{"id":2515,"date":"2025-09-26T20:52:37","date_gmt":"2025-09-26T12:52:37","guid":{"rendered":"https:\/\/note.ui11.cc\/?p=2515"},"modified":"2025-09-27T17:56:04","modified_gmt":"2025-09-27T09:56:04","slug":"%e5%b9%b6%e5%8f%91%e5%a4%9a%e7%ba%bf%e7%a8%8b","status":"publish","type":"post","link":"https:\/\/note.ui11.cc\/index.php\/2025\/09\/26\/%e5%b9%b6%e5%8f%91%e5%a4%9a%e7%ba%bf%e7%a8%8b\/","title":{"rendered":"\u5e76\u53d1\u591a\u7ebf\u7a0b"},"content":{"rendered":"\n
\"\"<\/div><\/figure>\n\n\n\n

\u7ebf\u7a0b\u548c\u8fdb\u7a0b\u7684\u533a\u522b\uff1f<\/strong><\/p>\n\n\n\n

\"\"<\/div><\/figure>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n

\u5e76\u884c\u548c\u5e76\u53d1\u7684\u533a\u522b\uff1f<\/p>\n\n\n\n

\"\"<\/div><\/figure>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n

\u521b\u5efa\u7ebf\u7a0b\u7684\u65b9\u5f0f\u6709\u54ea\u4e9b\uff1f<\/p>\n\n\n\n

\"\"<\/div><\/figure>\n\n\n\n

1\uff1a<\/p>\n\n\n\n

\"\"<\/div><\/figure>\n\n\n\n

2\uff1a<\/p>\n\n\n\n

\"\"<\/div><\/figure>\n\n\n\n

3\uff1a\u5b9e\u73b0Callable\u63a5\u53e3\u5e76\u7528future task\u6765\u83b7\u53d6\u6267\u884c\u7ed3\u679c<\/p>\n\n\n\n

\"\"<\/div><\/figure>\n\n\n\n

\u8fd9\u9700\u8981\u5b9a\u4e49\u4e00\u4e2a\u6cdb\u578b\uff0ccall\u91cc\u9762\u7684\u4ee3\u7801\u5c31\u662f\u6211\u4eec\u81ea\u5b9a\u4e49\u8981\u6267\u884c\u7684\u4ee3\u7801<\/p>\n\n\n\n

4\uff1a<\/p>\n\n\n\n

\"\"<\/div><\/figure>\n\n\n\n

\u8fd9\u4e2aMyExecutors\u8981\u53bb\u662f\u5b9e\u73b0runnable\u6216\u8005callable\u63a5\u53e3<\/p>\n\n\n\n

\u7ebf\u7a0b\u5305\u62ec\u54ea\u4e9b\u72b6\u6001\uff1f<\/strong><\/p>\n\n\n\n


<\/strong><\/p>\n\n\n\n

\"\"<\/div><\/figure>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n

t2\u8fd0\u884c\u5fc5\u987b\u7b49\u5f85t1\u7ed3\u675f\uff0ct3\u8fd0\u884c\u5fc5\u987b\u7b49\u5f85t2\u7ed3\u675f<\/p>\n\n\n\n

\"\"<\/div><\/figure>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n

<\/p>\n\n\n\n

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\"\"<\/div><\/figure>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n

CAS<\/strong>\u00a0\u662f\u4e00\u4e2a\u5355\u4e00\u7684\u539f\u5b50\u64cd\u4f5c<\/strong>\uff1a\u5b83\u5c31\u50cf\u4e00\u628a \u201c\u7cbe\u5bc6\u7684\u87ba\u4e1d\u5200\u201d\uff0c\u529f\u80fd\u5f88\u5355\u4e00 \u2014\u2014 \u53ea\u80fd\u5b8c\u6210 \u201c\u6bd4\u8f83\u5185\u5b58\u4e2d\u7684\u503c\u662f\u5426\u7b49\u4e8e\u9884\u671f\u503c\uff0c\u5982\u679c\u662f\u5c31\u6362\u6210\u65b0\u503c\u201d \u8fd9\u4e00\u4e2a\u52a8\u4f5c\uff0c\u800c\u4e14\u8fd9\u4e2a\u52a8\u4f5c\u662f\u539f\u5b50\u7684\uff08\u4e0d\u4f1a\u88ab\u6253\u65ad\uff09\u3002<\/p>\n\n\n\n

\"\"<\/div><\/figure>\n\n\n\n

volatile<\/strong><\/p>\n\n\n\n

\"\"<\/div><\/figure>\n\n\n\n

\u5f53\u6267\u884c\u7684\u65f6\u5019\u6700\u540e\u4e00\u4e2a\u7ebf\u7a0b\u4e0d\u4f1a\u7ed3\u675f\uff0c\u56e0\u4e3ajvm\u6709\u4e2ajit\u7f16\u8bd1\u5668\uff0c\u4ed6\u4f1a\u81ea\u52a8\u628a\u6761\u4ef6\u7f16\u8bd1\u4e3a<\/p>\n\n\n\n

while\uff08true\uff09\uff0c\u4e5f\u5c31\u662f\u628a\uff01stop\u7f16\u8bd1\u4e3atrue\u8fd9\u6837\u4f60\u53bb\u6539\u53d8stop\u7684\u503c\u7ebf\u7a0b3\u5e76\u4e0d\u4f1a\u505a\u51fa\u4efb\u4f55\u6539\u53d8<\/p>\n\n\n\n

\u89e3\u6cd5\uff1a<\/p>\n\n\n\n

\u4e00\uff1a\u52a0vm\u53c2\u6570\u5173\u95ed\u53ca\u65f6\u7f16\u8bd1\u5668\uff08\u5f97\u4e0d\u507f\u5931\uff09<\/p>\n\n\n\n

\"\"<\/div><\/figure>\n\n\n\n

\u4e8c\uff1a\u7528volatile\u53bb\u4fee\u9970\u5171\u4eab\u53d8\u91cf\uff08\u544a\u8bc9\u53ca\u65f6\u7f16\u8bd1\u5668\u4e0d\u8981\u5bf9\u8fd9\u4e2a\u53d8\u91cf\u8fdb\u884c\u4f18\u5316\uff09<\/p>\n\n\n\n

AQS:<\/p>\n\n\n\n

\"\"<\/div><\/figure>\n\n\n\n

AQS\u7ef4\u62a4\u4e86\u4e00\u4e2a\u6d88\u606f\u961f\u5217\uff0c\u5148\u8fdb\u5148\u51fa\u7684\u961f\u5217\uff0c\u540c\u65f6\u7ef4\u62a4\u4e86\u4e00\u4e2astate\u53d8\u91cf\uff0c\u653e\u4e00\u4e2a\u7ebf\u7a0b\u6765\u5230\u4e4b\u540e\u6301\u6709\u9501\u4f1a\u5c06state\u66f4\u6539\u4e3a0—>1\uff0c\u8fd9\u6837\u5f53\u7b2c\u4e8c\u4e2a\u7ebf\u7a0b\u6765\u4e86\u4e4b\u540e\u4f1a\u8fdb\u5165\u961f\u5217\u8fdb\u884c\u6392\u961f\u7b49\u5f85\uff0c\u76f4\u5230state\u53d8\u4e3a0\u4e4b\u540e\u7b49\u5f85\u7684\u7ebf\u7a0b\u624d\u4f1a\u7ee7\u7eed\u6267\u884c\uff0c\u540c\u65f6\u628a0\u6539\u4e3a1\u4f9d\u6b21\u7c7b\u63a8<\/p>\n\n\n\n

\"\"<\/div><\/figure>\n\n\n\n

\u5982\u679c\u4e00\u5f00\u59cb\u5c31\u6709\u591a\u4e2a\u7ebf\u7a0b\u53bb\u4e89\u62a2\u66f4\u6539state\u600e\u4e48\u529e\uff1f<\/p>\n\n\n\n

aqs\u5e95\u5c42\u7528\u7684\u662fcas\uff0c\u6bd4\u8f83\u5e76\u4ea4\u6362\uff0cAQS<\/strong>\u00a0\u662f\u4e00\u4e2a\u5b8c\u6574\u7684 \u201c\u5de5\u4f5c\u53f0\u201d<\/strong>\uff1a\u5b83\u4e0d\u4ec5\u7528\u5230\u4e86 CAS \u8fd9\u628a \u201c\u87ba\u4e1d\u5200\u201d\uff0c\u8fd8\u5305\u542b\u4e86\u5176\u4ed6 \u201c\u96f6\u4ef6\u201d\uff1a<\/p>\n\n\n\n

\u4e00\u4e2a\u00a0state<\/code>\u00a0\u53d8\u91cf\uff08\u8bb0\u5f55\u9501\u7684\u72b6\u6001\uff0c\u6bd4\u5982\u662f\u5426\u88ab\u5360\u7528\u3001\u91cd\u5165\u6b21\u6570\u7b49\uff09\uff1b<\/p>\n\n\n\n

\u4e00\u4e2a\u53cc\u5411\u94fe\u8868\uff08\u7ba1\u7406\u7b49\u5f85\u9501\u7684\u7ebf\u7a0b\u961f\u5217\uff09\uff1b<\/p>\n\n\n\n

\u4e00\u5957\u7ebf\u7a0b\u963b\u585e \/ \u5524\u9192\u7684\u903b\u8f91\uff08\u901a\u8fc7\u00a0LockSupport<\/code>\u00a0\u5b9e\u73b0\uff09\u3002<\/p>\n\n\n\n

AQS \u7528 CAS \u6765\u505a\u4ec0\u4e48\uff1f<\/p>\n\n\n\n

\"\"<\/div><\/figure>\n\n\n\n

aqs\u65e2\u53ef\u4ee5\u662f\u516c\u5e73\u9501\u4e5f\u53ef\u4ee5\u662f\u975e\u516c\u5e73\u9501\uff0c\u56e0\u4e3a<\/p>\n\n\n\n

\"\"<\/div><\/figure>\n\n\n\n

\u5982\u679c\u961f\u5217\u4e2d\u7684\u7ebf\u7a0b\u548c\u65b0\u8fdb\u6765\u7684\u7ebf\u7a0b\u4e89\u62a2state\uff0c\u90a3\u4e48\u5c31\u662f\u975e\u516c\u5e73\u9501\uff0c\u5982\u679c\u6ca1\u6709\u65b0\u7684\u7ebf\u7a0b\uff0c\u90a3\u4e48\u673a\u4f1a\u6309\u961f\u5217\u4e2d\u7684\u7ebf\u7a0b\u8fdb\u884c\u6267\u884c\uff0c\u6b64\u65f6\u4ed6\u662f\u516c\u5e73\u9501\uff0c<\/p>\n\n\n\n

ReentrantLock\uff1a<\/strong><\/p>\n\n\n\n

\"\"<\/div><\/figure>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n

ConcurrentHashMap:<\/p>\n\n\n\n

\u8fd9\u4e2a\u662f\u4e00\u4e2a\u7ebf\u7a0b\u5b89\u5168\u7684\u96c6\u5408\uff0c<\/p>\n\n\n\n

\"\"<\/div><\/figure>\n\n\n\n

1.7\u7248\u672c\uff1a\u524d\u9762\u7684\u6570\u7ec4\u662f\u4e0d\u53ef\u90a3\u53d8\u6570\u7ec4\uff0c\u540e\u9762\u662f\u53ef\u53d8\u6570\u7ec4\uff0c\u5f53\u6570\u636e\u8fc7\u6765\u4e4b\u540e\u5148\u8ba1\u7b97\u5176hash\u503c\u7136\u540e\u8fdb\u53bb\u7b2c\u4e00\u7ec4\u6570\u7ec4\u4e2d\u5bf9\u5e94\u7684\u4f4d\u7f6e\uff0c\u7136\u540e\u6839\u636ereentrantlock\u53bb\u9501\u4f4f\u8fd9\u4e2a\u7ebf\u7a0b\u4e00\u4e2a\u4e00\u4e2a\u8fdb\u5165\u91cc\u9762\u90a3\u4e00\u5c42\u7684\u6570\u7ec4\uff0c\u91cc\u9762\u8fd9\u4e2a\u6570\u7ec4\u5b58\u7684\u5c31\u662f\u6570\u636e\u4e86<\/p>\n\n\n\n

1.8\u4ee5\u53ca\u4ee5\u540e\u7248\u672c\uff1a<\/p>\n\n\n\n

\"\"<\/div><\/figure>\n\n\n\n

\u56de\u7b54\uff1a<\/p>\n\n\n\n

\"\"<\/div><\/figure>\n\n\n\n

\u7ebf\u7a0b\u6c60\u7684\u6838\u5fc3\u53c2\u6570\uff1a<\/p>\n\n\n\n

\"\"<\/div><\/figure>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n

<\/p>\n","protected":false},"excerpt":{"rendered":"

\u7ebf\u7a0b\u548c\u8fdb\u7a0b\u7684\u533a\u522b\uff1f \u5e76\u884c\u548c\u5e76\u53d1\u7684\u533a\u522b\uff1f \u521b\u5efa\u7ebf\u7a0b\u7684\u65b9\u5f0f\u6709\u54ea\u4e9b\uff1f 1\uff1a 2\uff1a 3\uff1a\u5b9e\u73b0Callable\u63a5\u53e3\u5e76\u7528f […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-2515","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/note.ui11.cc\/index.php\/wp-json\/wp\/v2\/posts\/2515","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/note.ui11.cc\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/note.ui11.cc\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/note.ui11.cc\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/note.ui11.cc\/index.php\/wp-json\/wp\/v2\/comments?post=2515"}],"version-history":[{"count":3,"href":"https:\/\/note.ui11.cc\/index.php\/wp-json\/wp\/v2\/posts\/2515\/revisions"}],"predecessor-version":[{"id":2557,"href":"https:\/\/note.ui11.cc\/index.php\/wp-json\/wp\/v2\/posts\/2515\/revisions\/2557"}],"wp:attachment":[{"href":"https:\/\/note.ui11.cc\/index.php\/wp-json\/wp\/v2\/media?parent=2515"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/note.ui11.cc\/index.php\/wp-json\/wp\/v2\/categories?post=2515"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/note.ui11.cc\/index.php\/wp-json\/wp\/v2\/tags?post=2515"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}