{"id":229,"date":"2018-09-18T20:15:02","date_gmt":"2018-09-18T12:15:02","guid":{"rendered":"http:\/\/www.kaispace.cn\/?p=229"},"modified":"2018-09-18T20:15:02","modified_gmt":"2018-09-18T12:15:02","slug":"java%e5%a4%9a%e7%ba%bf%e7%a8%8b%e9%80%9a%e4%bf%a1%ef%bc%881%ef%bc%89%e4%b9%8bobject-waitnotify","status":"publish","type":"post","link":"https:\/\/blog.kaispace.cn\/?p=229","title":{"rendered":"Java\u591a\u7ebf\u7a0b\u901a\u4fe1\uff081\uff09\u4e4bsynchronized|Object.wait()&notify"},"content":{"rendered":"

Object.wait()&notify\u662f\u5c5e\u4e8e\u6bd4\u8f83\u5e38\u89c1\u7684\u591a\u7ebf\u7a0b\u540c\u6b65\u65b9\u5f0f<\/h3>\n

\u9996\u5148\u4e86\u89e3\u7528\u6cd5\u4e4b\u524d\uff0c\u6211\u4eec\u5148\u8981\u6e05\u695a\u591a\u7ebf\u7a0b\u5728\u901a\u8fc7\u8fd9\u4e2a\u65b9\u6cd5\u8fdb\u884c\u540c\u6b65\u65f6\u6709\u54ea\u4e9b\u72b6\u6001\u3002\u5047\u8bbe\u4e0b\u5217\u4e24\u4e2a\u7ebf\u7a0b\u540c\u65f6start<\/p>\n

1.Alive => wait() ——————–=========\u2462=>function()=>notify()====\u2463=><\/strong><\/p>\n

2.Alive=====\u2460=>function()=>notify()\u2461=>wait()————————–=======<\/strong><\/p>\n

=\uff1a\u7b49\u5f85\u9636\u6bb5,\u56e0\u4e3aJVM\u5206\u914d\u4e0d\u5230\u5b83\u5de5\u4f5c\uff0c\u7b49\u5f85\u9501\u8d44\u6e90\u91ca\u653e\u3002<\/p>\n

-\uff1await\u9636\u6bb5\uff0c\u4e0d\u6d3b\u8dc3\uff0c\u76f4\u5230\u67d0\u4e2a\u6301\u6709\u9501\u8d44\u6e90<\/span>\u7684\u7ebf\u7a0b\u8c03\u7528notify()<\/span>\u6216\u8005notifyAll()<\/span><\/p>\n

\u2460\u4e00\u9636\u6bb5\u4e4b\u6240\u4ee52\u7ebf\u7a0b\u5904\u4e8e\u7b49\u5f85\u9636\u6bb5\uff0c\u662f\u56e0\u4e3aJVM\u5148\u5206\u914d\u8d44\u6e90\u7ed9\u4e861\u7ebf\u7a0b<\/p>\n

\u2461\u90e8\u5206\u5f532\u7ebf\u7a0b\u8c03\u7528notify()\u540eJVM\u5524\u9192\u4e861\u7ebf\u7a0b\uff08\u6ce8\u610f!\u5982\u679c\u8fd9\u91cc\u67092\u4e2a\u7ebf\u7a0b\u5904\u4e8ewait\u72b6\u6001\uff0c\u53ea\u4f1a\u968f\u673a\u5524\u9192\u4e00\u4e2a\uff09<\/p>\n

\u24622\u7ebf\u7a0bwait\u540e\uff0c1\u7ebf\u7a0b\u88ab\u5b89\u6392\u5f00\u59cb\u5de5\u4f5c<\/p>\n

\u2463\u6ce8\u610f\u8fd9\u91cc1\u7ebf\u7a0b\u5de5\u4f5c\uff0c\u8c03\u7528notify()\u540e\u6ca1\u6709wait,\u65451\u30012\u7ebf\u7a0b\u90fd\u7b49\u5f85JVM\u5206\u914d\uff0c\u6070\u597d1\u7ebf\u7a0b\u53c8\u88ab\u5206\u914d\u5230\uff0c\u6240\u4ee5\u7ee7\u7eed\u8fdb\u884c\u3002<\/p>\n

Object\u7531\u4e8e\u662f\u6bd4\u8f83\u8001\u7684\u7ebf\u7a0b\u540c\u6b65\uff0c\u6240\u4ee5\u6211\u5728\u5199\u6d88\u8d39\u8005\u751f\u4ea7\u8005\u65f6\u5019\u603b\u662f\u4f1a\u9047\u89c1\u7ebf\u7a0b\u6ca1\u6709\u62e5\u6709\u9501\u8d44\u6e90\u5374\u8c03\u7528wait()&notify()\u7684\u9519\u8bef\u2014\u2014IllegalMonitorStateException<\/span><\/p>\n

\u540e\u9762\u91c7\u7528\u4e861.5\u65b0\u589e\u7684Lock\u548cCondition\u7684await() \/ signal()\u65b9\u6cd5\uff0c\u4e0b\u4e00\u7ae0\u5199<\/p>\n","protected":false},"excerpt":{"rendered":"

Object.wait()&notify\u662f\u5c5e\u4e8e\u6bd4\u8f83\u5e38\u89c1\u7684\u591a\u7ebf\u7a0b\u540c\u6b65\u65b9\u5f0f \u9996\u5148\u4e86\u89e3\u7528\u6cd5\u4e4b\u524d\uff0c\u6211\u4eec\u5148\u8981\u6e05\u695a…<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[8],"tags":[],"_links":{"self":[{"href":"https:\/\/blog.kaispace.cn\/index.php?rest_route=\/wp\/v2\/posts\/229"}],"collection":[{"href":"https:\/\/blog.kaispace.cn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.kaispace.cn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.kaispace.cn\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.kaispace.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=229"}],"version-history":[{"count":0,"href":"https:\/\/blog.kaispace.cn\/index.php?rest_route=\/wp\/v2\/posts\/229\/revisions"}],"wp:attachment":[{"href":"https:\/\/blog.kaispace.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=229"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.kaispace.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=229"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.kaispace.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=229"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}