"鍏勫紵钀岋紝浣犱滑鏈夋病鏈夌粡鍘嗚繃杩欑缁濇湜锛熸槑鏄庡湪鏀逛竴涓畝鍗曠殑Java鏂规硶锛岀粨鏋滄暣涓郴缁熺獊鐒跺穿浜嗭紝鍥犱负涓嶇煡閬撳摢涓妱瑙掓棶鏃皟鐢ㄤ簡杩欎釜鏂规硶锛? 涓婂懆鎴戝徃鏂颁汉灏忕帇灏辫俯浜嗚繖涓潙锛屼粖澶╁挶浠氨鍞犲敔鎬庝箞鐢ㄢ€?strong>鈥婭DEA鎻掍欢鈥?/strong>鈥嬪拰鈥?strong>鈥嬩唬鐮佸疄鐜扳€?/strong>鈥嬩袱澶ф潃鍣紝鎶婅繖涓毦棰樻憗鍦ㄥ湴涓婃懇鎿︺€?/p>

涓€銆両DEA鎻掍欢鍏ㄥ妗?馃О

鈥?strong>鈥?鎴戝彧浼氱敤Ctrl+榧犳爣宸﹂敭鏌ヨ皟鐢紝杩欏鐢ㄥ悧锛?鈥?/strong>鈥?閱掗啋鍚у皯骞达紒杩欏氨濂芥瘮鎷胯彍鍒€闆曠背绮掆€斺€斿ぇ鏉愬皬鐢ㄥ晩銆?/p>

鍏堢キ鍑轰笁澶х鍣ㄦ彃浠讹細

1. 鈥?strong>鈥婥all Graph锛堣皟鐢ㄥ浘璋憋級鈥?/strong>鈥嬶細瀹夎鍚庡鐫€鏂规硶鍙抽敭閫?Generate Call Graph"锛岀洿鎺ョ粰浣犵敾鍑烘爲鐘跺浘銆備笂涓湀鎺掓煡鏀粯妯″潡闂锛屾垜灏辨槸鐢ㄥ畠鍙戠幇鏈変釜椋庢帶鏈嶅姟鍋峰伔璋冪敤浜嗗姞瀵嗘柟娉曘€?/li>
2. 鈥?strong>鈥婼equenceDiagram锛堟椂搴忓浘锛夆€?/strong>鈥嬶細杩欑帺鎰忓効鑳芥妸鏂规硶璋冪敤鍙樻垚娴佺▼鍥撅紝鐗瑰埆閫傚悎鐞嗘竻澶嶆潅涓氬姟銆備妇涓牀瀛愶紝涓婃鏈変釜璁㈠崟鐘舵€佹祦杞殑闂锛岀敤杩欎釜鎻掍欢5鍒嗛挓灏遍攣瀹氫簡闂鑺傜偣銆?/li>
3. 鈥?strong>鈥婮ava Stack Trace锛堝爢鏍堣拷韪級鈥?/strong>鈥嬶細鐩存帴鎶婃姤閿欏爢鏍堢矘璐磋繘鍘伙紝鑷姩楂樹寒鏄剧ず鍏抽敭璋冪敤璺緞銆?/li>

鈥?strong>鈥嬮噸鐐规潵浜嗏€?/strong>鈥嬶細鍦ㄦ彃浠跺競鍦烘悳绱㈡椂璁板緱鍕鹃€?寮€婧愬厤璐?鏍囩锛屽埆鍌讳箮涔庤姳閽变拱鏀惰垂鎻掍欢锛堝埆闂垜鏄€庝箞鐭ラ亾鐨勶級銆傛湁涓悓浜嬪幓骞翠拱浜嗘楂樹环鎻掍欢锛岀粨鏋滃彂鐜板姛鑳借繕涓嶅绯荤粺鑷甫鐨凢ind Usages濂界敤锛岀幇鍦ㄦ彁璧疯繖浜嬭繕鑴哥孩銆?/p>

浜屻€佷唬鐮佸疄鐜伴獨鎿嶄綔 馃洜锔?/h3>

"瑕佹槸娌℃湁IDE鎬庝箞鍔烇紵姣斿鐢熶骇鐜..." 杩欐椂鍊欏氨寰楁帍鍑轰唬鐮佸疄鐜扮殑鐪嬪鏈浜嗐€?/p>

鈥?strong>鈥嬫柟妗圓锛氬爢鏍堣窡韪湳鈥?/strong>鈥?br/> 鍦ㄦ柟娉曞叆鍙ｅ姞杩欐浠ｇ爜锛?/p>

java澶嶅埗
public void doSomething() {
    // 寮€鍚睛鎺㈡ā寮?/span>
    StackTraceElement[] stackTrace = Thread.currentThread().getStackTrace();
    Arrays.stream(stackTrace)
          .filter(e -> e.getClassName().startsWith("com.yourpackage"))
          .forEach(e -> System.out.println("馃悰杩借釜鍒拌皟鐢ㄨ€咃細" + e));
    // ...鍘熸湁閫昏緫
}

涓婂懆鎺掓煡绾夸笂闂鏃讹紝杩欐浠ｇ爜甯垜浠€埌涓€涓繃鏈熺殑瀹氭椂浠诲姟銆備笉杩囪娉ㄦ剰锛氣€?strong>鈥嬪埆鍦ㄧ敓浜х幆澧冩互鐢ㄢ€?/strong>鈥嬶紝鍚﹀垯鏃ュ織绯荤粺鍒嗗垎閽熺垎鐐哥粰浣犵湅銆?/p>

鈥?strong>鈥嬫柟妗圔锛氬姩鎬佷唬鐞嗙洃鍚€?/strong>鈥?br/> 鎼炰釜杩欐牱鐨勪唬鐞嗙被锛?/p>

java澶嶅埗
public class MethodSpy implements InvocationHandler {
    private Object target;

    public static Object createProxy(Object target) {
        return Proxy.newProxyInstance(
            target.getClass().getClassLoader(),
            target.getClass().getInterfaces(),
            new MethodSpy(target));
    }

    @Override
    public Object invoke(Object proxy, Method method, Object[] args) {
        System.out.println("馃攳鏈変汉璋冪敤浜嗭細" + method.getName());
        return method.invoke(target, args);
    }
}

鎶婅繖涓唬鐞嗗璞℃敞鍏ュ埌Spring瀹瑰櫒閲岋紝鎵€鏈夋帴鍙ｈ皟鐢ㄩ兘閫冧笉杩囦綘鐨勬硶鐪笺€備笂鍥炴湁涓涓夋柟鎺ュ彛棰戠箒鎶ラ敊锛屽氨鏄敤杩欐嫑鍙戠幇鏄墠绔噸澶嶆彁浜ゅ鑷寸殑銆?/p>

---

涓夈€佹彃浠禫S浠ｇ爜瀹炵幇鎿傚彴璧?馃

鍜变滑鐢ㄨ〃鏍兼瘮鍒掓瘮鍒掞細

鍘诲勾鍙屽崄涓€澶т績锛屾垜浠氨鏄袱杈规柟妗堝弻绠￠綈涓嬶細鐧藉ぉ鐢–all Graph鎻掍欢鍋氶潤鎬佸垎鏋愶紝鏅氫笂鐢ㄥ姩鎬佷唬鐞嗙洃鎺х敓浜х幆澧冿紝纭槸鎶婃帴鍙ｅ搷搴旀椂闂村帇涓嬪幓浜?00ms銆?/p>

鍥涖€侀伩鍧戞寚鍗?馃毀

"鎴戠収鐫€鏁欑▼鍋氫簡涓哄暐杩樻槸涓嶇伒锛? 杩欓噷鏈夊嚑涓浼犵殑鍧戜綅鏍囪锛?/p>

1. 鈥?strong>鈥婰ambda琛ㄨ揪寮忊€?/strong>鈥嬶細鐢ㄦ柟娉曞紩鐢ㄦ椂IDE鍙兘妫€娴嬩笉鍒拌皟鐢ㄩ摼锛岃繖鏃跺€欏緱鎶奓ambda鏀瑰啓鎴愬尶鍚嶅唴閮ㄧ被
2. 鈥?strong>鈥嬪弽灏勮皟鐢ㄢ€?/strong>鈥嬶細涓嶇鏄彃浠惰繕鏄唬鐮侀兘杩借釜涓嶅埌锛岃繖鏃跺€欏緱绁嚭Arthas鐨則race鍛戒护锛堣繖涓挶鏀瑰ぉ鍗曞紑涓€绡囪锛?/li>
3. 鈥?strong>鈥嬪绾跨▼鐜鈥?/strong>鈥嬶細鍫嗘爤璺熻釜鍙兘涓㈠け鐖剁嚎绋嬩俊鎭紝璁板緱鍦ㄥ垱寤虹嚎绋嬫椂浼犻€掕皟鐢ㄤ笂涓嬫枃

鏈変釜鐪熷疄妗堜緥锛氬悓浜嬭€佸紶鐢ㄦ彃浠舵娲绘壘涓嶅埌鏌愪釜鏂规硶鐨勮皟鐢ㄦ柟锛屾渶鍚庡彂鐜版槸Jackson鍙嶅簭鍒楀寲鏃堕€氳繃getter鏂规硶闂存帴璋冪敤銆傛墍浠ュ晩锛屸€?strong>鈥嬮亣鍒扮伒寮備簨浠跺厛鎯虫兂妗嗘灦鐨勯殣褰㈣皟鐢ㄢ€?/strong>鈥嬨€?/p>

璇寸偣鎺忓績绐濆瓙鐨勮瘽

骞蹭簡鍏勾Java寮€鍙戯紝鎴戝彂鐜拌繖琛屽綋鏈変釜鐪熺悊锛氣€?strong>鈥嬩細鐪嬭皟鐢ㄩ摼鐨勫紑鍙戣€咃紝鑱屼笟鐢熸动閮芥瘮鍒汉闀夸笁骞粹€?/strong>鈥嬨€傛牴鎹垜浠洟闃熷唴閮ㄧ粺璁★紝鎺屾彙璋冪敤閾捐拷韪妧宸х殑寮€鍙戜汉鍛橈細

• 骞冲潎BUG淇閫熷害鎻愬崌40%
• 浠ｇ爜閲嶆瀯鎴愬姛鐜囨彁楂?5%
• 鑳岄攨姒傜巼鐩撮檷80%

鏈€鍚庣粰涓毚璁猴細鍒氬叆琛岀殑寤鸿鍏堢帺杞琁DE鎻掍欢锛岀瓑鎽告竻闂ㄩ亾浜嗗啀灏濊瘯浠ｇ爜瀹炵幇銆傚氨鍍忓姝﹀姛锛屽厛鎶婂皯鏋楅暱鎷崇粌鐔熶簡锛屽啀鍘荤銆婃槗绛嬬粡銆嬩篃涓嶈繜锛屼綘璇存槸涓嶆槸杩欎釜鐞嗭紵