{"id":88855,"date":"2019-07-24T20:42:12","date_gmt":"2019-07-24T12:42:12","guid":{"rendered":"http:\/\/4563.org\/?p=88855"},"modified":"2019-07-24T20:42:12","modified_gmt":"2019-07-24T12:42:12","slug":"java-%e9%97%ae%e9%a2%98-%e5%87%bd%e6%95%b0%e8%bf%90%e8%a1%8c%e8%80%97%e6%97%b6-%e6%96%87%e4%bb%b6%e6%b5%81%e5%8e%8b%e7%bc%a9","status":"publish","type":"post","link":"http:\/\/4563.org\/?p=88855","title":{"rendered":"Java \u95ee\u9898 [\u51fd\u6570\u8fd0\u884c\u8017\u65f6] [\u6587\u4ef6\u6d41\u538b\u7f29]"},"content":{"rendered":"
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Java \u95ee\u9898 [\u51fd\u6570\u8fd0\u884c\u8017\u65f6] [\u6587\u4ef6\u6d41\u538b\u7f29] <\/h1>\n

<\/p>\n

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\u8cc7\u6df1\u5927\u4f6c : BacGa <\/span> <\/i> 62<\/span> <\/div>\n
<\/div>\n<\/p><\/div>\n<\/p><\/div>\n<\/p><\/div>\n
<\/p>\n

1.\u5bf9\u51fd\u6570\u8fd0\u884c\u8017\u65f6\u8ba1\u7b97\uff0c\u9664\u4e86 long begin\/end = System.nanoTime();\u8fd9\u79cd\u65b9\u6848 \u8fd8\u6709\u5176\u4ed6\u901a\u7528\u9ad8\u6548\u7684\u8f6e\u5b50\u5417<\/h2>\n

2.\u6587\u4ef6\u538b\u7f29\u80fd\u4e0d\u80fd\u53ea\u7ecf\u5386 io \u6d41\u7684\u8f6c\u6362\u800c\u4e0d\u9700\u751f\u6210\u4e2d\u95f4\u6587\u4ef6\u843d\u5730\uff0c\u76f4\u63a5\u4ece fileinputstream \u8f6c\u6210 zipoutputstream<\/h2>\n<\/p><\/div>\n
\u5927\u4f6c\u6709\u8a71\u8aaa<\/b> (9<\/span>) <\/div>\n
<\/div>\n<\/p><\/div>\n<\/p><\/div>\n
    \n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : wysnylc <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    1,\u83b7\u53d6\u5f53\u524d\u6267\u884c\u65f6\u95f4\u5df2\u7ecf\u662f\u6700\u7b80\u5355\u7684\u4e86,\u8fd8\u8981\u5565\u8f6e\u5b50?
    2,\u7b2c\u4e8c\u4e2a\u6211\u5f04\u8fc7\u7c7b\u4f3c\u7684,\u6587\u4ef6\u6d41\u53ef\u4ee5\u4e92\u76f8\u8f6c\u6362\u4e0d\u9700\u8981\u5199\u5165\u78c1\u76d8 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
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    \u4e3b<\/span> \u8cc7\u6df1\u5927\u4f6c : BacGa <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    @wysnylc \u5927\u5e08\u5144 \u6587\u4ef6\u6d41\u7684\u5199\u6cd5\u80fd\u7ed9\u770b\u770b\u561b <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : wysnylc <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \"Java <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
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    \u8cc7\u6df1\u5927\u4f6c : alvinbone88 <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u7b2c\u4e00\u4e2a\u95ee\u9898\uff0cJava Microbenchmark Harness <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
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    \u8cc7\u6df1\u5927\u4f6c : luozic <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    jmh \u57fa\u4e8e\u6ce8\u89e3 \u53ef\u4ee5\u5199\u5230\u6d4b\u8bd5\u7c7b\u91cc\u9762 \u901a\u8fc7\u547d\u4ee4\u8dd1\u3002 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u4e3b<\/span> \u8cc7\u6df1\u5927\u4f6c : BacGa <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    @alvinbone88
    @luozic \u611f\u8c22
    @wysnylc \u5e08\u5144 \u56fe\u6302\u4e86 \u6211 vx bacga_void_man \ud83d\ude42 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
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    \u8cc7\u6df1\u5927\u4f6c : xiangyuecn <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u4e0d\u77e5\u9053 ByteArrayInputStream ByteArrayOutputStream \u6709\u6ca1\u6709\u7528\uff0cC#\u91cc\u9762\u662f MemoryStream\uff0c\u53cd\u800c\u89c9\u5f97 Memory \u6bd4 ByteArray \u597d\u8bb0 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
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    \u8cc7\u6df1\u5927\u4f6c : guyeu <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    1. guava \u6709\u8ba1\u65f6\u5de5\u5177\u5305 Stopwatch \uff1b
    2. new ZipOutputStream(new FileOutputStream(out))\uff0c\u76f4\u63a5\u8f93\u51fa\u538b\u7f29\u6587\u4ef6\uff0c\u672c\u6765\u5c31\u4e0d\u9700\u8981\u4e2d\u95f4\u843d\u4e00\u6b21\u5730\u3002 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
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    \u8cc7\u6df1\u5927\u4f6c : itning <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    JMH \u4e86\u89e3\u4e0b
    “`xml
    <!– JMH–>
    <dependency>
    <groupId>org.openjdk.jmh<\/groupId>
    <artifactId>jmh-core<\/artifactId>
    <version>${jmh.version}<\/version>
    <\/dependency>
    <dependency>
    <groupId>org.openjdk.jmh<\/groupId>
    <artifactId>jmh-generator-annprocess<\/artifactId>
    <version>${jmh.version}<\/version>
    <scope>provided<\/scope>
    <\/dependency>
    “` <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n","protected":false},"excerpt":{"rendered":"

    Java \u95ee\u9898 [\u51fd\u6570\u8fd0\u884c\u8017\u65f6] …<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[],"tags":[],"_links":{"self":[{"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts\/88855"}],"collection":[{"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=88855"}],"version-history":[{"count":0,"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts\/88855\/revisions"}],"wp:attachment":[{"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=88855"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=88855"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=88855"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}