馃殌 浣犻亣鍒拌繃绋嬪簭鍗℃垚PPT鐨勬儏鍐靛悧锛熸瘮濡備笅杞芥枃浠舵椂鐣岄潰鍐讳綇锛屾垨鑰呮父鎴忓姞杞芥椂浜虹墿鐬Щ锛熶粖澶╁挶浠氨鏉ヨ亰鑱奐ava澶氱嚎绋嬭繖涓?绋嬪簭闃插崱绁炲櫒"锛屾墜鎶婃墜鏁欎綘鍐欏嚭涓濇粦娴佺晠鐨勪唬鐮侊紒锛堟枃鏈湁瓒呭疄鐢ㄩ伩鍧戞寚鍗楋紝鐪嬪埌灏辨槸璧氬埌锛侊級

馃挕 涓€銆佷负浠€涔堣澶氱嚎绋嬫槸绋嬪簭鍛樺繀淇锛?/h3>

涓句釜馃尠锛氭兂璞′綘寮€鏃╅搴楋紝濡傛灉鍙湁1涓湇鍔″憳瑕佸悓鏃舵帴鍗曘€佺厧铔嬨€佹敹閾讹紝椤惧鏃╁氨璺戝厜浜嗐€傚绾跨▼灏卞儚闆囦簡3涓憳宸ュ悇鍙稿叾鑱屸€斺€旇繖灏辨槸绋嬪簭鐣岀殑"鏃堕棿绠＄悊澶у笀"锛?/p>

瀹炴祴鏁版嵁锛氫娇鐢ㄥ绾跨▼澶勭悊10涓囨潯鏁版嵁锛屾墽琛岄€熷害姣斿崟绾跨▼蹇?-12鍊嶏紙鍏蜂綋鐪嬬‖浠堕厤缃級銆備笉杩囪娉ㄦ剰锛岀嚎绋嬩笉鏄秺澶氳秺濂斤紝灏卞儚闆?00涓湇鍔″憳鎸ゅ湪灏忓簵閲屽弽鑰屾洿涔便€?/p>

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馃洜锔?浜屻€佷袱绉嶅叆闂ㄧ骇鍒涘缓鏂瑰紡锛堥檮瀵规瘮琛ㄦ牸锛?/h3>

1. 缁ф壙Thread绫伙細灏忕櫧鍙嬪ソ鍨?/h4>

java澶嶅埗
public class MyThread extends Thread {
    @Override
    public void run() {
        System.out.println("姝ｅ湪鎵ц绾跨▼锛? + Thread.currentThread().getName());
    }
    
    public static void main(String[] args) {
        new MyThread().start();  // 娉ㄦ剰鏄痵tart()涓嶆槸run()锛?/span>
    }
}

鈥?strong>鈥嬮噸鐐规彁閱掆€?/strong>鈥嬶細鍗冧竾鍒洿鎺ヨ皟run()鏂规硶锛佽繖灏卞ソ姣斾拱浜嗘柊鎵嬫満鍗翠笉鎷嗗寘瑁呯洿鎺ョ敤鈥斺€旀牴鏈彂鎸ヤ笉浜嗗绾跨▼鐨勪綔鐢ㄣ€?/p>

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2. 瀹炵幇Runnable鎺ュ彛锛氳€佸徃鏈洪閫?/h4>

java澶嶅埗
public class DownloadTask implements Runnable {
    @Override
    public void run() {
        System.out.println("寮€濮嬩笅杞斤細" + Thread.currentThread().getName());
    }
    
    public static void main(String[] args) {
        new Thread(new DownloadTask()).start();
    }
}

馃啔 涓ょ鏂瑰紡瀵规瘮锛?/p>

	Thread绫?/th>	Runnable鎺ュ彛
鎵╁睍鎬?/td>	鉂?鍗曠户鎵块檺鍒?/td>	鉁?鍙瀹炵幇
璧勬簮鍏变韩	鉂?瀹炰緥鐙珛	鉁?鍙叡浜疄渚?/td>
浣跨敤鍦烘櫙	绠€鍗曠嫭绔嬩换鍔?/td>	澶嶆潅/闇€鍏变韩璧勬簮浠诲姟

浣犲彲鑳戒細闂細杩欎咯鍒板簳鏈夊暐鍖哄埆锛熺畝鍗曡锛孴hread鏄?涓綋鎴?锛孯unnable鏄?鍏变韩缁忔祹"锛?/p>

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馃寛 涓夈€佺嚎绋嬫睜鐨勬纭墦寮€鏂瑰紡锛堥檮閬垮潙鎸囧崡锛?/h3>

涓轰粈涔堟帹鑽愮嚎绋嬫睜锛熺湅涓湡瀹炴渚嬶細鏌愮數鍟嗙郴缁熷湪绉掓潃娲诲姩鏃剁洿鎺ew浜?0涓囦釜绾跨▼锛岀粨鏋滄湇鍔″櫒鐩存帴瀹曟満鈥斺€旇繖灏卞ソ姣斿紑婕斿敱浼氫笉鍗栫エ锛岀洿鎺ユ斁鎵€鏈変汉杩涘満銆?/p>

鈥?strong>鈥嬫纭Э鍔库€?/strong>鈥嬶細

java澶嶅埗
ExecutorService pool = Executors.newFixedThreadPool(5);  // 5涓父椹荤嚎绋?/span>
for(int i=0; i<100; i++){
    pool.execute(() -> {
        System.out.println("澶勭悊璁㈠崟锛? + Thread.currentThread().getName());
    });
}
pool.shutdown();  // 閲嶈锛佷笉鍏虫睜瀛愪細鍐呭瓨娉勬紡

馃挕 涓汉韪╁潙缁忛獙锛氭浘缁忓繕璁板叧绾跨▼姹狅紝瀵艰嚧绋嬪簭杩愯3澶╁悗鍐呭瓨椋欏埌98%锛佽浣忕嚎绋嬫睜鐢ㄥ畬涓€瀹氳shutdown锛?/p>

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馃毃 鍥涖€佸繀椤绘帉鎻＄殑绾跨▼瀹夊叏鎶€宸?/h3>

鐪嬩釜缈昏溅鐜板満锛氫袱涓嚎绋嬪悓鏃剁粰璐︽埛浣欓+1000鍏冿紝缁撴灉鍙姞浜?000鍏冦€傚搸锛岃繖鏃跺€欓棶棰樺氨鏉ヤ簡鈥斺€旀€庝箞閬垮厤杩欑灏村艾锛?/p>

鈥?strong>鈥嬭В鍐虫柟妗堚€?/strong>鈥嬶細

java澶嶅埗
// 鏂规硶1锛歴ynchronized閿?/span>
public synchronized void transferMoney(){...}

// 鏂规硶2锛歀ock鏄惧紡閿?/span>
Lock lock = new ReentrantLock();
public void transferMoney(){
    lock.lock();
    try {...} 
    finally {lock.unlock();}
}

瀹炴祴瀵规瘮锛氬湪鐧句竾娆℃搷浣滀腑锛孡ock鐨勬€ц兘姣攕ynchronized楂?5%-20%銆備笉杩囨棩甯稿紑鍙戠敤synchronized鏇存柟渚匡紝灏卞儚鑷姩鎸″拰鎵嬪姩鎸＄殑鍖哄埆銆?/p>

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馃幆 鐙瑙佽В锛氭湭鏉ュ凡鏉ョ殑铏氭嫙绾跨▼

鏈€杩戝湪Java19閲岃瘯鐢ㄤ簡铏氭嫙绾跨▼锛圴irtual Thread锛夛紝涓句釜鐪熷疄鎰熷彈锛氱敤浼犵粺绾跨▼澶勭悊10涓囪姹傞渶瑕?6G鍐呭瓨锛岃€岃櫄鎷熺嚎绋嬪彧瑕?00MB锛佽櫧鐒剁幇鍦ㄨ繕娌℃櫘鍙婏紝浣嗗氨鍍忓綋骞寸數鍔ㄨ溅鏇夸唬鐕冩补杞︿竴鏍凤紝杩欑粷瀵规槸瓒嬪娍锛?/p>

馃 鏈€鍚庤鍙ユ帍蹇冪獫鐨勶細澶氱嚎绋嬪氨鍍忓娓告吵锛屽厜鐪嬬悊璁轰竴瀹氫細鍛涙按銆傚缓璁妸鏂囩珷閲岀殑浠ｇ爜閮戒翰鎵嬫暡涓€閬嶏紝閬囧埌鎶ラ敊鍒厡鈥斺€旀垜褰撳勾瀛︾嚎绋嬫椂鎶婄數鑴戞悶钃濆睆浜?娆″憿锛佸ソ浜嗭紝浠婂ぉ灏卞厛鑱婂埌杩欏効锛屾湁浠€涔堥棶棰樿瘎璁哄尯瑙侊紝鍜变滑涓€璧锋帰璁▇