{"id":237,"date":"2018-09-20T22:32:16","date_gmt":"2018-09-20T14:32:16","guid":{"rendered":"http:\/\/kaispace.cn\/?p=237"},"modified":"2018-09-20T22:32:16","modified_gmt":"2018-09-20T14:32:16","slug":"java%e8%99%9a%e6%8b%9f%e6%9c%ba%e7%ac%94%e8%ae%b0%ef%bc%881%ef%bc%89%e4%b9%8b%e8%99%9a%e6%8b%9f%e6%9c%ba%e5%86%85%e5%ad%98%e7%a9%ba%e9%97%b4","status":"publish","type":"post","link":"https:\/\/blog.kaispace.cn\/?p=237","title":{"rendered":"Java\u865a\u62df\u673a\u7b14\u8bb0\uff081\uff09\u4e4b\u865a\u62df\u673a\u5185\u5b58\u7a7a\u95f4"},"content":{"rendered":"

Java\u865a\u62df\u673a\u4e2d\u7a7a\u95f4\u7ec4\u6210\u5206\u4e3a<\/p>\n

1.\u7a0b\u5e8f\u8ba1\u6570\u5668\u00a02.Java\u865a\u62df\u673a\u6808\u00a0 3.\u672c\u5730\u65b9\u6cd5\u6808 4.Java\u5806 5.\u65b9\u6cd5\u533a<\/span> 6.\u76f4\u63a5\u5185\u5b58<\/span><\/span><\/span><\/span><\/span><\/strong><\/span><\/h3>\n
\n

1\u3001\u7a0b\u5e8f\u8ba1\u6570\u5668<\/h3>\n

\u7a0b\u5e8f\u8ba1\u6570\u5668\u662f\u5c5e\u4e8e\u6bcf\u4e2a\u7ebf\u7a0b\u72ec\u5360<\/span>\u7684\u4e00\u5757\u8f83\u5c0f\u5185\u5b58\u7a7a\u95f4\uff0c\u53ef\u4ee5\u770b\u4f5c\u7ebf\u7a0b\u6240\u6267\u884c\u7684\u5b57\u8282\u7801\u7684\u884c\u53f7\u6307\u793a\u5668\uff0c\u7528\u4e8e\u6539\u53d8\u8ba1\u7b97\u5668\u503c\u6765\u9009\u53d6\u4e0b\u4e00\u6761\u9700\u8981\u6267\u884c\u7684\u5b57\u8282\u7801\u6307\u4ee4\u3002<\/p>\n

\u8fd9\u7c7b\u7ebf\u7a0b\u72ec\u5360<\/span>\u7684\u5185\u5b58\u533a\u57df\u6210\u4e3a\u201c\u7ebf\u7a0b\u72ec\u6709\u201d\uff0c\u540c\u6837\u7ebf\u7a0b\u72ec\u5360\u7684\u8fd8\u6709Java\u865a\u62df\u673a\u6808<\/span><\/p>\n

Java\u65b9\u6cd5\u5728\u8ba1\u6570\u5668\u4e2d\u662f\u4ee5\u5b57\u8282\u7801\u6307\u4ee4\u5730\u5740\u7684\u5f62\u5f0f\u5b58\u5728\uff0c\u800cNative\u65b9\u6cd5\u5219\u4ee5\u7a7a\u7684\u5f62\u5f0f\u5b58\u5728\u3002<\/p>\n

\u7a0b\u5e8f\u8ba1\u6570\u5668\u662f\u552f\u4e00\u4e00\u4e2a\u5728Java\u865a\u62df\u673a\u89c4\u8303\u4e2d\u6ca1\u6709\u89c4\u5b9a\u4efb\u4f55OutOfMemoryError(OOM)\u7684\u5185\u5b58\u533a\u57df\u3002<\/p><\/blockquote>\n

\n

2\u3001Java\u865a\u62df\u673a\u6808<\/h3>\n

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Java\u865a\u62df\u673a\u6808\u7531 1.\u5c40\u90e8\u53d8\u91cf\u8868 2.\u64cd\u4f5c\u6570\u6808 3.\u52a8\u6001\u94fe\u63a5 \u4e09\u90e8\u5206\u7ec4\u6210\u3002\u5e38\u89c1\u6240\u8bf4\u7684\u5b58\u653e\u5c40\u90e8\u53d8\u91cf\u7684\u6808\u6307\u7684\u7684\u5c31\u662fJava\u865a\u62df\u673a\u6808\u4e2d\u7684\u5c40\u90e8\u53d8\u91cf\u8868\u3002<\/p>\n

Java\u865a\u62df\u673a\u6808\u662f\u5b58\u5728\u4e00\u5b9a\u7684\u6df1\u5ea6\u9650\u5236\uff0c\u5f53\u8d85\u51fa\u9650\u5236\u65f6\u4f1a\u89e6\u53d1StackOverFlowError\u5f02\u5e38\u3002<\/p>\n

\u800c\u5f53Java\u865a\u62df\u673a\u6808\u65e0\u6cd5\u7533\u8bf7\u5230\u5185\u5b58\u65f6\uff0c\u5219\u4f1a\u629b\u51faOOM\u5f02\u5e38\u3002<\/p><\/blockquote>\n

\n

3\u3001\u672c\u5730\u65b9\u6cd5\u6808<\/h3>\n

\u672c\u5730\u65b9\u6cd5\u6808\u662f\u4e0d\u540c\u4e0eJava\u865a\u62df\u673a\u6808\u670d\u52a1\u4e8eJava\u65b9\u6cd5\uff0c\u672c\u5730\u65b9\u6cd5\u6808\u662f\u670d\u52a1\u4e8eJava\u865a\u62df\u673a\u4e2d\u7684Native\u65b9\u6cd5\uff0c\u5176\u6784\u9020\u53ca\u529f\u80fd\u7c7b\u4f3c\u4e8eJava\u865a\u62df\u673a\u6808\u3002<\/p><\/blockquote>\n

\n

4\u3001Java\u5806<\/h3>\n

Java\u5806\u662f\u865a\u62df\u673a\u6240\u7ba1\u7406\u7684\u6700\u5927\u5185\u5b58\u7684\uff0c\u5c5e\u4e8e\u6240\u6709\u7ebf\u7a0b\u5171\u4eab<\/span>\u7684\u4e00\u5757\u533a\u57df\uff0c\u5728\u865a\u62df\u673a\u542f\u52a8\u65f6\u521b\u5efa\uff0c\u6240\u6709\u7684\u5bf9\u8c61\u5b9e\u4f8b\u4ee5\u53ca\u6570\u7ec4\u5728\u5806\u4e0a\u5206\u914d<\/del>(\u73b0\u5728\u800c\u8a00\u662f\u4e0d\u4e00\u5b9a\u7684\uff0c\u56e0\u4e3a\u6709\u4e86\u53d1\u5c55\u4e0e\u9003\u9038\u5206\u6790\u6280\u672f\u3001\u6808\u4e0a\u5206\u914d\u3001\u6807\u91cf\u66ff\u6362\u4f18\u5316\u6280\u672f)<\/p>\n

\u540c\u65f6Java\u5806\u4e5f\u662fGC\u56de\u6536\u7684\u4e3b\u8981\u5de5\u4f5c\u533a\u57df\u3002<\/p><\/blockquote>\n

\n

5\u3001\u65b9\u6cd5\u533a<\/h3>\n

\u65b9\u6cd5\u533a\u5728Java\u865a\u62df\u673a\u5b98\u65b9\u89c4\u8303\u4e2d\u79f0\u4e3a\u5806\u7684\u4e00\u4e2a\u903b\u8f91\u90e8\u5206\uff0c\u4f46\u4e3a\u4e86\u4e0e\u5806\u505a\u51fa\u533a\u522b\uff0c\u5c06\u65b9\u6cd5\u533a\u79f0\u4e3aNon-heap\uff08\u975e\u5806\uff09\u3002<\/span><\/span><\/p>\n

\u65b9\u6cd5\u533a\u4e0e\u5806\u4e00\u6837\uff0c\u90fd\u662f\u5c5e\u4e8e\u6240\u4ee5\u7ebf\u7a0b\u5171\u4eab\u7684\u4e00\u5757\u5185\u5b58\u533a\u57df\u3002<\/span><\/span><\/p>\n

\u7528\u4e8e\u5b58\u653e\u5df2\u88ab\u865a\u62df\u673a\u52a0\u8f7d\u7684\u7c7b\u4fe1\u606f\u3001\u5e38\u91cf\u3001\u9759\u6001\u53d8\u91cf\u3001\u5373\u65f6\u7f16\u8bd1\u5668\u7f16\u8bd1\u7684\u4ee3\u7801\u7b49\u3002<\/span><\/span><\/p>\n

GC\u53ef\u4ee5\u5de5\u4f5c\u4f46\u96be\u4ee5\u5de5\u4f5c\u7684\u533a\u57df\uff08\u56e0\u4e3a\u5747\u4e3a\u5e38\u91cf\uff1f\uff09<\/p><\/blockquote>\n

5.1\u3001\u8fd0\u884c\u65f6\u5e38\u91cf\u6c60<\/span><\/span><\/h3>\n

\u65b9\u6cd5\u533a\u7684\u4e00\u90e8\u5206\uff0c\u662f\u7c7b\u52a0\u8f7d\u540e\u5b58\u653e\u7c7b\u7f16\u8bd1\u671f\u751f\u6210\u7684\u5404\u79cd\u5b57\u9762\u91cf\u548c\u5f15\u7528\u7684\u5730\u65b9\u3002<\/span><\/span><\/p><\/blockquote>\n

\n

6\u3001\u76f4\u63a5\u5185\u5b58<\/h3>\n

\u76f4\u63a5\u5185\u5b58\u662f\u5c5e\u4e8eNew IO\u7c7b\u4e2d\u8fdb\u884c\u64cd\u4f5c\u7684\u4e00\u7247\u65b0\u7533\u8bf7\u7684\u5185\u5b58\u7a7a\u95f4\uff0c\u901a\u8fc7Java\u5806\u4e2d\u7684DirectByteBuffer\u5bf9\u8c61\u5f15\u7528\u5e76\u4f7f\u7528\u8fd9\u7247\u5185\u5b58\u7a7a\u95f4\u3002<\/p>\n

\u6bd4\u8f83\u7279\u6b8a\u7684\u662f\u8fd9\u7247\u7a7a\u95f4\u5e76\u4e0d\u662f\u865a\u62df\u673a\u8fd0\u884c\u65f6\u6570\u636e\u533a\u7684\u4e00\u90e8\u5206\uff0c\u4e5f\u4e0d\u662fJava\u865a\u62df\u673a\u89c4\u8303\u4e2d\u5b9a\u4e49\u7684\u5185\u5b58\u7a7a\u95f4\uff0c\u662f\u4f7f\u7528Native\u65b9\u6cd5\u76f4\u63a5\u5206\u914d\u5806\u5916\u5185\u5b58\uff0c\u4f46\u8fd9\u7247\u7a7a\u95f4\u540c\u6837\u53ef\u80fd\u4f1a\u51fa\u73b0OOM\u60c5\u51b5\u3002<\/p><\/blockquote>\n

\n

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

Java\u865a\u62df\u673a\u4e2d\u7a7a\u95f4\u7ec4\u6210\u5206\u4e3a 1.\u7a0b\u5e8f\u8ba1\u6570\u5668\u00a02.Java\u865a\u62df\u673a\u6808\u00a0 3.\u672c\u5730\u65b9\u6cd5\u6808 4.Java\u5806 5.\u65b9\u6cd5…<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[2],"tags":[],"_links":{"self":[{"href":"https:\/\/blog.kaispace.cn\/index.php?rest_route=\/wp\/v2\/posts\/237"}],"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=237"}],"version-history":[{"count":0,"href":"https:\/\/blog.kaispace.cn\/index.php?rest_route=\/wp\/v2\/posts\/237\/revisions"}],"wp:attachment":[{"href":"https:\/\/blog.kaispace.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=237"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.kaispace.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=237"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.kaispace.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=237"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}