Is is written in NodeJS,using express.js for MVC framework,and using MySQL for storage and Redis for caching.
A demo online: http://fnil.me/
The project is at https://github.com/killme2008/node-shorten
Feel free to modify and use it.Have fun.
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鎴戜滑宸茬粡寮濮嬪湪浜у搧浣跨敤zookeeper浜?jiǎn)锛岄偅涔埦l存姢宸ュ叿涔熷繀鐒墮渶瑕侊紝鎵璋撳叺椹湭鍔紝綺崏鍏堣銆傝鍚屼簨甯繖鐪嬭繃鍑犱釜寮婧愰」鐩悗錛屽茍娌℃湁鐗瑰埆璁╀漢婊℃剰鐨勩?br /> 鎴戞兂瑕佺殑鍔熻兘姣旇緝綆鍗曘傞鍏堬紝甯屾湜鑳藉皢zookeeper闆嗙兢鐨勬暟鎹睍紺轟負(fù)鏍?wèi)迮灳l撴瀯錛岃窡zookeeper妯″瀷淇濇寔涓鑷淬傚彲浠ラ愭灞曞紑姣忓眰鐨勮妭鐐癸紝姣忔灞曞紑閮芥槸寤惰繜鍔犺澆浠巣k閲屽彇鏁版嵁錛岃繖鏍蜂笉浼?xì)瀵箊k閫犳垚澶ぇ鍘嬪姏銆傚叾嬈★紝闄や簡(jiǎn)灞曠ず鏍?wèi)迮灳l撴瀯澶栵紝鎴戣繕甯屾湜瀹冭兘灞曠ず姣忎釜path鐨勫睘鎬у拰鏁版嵁錛屾洿榪涗竴姝ワ紝濡傛灉鏁版嵁鏄枃鏈殑錛屾垜甯屾湜瀹冨彲緙栬緫銆傚綋鐒?dòng)灱屽洜湄?fù)緙栬緫鍔熻兘鏄瘮杈冨嵄闄╃殑琛屼負(fù)錛屾垜榪樺笇鏈涜繖涓鐞嗗伐鍏鋒湁涓畝鍗曠殑鎺堟潈楠岃瘉鏈哄埗銆?br />
鏈緇堬紝鎴戣嚜宸卞啓浜?jiǎn)杩欎箞涓笢瑗垮Q屽彇鍚嶄負(fù)node-zk-browser錛屽熀浜巒ode.js鐨?a >express.js妗嗘灦鍜?a >node-zookeeper瀹㈡埛绔疄鐜扮殑銆傛垜灝嗗畠鏀懼湪浜?jiǎn)github涓?br />
https://github.com/killme2008/node-zk-browser
浣犲彲浠ヨ嚜宸辨惌寤鴻繖涓皬app錛?npm鍑犱箮鑳藉府浣犳悶瀹氬ぇ閮ㄥ垎宸ヤ綔銆傜晫闈笉緹庤錛屽疄鐢ㄤ負(fù)涓伙紝鍑犲紶榪愯鏃舵埅鍥?br />
]]>
Node.js Undocumented(2)
鍐欒繖縐嶇郴鍒梑log錛屾槸涓轟簡(jiǎn)鐩戠潱鑷繁錛屼笉鐒舵垜浼拌鎴戜笉浼?xì)鏈夊姩鍔涘啓瀹屻傝繖涓鑺傦紝鎴戝皢浠嬬粛涓婤uffer榪欎釜module銆俲s鏈韓瀵規(guī)枃鏈弸濂斤紝浣嗘槸澶勭悊浜岃繘鍒舵暟鎹氨涓嶆槸鐗瑰埆鏂逛究錛屽洜姝ode.js鎻愪緵浜?jiǎn)Buffer妯″潡鏉ュ府鍔╀綘澶勭悊浜岃繘鍒舵暟鎹紝姣曠珶node.js鐨勫畾浣嶅湪緗戠粶鏈嶅姟绔紝涓嶈兘鍙鏂囨湰鍗忚鍙嬪ソ銆?br />
Buffer妯″潡鏈韓鍏跺疄娌℃湁澶氬皯鏈叕寮鐨勬柟娉曪紝閲嶈鐨勬柟娉曢兘鍦ㄦ枃妗ｉ噷鎻愬埌浜?jiǎn)锛屾湁涓や釜鏂规硶绋嶅井鍊肩殑鎻愪笅銆?br />
Buffer.get(idx)
璺焍uffer[idx]鏄竴鏍風(fēng)殑錛岃繑鍥炵殑鏄idx涓瓧鑺傦紝榪斿洖鐨勭粨鏋滄槸鏁板瓧錛屽鏋滆杞垚瀛楃錛岀敤String.fromCharCode(code)鍗沖彲銆?br />
Buffer.inspect()
榪斿洖Buffer鐨勫瓧絎︿覆琛ㄧず錛屾瘡涓瓧鑺傜敤鍗佸叚榪涘埗琛ㄧず錛屽綋浣犺皟鐢╟onsole.dir鐨勬椂鍊欐墦鍗扮殑灝辨槸榪欎釜鏂規(guī)硶榪斿洖鐨勭粨鏋溿?br />
Buffer鐪熸鍊肩殑涓鎻愮殑鏄畠鐨勫唴閮ㄥ疄鐜般侭uffer鍦╪ode.js鍐呴儴鐨刢pp浠ｇ爜瀵瑰簲鐨勬槸SlowBuffer綾伙紙src/node_buffer.cc)錛屼絾鏄袱鑰呬箣闂村茍涓嶆槸涓涓瀵瑰簲銆?strong>瀵逛簬鍒涘緩灝忎簬8K鐨凚uffer錛屽叾瀹炴槸浠庝竴涓猵ool閲宻lice鍑烘潵錛屽彧鏈夊ぇ浜?K鐨凚uffer鎵嶆槸姣忔閮絥ew涓涓猄lowBuffer銆傛煡鐪嬫簮鐮侊紙lib/buffer.js)錛?span style="color: #000000;">
Buffer.poolSize = 8 * 1024;
if (this.length > Buffer.poolSize) {
// Big buffer, just alloc one.
this.parent = new SlowBuffer(this.length);
this.offset = 0;
} else {
// Small buffer.
if (!pool || pool.length - pool.used < this.length) allocPool();
this.parent = pool;
this.offset = pool.used;
pool.used += this.length;
}
if (this.length > Buffer.poolSize) {
// Big buffer, just alloc one.
this.parent = new SlowBuffer(this.length);
this.offset = 0;
} else {
// Small buffer.
if (!pool || pool.length - pool.used < this.length) allocPool();
this.parent = pool;
this.offset = pool.used;
pool.used += this.length;
}
鍥犳錛屾垜浠彲浠ヤ慨鏀笲uffer.poolSize榪欎釜“闈?rùn)鎬?#8221;鍙橀噺鏉ユ敼鍙樻睜鐨勫ぇ灝?br />
Buffer.poolSize
Buffer綾誨垱寤虹殑姹犲ぇ灝忥紝澶т簬姝ゅ煎垯姣忔new涓涓猄lowBuffer錛屽惁鍒欎粠姹犱腑slice榪斿洖涓涓狟uffer錛屽鏋滄睜鍓╀綑絀洪棿涓嶅錛屽垯鏂板垱寤轟竴涓猄lowBuffer鍋氫負(fù)姹犮備笅闈㈢殑渚嬪瓙鎵撳嵃榪欎釜鍊煎茍淇敼鎴?6K:
console.log(Buffer.poolSize);
Buffer.poolSize=16*1024;
Buffer.poolSize=16*1024;
SlowBuffer綾?/strong>
SlowBuffer綾繪垜浠彲浠ョ洿鎺ヤ嬌鐢ㄧ殑錛屽鏋滀綘涓嶆兂浣跨敤Buffer綾葷殑璇濓紝SlowBuffer綾繪湁Buffer妯″潡鐨勬墍鏈夋柟娉曞疄鐜幫紝渚嬪瓙濡備笅錛?br />
var SlowBuffer=require('buffer').SlowBuffer
var buf=new SlowBuffer(1024)
buf.write("hello",'utf-8');
console.log(buf.toString('utf-8',0,5));
console.log(buf[0]);
var sub=buf.slice(1,3);
console.log(sub.length);
var buf=new SlowBuffer(1024)
buf.write("hello",'utf-8');
console.log(buf.toString('utf-8',0,5));
console.log(buf[0]);
var sub=buf.slice(1,3);
console.log(sub.length);
璇鋒敞鎰忥紝SlowBuffer榛樿涓嶆槸Global鐨勶紝闇瑕乺equire buffer妯″潡銆?br />
浣跨敤寤鴻鍜屾ц兘嫻嬭瘯
Buffer鐨勮繖涓疄鐜板憡璇夋垜浠紝瑕佷嬌鐢ㄥソBuffer綾昏繕鏄湁璁茬┒鐨勶紝姣忔鍒涘緩灝忎簬8K鐨凚uffer鏈濂藉ぇ灝忓垰濂借兘琚?k鏁撮櫎錛岃繖鏍瘋兘鍏呭垎鍒╃敤絀洪棿錛涙垨鑰呮瘡嬈″垱寤哄ぇ浜?K鐨凚uffer錛屽茍鍏呭垎閲嶇敤銆傛垜浠潵鐪嬩竴涓ц兘嫻嬭瘯錛屽垎鍒驚鐜?000涓囨鍒涘緩16K,4096鍜?097澶у皬鐨凚uffer錛岀湅鐪嬭楁椂澶氬皯錛?br />
function benchmark(size,repeats){
var total=0;
console.log("create %d size buffer for %d times",size,repeats);
console.time("times");
for(var i=0;i<repeats;i++){
total+=new Buffer(size).length;
}
console.timeEnd("times");
}
var repeats=10000000;
console.log("warm up
")
benchmark(1024,repeats);
console.log("start benchmark")
benchmark(16*1024,repeats);
benchmark(4096,repeats);
benchmark(4097,repeats);
var total=0;
console.log("create %d size buffer for %d times",size,repeats);
console.time("times");
for(var i=0;i<repeats;i++){
total+=new Buffer(size).length;
}
console.timeEnd("times");
}
var repeats=10000000;
console.log("warm up
")benchmark(1024,repeats);
console.log("start benchmark")
benchmark(16*1024,repeats);
benchmark(4096,repeats);
benchmark(4097,repeats);
鍒涘緩1024鐨凚uffer鏄負(fù)浜?jiǎn)鍋歸arm up銆傚湪鎴戞満鍣ㄤ笂鐨勮緭鍑猴細(xì)
start benchmark
create 16384 size buffer for 10000000 times
times: 81973ms
create 4096 size buffer for 10000000 times
times: 80452ms
create 4097 size buffer for 10000000 times
times: 138364ms
create 16384 size buffer for 10000000 times
times: 81973ms
create 4096 size buffer for 10000000 times
times: 80452ms
create 4097 size buffer for 10000000 times
times: 138364ms
鍒涘緩4096鍜屽垱寤?097澶у皬鐨凚uffer錛屽彧宸簡(jiǎn)涓涓瓧鑺傦紝鑰楁椂鍗寸浉宸潪甯稿ぇ錛屼負(fù)浠涔堜細(xì)榪欐牱錛熻鑰呭彲浠ヨ嚜宸辨牴鎹笂闈㈢殑浠嬬粛鍒嗘瀽涓嬶紝鏈夊叴瓚ｇ殑鍙互鐣欒█銆?br /> 鍙﹀錛屽彲浠ョ湅鍒板垱寤?6K鍜屽垱寤?K澶у皬鐨凚uffer錛屽樊璺濋潪甯稿皬錛屽鉤鍧囨瘡縐掗挓閮借兘鍒涘緩10涓囦釜浠ヤ笂鐨凚uffer錛岃繖涓晥鐜囧凡緇忚凍浠ユ弧瓚崇粷澶у鏁扮綉緇滃簲鐢ㄧ殑闇姹傘?br />
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fork鐨勫垎鏀湪錛?br /> https://github.com/killme2008/node-leveldb
緙栬瘧n(yōu)ode-leveldb涔嬪悗錛屾墽琛?br />
node memcached-adpater/memcached.js
鍗沖彲鍚姩memcached adapter鍦?1211绔彛錛屼綘鍙互telnet涓婂幓嫻嬭瘯銆傜洰鍓嶄粎鏀寔get/set/delete/quit鍗忚錛屼笉鏀寔flag鍜宔xptime銆?br />
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node.js鐨凙PI鏂囨。鍋氱殑涓嶆槸寰堝ソ錛屾湁浜涢儴鍒嗗共鑴嗘病鏂囨。錛屾渶緇堣繕鏄鐪嬩唬鐮佹墠鑳借В鍐熾傛垜榪欓噷灝嗚褰曚笅鐪嬫簮鐮佽繃紼嬩腑鐪嬪埌鐨勪竴浜汚PI騫惰ˉ鍏呬竴浜涙祴璇曚緥瀛愩傚湪鐜?a >node.js鐨勬湅鍙嬪彲浠ョ灖鐬с?br />
process.reallyExit(status)
鐢ㄤ簬榪涚▼涓誨姩閫鍑猴紝status璁劇疆閫鍑虹殑鐘舵佺爜銆傝娉ㄦ剰錛宺eallyExit閫鍑虹殑榪涚▼涓嶄細(xì)璋冪敤'exit'浜嬩歡錛屼笅闈㈢殑浠ｇ爜涓嶄細(xì)鏈変換浣曡緭鍑猴細(xì)
var interval=setInterval(function(){
process.reallyExit(1);
},1000);
process.on('exit',function(){
console.log("hello");
});
process.reallyExit(1);
},1000);
process.on('exit',function(){
console.log("hello");
});
process._kill(pid,sig)
鐢ㄤ簬緇欐寚瀹歱id鐨勮繘紼嬪彂閫佹寚瀹氫俊鍙鳳紙綾諱技kill鍛戒護(hù)錛夛紝榪欐槸涓?#8220;private”鏂規(guī)硶錛屼綘闇瑕佹厧閲嶄嬌鐢紝涓嬮潰鐨勪唬鐮佷細(xì)鏉姝昏嚜韜殑榪涚▼錛?br />
var pid=process.pid
process._kill(pid,9);
process._kill(pid,9);
process.binding(name)
闈炲父鏈夌敤鐨勬柟娉曪紝寰堝鎬狝PI鏂囨。閲岀珶鐒舵病鎻愬埌錛岃繖涓柟娉曠敤浜庤繑鍥炴寚瀹氬悕縐扮殑鍐呯疆妯″潡銆備緥濡備笅闈㈢殑浠ｇ爜灝嗘墦鍗皀ode_net妯″潡鎵鏈夌殑鍙互璋冪敤鐨勬柟娉曟垨鍙橀噺錛堝緢澶氭槸鏂囨。娌℃湁鎻愬埌鐨勫茍涓旀病鏈塭xports鐨勶紝鍚庣畫(huà)鎴戜細(xì)浠嬬粛涓嬶級(jí)錛?br />
var binding=process.binding('net');
console.dir(binding);
console.dir(binding);
process.dlopen(filename,target)
鐪嬫簮鐮佹敞閲婅鏄敤鏉ュ姩鎬佸姞杞絥ode.module鐨勫姩鎬侀摼鎺ュ簱鐨勶紝浠ュ悗灝濊瘯鍐欐墿灞曠殑鏃跺欎篃璁稿彲浠ュ皾璇曚竴涓嬨?br />
瀹氭椂鍣?/strong>
Node.js鐨勫畾鏃跺櫒妯″潡鐨勫疄鐜版槸鏈夎絀剁殑錛屽浜庤秴鏃舵椂闂碼fter<=0鐨刢allback錛屼細(xì)鍦ㄥ唴閮╪ew涓涓猅imer騫秙tart錛堟湰璐ㄦ槸浣跨敤libev鐨則imer鏈哄埗錛夛紱浣嗘槸瀵逛簬after>0鐨刢allback錛屽嵈涓嶆槸榪欐牱銆傚洜涓哄湪瀹為檯搴旂敤涓紝澶у鏁板畾鏃跺櫒浜嬩歡鐨勮秴鏃舵椂闂撮兘鏄竴鏍風(fēng)殑錛屽鏋滄瘡涓簨浠墮兘new涓涓猅imer騫秙tart錛屼唬浠峰お楂樸傚洜姝ode.js閲囩敤浜?jiǎn)涓涓被浼煎搱甯岃〃鐨勬柟妗堬紝灝嗙浉鍚宎fter瓚呮椂鏃墮棿鐨勫畾鏃跺櫒浜嬩歡緇勭粐鎴愰摼琛紝浠fter涓簁ey錛屼互閾捐〃涓簐alue鏁翠綋鏋勬垚涓寮犺〃銆傛瘡涓摼琛ㄥ彧new涓涓猅imer,榪欎釜Timer璐熻矗鏁翠釜閾捐〃鐨勫畾鏃跺櫒浜嬩歡錛屽綋鏌愪釜浜嬩歡瓚呮椂璋冪敤鍚庯紝鍒╃敤ev_timer_again鏉ラ珮鏁堝湴閲嶆柊璁劇疆瓚呮椂鏃墮棿銆?br /> 濡傛灉浣犵‘瀹炲笇鏈涘浜巃fter>0鐨勫畾鏃跺櫒涔熸瘡嬈ew涓涓猅imer鏉ュ鐞嗭紝閭ｄ篃鍙互鍋氬埌錛岃繖灝辮鐢ㄥ埌鍓嶉潰鎻愬埌鐨刾rocess.binding鏂規(guī)硶鏉ヨ幏鍙杢imer妯″潡,涓涓緥瀛愶細(xì)
var Timer = process.binding('timer').Timer;
var timer=new Timer();
timer.callback=function(){
console.log("callback called");
};
timer.start(1000,0);
var timer=new Timer();
timer.callback=function(){
console.log("callback called");
};
timer.start(1000,0);
timer.callback
璁懼畾timer鐨勫洖璋冨嚱鏁幫紝褰撹秴鏃剁殑鏃跺欒皟鐢ㄣ?br />
timer.start(after,repeat)
鍚姩瀹氭椂鍣紝鍦╝fter姣涔嬪悗璋冪敤瓚呮椂鍥炶皟錛涘鏋渞epeat==0錛屽垯鑷姩鍋滄瀹氭椂鍣紱濡傛灉repeat>0錛屽垯鍦╮epeat姣涔嬪悗鍐嶆璋冪敤callback錛屼互repeat姣涓洪棿闅斾笉鏂噸澶嶄笅鍘匯?br />
ps.榪欑瘒blog鍒氬ソ鏄垜鐨勭499綃嘼log錛屼笉鍑烘剰澶栵紝絎?00綃囪繕鏄戶(hù)緇粙緇峮ode.js銆?br />
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