏄妸瀹冪畝鍗曠殑杞崲鎴愪簩榪涘埗褰㈠紡銆傚洜涓篐PACK甯屾湜姣忎竴涓暣鏁扮殑琛ㄧず鑳藉浠庢煇涓?姣旂壒浣嶅瓧鑺?octet錛屼笅鏂囧皢鍏剁畝鍐欎負(fù)"瀛楄妭")涓殑浠諱綍涓€涓瘮鐗逛綅寮€濮嬶紝浣嗘€繪槸瑕佸湪鏌愪釜瀛楄妭鐨勬渶鍚庝竴涓瘮鐗逛綅緇撴潫銆傛瘮濡傝〃紺?27錛岃瀹冧粠瀛楄妭鐨勭涓€涓瘮鐗逛綅寮€濮嬪～鍏咃紝鑲畾浼?xì)鍦ㄦ渶鍚庝竴涓瘮鐗逛綅緇撴潫錛屽涓嬪浘鎵€紺猴細(xì)
0 1 2 3 4 5 6 7
+---+---+---+---+---+---+---+---+
| 0 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
+---+---+---+---+---+---+---+---+
+---+---+---+---+---+---+---+---+
| 0 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
+---+---+---+---+---+---+---+---+
0 1 2 3 4 5 6 7
+---+---+---+---+---+---+---+---+
| ? | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
+---+---+---+---+---+---+---+---+
+---+---+---+---+---+---+---+---+
| ? | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
+---+---+---+---+---+---+---+---+
0 1 2 3 4 5 6 7
+---+---+---+---+---+---+---+---+
| ? | ? | 1 | 1 | 1 | 1 | 1 | 1 |
+---+---+---+-------------------+
| 1 | ? | ? | ? | ? | ? | ? | ? |
+---+---+---+---+---+---+---+---+
+---+---+---+---+---+---+---+---+
| ? | ? | 1 | 1 | 1 | 1 | 1 | 1 |
+---+---+---+-------------------+
| 1 | ? | ? | ? | ? | ? | ? | ? |
+---+---+---+---+---+---+---+---+
0 1 2 3 4 5 6 7
+---+---+---+---+---+---+---+---+
| ? | ? | 1 | 1 1 1 1 1 |
+---+---+---+-------------------+
| 1 | Value-(2^N-1) LSB |
+---+---------------------------+
...
+---+---------------------------+
| 0 | Value-(2^N-1) MSB |
+---+---------------------------+
+---+---+---+---+---+---+---+---+
| ? | ? | 1 | 1 1 1 1 1 |
+---+---+---+-------------------+
| 1 | Value-(2^N-1) LSB |
+---+---------------------------+
...
+---+---------------------------+
| 0 | Value-(2^N-1) MSB |
+---+---------------------------+
public void encodeInteger(int value, int prefix) {
if (value >> prefix <= 0) {
printBinary(value);
} else {
int number = (1 << prefix) - 1;
printBinary(number);
for (value -= number; value >= 128; value /= 128) {
printBinary(value % 128 + 128);
}
printBinary(value);
}
}
private void printBinary(int value) {
System.out.println(String.format("%8s", Integer.toBinaryString(value)).replace(" ", "0"));
}
鏍規(guī)嵁涓婅堪綆楁硶鍙煡錛屽綋prefix涓?鏃訛紝127鐨勮〃紺烘硶濡備笅鍥炬墍紺猴細(xì)if (value >> prefix <= 0) {
printBinary(value);
} else {
int number = (1 << prefix) - 1;
printBinary(number);
for (value -= number; value >= 128; value /= 128) {
printBinary(value % 128 + 128);
}
printBinary(value);
}
}
private void printBinary(int value) {
System.out.println(String.format("%8s", Integer.toBinaryString(value)).replace(" ", "0"));
}
0 1 2 3 4 5 6 7
+---+---+---+---+---+---+---+---+
| ? | ? | 1 | 1 | 1 | 1 | 1 | 1 |
+---+---+---+-------------------+
| 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
+---+---+---+-------------------+
+---+---+---+---+---+---+---+---+
| ? | ? | 1 | 1 | 1 | 1 | 1 | 1 |
+---+---+---+-------------------+
| 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
+---+---+---+-------------------+
0 1 2 3 4 5 6 7
+---+---+---+---+---+---+---+---+
| H | String Length (7+) |
+---+---------------------------+
| String Data (Length octets) |
+-------------------------------+
+---+---+---+---+---+---+---+---+
| H | String Length (7+) |
+---+---------------------------+
| String Data (Length octets) |
+-------------------------------+
3. 澶撮儴瀛楁琛ㄧず娉?/span>
鏈変簡絎?鑺備粙緇嶇殑鍩烘湰鏁版嵁綾誨瀷鐨勮〃紺烘硶浣滀負(fù)鍩虹錛岀幇鍦ㄥ氨鍙互闃愯堪澶撮儴瀛楁鐨勮〃紺烘硶浜嗐€侶PACK鍗忚灝嗗瓧孌佃〃紺烘硶鍒嗘垚3縐嶇被鍨嬨€傚湪琛ㄧず娉曞紑澶存湁涓€涓垨鑻ュ共涓瘮鐗逛綅鐢ㄤ簬琛ㄧず綾誨瀷銆?br /> 3.1 宸插湪绱㈠紩琛ㄧ殑澶撮儴瀛楁
綾誨瀷鏍囪瘑鍗犵敤1涓瘮鐗逛綅錛屽€間負(fù)1銆傜儲(chǔ)寮曚嬌鐢╬refix涓?鐨勬暣鏁拌〃紺烘硶銆傚湪瑙ｇ爜鏃訛紝涓嶄細(xì)鏇存柊鍔ㄦ€佽〃銆?br />
0 1 2 3 4 5 6 7
+---+---+---+---+---+---+---+---+
| 1 | Index (7+) |
+---+---------------------------+
+---+---+---+---+---+---+---+---+
| 1 | Index (7+) |
+---+---------------------------+
綾誨瀷鏍囪瘑鍗犵敤2涓瘮鐗逛綅錛屽€間負(fù)01銆傚湪瑙ｇ爜鏃訛紝浼?xì)鍚戝姩鎬佽〃鍐呮彃鍏ユ柊鏉＄洰銆傝繖縐嶇被鍨嬪張琚垎鎴愪袱縐嶆儏鍐碉細(xì)
[1]澶撮儴瀛楁鍚嶅凡鍦ㄧ儲(chǔ)寮曡〃涓紝瀛楁鍚嶇儲(chǔ)寮曚嬌鐢╬refix涓?鐨勬暣鏁拌〃紺烘硶錛岃€屽瓧孌靛€間嬌鐢ㄥ瓧絎︿覆琛ㄧず娉曘€?br />
0 1 2 3 4 5 6 7
+---+---+---+---+---+---+---+---+
| 0 | 1 | Index (6+) |
+---+---+-----------------------+
| H | Value Length (7+) |
+---+---------------------------+
| Value String (Length octets) |
+-------------------------------+
+---+---+---+---+---+---+---+---+
| 0 | 1 | Index (6+) |
+---+---+-----------------------+
| H | Value Length (7+) |
+---+---------------------------+
| Value String (Length octets) |
+-------------------------------+
0 1 2 3 4 5 6 7
+---+---+---+---+---+---+---+---+
| 0 | 1 | 0 |
+---+---+-----------------------+
| H | Name Length (7+) |
+---+---------------------------+
| Name String (Length octets) |
+---+---------------------------+
| H | Value Length (7+) |
+---+---------------------------+
| Value String (Length octets) |
+-------------------------------+
+---+---+---+---+---+---+---+---+
| 0 | 1 | 0 |
+---+---+-----------------------+
| H | Name Length (7+) |
+---+---------------------------+
| Name String (Length octets) |
+---+---------------------------+
| H | Value Length (7+) |
+---+---------------------------+
| Value String (Length octets) |
+-------------------------------+
綾誨瀷鏍囪瘑鍗犵敤4涓瘮鐗逛綅錛屽€間負(fù)0000銆傚湪瑙ｇ爜鏃訛紝涓嶅悜鍔ㄦ€佽〃鍐呮彃鍏ユ柊鏉＄洰銆傝繖縐嶇被鍨嬪張琚垎鎴愪袱縐嶆儏鍐碉細(xì)
[1]澶撮儴瀛楁鍚嶅凡鍦ㄧ儲(chǔ)寮曡〃涓紝瀛楁鍚嶇儲(chǔ)寮曚嬌鐢╬refix涓?鐨勬暣鏁拌〃紺烘硶錛岃€屽瓧孌靛€間嬌鐢ㄥ瓧絎︿覆琛ㄧず娉曘€?br />
0 1 2 3 4 5 6 7
+---+---+---+---+---+---+---+---+
| 0 | 0 | 0 | 0 | Index (4+) |
+---+---+-----------------------+
| H | Value Length (7+) |
+---+---------------------------+
| Value String (Length octets) |
+-------------------------------+
+---+---+---+---+---+---+---+---+
| 0 | 0 | 0 | 0 | Index (4+) |
+---+---+-----------------------+
| H | Value Length (7+) |
+---+---------------------------+
| Value String (Length octets) |
+-------------------------------+
0 1 2 3 4 5 6 7
+---+---+---+---+---+---+---+---+
| 0 | 0 | 0 | 0 | 0 |
+---+---+-----------------------+
| H | Name Length (7+) |
+---+---------------------------+
| Name String (Length octets) |
+---+---------------------------+
| H | Value Length (7+) |
+---+---------------------------+
| Value String (Length octets) |
+---+---------------------------+
+---+---+---+---+---+---+---+---+
| 0 | 0 | 0 | 0 | 0 |
+---+---+-----------------------+
| H | Name Length (7+) |
+---+---------------------------+
| Name String (Length octets) |
+---+---------------------------+
| H | Value Length (7+) |
+---+---------------------------+
| Value String (Length octets) |
+---+---------------------------+
綾誨瀷鏍囪瘑鍗犵敤4涓瘮鐗逛綅錛屽€間負(fù)0001銆傚湪瑙ｇ爜鏃訛紝涓嶅悜鍔ㄦ€佽〃鍐呮彃鍏ユ柊鏉＄洰銆傝繖縐嶇被鍨嬪張琚垎鎴愪袱縐嶆儏鍐碉細(xì)
[1]澶撮儴瀛楁鍚嶅凡鍦ㄧ儲(chǔ)寮曡〃涓紝瀛楁鍚嶇儲(chǔ)寮曚嬌鐢╬refix涓?鐨勬暣鏁拌〃紺烘硶錛岃€屽瓧孌靛€間嬌鐢ㄥ瓧絎︿覆琛ㄧず娉曘€?br />
0 1 2 3 4 5 6 7
+---+---+---+---+---+---+---+---+
| 0 | 0 | 0 | 1 | Index (4+) |
+---+---+-----------------------+
| H | Value Length (7+) |
+---+---------------------------+
| Value String (Length octets) |
+-------------------------------+
+---+---+---+---+---+---+---+---+
| 0 | 0 | 0 | 1 | Index (4+) |
+---+---+-----------------------+
| H | Value Length (7+) |
+---+---------------------------+
| Value String (Length octets) |
+-------------------------------+
0 1 2 3 4 5 6 7
+---+---+---+---+---+---+---+---+
| 0 | 0 | 0 | 1 | 0 |
+---+---+-----------------------+
| H | Name Length (7+) |
+---+---------------------------+
| Name String (Length octets) |
+---+---------------------------+
| H | Value Length (7+) |
+---+---------------------------+
| Value String (Length octets) |
+-------------------------------+
+---+---+---+---+---+---+---+---+
| 0 | 0 | 0 | 1 | 0 |
+---+---+-----------------------+
| H | Name Length (7+) |
+---+---------------------------+
| Name String (Length octets) |
+---+---------------------------+
| H | Value Length (7+) |
+---+---------------------------+
| Value String (Length octets) |
+-------------------------------+
4. 鍔ㄦ€佽〃鐨勭鐞?/span>
鍔ㄦ€佽〃涓殑鏉＄洰琚涓烘槸鏈夊昂瀵哥殑錛屽叾璁＄畻鍏紡涓猴細(xì)瀛楁鍚嶇殑瀛楄妭闀垮害+瀛楁鍊肩殑瀛楄妭闀垮害+32銆傚瓧孌靛悕/鍊肩殑闀垮害鏄寚瀹冧滑鐨勫師濮嬪瓧鑺傜殑闀垮害錛岃€岄潪緇忚繃Huffman緙栫爜鍚庣殑瀛楄妭鐨勯暱搴︺€?br /> 鍔ㄦ€佽〃鐨勫昂瀵稿氨鏄叾涓墍鏈夋潯鐩殑灝哄涔嬪拰銆傚姩鎬佽〃鐨勬渶澶у昂瀵告槸鏈夐檺鐨勶紝鍙互閫氳繃涓嬮潰鐨勬暣鏁拌〃紺烘硶鏉ラ€氱煡鍗忚鐨勭幇瀹炲幓鏀瑰彉鍔ㄦ€佽〃鐨勬渶澶у昂瀵搞€?br />
0 1 2 3 4 5 6 7
+---+---+---+---+---+---+---+---+
| 0 | 0 | 1 | Max size (5+) |
+---+---------------------------+
+---+---+---+---+---+---+---+---+
| 0 | 0 | 1 | Max size (5+) |
+---+---------------------------+
John Jiang 2016-09-24 20:29 鍙戣〃璇勮
]]>鎺㈢儲(chǔ)HTTP/2: 鍒濊瘯HTTP/2
鐩墠鏀寔HTTP/2鐨勬湇鍔″櫒绔笌瀹㈡埛绔疄鐜板凡鏈変笉灝戯紝鎺㈢儲(chǔ)HTTP/2緋誨垪鐨勭浜岀瘒灝卞垎鍒互Jetty鍜宑url浣滀負(fù)鏈嶅姟鍣ㄧ鍜屽鎴風(fēng)錛屾弿榪頒簡HTTP/2嫻嬭瘯鐜鐨勬惌寤鴻繃紼嬨€傛湰鏂囪繕灝嗕嬌鐢ㄨ繖涓祴璇曠幆澧冨幓灞曠ずJetty鍦ㄥ疄鐜癏TTP/2鏃剁殑涓€涓眬闄愬拰涓€涓狟ug銆?2016.09.22鏈€鍚庢洿鏂?1. HTTP/2鐨勫疄鐜?/span>
鐩墠宸茬粡鏈変紬澶氱殑鏈嶅姟鍣ㄧ鍜屽鎴風(fēng)瀹炵幇浜嗗HTTP/2鐨勬敮鎸併€傚湪鏈嶅姟鍣ㄧ錛岃憲鍚嶇殑Apache httpd浠?.4.17鐗堬紝Nginx浠?.9.5鐗堬紝寮€濮嬫敮鎸丠TTP/2銆傚湪瀹㈡埛绔紝涓繪祦鐨勬祻瑙堝櫒錛屽Chrome錛孎ireFox鍜孖E錛岀殑鏈€鏂扮増鍧囨敮鎸丠TTP/2錛屼絾瀹冧滑閮藉彧鏀寔榪愯鍦═LS涓婄殑HTTP/2(鍗砲2)銆備嬌鐢↗ava璇█瀹炵幇鐨勶紝鍒欐湁Jetty鍜孨etty錛屽畠浠兘瀹炵幇浜嗘湇鍔″櫒绔拰瀹㈡埛绔€傛澶勬湁涓€浠紿TTP/2瀹炵幇鐨勫垪琛細(xì)https://github.com/http2/http2-spec/wiki/Implementations
鍙﹀錛岃繕鏈変竴浜涘伐鍏鋒敮鎸佸HTTP/2鐨勫垎鏋愪笌璋冭瘯錛屽curl鍜學(xué)ireShark銆傝繖閲屼篃鏈変竴浠芥綾誨伐鍏風(fēng)殑鍒楄〃錛?a >https://github.com/http2/http2-spec/wiki/Tools
2. 鏈嶅姟鍣ㄧ
浣滀負(fù)Java紼嬪簭鍛橈紝閫夌敤涓€嬈句嬌鐢↗ava璇█緙栧啓鐨勫紑婧怘TTP/2鏈嶅姟鍣ㄧ瀹炵幇浼間箮鏄緢鑷劧鐨勭粨鏋溿€傚疄闄呬笂錛屽湪鏃ュ悗鐨勭爺絀朵腑錛屾垜浠篃闇€瑕佹煡鐪嬫湇鍔″櫒绔殑婧愪唬鐮併€傝繖瀵逛簬娣卞叆鍦扮悊瑙TTP/2錛屽茍鍙戠幇瀹炵幇涓彲鑳界殑闂錛屽叿鏈夌幇瀹炴剰涔夈€?/span>
鏈枃閫夋嫨Jetty鐨勬渶鏂扮増鏈?.3.11浣滀負(fù)鏈嶅姟鍣ㄧ銆侸etty鏄竴涓垚鐔熺殑Servlet瀹瑰櫒錛岃繖涓哄紑鍙慦eb搴旂敤紼嬪簭鎻愪緵浜嗘瀬澶т究鍒┿€傝€屾湰鏂囩1鑺備腑鎻愬埌鐨凬etty鏄竴涓紶杈撳眰妗嗘灦錛屽畠涓撴敞浜庣綉緇滅▼搴忋€傚彲浠ヤ嬌鐢∟etty鍘誨紑鍙戜竴涓猄ervlet瀹瑰櫒錛屼絾榪欐樉鐒朵笉濡傜洿鎺ヤ嬌鐢↗etty鏂逛究銆?/span>
瀹夎鍜岄厤緗甁etty鏄竴浠跺緢瀹規(guī)槗鐨勪簨鎯咃紝鍏蜂綋榪囩▼濡備笅鎵€紺恒€?/span>
鍋囪姝ゆ椂宸茬粡涓嬭澆騫惰В鍘嬪ソ浜咼etty 9.3.11鐨勫帇緙╂枃浠訛紝鐩綍鍚嶄負(fù)jetty-9.3.11銆傚湪鍏朵腑鍒涘緩涓€涓猼est-base瀛愮洰褰曪紝浣滀負(fù)灝嗚鍒涘緩鐨凧etty Base鐨勭洰褰曘€?/span>
$ cd jetty-9.3.11
$ mkdir test-base
$ cd test-base
鍦ㄥ垱寤築ase鏃訛紝鍔犲叆鏀寔http錛宧ttps錛宧ttp2(h2)錛宧ttp2c(h2c)鍜宒eploy鐨勬ā鍧椼€?/span>$ mkdir test-base
$ cd test-base
$ java -jar ../start.jar --add-to-startd=http,https,http2,http2c,deploy
ALERT: There are enabled module(s) with licenses.
The following 1 module(s):
+ contains software not provided by the Eclipse Foundation!
+ contains software not covered by the Eclipse Public License!
+ has not been audited for compliance with its license
Module: alpn
+ ALPN is a hosted at github under the GPL v2 with ClassPath Exception.
+ ALPN replaces/modifies OpenJDK classes in the java.sun.security.ssl package.
+ http://github.com/jetty-project/jetty-alpn
+ http://openjdk.java.net/legal/gplv2+ce.html
Proceed (y/N)? y
INFO: server initialised (transitively) in ${jetty.base}\start.d\server.ini
INFO: http initialised in ${jetty.base}\start.d\http.ini
INFO: ssl initialised (transitively) in ${jetty.base}\start.d\ssl.ini
INFO: alpn initialised (transitively) in ${jetty.base}\start.d\alpn.ini
INFO: http2c initialised in ${jetty.base}\start.d\http2c.ini
INFO: https initialised in ${jetty.base}\start.d\https.ini
INFO: deploy initialised in ${jetty.base}\start.d\deploy.ini
INFO: http2 initialised in ${jetty.base}\start.d\http2.ini
DOWNLOAD: http://central.maven.org/maven2/org/mortbay/jetty/alpn/alpn-boot/8.1.5.v20150921/alpn-boot-8.1.5.v20150921.jar to ${jetty.base}\lib\alpn\alpn-boot-8.1.5.v20150921.jar
DOWNLOAD: https://raw.githubusercontent.com/eclipse/jetty.project/master/jetty-server/src/test/config/etc/keystore?id=master to ${jetty.base}\etc\keystore
MKDIR: ${jetty.base}\webapps
INFO: Base directory was modified
娉ㄦ剰錛屽湪涓婅堪榪囩▼涓紝浼?xì)鏍规嵁褰撳墠鐜鍙橀噺涓娇鐢ㄧ殑Java鐗堟湰(姝ゅ涓?.8.0_60)鍘諱笅杞戒竴涓搴旂殑TLS-ALPN瀹炵幇jar鏂囦歡(姝ゅ涓篴lpn-boot-8.1.5.v20150921.jar)錛岃jar浼?xì)鐢ㄤ簬瀵筯2鐨勬敮鎸併€傚綋鍚姩Jetty鏃訛紝璇ar浼?xì)琚獼ava鐨凚ootstrap class loader鍔犺澆鍒扮被璺緞涓€?/span>ALERT: There are enabled module(s) with licenses.
The following 1 module(s):
+ contains software not provided by the Eclipse Foundation!
+ contains software not covered by the Eclipse Public License!
+ has not been audited for compliance with its license
Module: alpn
+ ALPN is a hosted at github under the GPL v2 with ClassPath Exception.
+ ALPN replaces/modifies OpenJDK classes in the java.sun.security.ssl package.
+ http://github.com/jetty-project/jetty-alpn
+ http://openjdk.java.net/legal/gplv2+ce.html
Proceed (y/N)? y
INFO: server initialised (transitively) in ${jetty.base}\start.d\server.ini
INFO: http initialised in ${jetty.base}\start.d\http.ini
INFO: ssl initialised (transitively) in ${jetty.base}\start.d\ssl.ini
INFO: alpn initialised (transitively) in ${jetty.base}\start.d\alpn.ini
INFO: http2c initialised in ${jetty.base}\start.d\http2c.ini
INFO: https initialised in ${jetty.base}\start.d\https.ini
INFO: deploy initialised in ${jetty.base}\start.d\deploy.ini
INFO: http2 initialised in ${jetty.base}\start.d\http2.ini
DOWNLOAD: http://central.maven.org/maven2/org/mortbay/jetty/alpn/alpn-boot/8.1.5.v20150921/alpn-boot-8.1.5.v20150921.jar to ${jetty.base}\lib\alpn\alpn-boot-8.1.5.v20150921.jar
DOWNLOAD: https://raw.githubusercontent.com/eclipse/jetty.project/master/jetty-server/src/test/config/etc/keystore?id=master to ${jetty.base}\etc\keystore
MKDIR: ${jetty.base}\webapps
INFO: Base directory was modified
鍒涘緩涓€涓渶綆€鍗曠殑Web搴旂敤錛屼嬌瀹冨湪鏍圭洰褰曚笅鍖呭惈涓€涓枃鏈枃浠秈ndex錛屽唴瀹逛負(fù)"HTTP/2 Test"銆?/span>鍐嶅寘鍚竴涓畝鍗曠殑Servlet錛屼唬鐮佸涓嬶細(xì)
package test;
import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
public class TestServlet extends HttpServlet {
private static final long serialVersionUID = 5222793251610509039L;
@Override
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
response.getWriter().println("Test");
}
@Override
public void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
doGet(request, response);
}
}
web.xml涓昏鏄畾涔変簡涓€涓猄ervlet錛屽叿浣撳唴瀹瑰涓嬶細(xì)import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
public class TestServlet extends HttpServlet {
private static final long serialVersionUID = 5222793251610509039L;
@Override
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
response.getWriter().println("Test");
}
@Override
public void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
doGet(request, response);
}
}
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd"
metadata-complete="false" version="3.1">
<welcome-file-list>
<welcome-file>index</welcome-file>
</welcome-file-list>
<servlet>
<servlet-name>test</servlet-name>
<servlet-class>test.TestServlet</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>test</servlet-name>
<url-pattern>/test/*</url-pattern>
</servlet-mapping>
</web-app>
璇ュ簲鐢ㄧ殑閮ㄧ講璺緞涓簀etty-9.3.11/test-base/webapps/test.war銆傚湪璇AR鏂囦歡鎵€鍦ㄧ殑鐩綍涓嬶紝鍒涘緩涓€涓猼est.xml錛屽叾鍐呭濡備笅鎵€紺猴細(xì)<web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd"
metadata-complete="false" version="3.1">
<welcome-file-list>
<welcome-file>index</welcome-file>
</welcome-file-list>
<servlet>
<servlet-name>test</servlet-name>
<servlet-class>test.TestServlet</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>test</servlet-name>
<url-pattern>/test/*</url-pattern>
</servlet-mapping>
</web-app>
<?xml version="1.0" encoding="ISO-8859-1"?>
<!DOCTYPE Configure PUBLIC "-//Jetty//Configure//EN" "http://www.eclipse.org/jetty/configure_9_0.dtd">
<Configure class="org.eclipse.jetty.webapp.WebAppContext">
<Set name="contextPath">/</Set>
<Set name="war"><SystemProperty name="jetty.base" default="."/>/webapps/test.war</Set>
</Configure>
鍚姩Jetty鏈嶅姟鍣紝浣跨敤榛樿鐨凥TTP鍜孒TTPS绔彛錛屽垎鍒負(fù)8080鍜?443銆?/span><!DOCTYPE Configure PUBLIC "-//Jetty//Configure//EN" "http://www.eclipse.org/jetty/configure_9_0.dtd">
<Configure class="org.eclipse.jetty.webapp.WebAppContext">
<Set name="contextPath">/</Set>
<Set name="war"><SystemProperty name="jetty.base" default="."/>/webapps/test.war</Set>
</Configure>
$ java -jar ../start.jar
2016-09-15 21:15:51.190:INFO:oejs.Server:main: jetty-9.3.11.v20160721
2016-09-15 21:15:51.237:INFO:oejdp.ScanningAppProvider:main: Deployment monitor [file:///D:/http2/jetty/jetty-9.3.11/test-base/webapps/] at interval 1
2016-09-15 21:15:52.251:INFO:oejw.StandardDescriptorProcessor:main: NO JSP Support for /test.war, did not find org.eclipse.jetty.jsp.JettyJspServlet
2016-09-15 21:15:52.313:INFO:oejsh.ContextHandler:main: Started o.e.j.w.WebAppContext@4520ebad{/test.war,file:///D:/http2/jetty/jetty-9.3.11/test-base/webapps/test.war/,AVAILABLE}{D:\http2\jetty\jetty-9.3.11\test-base\webapps\test.war}
2016-09-15 21:15:52.391:INFO:oejw.StandardDescriptorProcessor:main: NO JSP Support for /, did not find org.eclipse.jetty.jsp.JettyJspServlet
2016-09-15 21:15:52.391:INFO:oejsh.ContextHandler:main: Started o.e.j.w.WebAppContext@711f39f9{/,file:///D:/http2/jetty/jetty-9.3.11/test-base/webapps/test.war/,AVAILABLE}{/test.war}
2016-09-15 21:15:52.532:INFO:oejs.AbstractConnector:main: Started ServerConnector@1b68ddbd{HTTP/1.1,[http/1.1, h2c, h2c-17, h2c-16, h2c-15, h2c-14]}{0.0.0.0:8080}
2016-09-15 21:15:52.735:INFO:oejus.SslContextFactory:main: x509=X509@e320068(jetty,h=[jetty.eclipse.org],w=[]) for SslContextFactory@1f57539(file:///D:/http2/jetty/jetty-9.3.11/test-base/etc/keystore,file:///D:/http2/jetty/jetty-9.3.11/test-base/etc/keystore)
2016-09-15 21:15:52.735:INFO:oejus.SslContextFactory:main: x509=X509@76f2b07d(mykey,h=[],w=[]) for SslContextFactory@1f57539(file:///D:/http2/jetty/jetty-9.3.11/test-base/etc/keystore,file:///D:/http2/jetty/jetty-9.3.11/test-base/etc/keystore)
2016-09-15 21:15:53.234:INFO:oejs.AbstractConnector:main: Started ServerConnector@4b168fa9{SSL,[ssl, alpn, h2, h2-17, h2-16, h2-15, h2-14, http/1.1]}{0.0.0.0:8443}
2016-09-15 21:15:53.249:INFO:oejs.Server:main: Started @3940ms
鏍規(guī)嵁涓婅堪鏃ュ織鍙煡錛孞etty鍚敤浜哤eb搴旂敤test.war錛岃繕鍚姩浜嗕袱涓猄erverConnector錛屼竴涓敮鎸乭2c錛屽彟涓€涓敮鎸乭2銆傚€煎緱娉ㄦ剰鐨勬槸錛岃繖涓や釜ServerConnector榪樺垎鍒敮鎸乭2c-17, h2c-16, h2c-15, h2c-14鍜宧2-17, h2-16, h2-15, h2-14銆傝繖鏄洜涓猴紝HTTP/2鍦ㄦ寮忓彂甯冧箣鍓嶏紝鍏堝悗鍙戝竷浜?8涓崏妗堬紝鍏剁紪鍙蜂負(fù)00-17銆傛墍浠ワ紝榪欓噷鐨刪2c-XX鍜宧2-XX鎸囩殑灝辨槸絎琗X鍙瘋崏妗堛€?/span>2016-09-15 21:15:51.190:INFO:oejs.Server:main: jetty-9.3.11.v20160721
2016-09-15 21:15:51.237:INFO:oejdp.ScanningAppProvider:main: Deployment monitor [file:///D:/http2/jetty/jetty-9.3.11/test-base/webapps/] at interval 1
2016-09-15 21:15:52.251:INFO:oejw.StandardDescriptorProcessor:main: NO JSP Support for /test.war, did not find org.eclipse.jetty.jsp.JettyJspServlet
2016-09-15 21:15:52.313:INFO:oejsh.ContextHandler:main: Started o.e.j.w.WebAppContext@4520ebad{/test.war,file:///D:/http2/jetty/jetty-9.3.11/test-base/webapps/test.war/,AVAILABLE}{D:\http2\jetty\jetty-9.3.11\test-base\webapps\test.war}
2016-09-15 21:15:52.391:INFO:oejw.StandardDescriptorProcessor:main: NO JSP Support for /, did not find org.eclipse.jetty.jsp.JettyJspServlet
2016-09-15 21:15:52.391:INFO:oejsh.ContextHandler:main: Started o.e.j.w.WebAppContext@711f39f9{/,file:///D:/http2/jetty/jetty-9.3.11/test-base/webapps/test.war/,AVAILABLE}{/test.war}
2016-09-15 21:15:52.532:INFO:oejs.AbstractConnector:main: Started ServerConnector@1b68ddbd{HTTP/1.1,[http/1.1, h2c, h2c-17, h2c-16, h2c-15, h2c-14]}{0.0.0.0:8080}
2016-09-15 21:15:52.735:INFO:oejus.SslContextFactory:main: x509=X509@e320068(jetty,h=[jetty.eclipse.org],w=[]) for SslContextFactory@1f57539(file:///D:/http2/jetty/jetty-9.3.11/test-base/etc/keystore,file:///D:/http2/jetty/jetty-9.3.11/test-base/etc/keystore)
2016-09-15 21:15:52.735:INFO:oejus.SslContextFactory:main: x509=X509@76f2b07d(mykey,h=[],w=[]) for SslContextFactory@1f57539(file:///D:/http2/jetty/jetty-9.3.11/test-base/etc/keystore,file:///D:/http2/jetty/jetty-9.3.11/test-base/etc/keystore)
2016-09-15 21:15:53.234:INFO:oejs.AbstractConnector:main: Started ServerConnector@4b168fa9{SSL,[ssl, alpn, h2, h2-17, h2-16, h2-15, h2-14, http/1.1]}{0.0.0.0:8443}
2016-09-15 21:15:53.249:INFO:oejs.Server:main: Started @3940ms
3. 瀹㈡埛绔?/span>
鍏跺疄鏈€鏂逛究鐨勫鎴風(fēng)灝辨槸嫻忚鍣ㄤ簡銆傚彧瑕佷嬌鐢ㄧ殑FireFox鎴朇hrome鐗堟湰涓嶆槸澶€侊紝鑲畾閮藉凡緇忔敮鎸佷簡HTTP/2錛岃€屼笖榪欎竴鍔熻兘鏄粯璁ゆ墦寮€鐨勩€備篃灝辨槸璇達(dá)紝褰撲嬌鐢‵ireFox鍘昏闂墠闈㈡墍閮ㄧ講鐨刉eb搴旂敤鏃訛紝灝辨槸鍦ㄤ嬌鐢℉TTP/2錛屼絾浣犱笉浼?xì)鎰熻鍒皹q欑鍙樺寲銆備嬌鐢‵ireFox鎻愪緵鐨凞eveloper Tools涓殑Network宸ュ叿鏌ョ湅鏈嶅姟鍣ㄧ鐨勫搷搴旓紝浼?xì)鍙戠幇HTTP鐗堟湰涓篐TTP/2.0銆備絾姝ゅ甯屾湜榪欎釜瀹㈡埛绔兘澶熸彁渚涙洿涓轟赴瀵岀殑涓庢湇鍔″櫒绔繘琛屼氦浜掔殑鍔熻兘錛岄偅涔堟祻瑙堝櫒灝卞茍涓嶅悎閫備簡銆?br /> Jetty涔熷疄鐜頒簡鏀寔HTTP/2鐨勫鎴風(fēng)錛屼絾榪欎釜瀹㈡埛绔槸涓€涓狝PI錛岄渶瑕佺紪鍐欑▼搴忓幓璁塊棶HTTP/2鏈嶅姟鍣ㄧ銆傝€屼笖錛岀洰鍓嶈API鐨勮璁℃娊璞″眰嬈¤緝浣庯紝闇€瑕佸簲鐢ㄧ▼搴忓憳瀵笻TTP/2鍗忚錛屾瘮濡傚悇縐嶅撫錛屾湁杈冩繁鍏ョ殑浜嗚В銆傝繖瀵逛簬鍒濇秹HTTP/2鐨勫紑鍙戣€呮潵璇達(dá)紝鏄劇劧寰堜笉鍚堥€傘€傛湰鏂囬€夋嫨浣跨敤C璇█緙栧啓鐨勪竴涓伐鍏鳳紝鍏跺疄涔熸槸HTTP/2鐨勫鎴風(fēng)瀹炵幇涔嬩竴錛宑url銆?/span>
curl鍦ㄦ敮鎸丠TTP/2鏃訛紝瀹為檯涓婃槸浣跨敤浜唍ghttp2鐨凜搴擄紝鎵€浠ラ渶瑕佸厛瀹夎nghttp2銆傚彟澶栵紝涓轟簡璁ヽurl鏀寔h2錛屽氨蹇呴』瑕佹湁TLS-ALPN鐨勬敮鎸併€傞偅涔堬紝涓€鑸湴榪橀渶瑕佸畨瑁匫penSSL 1.0.2+銆?/span>
緗戠粶涓婂叧浜庡湪Linux涓嬪畨瑁呮敮鎸丠TTP/2鐨刢url鐨勮祫婧愭湁寰堝錛岃繃紼嬪茍涓嶉毦錛屼絾鏈夌偣鍎跨箒錛岃瀹夎鐨勪緷璧栨瘮杈冨錛屾湰鏂囧氨涓嶈禈榪頒簡銆傚鏋滄槸浣跨敤Windows錛岀瑪鑰呮瘮杈冩帹鑽愰€氳繃Cygwin鏉ュ畨瑁呭拰浣跨敤curl銆傚湪Windows涓畨瑁匔ygwin闈炲父綆€鍗曪紝鍦–ygwin涓墽琛屽悇縐嶅懡浠ゆ椂錛屾劅瑙変笂灝卞鍚屽湪浣跨敤Linux錛屽敖綆″畠騫朵笉鏄竴涓櫄鎷熸満銆傞€氳繃Cygwin瀹夎curl錛屽畠浼?xì)鑷姩鍦板畨瑁呮墍闇€鐨勫悇縐嶄緷璧栫▼搴忓拰搴撱€?/span>
鍦ㄧ瑪鑰呯殑鏈哄櫒涓婏紝閫氳繃鏌ョ湅curl鐨勭増鏈細(xì)鍑虹幇濡備笅淇℃伅錛?/span>
curl 7.50.2 (x86_64-unknown-cygwin) libcurl/7.50.2 OpenSSL/1.0.2h zlib/1.2.8 libidn/1.29 libpsl/0.14.0 (+libidn/1.29) libssh2/1.7.0 nghttp2/1.14.0
Protocols: dict file ftp ftps gopher http https imap imaps ldap ldaps pop3 pop3s rtsp scp sftp smb smbs smtp smtps telnet tftp
Features: Debug IDN IPv6 Largefile GSS-API Kerberos SPNEGO NTLM NTLM_WB SSL libz TLS-SRP HTTP2 UnixSockets Metalink PSL
鐢變笂鍙煡錛岀瑪鑰呬嬌鐢ㄧ殑curl鐗堟湰鏄?.50.2錛宯ghttp2鐗堟湰鏄?.14.0錛岃€孫penSSL鐗堟湰鏄?.0.2h銆?/span>Protocols: dict file ftp ftps gopher http https imap imaps ldap ldaps pop3 pop3s rtsp scp sftp smb smbs smtp smtps telnet tftp
Features: Debug IDN IPv6 Largefile GSS-API Kerberos SPNEGO NTLM NTLM_WB SSL libz TLS-SRP HTTP2 UnixSockets Metalink PSL
4. 絎竴嬈″皾璇?/span>
鍦ㄧ涓€嬈″皾璇曚腑錛屽彧闇€瑕佺畝鍗曞湴璁塊棶絎?鑺備腑閮ㄧ講鐨刉eb搴旂敤涓殑闈欐€佹枃鏈枃浠秈ndex錛屼互鎰熷彈涓媓2c錛屽畬鏁村懡浠ゅ涓嬶細(xì)
$ curl -v --http2 http://localhost:8080/index
鍦ㄨ緭鍑轟腑鍖呭惈鏈夊涓嬬殑鍐呭錛?/span>...
> GET /index HTTP/1.1
> Host: localhost:8080
> User-Agent: curl/7.50.2
> Accept: */*
> Connection: Upgrade, HTTP2-Settings
> Upgrade: h2c
> HTTP2-Settings: AAMAAABkAAQAAP__
>
...
< HTTP/1.1 101 Switching Protocols
* Received 101
* Using HTTP2, server supports multi-use
* Connection state changed (HTTP/2 confirmed)
...
< HTTP/2 200
< server: Jetty(9.3.11.v20160721)
< last-modified: Wed, 14 Sep 2016 12:52:32 GMT
< content-length: 11
< accept-ranges: bytes
<
...
HTTP/2 Test
">"鏄鎴風(fēng)鍙戦€佺殑璇鋒眰錛?<"鏄湇鍔″櫒绔彂閫佺殑鍝嶅簲錛岃€?*"鏄痗url瀵瑰綋鍓嶈繃紼嬬殑璇存槑銆?/span>緇撳悎鏈郴鍒?a href="http://www.aygfsteel.com/jiangshachina/archive/2016/09/19/431811.html">絎竴綃囨枃绔?/a>涓墍綆€榪扮殑HTTP 2鍗忚錛屽彲浠ユ湁浠ヤ笅鐨勫熀鏈悊瑙ｃ€?/span>> GET /index HTTP/1.1
> Host: localhost:8080
> User-Agent: curl/7.50.2
> Accept: */*
> Connection: Upgrade, HTTP2-Settings
> Upgrade: h2c
> HTTP2-Settings: AAMAAABkAAQAAP__
>
...
< HTTP/1.1 101 Switching Protocols
* Received 101
* Using HTTP2, server supports multi-use
* Connection state changed (HTTP/2 confirmed)
...
< HTTP/2 200
< server: Jetty(9.3.11.v20160721)
< last-modified: Wed, 14 Sep 2016 12:52:32 GMT
< content-length: 11
< accept-ranges: bytes
<
...
HTTP/2 Test
[1]瀹㈡埛绔彂璧蜂簡涓€涓狧TTP/1.1鐨勮姹傦紝鍏朵腑鎼哄甫鏈塙pgrade澶撮儴錛岃姹傛湇鍔″櫒绔崌綰у埌HTTP/2(h2c)銆?/span>
> GET /index HTTP/1.1
> Host: localhost:8080
> User-Agent: curl/7.50.2
> Accept: */*
> Connection: Upgrade, HTTP2-Settings
> Upgrade: h2c
> HTTP2-Settings: AAMAAABkAAQAAP__
>
[2]鏈嶅姟鍣ㄧ鍚屾剰鍗囩駭錛岃繑鍥炲搷搴?101 Switching Protocols"錛岀劧鍚庡鎴風(fēng)鏀跺埌浜?01鍝嶅簲錛孒TTP/2榪炴帴榪涜紜銆?/span>> Host: localhost:8080
> User-Agent: curl/7.50.2
> Accept: */*
> Connection: Upgrade, HTTP2-Settings
> Upgrade: h2c
> HTTP2-Settings: AAMAAABkAAQAAP__
>
< HTTP/1.1 101 Switching Protocols
* Received 101
* Using HTTP2, server supports multi-use
* Connection state changed (HTTP/2 confirmed)
[3]鏈嶅姟鍣ㄧ鍝嶅簲鏈€緇堢粨鏋溿€傜姸鎬佽涓嚭鐜扮殑HTTP鐗堟湰涓篐TTP/2錛岀姸鎬佷唬鐮佷負(fù)200錛屼笖鍚庨潰娌℃湁璺熺潃"OK"銆傛渶鍚庤緭鍑轟簡index鏂囦歡鐨勫唴瀹?HTTP/2 Test"銆?/span>* Received 101
* Using HTTP2, server supports multi-use
* Connection state changed (HTTP/2 confirmed)
< HTTP/2 200
< server: Jetty(9.3.11.v20160721)
< last-modified: Wed, 14 Sep 2016 12:52:32 GMT
< content-length: 11
< accept-ranges: bytes
<
...
HTTP/2 Test
< server: Jetty(9.3.11.v20160721)
< last-modified: Wed, 14 Sep 2016 12:52:32 GMT
< content-length: 11
< accept-ranges: bytes
<
...
HTTP/2 Test
5. 涓€涓眬闄?/span>
榪欐錛屽湪鍙戣搗鐨勮姹備腑鍖呭惈浣撻儴錛屽懡浠ゅ涓嬶細(xì)
$ curl -v --http2 -d "body" http://localhost:8080/index
鍦ㄨ緭鍑轟腑鍖呭惈鏈夊涓嬬殑鍐呭錛?/span>...
> POST /index HTTP/1.1
> Host: localhost:8080
> User-Agent: curl/7.50.2
> Accept: */*
> Connection: Upgrade, HTTP2-Settings
> Upgrade: h2c
> HTTP2-Settings: AAMAAABkAAQAAP__
> Content-Length: 4
> Content-Type: application/x-www-form-urlencoded
>
...
< HTTP/1.1 200 OK
< Last-Modified: Wed, 14 Sep 2016 12:52:32 GMT
< Accept-Ranges: bytes
< Content-Length: 11
...
HTTP/2 Test
鍜岀4鑺備腑鐨勮緭鍑鴻繘琛屾瘮杈冿紝浼?xì)鍙戠幇缂簽畱浜?101 Switching Protocols"閭ｄ竴孌碉紝鑰屼笖鏈€緇堝搷搴旂姸鎬佽涓嚭鐜扮殑HTTP鐗堟湰鏄疕TTP/1.1銆傝繖灝辮鏄庢湇鍔″櫒绔笉鍚屾剰鍗囩駭錛屽悗闈㈢戶緇嬌鐢℉TTP/1.1銆傚垰鍒氶儴緗茬殑Jetty鏈仛浠諱綍鏀瑰彉鎬庝箞浼?xì)绐佺劧涓嶆敮鎸丠TTP/2浜嗗憿錛熸垨鑰呰繖鏄痗url鐨勯棶棰橈紵鍏跺疄錛?/span>榪欐槸鍥犱負(fù)Jetty鏈嶅姟鍣ㄧ鍦ㄥ疄鐜癶2c鏃朵笉鏀寔璇鋒眰涓寘鍚綋閮ㄣ€傚彟澶栵紝Apache httpd涔熸湁鍚屾牱鐨勯棶棰樸€傚鏋滄槸浣跨敤h2錛屽垯娌℃湁榪欎釜闄愬埗銆傝繖鑳屽悗鐨勫師鍥犺秴鍑轟簡鏈枃鐨勮寖鐣達(dá)紝涓嶄綔琛ㄨ堪銆?/span>> POST /index HTTP/1.1
> Host: localhost:8080
> User-Agent: curl/7.50.2
> Accept: */*
> Connection: Upgrade, HTTP2-Settings
> Upgrade: h2c
> HTTP2-Settings: AAMAAABkAAQAAP__
> Content-Length: 4
> Content-Type: application/x-www-form-urlencoded
>
...
< HTTP/1.1 200 OK
< Last-Modified: Wed, 14 Sep 2016 12:52:32 GMT
< Accept-Ranges: bytes
< Content-Length: 11
...
HTTP/2 Test
6. 涓€涓狟ug
鍦ㄨ繖嬈″皾璇曚腑錛屾祴璇曚竴涓嬩袱绔100-continue鐨勬敮鎸併€傚鏋滆姹備腑浣跨敤浜嗗ご閮?Expect: 100-continue"錛岄偅涔堟甯稿湴璇ヨ姹傝鏈変綋閮ㄣ€備絾鐢變簬鍦ㄧ5鑺備腑浠嬬粛鐨勯棶棰橈紝姝ゆ椂涓嶈兘鍐嶄嬌鐢╤2c錛岃€屽彧鑳戒嬌鐢╤2銆傚彟澶栵紝榪欐涓嶈闂潤鎬佹枃浠訛紝鑰屾槸璁塊棶Servlet(姝ゅ涓?test)銆傚畬鏁村懡浠ゅ涓嬶細(xì)
$ curl -vk --http2 -H "Expect: 100-continue" -d "body" https://localhost:8443/test
鍦ㄨ緭鍑虹殑鏈€鍚庡嚭鐜頒簡濡備笅淇℃伅錛?/span>curl: (92) HTTP/2 stream 1 was not closed cleanly: CANCEL (err 8)
榪欏叾瀹炴槸Jetty鐨勪竴涓?a >Bug錛屾鍦ㄥ紑鍙戜腑鐨?.3.12宸茬粡淇浜嗗畠銆?/span>7. 灝忕粨
HTTP/2渚濈劧綆楁槸鏂版疆鐨勬妧鏈紝瀵瑰悇瀹剁殑瀹炵幇錛屾棤璁烘槸鏈嶅姟鍣ㄧ錛屽鎴風(fēng)錛岃繕鏄垎鏋愬伐鍏鳳紝閮借鎸佹湁涓€浠芥€€鐤戞€佸害銆傝繖浜涘疄鐜板拰宸ュ叿閮芥槸紼嬪簭錛岄兘鏈夊彲鑳藉瓨鍦╞ug銆傝€屼笖鍗忚瀵硅澶氱粏鑺傛病鏈変綔鍑鴻瀹氾紝鍚勫閮戒細(xì)鍙戞尌鑷繁鐨勬兂鍍忓姏銆傛瘮濡傦紝Apache httpd鍜孞etty鍦ㄥ疄鐜版湇鍔″櫒绔帹閫佹椂錛屽叾鏂瑰紡灝變笉灝界浉鍚屻€?br /> 鍦ㄥ紑鍙戣嚜宸辯殑HTTP/2瀹炵幇鎴栧簲鐢ㄧ殑鏃跺€欙紝闇€瑕佸悓鏃朵嬌鐢ㄥ凡鏈夌殑涓嶅悓鏈嶅姟鍣ㄧ鍜屽鎴風(fēng)鍘婚儴緗插濂楁祴璇曠幆澧冭繘琛屽姣斿垎鏋愩€?br />
John Jiang 2016-09-20 16:42 鍙戣〃璇勮
]]>鎺㈢儲(chǔ)HTTP/2: HTTP/2鍗忚綆€榪?/span>
HTTP/2鐨勫崗璁寘鍚潃涓や釜RFC錛欻ypertext Transfer Protocol Version 2 (RFC7540)錛屽嵆HTTP/2錛汬PACK: Header Compression for HTTP/2 (RFC7541)錛屽嵆HPACK銆俁FC7540鎻忚堪浜咹TTP/2鐨勮涔夛紝RFC7541鍒欐弿榪頒簡鐢ㄤ簬HTTP/2鐨勫ご閮ㄥ帇緙╃殑鏍煎紡銆傛湰鏂囧彧娑夊強(qiáng)HTTP/2鍗忚錛屾湰緋誨垪鐨勫悗緇枃绔犲皢浼?xì)娑夊強(qiáng)HPACK鍗忚銆?2016.10.13鏈€鍚庢洿鏂?1. HTTP/2瑕佽В鍐崇殑闂
HTTP/1.0鍙厑璁稿湪涓€涓猅CP榪炴帴涓嚭鐜頒竴涓姹傘€傚悗鏉ョ殑HTTP/1.1铏界劧寮曞叆浜嗚姹傛祦姘寸嚎錛屼互鍏佽鍦ㄤ竴涓繛鎺ヤ腑鍙戦€佸涓姹傦紝浣嗚繖鍙槸閮ㄥ垎鍦拌В鍐充簡璇鋒眰騫跺彂鐨勯棶棰樸€傛湇鍔″櫒绔湪榪斿洖鍝嶅簲鏃訛紝榪樻槸蹇呴』瑕佹寜鐓у畠鎺ユ敹鍒扮殑璇鋒眰鐨勯『搴忚繘琛岃繑鍥炪€傚鏋滄帓鍦ㄥ墠闈㈢殑鍝嶅簲瑕佹秷鑰楄緝闀跨殑鏃墮棿錛岄偅渚濈劧浼?xì)瀵瑰悗闈㈢殑鍝嶅簲鐨勯€犳垚闃誨錛屼害鍗崇嚎澶撮樆濉?Head-of-line blocking)銆傛墍浠ワ紝瀹㈡埛绔繀欏昏浣跨敤澶氭潯榪炴帴鍘誨彂璧峰涓殑璇鋒眰浠ュ疄鐜板茍鍙戯紝騫惰繘鑰屽噺灝忓歡榪熴€傛洿澶х殑騫跺彂浼?xì)澧炲ぇ鏈嶅姟鍣ㄧ殑璐熻浇锛屼篃浼?xì)鍗犵敤鏇村ぇ鐨勭綉緇滃甫瀹姐€傚彟澶栵紝澶撮儴閫氬父浼?xì)鍖呭惈鏈夊ぇ閲忕殑淇℃伅锛屽cookie錛岃€岃繖涔熶細(xì)澧炲姞緗戠粶浼犺緭鐨勫紑閿€銆?/span>
HTTP/2鍏佽鍦ㄥ悓涓€涓猅CP榪炴帴涓氦閿欏湴鍑虹幇澶氫釜璇鋒眰涓庡搷搴旓紝浜﹀嵆澶氬伐(Multiplex)銆傚悓鏃訛紝瀹冧嬌鐢ㄤ簡涓€涓珮鏁堢殑緙栫爜鏂規(guī)硶瀵瑰ご閮ㄨ繘琛屽帇緙┿€侶TTP/2榪樺厑璁稿璇鋒眰榪涜浼樺厛綰ф帓搴忥紝浠ヤ究璁╂洿涓洪噸瑕佺殑璇鋒眰寰椾互鏇村揩鐨勫畬鎴愶紝榪欎細(xì)榪涗竴姝ユ彁楂樻€ц兘銆侶TTP/2榪樻敼鍙樹簡鏈嶅姟鍣ㄧ鍙兘琚姩鍦板悜瀹㈡埛绔繑鍥炲搷搴旂殑瀹氬紡錛屽厑璁告湇鍔″櫒绔富鍔ㄥ湴鍚戝鎴風(fēng)鎺ㄩ€佹暟鎹紝榪欏氨鍙互鍑忓皯瀹㈡埛绔彂璧瘋姹傜殑鏁伴噺銆?/span>
鎬諱箣錛孒TTP/2涓昏鏄В鍐蟲€ц兘闂銆?/span>
2. 鍙戣搗HTTP/2
HTTP/2浼?xì)鋴社敤涓嶩TTP/1鐩稿悓鐨刄RI scheme錛屽嵆http鍜宧ttps銆傝€屼笖瀹炵幇HTTP/2鐨勬湇鍔″櫒绔篃涓嶄細(xì)浣跨敤涓嶅悓鐨勭鍙ｅ幓鍒嗗埆鏀寔HTTP/1鍜孒TTP/2銆傝繖鏍鋒湁鍒╀簬騫蟲粦鍦頒粠HTTP/1鍗囩駭鍒癏TTP/2銆傛瘯绔熺洰鍓嶅凡閮ㄧ講鐨勭粷澶ч儴鍒嗙綉緇滄湇鍔￠兘鍙敮鎸丠TTP/1錛屽綋鏈潵瀹冧滑鍗囩駭鍒癏TTP/2鏃訛紝濡傛灉鎹㈢敤浜嗕笉鍚孶RI scheme鎴栫鍙ｏ紝閭ｄ箞鑲畾浼?xì)瀵瑰鎴风漶旂敓鏋佸ぇ鐨勫奖鍝嶃€備絾鏄疕TTP/2鍗忚涓鴻繍琛屽湪http鍜宧ttps涓婄殑HTTP/2鍒嗗埆瀹氫箟浜嗕袱涓笉鍚岀殑鏍囪瘑絎︼細(xì)h2c鍜宧2銆俬2c涓殑"c"鎸囩殑鏄痗leartext錛屽嵆鏄庢枃銆傛湰鏂囧悗闈細(xì)浣跨敤h2c鎸囦唬榪愯鍦╤ttp2涓?鐩存帴浣跨敤TCP)鐨凥TTP/2錛岃€岀敤h2鎸囦唬榪愯鍦╤ttps涓?浣跨敤TLS)鐨凥TTP/2銆?/span>
閭ｄ箞錛屾敮鎸丠TTP/2鐨勫鎴風(fēng)濡備綍鐭ラ亾瀹冩墍榪炴帴鐨勬湇鍔″櫒绔槸鍚︿篃鏀寔HTTP/2鍛紵
瀵逛簬h2c錛屾敮鎸丠TTP/2鐨勫鎴風(fēng)鍙互鍦ㄥ彂璧風(fēng)殑璇鋒眰涓嬌鐢℉TTP/1.1鐨刄pgrade澶撮儴鍘誨皾璇曡姹傛湇鍔″櫒鍗囩駭鍒癏TTP/2銆傝璇鋒眰鐨勬牸寮忓涓嬶細(xì)
GET / HTTP/1.1
Host: server.example.com
Connection: Upgrade, HTTP2-Settings
Upgrade: h2c
HTTP2-Settings: <base64url encoding of HTTP/2 SETTINGS payload>
HTTP2-Settings鏄竴涓粡鐢盉ASE64緙栫爜榪囩殑瀛楃涓詫紝鍏跺師濮嬪唴瀹規(guī)槸瀹㈡埛绔皢瑕佸彂閫佺殑SETTINGS甯х殑杞借嵎錛屽嵆涓€浜涢厤緗弬鏁般€?/span>
濡傛灉鏈嶅姟鍣ㄧ鏀寔HTTP/2錛屽畠?yōu)鍝嶅?101 Switching Protocols"錛岃〃紺哄彲浠ヨ繘琛屽崌綰с€傝鍝嶅簲鐨勬牸寮忓涓嬶細(xì)
HTTP/1.1 101 Switching Protocols
Connection: Upgrade
Upgrade: h2c
濡傛灉鏈嶅姟鍣ㄧ涓嶆敮鎸丠TTP/2錛屽垯浼?xì)蹇界暐Upgrade璇鋒眰澶撮儴錛屽悗緇緷鐒朵嬌鐢℉TTP/1.1銆?/span>
瀵逛簬h2錛屼細(xì)浣跨敤鍒板崗璁甌ransport Layer Security (TLS) Application-Layer Protocol Negotiation Extension (RFC7301)錛屽嵆TLS-ALPN銆傝鍗忚鍏佽瀹㈡埛绔拰鏈嶅姟鍣ㄧ灝變嬌鐢ㄤ綍縐嶇増鏈殑HTTP榪涜鍗忓晢銆傚鏋淭LS-ALPN鍦ㄧ幇瀹炰腑榪愯鑹ソ鐨勮瘽錛屼篃璁告煇澶╄繕浼?xì)鋴社敤璇ユ栆?guī)硶鍘誨崗鍟嗕嬌鐢ㄥ埆鐨勫崗璁€?/span>
褰撳鎴風(fēng)涓庢湇鍔″櫒绔兘鍚屾剰浣跨敤HTTP/2鏃訛紝鍙屾柟閮介渶瑕佸悇鑷彂鍑轟竴涓繛鎺ュ簭璦€(Connection Preface)浠ヨ繘琛屾渶鍚庣殑紜銆?/span>
瀹㈡埛绔湪鎺ユ敹鍒版湇鍔″櫒绔殑"101 Switching Protocols"鍝嶅簲(閽堝h2c)鎴朤LS榪炴帴鐨勭涓€涓簲鐢ㄦ暟鎹瓧鑺?閽堝h2)涔嬪悗浼?xì)绔嬪崨_彂鍑鴻繛鎺ュ簭璦€銆傝搴忚█鐨勫紑澶存槸"PRI * HTTP/2.0\r\n\r\nSM\r\n\r\n"(鍏跺崄鍏繘鍒跺艦寮忎負(fù)"0x505249202a20485454502f322e300d0a0d0a534d0d0a0d0a")(1)錛屽悗闈㈠繀欏誨啀璺熶竴涓猄ETTINGS甯э紝鍝€曡繖涓撫鏄┖鐨勩€?/span>
鏈嶅姟鍣ㄧ鐨勮繛鎺ュ簭璦€鍒欑敱涓€涓猄ETTINGS甯ф瀯鎴愶紝璇ュ撫蹇呴』鏄湇鍔″櫒绔湪HTTP/2榪炴帴涓彂閫佺殑絎竴涓撫銆傝繖涓猄ETTINGS甯у彲浠ヤ負(fù)絀猴紝涔熷彲浠ュ寘鍚竴浜涘笇鏈涘鎴風(fēng)濡備綍涓庤嚜宸辮繘琛岄€氫俊鐨勫繀瑕侀厤緗俊鎭€?/span>
3. 甯?Frame)
HTTP/2娑堟伅浣跨敤浜岃繘鍒舵牸寮?瀹為檯緙栫爜鏃朵嬌鐢ㄥ崄鍏繘鍒朵功鍐?錛岀浉姣斾簬鏂囨湰鏍煎紡錛岃繖鏍峰彲浠ユ彁楂樻秷鎭鐞嗙殑鏁堢巼銆侶TTP/2娑堟伅鐨勬渶灝忓崟鍏冧負(fù)甯э紝瀹冪敱澶撮儴涓庤澆鑽?Payload)緇勬垚銆傛瘡涓撫鐨勯暱搴﹀繀欏繪槸涓€涓垨澶氫釜8姣旂壒浣嶅瓧鑺?octet錛屼笅鏂囧皢鍏剁畝鍐欎負(fù)"瀛楄妭")銆?/span>
甯уご閮ㄤ緷嬈″寘鍚湁濡備笅鐨?涓瓧孌碉細(xì)
闀垮害(Length)錛氳瀛楁鍗犵敤24涓瘮鐗逛綅錛屼唬琛ㄥ撫杞借嵎鐨勯暱搴︺€傝闀垮害鏄竴涓?4浣嶇殑鏃犵鍙鋒暣鏁般€?/span>
綾誨瀷(Type)錛氳瀛楁鍗犵敤8涓瘮鐗逛綅錛屼唬琛ㄥ撫鐨勭被鍨嬨€?/span>
鏍囧織(Flags)錛氳瀛楁鍗犵敤8涓瘮鐗逛綅錛屼唬琛ㄥ撫鎵€瀹氫箟鐨勪竴涓垨澶氫釜鏍囧織銆傚茍涓嶆槸鎵€鏈夌殑甯ч兘瀹氫箟浜嗘爣蹇椼€?/span>
淇濈暀浣?R)錛氳瀛楁鍗犵敤1涓瘮鐗逛綅錛屽叾璇箟灝氭湭琚畾涔夈€傚湪璇誨彇甯ф椂錛岃浣嶉渶瑕佽蹇界暐錛涗絾鍦ㄥ彂閫佸撫鏃訛紝璇ヤ綅闇€瑕佷繚鎸佷負(fù)0(0x0)銆?/span>
嫻佹爣璇嗙(Stream Identifier)錛氳瀛楁鍗犵敤31涓瘮鐗逛綅錛屼唬琛ㄨ甯ф墍鍦ㄦ祦鐨勬爣璇嗙銆?/span>
鍦ㄥご閮ㄤ箣鍚庯紝绱ф帴鐫€鐨勫氨鏄澆鑽楓€傝澆鑽風(fēng)殑緇撴瀯涓庡唴瀹瑰畬鍏ㄧ敱甯х殑綾誨瀷鍐沖畾錛屽畠鐨勯暱搴︿篃鏄笉瀹氱殑銆?br />
HTTP/2瀹氫箟浜嗗涓?0縐嶄笉鍚岀被鍨嬬殑甯с€?/span>
DATA錛氱敤浜庢惡甯︿竴緇勯暱搴︿笉瀹氱殑瀛楄妭銆備竴涓垨澶氫釜DATA鍙綔涓鴻姹傛垨鍝嶅簲鐨勮澆鑽楓€?/span>
HEADERS錛氱敤浜庡紑鍚竴涓祦錛屽茍鍙惡甯︿竴涓ご閮ㄥ潡鐗囨柇銆傚ご閮ㄥ潡鎸囩敱涓€涓狧EADERS/PUSH_PROMISE甯у拰绱ч殢瀹冪殑闆跺埌澶氫釜CONTINUATION甯х粍鎴愮殑闆嗗悎錛屽洜涓哄彧鏈夊畠浠墠鍙兘鎼哄甫澶撮儴淇℃伅銆傝繖涓泦鍚堝彲琚垎鍓叉垚涓€涓垨涓€緇勫瓧鑺傦紝榪欐牱鐨勫瓧鑺傝縐頒負(fù)澶撮儴鍧楃墖鏂€傚ご閮ㄥ潡涓悇涓壒瀹氱被鍨嬬殑甯у繀欏葷揣绱х浉閭伙紝涓嶈兘鍑虹幇鍏跺畠綾誨瀷鐨勫撫銆?/span>
PRIORITY錛氱敤浜庢寚瀹氬彂閫佺寤鴻鐨勬祦浼樺厛綰с€?/span>
RST_STREAM錛氱敤浜庣珛鍗崇粓姝㈡祦銆傚綋甯屾湜鍙栨秷涓€涓祦鎴栧彂鐢熼敊璇椂錛屽氨鍙彂閫丷ST_STREAM甯с€?/span>
SETTINGS錛氱敤浜庢惡甯﹀彲浠ュ獎(jiǎng)鍝嶄袱绔箣闂撮€氫俊鏂瑰紡鐨勯厤緗弬鏁般€係ETTINGS甯у畾涔変簡涓€涓狝CK鏍囧織錛岀敤浜庢寚紺鴻甯ф墍璁劇疆鐨勫弬鏁版槸鍚﹀凡琚帴鏀剁鑾風(fēng)煡銆傚綋鏀跺埌涓€涓猄ETTINGS涓斿叾涓殑ACK鏍囧織涓?鏃訛紝鎺ユ敹绔繀欏誨敖鍙兘蹇殑搴旂敤鍏朵腑宸茶鏇存柊鐨勫弬鏁般€?/span>
PUSH_PROMISE錛氱敤浜庡悜鎺ユ敹绔€氱煡鍙戦€佺灝嗚鍒涘緩鐨勬祦銆傚綋鎺ユ敹绔帴鏀跺埌璇ュ撫鏃訛紝鏂扮殑嫻佸皻鏈鍙戦€佺鍒涘緩錛屼絾鍙戦€佺鎵胯浼?xì)鍒涘圾櫙箒銆傝甯х敤浜庡疄鐜癏TTP/2鐨勯噸瑕佺壒鎬?鏈嶅姟鍣ㄧ鎺ㄩ€?Server Push)"銆?/span>
PING錛氱敤浜庢祴閲忓彂閫佺涓庢帴鏀剁涔嬮棿鐨勬渶灝忓線榪旀椂闂淬€傝繖涓庝嬌鐢ㄤ紬鎵€鍛ㄧ煡鐨刾ing鍛戒護(hù)鐨勭洰鐨勭浉浼鹼紝鏄負(fù)浜嗘祴璇曟煇涓┖闂茬殑榪炴帴鏄惁榪樺彲鐢ㄣ€?/span>
GOAWAY錛氱敤浜庡彂璧峰榪炴帴鐨勫叧闂紝鎴栬Е鍙戜弗閲嶇殑閿欒鏉′歡銆傝甯у厑璁鎬竴绔紝鍦ㄥ畬鎴愬涔嬪墠宸插垱寤虹殑嫻佺殑澶勭悊鐨勫悓鏃訛紝浼橀泤鍦板仠姝㈡帴鏀舵柊鐨勬祦銆備竴绔湪鍒涘緩鏂扮殑嫻侊紝鍙︿竴绔湪鍙戦€丟OAWAY錛岃繖涓よ€呬箣闂村ぉ鐒跺瓨鍦ㄧ潃绔炰簤鍏崇郴銆備負(fù)浜嗗氨瀵硅繖縐嶆儏鍐碉紝鍙戦€佺鍦ㄥ彂閫丟OAWAY鏃朵細(xì)璁╁畠鎼哄甫涓?璇ュ彂閫佺鎵€鐭ユ檽鐨?鎺ユ敹绔渶鍚庡垱寤虹殑嫻佺殑鏍囪瘑絎︼紝褰撹GOAWAY琚彂閫佷箣鍚庯紝鍙戦€佺灝嗕細(xì)蹇借鐢辨帴鏀剁鍒涘緩鐨勪換浣曚竴涓爣璇嗙姣旇鏍囪瘑絎﹀ぇ鐨勬祦銆?/span>
WINDOW_UPDATE錛氱敤浜庢祦閲忔帶鍒躲€傝甯х殑杞借嵎鐢變竴涓崟姣旂壒淇濈暀浣嶅拰涓€涓?1姣旂壒浣嶇殑鏃犵鍙鋒暣鏁扮粍鎴愩€傝鏁存暟鍚戣甯х殑鎺ユ敹绔寚紺轟簡鍏跺悜褰撳墠嫻侀噺鎺у埗紿楀彛鎵€鑳藉鍔犱紶杈撻噺鐨勫€箋€?/span>
CONTINUATION錛氱敤浜庣戶緇彂閫佸ご閮ㄥ潡鐗囨柇銆傚彧瑕佸悓涓€涓祦涓墠闈㈢殑甯ф槸HEADERS錛孭USH_PROMISE鎴朇ONTINUATION錛屽茍涓旇甯ф病鏈夎緗瓻ND_HEADERS鏍囧織錛岄偅涔堝彲鏃犻檺閲忓湴鍙戦€丆ONTINUATION甯с€?/span>
閮ㄥ垎甯э紝DATA錛孒EADERS鍜孭USH_PROMISE錛岀殑杞借嵎涓彲鑳藉寘鍚～鐧?Padding)銆傚～鐧藉湪涓氬姟涓婃病鏈夊疄闄呯殑鐢ㄥ錛屽畠鐨勫嚭鐜版槸鍩轟簬瀹夊叏鐩殑銆傛瘮濡傦紝鍙互鐢ㄥ畠鏉ユ壈涔卞疄闄呮暟鎹殑闀垮害錛屼互鍑忚交鐗瑰畾鐨凥TTP鏀誨嚮銆?br />
鍙戦€佺鍙戦€佺殑甯х殑鏈€澶ч暱搴﹁灝婇噸鎺ユ敹绔瀹氱殑SETTINGS_MAX_FRAME_SIZE鐨勫€箋€備絾璇ュ€肩殑鑼冨洿瑕佷粙浜?^14鑷?^24-1涓瓧鑺備箣闂淬€?/span>
4. 嫻?Stream)
嫻佹槸鐢ㄤ簬鍦ㄥ鎴風(fēng)涓庢湇鍔″櫒绔箣闂磋繘琛屽撫浼犻€佺殑閫氶亾錛屽悓涓€涓猅CP榪炴帴涓彲浠ュ悓鏃舵湁澶氫釜嫻侊紝濡備笅鍥炬墍紺猴紝
┌────────┐ Connection ┌────────┐
│ │ ============================= │ │
│ │ --------------------- <-- Stream │
│ │ ┌─────┐┌─────────┐┌─┐ │ │
│ │ └─────┘└─────────┘└─┘ <-- Frame │
│ │ --------------------- │ │
│ Client │ │ Server │
│ │ ---------- │ │
│ │ ┌──┐┌────┐ │ │
│ │ └──┘└────┘ │ │
│ │ ---------- │ │
│ │ ============================= │ │
└────────┘ └────────┘
│ │ ============================= │ │
│ │ --------------------- <-- Stream │
│ │ ┌─────┐┌─────────┐┌─┐ │ │
│ │ └─────┘└─────────┘└─┘ <-- Frame │
│ │ --------------------- │ │
│ Client │ │ Server │
│ │ ---------- │ │
│ │ ┌──┐┌────┐ │ │
│ │ └──┘└────┘ │ │
│ │ ---------- │ │
│ │ ============================= │ │
└────────┘ └────────┘
浣跨敤嫻佹潵瀹炵幇澶氬伐灝變細(xì)寮曡搗瀵筎CP榪炴帴浣跨敤鐨勭珵浜夛紝榪欎細(xì)閫犳垚嫻佺殑闃誨銆傚熀浜庡撫WINDOW_UPDATE鐨勬祦閲忔帶鍒舵柟妗堝彲浠ョ‘淇濈浉鍚岃繛鎺ヤ腑鐨勬祦鐩鎬簰涔嬮棿涓嶄細(xì)浜х敓鐮村潖鎬у共鎵般€傛祦閲忔帶鍒跺彲浠ヤ綔鐢ㄤ簬涓や釜灞傞潰錛屽嵆鍗曚釜嫻佹垨鏁翠釜榪炴帴銆傚彧鏈夊撫DATA闇€瑕侀伒瀹堟祦閲忔帶鍒訛紝鎵€鏈夊叾瀹冪殑甯ф墍鏈夋秷鑰楃殑絀洪棿鍧囦笉浼?xì)鍗犵敤娴侀噺鎺у埗绐楀彛銆侶TTP/2鍗忚鍙槸瀹氫箟浜哤INDOW_UPDATE甯х殑緇撴瀯鍜岃涔夛紝鍗忚鐨勫疄鐜板彲浠ラ€夋嫨浠諱綍閫傜敤鑷繁鐨勬祦閲忔帶鍒剁畻娉曘€?/span>
嫻佸彲浠ユ湁浼樺厛綰с€傚鎴風(fēng)鍦ㄥ垱寤轟竴涓柊鐨勬祦鏃訛紝鍙湪HEADERS涓寚瀹氫紭鍏堢駭鏉冮噸銆傚湪鍚庣畫浠諱綍鏃墮棿錛岄€氳繃PRIORITY鍙互鏀瑰彉?gòu)箒鐨勪紭鍏埦Uф潈閲嶃€傚湪騫跺彂鑳藉姏鏈夐檺鐨勬儏鍐典笅錛岄珮鏉冮噸嫻佺殑甯т細(xì)琚紭鍏堜紶閫併€傛潈閲嶇殑鍊煎繀欏諱粙浜?鑷?56涔嬮棿錛岄粯璁ゆ潈閲嶄負(fù)16銆?/span>嫻佷笌嫻佷箣闂磋繕鍙互鏈変緷璧栧叧緋伙紝榪欑鍏崇郴浼?xì)缁勬垚涓€媯典緷璧栧叧緋繪爲(wèi)銆備竴涓祦鑳藉鎸囧畾鑷繁鎴愪負(fù)鍙︿竴涓祦鐨勫瓙嫻併€傝繖涓€榪囩▼錛屽彲浠ユ槸闈炴帓浠栫殑錛屼篃鍙互鏄帓浠栫殑銆傞潪鎺掍粬鎬т緷璧栵紝鏄寚涓€涓祦鍦ㄥ皢鑷繁鍙樻垚鍙︿竴涓祦鐨勫瓙嫻佺殑榪囩▼涓紝鍏佽鍙︿竴涓祦榪樻湁鍒殑瀛愭祦錛屽嵆鍏佽鏈夎嚜宸辯殑鍏勫紵嫻佸瓨鍦ㄣ€傛帓浠栨€т緷璧栵紝鎸囧湪鍓嶈堪榪囩▼涓紝涓嶅厑璁稿彟涓€涓祦榪樻湁鍒殑瀛愭祦銆傚鏋滃彟涓€涓祦宸茬粡鏈夊瓙嫻佷簡錛岄偅涔堣嫻佷細(xì)鎶婃墍鏈夋綔鍦ㄧ殑鍏勫紵嫻佸厛鍙樻垚鑷繁鐨勫瓙嫻侊紝鐒跺悗鍐嶄嬌鑷繁鎴愪負(fù)鍙︿竴涓祦鐨勫敮涓€瀛愭祦銆傚叾瀹烇紝鎺掍粬鎬т緷璧栫殑浣滅敤灝辨槸涓轟簡鑳藉鎵撶牬宸叉湁鐨勫叧緋繪爲(wèi)錛屽湪鏃㈡垚鐨勭埗瀛愯妭鐐逛腑鎻掑叆鏂扮殑鑺傜偣銆傚惁鍒欙紝鍙兘涓哄凡鏈夎妭鐐規(guī)坊鍔犲瓙鑺傜偣錛岄偅涔堝叧緋繪爲(wèi)灝嗕笉鍙兘榪涜閲嶆瀯銆傛墍鏈夌殑嫻佸湪琚垱寤烘椂錛岄粯璁ゆ垚涓烘爣璇嗙涓?x0鐨勬祦鐨勫瓙嫻併€傚湪"鏈嶅姟鍣ㄧ鎺ㄩ€?涓敓鎴愮殑"鎺ㄩ€?嫻佸皢鑷姩鍦版垚涓虹敓鎴愯鎺ㄩ€佹祦鐨勬祦鐨勫瓙嫻侊紝鍏墮粯璁ゆ潈閲嶄篃涓?6銆?/span>
5. 娑堟伅浜ゆ崲
5.1 璇鋒眰/鍝嶅簲浜ゆ崲
HTTP/2娌胯浜咹TTP/1鐨勮涔夛紝鍗蟲墍鏈夌殑璇鋒眰涓庡搷搴旇涔夊潎寰楀埌浜嗕繚鐣欙紝灝界浼犻€掕繖浜涜涔夌殑璇硶宸茬粡鏀瑰彉浜嗐€?/span>
涓€涓狧TTP/2娑堟伅鐢卞涓嬪嚑涓儴鍒嗙粍鎴愶細(xì)
[1]浠呭浜庡搷搴旀秷鎭紝鍙互鍖呭惈涓€涓惡甯︽湁1xx鍝嶅簲澶撮儴鐨勫ご閮ㄥ潡銆傝澶撮儴鍧楃敱涓€涓狧EADERS甯у拰绱ч殢瀹冪殑闆跺埌澶氫釜CONTINUATION甯х粍鎴愩€?/span>
[2]涓€涓ご閮ㄥ潡銆傝澶撮儴鍧楃敱涓€涓狧EADERS甯у拰绱ч殢瀹冪殑闆跺埌澶氫釜CONTINUATION甯х粍鎴愩€?/span>
[3]闆跺埌澶氫釜鎼哄甫鏈変綋閮?Body)娑堟伅鐨凞ATA甯с€侶TTP/1涓嬌鐢ㄧ殑"鍒嗗潡(chunked)"浣撻儴灝嗕笉閫傜敤浜嶩TTP/2銆傚洜涓轟竴涓綋閮ㄥ彲鐢卞涓狣ATA甯х粍鎴愶紝鎵€浠TTP/2鐨勪綋閮ㄥぉ鐒跺氨鏄彲鍒嗗潡鐨勩€?/span>
[4]涓€涓彲鑳藉瓨鍦ㄧ殑鍖呭惈鐫€灝鵑儴娑堟伅鐨勫ご閮ㄥ潡銆傝澶撮儴鍧楃敱涓€涓狧EADERS甯у拰绱ч殢瀹冪殑闆跺埌澶氫釜CONTINUATION甯х粍鎴愩€?br />
HTTP/2浠嶇劧娌跨敤HTTP/1涓殑澶撮儴瀛楁錛屼絾瀛楁鍚嶇О涓殑瀛楁瘝蹇呴』鍏ㄩ儴涓哄皬鍐欍€傚彟澶栵紝榪樺皢HTTP/1娑堟伅寮€濮嬭(璇鋒眰涓殑璇鋒眰琛?/a>涓庡搷搴斾腑鐨?a >鐘舵€佽)涓殑娑堟伅錛屽垎瑙ｆ垚浜嗚嫢騫蹭吉澶撮儴瀛楁錛屾綾誨瓧孌靛潎浠ュ啋鍙?:)寮€澶淬€?/span>
HTTP/1璇鋒眰琛屾牸寮忎負(fù)"method request-target HTTP-version"錛屽搴旂殑HTTP/2浼ご閮ㄥ瓧孌墊湁:method=method鍜?path=request-target錛屼絾HTTP-version鏃犲搴斿瓧孌碉紝榛樿涓篐TTP/2銆?/span>
HTTP/1鐘舵€佽鏍煎紡涓?HTTP-version status-code reason-phrase"錛屽搴旂殑HTTP/2浼ご閮ㄥ瓧孌墊湁:status=status-code銆備絾HTTP-version鏃犲搴斿瓧孌碉紝榛樿涓篐TTP/2錛況eason-phrase涔熸棤瀵瑰簲瀛楁錛屽洜涓哄彲浠ラ€氳繃鐘舵€佷唬鐮佹煡鎵懼埌鍏跺搴旂殑reason-phrase銆侶TTP/2鍗忚鏄湪灝介噺鍑忓皯鍐椾綑娑堟伅銆?/span>
HTTP/2鍗忚榪樹負(fù)璇鋒眰澶撮儴瀹氫箟浜嗗彟澶栦袱涓吉瀛楁錛?/span>
:scheme錛歎RI涓殑scheme閮ㄥ垎銆傚畠鍙互涓嶄粎浠呮槸http鎴杊ttps錛屽洜涓烘湁鏃跺€欏彲鑳戒細(xì)涓庨潪HTTP鏈嶅姟榪涜浜や簰銆?/span>
:authority錛歎RI涓殑鎺堟潈閮ㄥ垎銆傚嵆錛宻cheme://user:password@host:port/path?query#fragment涓殑"user:password@host:port"銆?/span>
HTTP/2鍗忚8.1.3鑺備腑緇欏嚭涓€浜涚畝鍗曠ず渚嬶紝灞曠ず浜嗗浣曞皢HTTP/1娑堟伅瀵瑰簲鍒癏TTP/2娑堟伅銆?/span>
5.2 鏈嶅姟鍣ㄧ鎺ㄩ€?/span>
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(1)"PRI * HTTP/2.0\r\n\r\nSM\r\n\r\n"涓殑"PRI"涓?SM"鍚堣搗鏉ュ氨鏄?RRISM(媯遍暅)"銆傚懙鍛碉紝HTTPbis宸ヤ綔緇勮繖鏄兂琛ㄨ揪浠€涔堟剰鎬濆憿 ;-)
(2)鏈郴鍒楃殑鍚庣畫鏂囩珷瑙ｈ浜嗘祦鐨勭姸鎬併€?br />
John Jiang 2016-09-19 11:36 鍙戣〃璇勮
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