Volatile<\/p>\n
\u7b80\u5355\u6765\u8bf4\uff0cvolatile\u4fdd\u5b58\u5185\u5b58\u53ef\u89c1\u6027\u3002
\n\u9632\u6b62\u6307\u4ee4\u91cd\u6392\u5e8f\uff1a\u8bb2\u4eba\u8bdd\u5c31\u662f\u9632\u6b62\u7f16\u8bd1\u540ejava\u4f1a\u6309\u7167\u4e00\u5b9a\u89c4\u5219\u548c\u628a\u6307\u4ee4\u91cd\u65b0\u6392\u5e8f\u4f18\u5316\u6267\u884c
\n\u5f3a\u5236\u8bfb\u4e3b\u5b58\uff1a\u8bb2\u4eba\u8bdd\u5c31\u662fjvm\u865a\u62df\u673a\u4f1a\u6709\u7ebf\u7a0b\u5185\u5b58\u526f\u672c,\u7ebf\u7a0b\u95f4\u7684\u5171\u4eab\u53d8\u91cf\u53ef\u80fd\u65e0\u6cd5\u5bdf\u89c9\u5bf9 \u65b9\u7684\u53d8\u5316.
\n1\u3001\t\u7ebf\u7a0b\u4e00\u548c\u4e8c\u4ece\u4e3b\u5185\u5b58\u4e2d\u590d\u5236flag\u5230\u81ea\u5df1\u7684\u5de5\u4f5c\u5185\u5b58\u3002
\n2\u3001\t\u5f53\u7ebf\u7a0b\u4e00\u4fee\u6539flag\u7684\u503c\uff0c\u7ebf\u7a0b\u4e8c\u5e76\u4e0d\u4f1a\u7acb\u5373\u4ece\u4e3b\u5185\u5b58\u4e2d\u8bfb\u53d6flag\u7684\u503c\uff0c\u6240\u4ee5\u5728\u7ebf\u7a0b\u4e8c\u7684
\n\u5de5\u4f5c\u5185\u5b58\u4e2d\uff0cflag\u4f9d\u7136\u4e3afalse\u00bb
\n3\u3001\t\u4f7f\u7528volatile\u5173\u952e\u5b57\uff0c\u544a\u793aJVM\u6b64\u53d8\u91cf\u662f\u4e0d\u7a33\u5b9a\u7684\uff0c\u6bcf\u6b21\u4f7f\u7528\u5b83\u90fd\u8981\u5230\u4e3b\u5185\u5b58\u4e2d\u8bfb\u53d6\u3002
\n4\u3001\t\u9664\u4e86\u4fdd\u8bc1\u5185\u5b58\u53ef\u89c1\u6027\uff0cvolatile\u8fd8\u80fd\u9632\u6b62\u6307\u4ee4\u91cd\u6392\u5e8f\uff0c\u4f46\u5e76\u4e0d\u80fd\u4fdd\u8bc1\u539f\u5b50\u6027\u3002
\nAtomic
\nvolatile\u662fJava\u63d0\u4f9b\u7684\u4e00\u79cd\u8f7b\u91cf\u7ea7\u7684\u540c\u6b65\u673a\u5236\uff0c\u5728\u5e76\u53d1\u7f16\u7a0b\u4e2d\uff0c\u5b83\u4e5f\u626e\u6f14\u7740\u6bd4\u8f83\u91cd\u8981\u7684\u89d2\u8272\u3002
\n\u540csynchronized\u76f8\u6bd4(synchronized\u901a\u5e38\u79f0\u4e3a\u91cd\u91cf\u7ea7\u9501)\uff0cvolatile\u66f4\u8f7b\u91cf\u7ea7\uff0c\u76f8\u6bd4\u4f7f\u7528
\nsynchronized\u6240\u5e26\u6765\u7684\u5e9e\u5927\u5f00\u9500\uff0c\u5018\u82e5\u80fd\u6070\u5f53\u7684\u5408\u7406\u7684\u4f7f\u7528volatile,\u81ea\u7136\u662f\u7f8e\u4e8b\u4e00\u6869\u3002
\n\u539f\u5b50\u6027\uff1a\u4e0d\u53ef\u5206\u5272\u3002\u591a\u7ebf\u7a0b\u60c5\u51b5\u4e0b\uff0c\u4e00\u4e2a\u64cd\u4f5c\u4e00\u65e6\u5f00\u59cb\u5c31\u4e0d\u4f1a\u88ab\u5176\u4ed6\u7ebf\u7a0b\u5e72\u6270\u3002
\nAtomic\u901a\u8fc7CAS (Compare And Swap)\u4fdd\u8bc1\u539f\u5b50\u6027\uff0c\u7531\u4e8e\u6ca1\u6709\u963b\u585e\u3001\u4e0a\u4e0b\u6587\u5207\u6362\uff0c\u6027\u80fd\u76f8\u8f83\u4e8e
\nSyn\u8f83\u9ad8\u3002
\nAtomic\u7684\u51e0\u79cd\u7c7b\u578b\uff1a
\n\u57fa\u672c\u7c7b\u578b
\n\u4f7f\u7528\u539f\u5b50\u7684\u65b9\u5f0f\u66f4\u65b0\u57fa\u672c\u7c7b\u578b
\nAtomicInteger:\u6574\u5f62\u539f\u5b50\u7c7b
\nAtomicLong:\u957f\u6574\u578b\u539f\u5b50\u7c7b
\nAtomicBoolean:\u5e03\u5c14\u578b\u539f\u5b50\u7c7b
\n\u6570\u7ec4\u7c7b\u578b
\n\u4f7f\u7528\u539f\u5b50\u7684\u65b9\u5f0f\u66f4\u65b0\u6570\u7ec4\u91cc\u7684\u67d0\u4e2a\u5143\u7d20
\nAtomicIntegerArray\uff1a\u6574\u5f62\u6570\u7ec4\u539f\u5b50\u7c7b
\nAtomicLongArray:\u957f\u6574\u5f62\u6570\u7ec4\u539f\u5b50\u7c7b
\nAtomicReferenceArray:\u5f15\u7528\u7c7b\u578b\u6570\u7ec4\u539f\u5b50\u7c7b
\n\u5f15\u7528\u7c7b\u578b
\nAtomicReference:\u5f15\u7528\u7c7b\u578b\u539f\u5b50\u7c7b
\nAtomicStampedReference:\u539f\u5b50\u66f4\u65b0\u5f15\u7528\u7c7b\u578b\u91cc\u7684\u5b57\u6bb5\u539f\u5b50\u7c7b
\nAtomicMarkab1eReference :\u539f\u5b50\u66f4\u65b0\u5e26\u6709\u6807\u8bb0\u4f4d\u7684\u5f15\u7528\u7c7b\u578b
\n\u5bf9\u8c61\u7684\u5c5e\u6027\u4fee\u6539\u7c7b\u578b
\nAtomicIntegerFieldUpdater:\u539f\u5b50\u66f4\u65b0\u6574\u5f62\u5b57\u6bb5\u7684\u66f4\u65b0\u5668
\nAtomicLongFieldUpdater:\u539f\u5b50\u66f4\u65b0\u957f\u6574\u5f62\u5b57\u6bb5\u7684\u66f4\u65b0\u5668
\nAtomicStampedReference:\u539f\u5b50\u66f4\u65b0\u5e26\u6709\u7248\u672c\u53f7\u7684\u5f15\u7528\u7c7b\u578b\u3002\u8be5\u7c7b\u5c06\u6574\u6570\u503c\u4e0e\u5f15\u7528\u5173\u8054\u8d77\u6765, \u53ef\u7528\u4e8e\u89e3\u51b3\u539f\u5b50\u7684\u66f4\u65b0\u6570\u636e\u548c\u6570\u636e\u7684\u7248\u672c\u53f7\uff0c\u53ef\u4ee5\u89e3\u51b3\u4f7f\u7528CAS\u8fdb\u884c\u539f\u5b50\u66f4\u65b0\u65f6\u53ef\u80fd\u51fa\u73b0\u7684 ABA\u95ee\u9898\u3002
\n\u4f7f\u7528 volatile \u548c Atomiclnteger \u7684\u5bf9\u6bd4\uff1a<\/p>\n","protected":false},"excerpt":{"rendered":"
Volatile \u7b80\u5355\u6765\u8bf4\uff0cvolatile\u4fdd\u5b58\u5185\u5b58\u53ef\u89c1\u6027\u3002 \u9632\u6b62\u6307\u4ee4\u91cd\u6392\u5e8f\uff1a\u8bb2\u4eba\u8bdd\u5c31\u662f\u9632\u6b62\u7f16\u8bd1\u540ejava\u4f1a\u6309 […]<\/p>\n","protected":false},"author":7,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[118],"tags":[],"class_list":["post-9677","post","type-post","status-publish","format-standard","hentry","category-java"],"_links":{"self":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/9677","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/users\/7"}],"replies":[{"embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/comments?post=9677"}],"version-history":[{"count":1,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/9677\/revisions"}],"predecessor-version":[{"id":9678,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/9677\/revisions\/9678"}],"wp:attachment":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/media?parent=9677"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/categories?post=9677"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/tags?post=9677"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}