{"id":202726,"date":"2025-05-22T08:08:14","date_gmt":"2025-05-22T00:08:14","guid":{"rendered":"https:\/\/server.hk\/cnblog\/202726\/"},"modified":"2025-05-22T08:08:14","modified_gmt":"2025-05-22T00:08:14","slug":"%e6%b5%8b%e8%af%95-java-%e5%87%bd%e6%95%b0%e6%97%b6%e5%ba%94%e8%80%83%e8%99%91%e5%93%aa%e4%ba%9b%e5%9b%a0%e7%b4%a0%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/202726\/","title":{"rendered":"\u6d4b\u8bd5 Java \u51fd\u6570\u65f6\u5e94\u8003\u8651\u54ea\u4e9b\u56e0\u7d20\uff1f"},"content":{"rendered":"<p><b><\/b>     <\/p>\n<h1>\u6d4b\u8bd5 Java \u51fd\u6570\u65f6\u5e94\u8003\u8651\u54ea\u4e9b\u56e0\u7d20\uff1f<\/h1>\n<p>\u5927\u5bb6\u597d\uff0c\u6211\u4eec\u53c8\u89c1\u9762\u4e86\u554a~\u672c\u6587<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u300a\u6d4b\u8bd5 Java \u51fd\u6570\u65f6\u5e94\u8003\u8651\u54ea\u4e9b\u56e0\u7d20\uff1f\u300b<\/span>\u7684\u5185\u5bb9\u4e2d\u5c06\u4f1a\u6d89\u53ca\u5230<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\"><\/span>\u7b49\u7b49\u3002\u5982\u679c\u4f60\u6b63\u5728\u5b66\u4e60<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u6587\u7ae0<\/span>\u76f8\u5173\u77e5\u8bc6\uff0c\u6b22\u8fce\u5173\u6ce8\u6211\uff0c\u4ee5\u540e\u4f1a\u7ed9\u5927\u5bb6\u5e26\u6765\u66f4\u591a<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u6587\u7ae0<\/span>\u76f8\u5173\u6587\u7ae0\uff0c\u5e0c\u671b\u6211\u4eec\u80fd\u4e00\u8d77\u8fdb\u6b65\uff01\u4e0b\u9762\u5c31\u5f00\u59cb\u672c\u6587\u7684\u6b63\u5f0f\u5185\u5bb9~<\/p>\n<p>\u6d4b\u8bd5 Java \u51fd\u6570\u65f6\uff0c\u5e94\u8003\u8651\u7684\u56e0\u7d20\u5305\u62ec\uff1a\u8f93\u5165\u9a8c\u8bc1\uff1a\u786e\u4fdd\u53c2\u6570\u7c7b\u578b\u6b63\u786e\uff0c\u8fdb\u884c\u8303\u56f4\u548c\u683c\u5f0f\u9a8c\u8bc1\u3002\u8f93\u51fa\u9a8c\u8bc1\uff1a\u9a8c\u8bc1\u8fd4\u56de\u503c\u7c7b\u578b\uff0c\u68c0\u67e5\u8303\u56f4\u548c\u683c\u5f0f\u3002\u8fb9\u754c\u60c5\u51b5\u6d4b\u8bd5\uff1a\u6d4b\u8bd5\u51fd\u6570\u5728\u6781\u7aef\u6216\u4e0d\u5bfb\u5e38\u8f93\u5165\u4e0b\u7684\u884c\u4e3a\u3002\u6027\u80fd\u548c\u6548\u7387\u6d4b\u8bd5\uff1a\u6d4b\u91cf\u51fd\u6570\u7684\u6267\u884c\u65f6\u95f4\u548c\u8d44\u6e90\u6d88\u8017\u3002\u7279\u6b8a\u60c5\u51b5\u6d4b\u8bd5\uff1a\u6d4b\u8bd5\u51fd\u6570\u5728\u9884\u671f\u8f93\u5165\u8303\u56f4\u4e4b\u5916\u7684\u60c5\u51b5\u4e0b\u7684\u884c\u4e3a\u3002\u53ef\u9760\u6027\u6d4b\u8bd5\uff1a\u6d4b\u8bd5\u51fd\u6570\u5728\u5e76\u53d1\u6267\u884c\u6216\u591a\u4e2a\u7ebf\u7a0b\u540c\u65f6\u8c03\u7528\u65f6\u7684\u884c\u4e3a\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241026\/1729937004671cbe6c6740c.jpg\" class=\"aligncenter\"><\/p>\n<p><strong>\u6d4b\u8bd5 Java \u51fd\u6570\u65f6\u5e94\u8003\u8651\u7684\u56e0\u7d20<\/strong><\/p>\n<p><strong>1. \u8f93\u5165\u9a8c\u8bc1<\/strong><\/p>\n<ul>\n<li>\u786e\u4fdd\u51fd\u6570\u4f20\u9012\u7684\u53c2\u6570\u7c7b\u578b\u6b63\u786e\u3002<\/li>\n<li>\u5bf9\u8f93\u5165\u503c\u8fdb\u884c\u8303\u56f4\u548c\u683c\u5f0f\u9a8c\u8bc1\uff0c\u9632\u6b62\u975e\u6cd5\u6216\u610f\u5916\u8f93\u5165\u3002<\/li>\n<li>\u4f7f\u7528 <code>@Valid<\/code> \u6ce8\u89e3\u548c\u6821\u9a8c\u6846\u67b6\uff0c\u81ea\u52a8\u6267\u884c\u9a8c\u8bc1\u3002<\/li>\n<\/ul>\n<p><strong>2. \u8f93\u51fa\u9a8c\u8bc1<\/strong><\/p>\n<ul>\n<li>\u9a8c\u8bc1\u51fd\u6570\u8fd4\u56de\u7684\u9884\u671f\u503c\u7c7b\u578b\u3002<\/li>\n<li>\u68c0\u67e5\u8fd4\u56de\u503c\u7684\u8303\u56f4\u5185\u6216\u683c\u5f0f\u662f\u5426\u6b63\u786e\u3002<\/li>\n<li>\u4f7f\u7528\u65ad\u8a00\u6216 <code>assertEquals<\/code> \u7b49\u65b9\u6cd5\u8fdb\u884c\u65ad\u8a00\u3002<\/li>\n<\/ul>\n<p><strong>3. \u8fb9\u754c\u60c5\u51b5<\/strong><\/p>\n<ul>\n<li>\u6d4b\u8bd5\u51fd\u6570\u7684\u884c\u4e3a\uff0c\u5f53\u8f93\u5165\u503c\u8fbe\u5230\u6781\u7aef\u6216\u4e0d\u5bfb\u5e38\u7684\u60c5\u51b5\u4e0b\u3002<\/li>\n<li>\u4f8b\u5982\uff0c\u6d4b\u8bd5\u51fd\u6570\u5728\u7a7a\u503c\u3001\u6700\u5927\u503c\u6216\u6700\u5c0f\u503c\u8f93\u5165\u4e0b\u7684\u884c\u4e3a\u3002<\/li>\n<li>\u4f7f\u7528 <code>@ParameterizedTest<\/code> \u6ce8\u89e3\u548c\u53c2\u6570\u8868\uff0c\u751f\u6210\u591a\u4e2a\u6d4b\u8bd5\u7528\u4f8b\u3002<\/li>\n<\/ul>\n<p><strong>4. \u6027\u80fd\u548c\u6548\u7387<\/strong><\/p>\n<ul>\n<li>\u5bf9\u4e8e\u65f6\u95f4\u6216\u8d44\u6e90\u654f\u611f\u7684\u51fd\u6570\uff0c\u6267\u884c\u6027\u80fd\u6d4b\u8bd5\u3002<\/li>\n<li>\u4f7f\u7528 \u043f\u0440\u043e\u0444\u0438\u043b\u0438\u0440\u043e\u0432\u0449\u0438\u043a \u6216\u57fa\u51c6\u6d4b\u8bd5\u5de5\u5177\uff0c\u6d4b\u91cf\u51fd\u6570\u7684\u6267\u884c\u65f6\u95f4\u548c\u8d44\u6e90\u6d88\u8017\u3002<\/li>\n<li>\u4f18\u5316\u7b97\u6cd5\u548c\u6570\u636e\u7ed3\u6784\uff0c\u4ee5\u63d0\u9ad8\u6027\u80fd\u3002<\/li>\n<\/ul>\n<p><strong>5. \u7279\u6b8a\u60c5\u51b5<\/strong><\/p>\n<ul>\n<li>\u6d4b\u8bd5\u51fd\u6570\u5728\u9884\u671f\u8f93\u5165\u8303\u56f4\u4e4b\u5916\u7684\u7279\u6b8a\u60c5\u51b5\u4e0b\u3002<\/li>\n<li>\u4f8b\u5982\uff0c\u6d4b\u8bd5\u51fd\u6570\u5728\u51fa\u73b0 null \u6307\u9488\u5f02\u5e38\u3001IO \u5f02\u5e38\u0e2b\u0e23\u0e37\u0e2d\u0e2d\u0e37\u0e48\u0e19\u0e46 \u7684\u60c5\u51b5\u4e0b\u7684\u884c\u4e3a\u3002<\/li>\n<li>\u4f7f\u7528\u5f02\u5e38\u5904\u7406\u6846\u67b6\uff0c\u6355\u83b7\u5e76\u5904\u7406\u5f02\u5e38\u3002<\/li>\n<\/ul>\n<p><strong>6. \u53ef\u9760\u6027<\/strong><\/p>\n<ul>\n<li>\u6d4b\u8bd5\u51fd\u6570\u5728\u5e76\u53d1\u6267\u884c\u6216\u591a\u4e2a\u7ebf\u7a0b\u540c\u65f6\u8c03\u7528\u65f6\u7684\u884c\u4e3a\u3002<\/li>\n<li>\u4f7f\u7528\u540c\u6b65\u673a\u5236\uff0c\u9632\u6b62\u6570\u636e\u51b2\u7a81\u548crace condition\u3002<\/li>\n<li>\u4f7f\u7528\u5355\u5143\u6d4b\u8bd5\u6846\u67b6\uff0c\u6267\u884c\u5e76\u884c\u6d4b\u8bd5\u3002<\/li>\n<\/ul>\n<p><strong>\u5b9e\u6218\u6848\u4f8b<\/strong><\/p>\n<p>\u8003\u8651\u4e00\u4e2a\u8ba1\u7b97\u6590\u6ce2\u90a3\u5951\u6570\u5217\u7684 Java \u51fd\u6570\uff1a<\/p>\n<pre>class Fibonacci {\n\n    public int calculate(int n) {\n        if (n == 0 || n == 1) {\n            return 1;\n        } else {\n            return calculate(n - 1) + calculate(n - 2);\n        }\n    }\n}<\/pre>\n<p><strong>\u6d4b\u8bd5\u7528\u4f8b\uff1a<\/strong><\/p>\n<pre>import org.junit.jupiter.api.Test;\nimport static org.junit.jupiter.api.Assertions.*;\n\nclass FibonacciTest {\n\n    @Test\n    void shouldReturn1for0or1() {\n        Fibonacci fib = new Fibonacci();\n        assertEquals(1, fib.calculate(0));\n        assertEquals(1, fib.calculate(1));\n    }\n\n    @Test\n    void shouldCalculateCorrectlyForSpecificNumbers() {\n        Fibonacci fib = new Fibonacci();\n        assertEquals(2, fib.calculate(2));\n        assertEquals(5, fib.calculate(5));\n        assertEquals(13, fib.calculate(7));\n    }\n}<\/pre>\n<p>\u5230\u8fd9\u91cc\uff0c\u6211\u4eec\u4e5f\u5c31\u8bb2\u5b8c\u4e86\u300a\u6d4b\u8bd5 Java \u51fd\u6570\u65f6\u5e94\u8003\u8651\u54ea\u4e9b\u56e0\u7d20\uff1f\u300b\u7684\u5185\u5bb9\u4e86\u3002\u4e2a\u4eba\u8ba4\u4e3a\uff0c\u57fa\u7840\u77e5\u8bc6\u7684\u5b66\u4e60\u548c\u5de9\u56fa\uff0c\u662f\u4e3a\u4e86\u66f4\u597d\u7684\u5c06\u5176\u8fd0\u7528\u5230\u9879\u76ee\u4e2d\uff0c\u6b22\u8fce\u5173\u6ce8\u516c\u4f17\u53f7\uff0c\u5e26\u4f60\u4e86\u89e3\u66f4\u591a\u5173\u4e8ejava,\u6d4b\u8bd5\u7684\u77e5\u8bc6\u70b9\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6d4b\u8bd5 Java \u51fd\u6570\u65f6\u5e94\u8003\u8651\u54ea\u4e9b&#46;&#46;&#46;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4925],"tags":[],"class_list":["post-202726","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/202726","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=202726"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/202726\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=202726"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=202726"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=202726"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}