{"id":31069,"date":"2023-06-17T09:46:07","date_gmt":"2023-02-27T07:12:30","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/java-%e7%bb%84%e5%90%88\/"},"modified":"2025-08-12T22:10:07","modified_gmt":"2025-08-12T14:10:07","slug":"java-%e7%bb%84%e5%90%88","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/java-%e7%bb%84%e5%90%88\/","title":{"rendered":"Java \u7ec4\u5408"},"content":{"rendered":"<h1>\u7b80\u8981\u6982\u62ec\u6211\u5c1d\u8bd5\u4e86Java\u7684\u7ec4\u5408\u6a21\u5f0f\u3002<\/p>\n<p>\u7ed3\u8bba\u662f\uff0c\u51fd\u6570\u5f0f\uff08\u7ec4\u5408\u6a21\u5f0f\uff09\u7684\u4ee3\u7801\u53ef\u8bfb\u6027\u66f4\u9ad8\uff0c\u4f46\u4f1a\u6d88\u8017\u66f4\u591a\u5185\u5b58\u3002\u901f\u5ea6\u51e0\u4e4e\u6ca1\u6709\u4efb\u4f55\u53d8\u5316\u3002<\/p>\n<h2>\u8bf7\u53c2\u8003<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">Combinator Pattern in Java 8<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">Java\u30e9\u30e0\u30c0\u5f0f\uff1a\u30b3\u30f3\u30d3\u30cd\u30fc\u30bf\u30fc\u30d1\u30bf\u30fc\u30f3\u306e\u6539\u5584<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">functional programming<\/ul>\n<h1>\u505a\u6cd5 (zu\u00f2 f\u01ce)<\/p>\n<h2>\u7a0b\u5e8f\u578b<\/p>\n<pre class=\"post-pre\"><code>    <span class=\"kd\">public<\/span> <span class=\"nc\">ValidationResult<\/span> <span class=\"nf\">imperativeValidate<\/span><span class=\"o\">(<\/span><span class=\"nc\">Parson<\/span> <span class=\"n\">parson<\/span><span class=\"o\">)<\/span> <span class=\"o\">{<\/span>\r\n        <span class=\"kt\">var<\/span> <span class=\"n\">result<\/span> <span class=\"o\">=<\/span> <span class=\"nc\">ImperativeValidator<\/span><span class=\"o\">.<\/span><span class=\"na\">isValidName<\/span><span class=\"o\">(<\/span><span class=\"n\">parson<\/span><span class=\"o\">.<\/span><span class=\"na\">getName<\/span><span class=\"o\">());<\/span>\r\n        <span class=\"k\">if<\/span> <span class=\"o\">(<\/span><span class=\"n\">result<\/span> <span class=\"o\">!=<\/span> <span class=\"nc\">ValidationResult<\/span><span class=\"o\">.<\/span><span class=\"na\">SUCCESS<\/span><span class=\"o\">)<\/span> <span class=\"o\">{<\/span>\r\n            <span class=\"k\">return<\/span> <span class=\"n\">result<\/span><span class=\"o\">;<\/span>\r\n        <span class=\"o\">}<\/span>\r\n        <span class=\"n\">result<\/span> <span class=\"o\">=<\/span> <span class=\"nc\">ImperativeValidator<\/span><span class=\"o\">.<\/span><span class=\"na\">isValidAddr<\/span><span class=\"o\">(<\/span><span class=\"n\">parson<\/span><span class=\"o\">.<\/span><span class=\"na\">getAddr<\/span><span class=\"o\">());<\/span>\r\n        <span class=\"k\">if<\/span> <span class=\"o\">(<\/span><span class=\"n\">result<\/span> <span class=\"o\">!=<\/span> <span class=\"nc\">ValidationResult<\/span><span class=\"o\">.<\/span><span class=\"na\">SUCCESS<\/span><span class=\"o\">)<\/span> <span class=\"o\">{<\/span>\r\n            <span class=\"k\">return<\/span> <span class=\"n\">result<\/span><span class=\"o\">;<\/span>\r\n        <span class=\"o\">}<\/span>\r\n        <span class=\"k\">return<\/span> <span class=\"nc\">ImperativeValidator<\/span><span class=\"o\">.<\/span><span class=\"na\">isValidAge<\/span><span class=\"o\">(<\/span><span class=\"n\">parson<\/span><span class=\"o\">.<\/span><span class=\"na\">getAge<\/span><span class=\"o\">());<\/span>\r\n    <span class=\"o\">}<\/span>\r\n<\/code><\/pre>\n<h2>\u7f16\u7a0b\u8bed\u8a00\u4e2d\u7684\u51fd\u6570\u5f0f<\/p>\n<pre class=\"post-pre\"><code>    <span class=\"kd\">public<\/span> <span class=\"nc\">ValidationResult<\/span> <span class=\"nf\">functionalValidate<\/span><span class=\"o\">(<\/span><span class=\"nc\">Parson<\/span> <span class=\"n\">p<\/span><span class=\"o\">)<\/span> <span class=\"o\">{<\/span>\r\n        <span class=\"k\">return<\/span> <span class=\"nc\">CombinatorPatternValidator<\/span><span class=\"o\">.<\/span><span class=\"na\">isValidName<\/span><span class=\"o\">()<\/span>\r\n                <span class=\"o\">.<\/span><span class=\"na\">and<\/span><span class=\"o\">(<\/span><span class=\"n\">isValidAddr<\/span><span class=\"o\">())<\/span>\r\n                <span class=\"o\">.<\/span><span class=\"na\">and<\/span><span class=\"o\">(<\/span><span class=\"n\">isValidAge<\/span><span class=\"o\">())<\/span>\r\n                <span class=\"o\">.<\/span><span class=\"na\">apply<\/span><span class=\"o\">(<\/span><span class=\"n\">p<\/span><span class=\"o\">);<\/span>\r\n    <span class=\"o\">}<\/span>\r\n<\/code><\/pre>\n<h1>\u7ed3\u679c &#8211; ji\u00e9 gu\u01d2<\/p>\n<h2>JVM \u5806\u5185\u5b58\u51fd\u6570\u578b\u7684\u5927\u5c0f\u662f124 KB\uff0c\u800c\u8fc7\u7a0b\u578b\u7684\u5927\u5c0f\u662f66 KB\u3002<\/p>\n<pre class=\"post-pre\"><code>[QUICK PERF] Measured heap allocation (test method thread): 124.14 Kilo bytes (127 120 bytes)\r\n[QUICK PERF] Measured heap allocation (test method thread): 66.49 Kilo bytes (68 088 bytes)\r\n<\/code><\/pre>\n<h2>\u6027\u80fd\u6d4b\u8bd5\u6211\u8bd5\u4e86\u51e0\u6b21\uff0c\u4f46\u7ed3\u679c\u611f\u89c9\u5e76\u6ca1\u6709\u592a\u5927\u7684\u53d8\u5316\uff0c\u51fd\u6570\u5f0f\u7684\u65b9\u5f0f\u7a0d\u5fae\u6162\u4e00\u4e9b\u3002<br \/>\n\uff08\u53ef\u80fd\u662f\u7531\u4e8e\u9a8c\u8bc1\u5185\u5bb9\u7684\u539f\u56e0\uff09<\/p>\n<pre class=\"post-pre\"><code>Benchmark                                   Mode  Cnt       Score      Error  Units\r\nCombinatorPatternBenchmarkTest.functional  thrpt    5  859447.226 \u00b1 5632.616  ops\/s\r\nCombinatorPatternBenchmarkTest.imperative  thrpt    5  865311.952 \u00b1 4481.358  ops\/s\r\n<\/code><\/pre>\n<h1>\u9644\u9304<\/p>\n<h2>\u6574\u4e2a\u4ee3\u7801<\/p>\n<h3>\u6570\u636e<\/p>\n<pre class=\"post-pre\"><code><span class=\"nd\">@AllArgsConstructor<\/span>\r\n<span class=\"nd\">@Data<\/span>\r\n<span class=\"kd\">public<\/span> <span class=\"kd\">class<\/span> <span class=\"nc\">Parson<\/span> <span class=\"o\">{<\/span>\r\n    <span class=\"kd\">private<\/span> <span class=\"nc\">String<\/span> <span class=\"n\">name<\/span><span class=\"o\">;<\/span>\r\n    <span class=\"kd\">private<\/span> <span class=\"kt\">int<\/span> <span class=\"n\">age<\/span><span class=\"o\">;<\/span>\r\n    <span class=\"kd\">private<\/span> <span class=\"nc\">String<\/span> <span class=\"n\">addr<\/span><span class=\"o\">;<\/span>\r\n    <span class=\"kd\">private<\/span> <span class=\"nc\">String<\/span> <span class=\"n\">addr2<\/span><span class=\"o\">;<\/span>\r\n<span class=\"o\">}<\/span>\r\n<\/code><\/pre>\n<h3>\u4ee5\u4e0b\u662f\u82f1\u6587\u53e5\u5b50\u7684\u4e2d\u6587\u91ca\u4e49\uff1a<br \/>\n\u679a\u4e3e<\/p>\n<pre class=\"post-pre\"><code><span class=\"kd\">public<\/span> <span class=\"kd\">enum<\/span> <span class=\"nc\">ValidationResult<\/span> <span class=\"o\">{<\/span>\r\n    <span class=\"no\">SUCCESS<\/span><span class=\"o\">,<\/span>\r\n    <span class=\"no\">HOGE_CANNOT_BE_USED_IN_NAME<\/span><span class=\"o\">,<\/span>\r\n    <span class=\"no\">ADDR_IS_TOO_LONG<\/span><span class=\"o\">,<\/span>\r\n    <span class=\"no\">IS_A_CHILD<\/span><span class=\"o\">,<\/span>\r\n<span class=\"o\">}<\/span>\r\n<\/code><\/pre>\n<h3>\u529e\u7406\u7a0b\u5e8f\u9a8c\u8bc1\u5668<\/p>\n<pre class=\"post-pre\"><code><span class=\"kd\">public<\/span> <span class=\"kd\">class<\/span> <span class=\"nc\">ImperativeValidator<\/span> <span class=\"o\">{<\/span>\r\n    <span class=\"kd\">public<\/span> <span class=\"kd\">static<\/span> <span class=\"nc\">ValidationResult<\/span> <span class=\"nf\">isValidName<\/span><span class=\"o\">(<\/span><span class=\"nc\">String<\/span> <span class=\"n\">name<\/span><span class=\"o\">)<\/span> <span class=\"o\">{<\/span>\r\n        <span class=\"k\">return<\/span> <span class=\"n\">name<\/span><span class=\"o\">.<\/span><span class=\"na\">contains<\/span><span class=\"o\">(<\/span><span class=\"s\">\"hoge\"<\/span><span class=\"o\">)<\/span> <span class=\"o\">?<\/span> <span class=\"no\">HOGE_CANNOT_BE_USED_IN_NAME<\/span> <span class=\"o\">:<\/span> <span class=\"no\">SUCCESS<\/span><span class=\"o\">;<\/span>\r\n    <span class=\"o\">}<\/span>\r\n\r\n    <span class=\"kd\">public<\/span> <span class=\"kd\">static<\/span> <span class=\"nc\">ValidationResult<\/span> <span class=\"nf\">isValidAddr<\/span><span class=\"o\">(<\/span><span class=\"nc\">String<\/span> <span class=\"n\">addr<\/span><span class=\"o\">)<\/span> <span class=\"o\">{<\/span>\r\n        <span class=\"k\">return<\/span> <span class=\"n\">addr<\/span><span class=\"o\">.<\/span><span class=\"na\">length<\/span><span class=\"o\">()<\/span> <span class=\"o\">&gt;<\/span> <span class=\"mi\">100<\/span> <span class=\"o\">?<\/span> <span class=\"no\">ADDR_IS_TOO_LONG<\/span> <span class=\"o\">:<\/span> <span class=\"no\">SUCCESS<\/span><span class=\"o\">;<\/span>\r\n    <span class=\"o\">}<\/span>\r\n\r\n    <span class=\"kd\">public<\/span> <span class=\"kd\">static<\/span> <span class=\"nc\">ValidationResult<\/span> <span class=\"nf\">isValidAge<\/span><span class=\"o\">(<\/span><span class=\"kt\">int<\/span> <span class=\"n\">age<\/span><span class=\"o\">)<\/span> <span class=\"o\">{<\/span>\r\n        <span class=\"k\">return<\/span> <span class=\"n\">age<\/span> <span class=\"o\">&lt;=<\/span> <span class=\"mi\">18<\/span> <span class=\"o\">?<\/span> <span class=\"no\">IS_A_CHILD<\/span> <span class=\"o\">:<\/span> <span class=\"no\">SUCCESS<\/span><span class=\"o\">;<\/span>\r\n    <span class=\"o\">}<\/span>\r\n<span class=\"o\">}<\/span>\r\n<\/code><\/pre>\n<h3>\u51fd\u6570\u5f0f (\u7ec4\u5408\u5668\u6a21\u5f0f) \u9a8c\u8bc1\u5668<\/p>\n<pre class=\"post-pre\"><code><span class=\"kd\">interface<\/span> <span class=\"nc\">CombinatorPatternValidator<\/span> <span class=\"kd\">extends<\/span> <span class=\"nc\">Function<\/span><span class=\"o\">&lt;<\/span><span class=\"nc\">Parson<\/span><span class=\"o\">,<\/span> <span class=\"nc\">ValidationResult<\/span><span class=\"o\">&gt;<\/span> <span class=\"o\">{<\/span>\r\n\r\n    <span class=\"kd\">static<\/span> <span class=\"nc\">CombinatorPatternValidator<\/span> <span class=\"nf\">isValidName<\/span><span class=\"o\">()<\/span> <span class=\"o\">{<\/span>\r\n        <span class=\"k\">return<\/span> <span class=\"n\">p<\/span> <span class=\"o\">-&gt;<\/span> <span class=\"n\">p<\/span><span class=\"o\">.<\/span><span class=\"na\">getName<\/span><span class=\"o\">().<\/span><span class=\"na\">contains<\/span><span class=\"o\">(<\/span><span class=\"s\">\"hoge\"<\/span><span class=\"o\">)<\/span> <span class=\"o\">?<\/span> <span class=\"no\">HOGE_CANNOT_BE_USED_IN_NAME<\/span> <span class=\"o\">:<\/span> <span class=\"no\">SUCCESS<\/span><span class=\"o\">;<\/span>\r\n    <span class=\"o\">}<\/span>\r\n\r\n    <span class=\"kd\">static<\/span> <span class=\"nc\">CombinatorPatternValidator<\/span> <span class=\"nf\">isValidAddr<\/span><span class=\"o\">()<\/span> <span class=\"o\">{<\/span>\r\n        <span class=\"k\">return<\/span> <span class=\"n\">p<\/span> <span class=\"o\">-&gt;<\/span> <span class=\"n\">p<\/span><span class=\"o\">.<\/span><span class=\"na\">getAddr<\/span><span class=\"o\">().<\/span><span class=\"na\">length<\/span><span class=\"o\">()<\/span> <span class=\"o\">&gt;<\/span> <span class=\"mi\">100<\/span> <span class=\"o\">?<\/span> <span class=\"no\">ADDR_IS_TOO_LONG<\/span> <span class=\"o\">:<\/span> <span class=\"no\">SUCCESS<\/span><span class=\"o\">;<\/span>\r\n    <span class=\"o\">}<\/span>\r\n\r\n    <span class=\"kd\">static<\/span> <span class=\"nc\">CombinatorPatternValidator<\/span> <span class=\"nf\">isValidAge<\/span><span class=\"o\">()<\/span> <span class=\"o\">{<\/span>\r\n        <span class=\"k\">return<\/span> <span class=\"n\">p<\/span> <span class=\"o\">-&gt;<\/span> <span class=\"n\">p<\/span><span class=\"o\">.<\/span><span class=\"na\">getAge<\/span><span class=\"o\">()<\/span> <span class=\"o\">&lt;=<\/span> <span class=\"mi\">18<\/span> <span class=\"o\">?<\/span> <span class=\"no\">IS_A_CHILD<\/span> <span class=\"o\">:<\/span> <span class=\"no\">SUCCESS<\/span><span class=\"o\">;<\/span>\r\n    <span class=\"o\">}<\/span>\r\n\r\n    <span class=\"k\">default<\/span> <span class=\"nc\">CombinatorPatternValidator<\/span> <span class=\"nf\">and<\/span><span class=\"o\">(<\/span><span class=\"nc\">CombinatorPatternValidator<\/span> <span class=\"n\">other<\/span><span class=\"o\">)<\/span> <span class=\"o\">{<\/span>\r\n        <span class=\"k\">return<\/span> <span class=\"n\">p<\/span> <span class=\"o\">-&gt;<\/span> <span class=\"o\">{<\/span>\r\n            <span class=\"kt\">var<\/span> <span class=\"n\">result<\/span> <span class=\"o\">=<\/span> <span class=\"k\">this<\/span><span class=\"o\">.<\/span><span class=\"na\">apply<\/span><span class=\"o\">(<\/span><span class=\"n\">p<\/span><span class=\"o\">);<\/span>\r\n            <span class=\"k\">return<\/span> <span class=\"n\">result<\/span><span class=\"o\">.<\/span><span class=\"na\">equals<\/span><span class=\"o\">(<\/span><span class=\"no\">SUCCESS<\/span><span class=\"o\">)<\/span> <span class=\"o\">?<\/span> <span class=\"n\">other<\/span><span class=\"o\">.<\/span><span class=\"na\">apply<\/span><span class=\"o\">(<\/span><span class=\"n\">p<\/span><span class=\"o\">)<\/span> <span class=\"o\">:<\/span> <span class=\"n\">result<\/span><span class=\"o\">;<\/span>\r\n        <span class=\"o\">};<\/span>\r\n    <span class=\"o\">}<\/span>\r\n<span class=\"o\">}<\/span>\r\n<\/code><\/pre>\n<h3>\u9a8c\u8bc1\u670d\u52a1<\/p>\n<pre class=\"post-pre\"><code><span class=\"kd\">public<\/span> <span class=\"kd\">class<\/span> <span class=\"nc\">ValidationService<\/span> <span class=\"o\">{<\/span>\r\n\r\n    <span class=\"kd\">public<\/span> <span class=\"nc\">ValidationResult<\/span> <span class=\"nf\">imperativeValidate<\/span><span class=\"o\">(<\/span><span class=\"nc\">Parson<\/span> <span class=\"n\">parson<\/span><span class=\"o\">)<\/span> <span class=\"o\">{<\/span>\r\n        <span class=\"kt\">var<\/span> <span class=\"n\">result<\/span> <span class=\"o\">=<\/span> <span class=\"nc\">ImperativeValidator<\/span><span class=\"o\">.<\/span><span class=\"na\">isValidName<\/span><span class=\"o\">(<\/span><span class=\"n\">parson<\/span><span class=\"o\">.<\/span><span class=\"na\">getName<\/span><span class=\"o\">());<\/span>\r\n        <span class=\"k\">if<\/span> <span class=\"o\">(<\/span><span class=\"n\">result<\/span> <span class=\"o\">!=<\/span> <span class=\"nc\">ValidationResult<\/span><span class=\"o\">.<\/span><span class=\"na\">SUCCESS<\/span><span class=\"o\">)<\/span> <span class=\"o\">{<\/span>\r\n            <span class=\"k\">return<\/span> <span class=\"n\">result<\/span><span class=\"o\">;<\/span>\r\n        <span class=\"o\">}<\/span>\r\n        <span class=\"n\">result<\/span> <span class=\"o\">=<\/span> <span class=\"nc\">ImperativeValidator<\/span><span class=\"o\">.<\/span><span class=\"na\">isValidAddr<\/span><span class=\"o\">(<\/span><span class=\"n\">parson<\/span><span class=\"o\">.<\/span><span class=\"na\">getAddr<\/span><span class=\"o\">());<\/span>\r\n        <span class=\"k\">if<\/span> <span class=\"o\">(<\/span><span class=\"n\">result<\/span> <span class=\"o\">!=<\/span> <span class=\"nc\">ValidationResult<\/span><span class=\"o\">.<\/span><span class=\"na\">SUCCESS<\/span><span class=\"o\">)<\/span> <span class=\"o\">{<\/span>\r\n            <span class=\"k\">return<\/span> <span class=\"n\">result<\/span><span class=\"o\">;<\/span>\r\n        <span class=\"o\">}<\/span>\r\n        <span class=\"k\">return<\/span> <span class=\"nc\">ImperativeValidator<\/span><span class=\"o\">.<\/span><span class=\"na\">isValidAge<\/span><span class=\"o\">(<\/span><span class=\"n\">parson<\/span><span class=\"o\">.<\/span><span class=\"na\">getAge<\/span><span class=\"o\">());<\/span>\r\n    <span class=\"o\">}<\/span>\r\n\r\n    <span class=\"kd\">public<\/span> <span class=\"nc\">ValidationResult<\/span> <span class=\"nf\">functionalValidate<\/span><span class=\"o\">(<\/span><span class=\"nc\">Parson<\/span> <span class=\"n\">p<\/span><span class=\"o\">)<\/span> <span class=\"o\">{<\/span>\r\n        <span class=\"k\">return<\/span> <span class=\"nc\">CombinatorPatternValidator<\/span><span class=\"o\">.<\/span><span class=\"na\">isValidName<\/span><span class=\"o\">()<\/span>\r\n                <span class=\"o\">.<\/span><span class=\"na\">and<\/span><span class=\"o\">(<\/span><span class=\"n\">isValidAddr<\/span><span class=\"o\">())<\/span>\r\n                <span class=\"o\">.<\/span><span class=\"na\">and<\/span><span class=\"o\">(<\/span><span class=\"n\">isValidAge<\/span><span class=\"o\">())<\/span>\r\n                <span class=\"o\">.<\/span><span class=\"na\">apply<\/span><span class=\"o\">(<\/span><span class=\"n\">p<\/span><span class=\"o\">);<\/span>\r\n    <span class=\"o\">}<\/span>\r\n<span class=\"o\">}<\/span>\r\n<\/code><\/pre>\n<h2>\u6d4b\u8bd5\u4ee3\u7801<\/p>\n<h3>\u5806\u6808\u6d4b\u91cf<br \/>\n\u8bf7\u53c2\u8003Java\u4e2d\u7684\u5806\u5927\u5c0f\u6d4b\u91cfJUnit5\u90e8\u5206\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"nd\">@QuickPerfTest<\/span>\r\n<span class=\"kd\">public<\/span> <span class=\"kd\">class<\/span> <span class=\"nc\">CombinatorPatternTest<\/span> <span class=\"o\">{<\/span>\r\n\r\n    <span class=\"nc\">ValidationService<\/span> <span class=\"n\">service<\/span> <span class=\"o\">=<\/span> <span class=\"k\">new<\/span> <span class=\"nc\">ValidationService<\/span><span class=\"o\">();<\/span>\r\n\r\n    <span class=\"nd\">@MeasureHeapAllocation<\/span>\r\n    <span class=\"nd\">@Test<\/span>\r\n    <span class=\"kt\">void<\/span> <span class=\"nf\">imperative<\/span><span class=\"o\">()<\/span> <span class=\"o\">{<\/span>\r\n        <span class=\"n\">service<\/span><span class=\"o\">.<\/span><span class=\"na\">imperativeValidate<\/span><span class=\"o\">(<\/span><span class=\"n\">create<\/span><span class=\"o\">());<\/span>\r\n    <span class=\"o\">}<\/span>\r\n\r\n    <span class=\"nd\">@MeasureHeapAllocation<\/span>\r\n    <span class=\"nd\">@Test<\/span>\r\n    <span class=\"kt\">void<\/span> <span class=\"nf\">functional<\/span><span class=\"o\">()<\/span> <span class=\"o\">{<\/span>\r\n        <span class=\"n\">service<\/span><span class=\"o\">.<\/span><span class=\"na\">functionalValidate<\/span><span class=\"o\">(<\/span><span class=\"n\">create<\/span><span class=\"o\">());<\/span>\r\n    <span class=\"o\">}<\/span>\r\n\r\n    <span class=\"nc\">Parson<\/span> <span class=\"nf\">create<\/span><span class=\"o\">()<\/span> <span class=\"o\">{<\/span>\r\n        <span class=\"k\">return<\/span> <span class=\"k\">new<\/span> <span class=\"nf\">Parson<\/span><span class=\"o\">(<\/span><span class=\"nc\">RandomStringUtils<\/span><span class=\"o\">.<\/span><span class=\"na\">randomAlphabetic<\/span><span class=\"o\">(<\/span><span class=\"mi\">10<\/span><span class=\"o\">),<\/span> <span class=\"k\">new<\/span> <span class=\"nc\">Random<\/span><span class=\"o\">().<\/span><span class=\"na\">nextInt<\/span><span class=\"o\">(<\/span><span class=\"mi\">100<\/span><span class=\"o\">),<\/span> <span class=\"nc\">RandomStringUtils<\/span><span class=\"o\">.<\/span><span class=\"na\">randomAlphabetic<\/span><span class=\"o\">(<\/span><span class=\"mi\">20<\/span><span class=\"o\">),<\/span> <span class=\"nc\">RandomStringUtils<\/span><span class=\"o\">.<\/span><span class=\"na\">randomAlphabetic<\/span><span class=\"o\">(<\/span><span class=\"mi\">20<\/span><span class=\"o\">));<\/span>\r\n    <span class=\"o\">}<\/span>\r\n<span class=\"o\">}<\/span>\r\n<\/code><\/pre>\n<h3>\u57fa\u51c6\u6d4b\u8bd5<br \/>\n\u53c2\u8003\u306b\u3059\u308bJava\u6027\u80fd\u6e2c\u5b9a\u30d9\u30f3\u30c1\u30de\u30fc\u30af\u306eJUnit5\u7de8\u3092\u4f7f\u7528\u304f\u3060\u3055\u3044\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"nd\">@State<\/span><span class=\"o\">(<\/span><span class=\"n\">value<\/span> <span class=\"o\">=<\/span> <span class=\"nc\">Scope<\/span><span class=\"o\">.<\/span><span class=\"na\">Benchmark<\/span><span class=\"o\">)<\/span>\r\n<span class=\"kd\">public<\/span> <span class=\"kd\">class<\/span> <span class=\"nc\">CombinatorPatternBenchmarkTest<\/span> <span class=\"o\">{<\/span>\r\n\r\n    <span class=\"nc\">ValidationService<\/span> <span class=\"n\">service<\/span> <span class=\"o\">=<\/span> <span class=\"k\">new<\/span> <span class=\"nc\">ValidationService<\/span><span class=\"o\">();<\/span>\r\n\r\n    <span class=\"nd\">@Benchmark<\/span>\r\n    <span class=\"kd\">public<\/span> <span class=\"kt\">void<\/span> <span class=\"nf\">imperative<\/span><span class=\"o\">()<\/span> <span class=\"o\">{<\/span>\r\n        <span class=\"n\">service<\/span><span class=\"o\">.<\/span><span class=\"na\">imperativeValidate<\/span><span class=\"o\">(<\/span><span class=\"n\">create<\/span><span class=\"o\">());<\/span>\r\n    <span class=\"o\">}<\/span>\r\n\r\n    <span class=\"nd\">@Benchmark<\/span>\r\n    <span class=\"kd\">public<\/span> <span class=\"kt\">void<\/span> <span class=\"nf\">functional<\/span><span class=\"o\">()<\/span> <span class=\"o\">{<\/span>\r\n        <span class=\"n\">service<\/span><span class=\"o\">.<\/span><span class=\"na\">functionalValidate<\/span><span class=\"o\">(<\/span><span class=\"n\">create<\/span><span class=\"o\">());<\/span>\r\n    <span class=\"o\">}<\/span>\r\n\r\n    <span class=\"nd\">@Test<\/span>\r\n    <span class=\"kt\">void<\/span> <span class=\"nf\">benchMark<\/span><span class=\"o\">()<\/span> <span class=\"kd\">throws<\/span> <span class=\"nc\">RunnerException<\/span> <span class=\"o\">{<\/span>\r\n        <span class=\"nc\">Options<\/span> <span class=\"n\">opt<\/span> <span class=\"o\">=<\/span> <span class=\"k\">new<\/span> <span class=\"nc\">OptionsBuilder<\/span><span class=\"o\">()<\/span>\r\n                <span class=\"o\">.<\/span><span class=\"na\">include<\/span><span class=\"o\">(<\/span><span class=\"nc\">CombinatorPatternBenchmarkTest<\/span><span class=\"o\">.<\/span><span class=\"na\">class<\/span><span class=\"o\">.<\/span><span class=\"na\">getSimpleName<\/span><span class=\"o\">())<\/span>\r\n                <span class=\"o\">.<\/span><span class=\"na\">forks<\/span><span class=\"o\">(<\/span><span class=\"mi\">1<\/span><span class=\"o\">)<\/span> <span class=\"c1\">\/\/ 1\u56de\u5b9f\u884c<\/span>\r\n                <span class=\"o\">.<\/span><span class=\"na\">warmupIterations<\/span><span class=\"o\">(<\/span><span class=\"mi\">1<\/span><span class=\"o\">)<\/span> <span class=\"c1\">\/\/ 1\u56de\u7e70\u308a\u8fd4\u3057<\/span>\r\n                <span class=\"o\">.<\/span><span class=\"na\">build<\/span><span class=\"o\">();<\/span>\r\n        <span class=\"k\">new<\/span> <span class=\"nf\">Runner<\/span><span class=\"o\">(<\/span><span class=\"n\">opt<\/span><span class=\"o\">).<\/span><span class=\"na\">run<\/span><span class=\"o\">();<\/span>\r\n    <span class=\"o\">}<\/span>\r\n\r\n    <span class=\"nc\">Parson<\/span> <span class=\"nf\">create<\/span><span class=\"o\">()<\/span> <span class=\"o\">{<\/span>\r\n        <span class=\"k\">return<\/span> <span class=\"k\">new<\/span> <span class=\"nf\">Parson<\/span><span class=\"o\">(<\/span><span class=\"nc\">RandomStringUtils<\/span><span class=\"o\">.<\/span><span class=\"na\">randomAlphabetic<\/span><span class=\"o\">(<\/span><span class=\"mi\">10<\/span><span class=\"o\">),<\/span> <span class=\"k\">new<\/span> <span class=\"nc\">Random<\/span><span class=\"o\">().<\/span><span class=\"na\">nextInt<\/span><span class=\"o\">(<\/span><span class=\"mi\">100<\/span><span class=\"o\">),<\/span> <span class=\"nc\">RandomStringUtils<\/span><span class=\"o\">.<\/span><span class=\"na\">randomAlphabetic<\/span><span class=\"o\">(<\/span><span class=\"mi\">20<\/span><span class=\"o\">),<\/span> <span class=\"nc\">RandomStringUtils<\/span><span class=\"o\">.<\/span><span class=\"na\">randomAlphabetic<\/span><span class=\"o\">(<\/span><span class=\"mi\">20<\/span><span class=\"o\">));<\/span>\r\n    <span class=\"o\">}<\/span>\r\n<span class=\"o\">}<\/span>\r\n<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"<p>\u7b80\u8981\u6982\u62ec\u6211\u5c1d\u8bd5\u4e86Java\u7684\u7ec4\u5408\u6a21\u5f0f\u3002 \u7ed3\u8bba\u662f\uff0c\u51fd\u6570\u5f0f\uff08\u7ec4\u5408\u6a21\u5f0f\uff09\u7684\u4ee3\u7801\u53ef\u8bfb\u6027\u66f4\u9ad8\uff0c\u4f46\u4f1a\u6d88\u8017\u66f4\u591a\u5185\u5b58\u3002\u901f\u5ea6\u51e0\u4e4e\u6ca1 [&hellip;]<\/p>\n","protected":false},"author":8,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[227],"class_list":["post-31069","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-227"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.5 (Yoast SEO v21.5) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Java \u7ec4\u5408 - Blog - Silicon Cloud<\/title>\n<meta name=\"description\" content=\"\u5173\u4e8eJava \u7ec4\u5408\u7684\u6280\u672f\u6587\u7ae0\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.silicloud.com\/zh\/blog\/java-\u7ec4\u5408\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Java \u7ec4\u5408\" \/>\n<meta property=\"og:description\" content=\"\u5173\u4e8eJava \u7ec4\u5408\u7684\u6280\u672f\u6587\u7ae0\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.silicloud.com\/zh\/blog\/java-\u7ec4\u5408\/\" \/>\n<meta property=\"og:site_name\" content=\"Blog - Silicon Cloud\" \/>\n<meta property=\"article:published_time\" content=\"2023-02-27T07:12:30+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-08-12T14:10:07+00:00\" \/>\n<meta name=\"author\" content=\"\u96c5, \u609f\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u4f5c\u8005\" \/>\n\t<meta name=\"twitter:data1\" content=\"\u96c5, \u609f\" \/>\n\t<meta name=\"twitter:label2\" content=\"\u9884\u8ba1\u9605\u8bfb\u65f6\u95f4\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 \u5206\" \/>\n<script type=\"application\/ld+json\" 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