{"id":202965,"date":"2025-05-22T12:29:56","date_gmt":"2025-05-22T04:29:56","guid":{"rendered":"https:\/\/server.hk\/cnblog\/202965\/"},"modified":"2025-05-22T12:29:56","modified_gmt":"2025-05-22T04:29:56","slug":"java%e5%87%bd%e6%95%b0%e5%bc%8f%e7%bc%96%e7%a8%8b%e5%9c%a8%e6%95%b0%e6%8d%ae%e5%a4%84%e7%90%86%e4%b8%ad%e5%a6%82%e4%bd%95%e6%8f%90%e5%8d%87%e4%bb%a3%e7%a0%81%e5%8f%af%e8%af%bb%e6%80%a7%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/202965\/","title":{"rendered":"Java\u51fd\u6570\u5f0f\u7f16\u7a0b\u5728\u6570\u636e\u5904\u7406\u4e2d\u5982\u4f55\u63d0\u5347\u4ee3\u7801\u53ef\u8bfb\u6027\uff1f"},"content":{"rendered":"

<\/b> <\/p>\n

Java\u51fd\u6570\u5f0f\u7f16\u7a0b\u5728\u6570\u636e\u5904\u7406\u4e2d\u5982\u4f55\u63d0\u5347\u4ee3\u7801\u53ef\u8bfb\u6027\uff1f<\/h1>\n

\u54c8\u55bd\uff01\u5927\u5bb6\u597d\uff0c\u5f88\u9ad8\u5174\u53c8\u89c1\u9762\u4e86\uff0c\u6211\u662f\u7684\u4e00\u540d\u4f5c\u8005\uff0c\u4eca\u5929\u7531\u6211\u7ed9\u5927\u5bb6\u5e26\u6765\u4e00\u7bc7\u300aJava\u51fd\u6570\u5f0f\u7f16\u7a0b\u5728\u6570\u636e\u5904\u7406\u4e2d\u5982\u4f55\u63d0\u5347\u4ee3\u7801\u53ef\u8bfb\u6027\uff1f\u300b<\/span>\uff0c\u672c\u6587\u4e3b\u8981\u4f1a\u8bb2\u5230<\/span>\u7b49\u7b49\u77e5\u8bc6\u70b9\uff0c\u5e0c\u671b\u5927\u5bb6\u4e00\u8d77\u5b66\u4e60\u8fdb\u6b65\uff0c\u4e5f\u6b22\u8fce\u5927\u5bb6\u5173\u6ce8\u3001\u70b9\u8d5e\u3001\u6536\u85cf\u3001\u8f6c\u53d1! \u4e0b\u9762\u5c31\u4e00\u8d77\u6765\u770b\u770b\u5427\uff01<\/p>\n

\u51fd\u6570\u5f0f\u7f16\u7a0b\u901a\u8fc7\u4f7f\u7528\u7eaf\u51fd\u6570\u3001\u4e0d\u53ef\u53d8\u6570\u636e\u7ed3\u6784\u548c\u6d41 API\uff0c\u63d0\u5347\u4e86\u6570\u636e\u5904\u7406\u4ee3\u7801\u7684\u53ef\u8bfb\u6027\u3002\u7eaf\u51fd\u6570\u4e0d\u4f1a\u4fee\u6539\u5916\u90e8\u72b6\u6001\uff0c\u63d0\u9ad8\u4e86\u4ee3\u7801\u53ef\u7406\u89e3\u6027\u3002\u4e0d\u53ef\u53d8\u6570\u636e\u7ed3\u6784\u786e\u4fdd\u6570\u636e\u5b8c\u6574\u6027\u548c\u4e00\u81f4\u6027\uff0c\u7b80\u5316\u4e86\u8c03\u8bd5\u3002\u6d41 API \u63d0\u4f9b\u4e86\u7b80\u6d01\u3001\u53ef\u8bfb\u7684\u6570\u636e\u64cd\u4f5c\u65b9\u6cd5\u3002\u5b9e\u6218\u6848\u4f8b\u4e2d\uff0c\u51fd\u6570\u5f0f\u7f16\u7a0b\u88ab\u7528\u4e8e\u5c06 CSV \u6587\u4ef6\u4e2d\u7684\u5458\u5de5\u6570\u636e\u89e3\u6790\u5230\u6570\u636e\u5e93\uff0c\u5c55\u793a\u4e86\u6613\u4e8e\u7406\u89e3\u548c\u7ef4\u62a4\u7684\u4ee3\u7801\u3002<\/p>\n

<\/p>\n

Java \u51fd\u6570\u5f0f\u7f16\u7a0b\u63d0\u5347\u6570\u636e\u5904\u7406\u53ef\u8bfb\u6027<\/strong><\/p>\n

\u51fd\u6570\u5f0f\u7f16\u7a0b\u662f\u4e00\u79cd\u7f16\u7a0b\u8303\u5f0f\uff0c\u5b83\u5f3a\u8c03\u5c06\u4ee3\u7801\u5efa\u6a21\u4e3a\u7eaf\u51fd\u6570\u548c\u4e0d\u53ef\u53d8\u6570\u636e\u7ed3\u6784\u3002\u5728\u6570\u636e\u5904\u7406\u573a\u666f\u4e2d\uff0c\u51fd\u6570\u5f0f\u7f16\u7a0b\u53ef\u4ee5\u663e\u8457\u63d0\u9ad8\u4ee3\u7801\u53ef\u8bfb\u6027\uff0c\u8ba9\u5f00\u53d1\u8005\u66f4\u5bb9\u6613\u7406\u89e3\u548c\u7ef4\u62a4\u4ee3\u7801\u3002<\/p>\n

\u7eaf\u51fd\u6570<\/strong><\/p>\n

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\u793a\u4f8b\u4ee3\u7801\uff1a<\/p>\n

\/\/ \u8ba1\u7b97\u4e24\u4e2a\u6570\u5b57\u7684\u603b\u548c\npublic int sum(int a, int b) {\n    return a + b;\n}<\/pre>\n
\u4e0d\u53ef\u53d8\u6570\u636e\u7ed3\u6784<\/strong><\/p>\n
\u4e0d\u53ef\u53d8\u6570\u636e\u7ed3\u6784\u4e0d\u5141\u8bb8\u5728\u5176\u521b\u5efa\u540e\u8fdb\u884c\u4fee\u6539\u3002\u8fd9\u79cd\u4e0d\u53d8\u6027\u786e\u4fdd\u4e86\u6570\u636e\u7684\u5b8c\u6574\u6027\u548c\u4e00\u81f4\u6027\uff0c\u540c\u65f6\u7b80\u5316\u4e86\u4ee3\u7801\u7684\u8c03\u8bd5\u3002<\/p>\n
\u793a\u4f8b\u4ee3\u7801\uff1a<\/p>\n
\/\/ \u521b\u5efa\u4e0d\u53ef\u53d8\u5217\u8868\nList<String> names = List.of(\"Alice\", \"Bob\", \"Carol\");<\/pre>\n
\u6d41 API<\/strong><\/p>\n
Java 8 \u5f15\u5165\u4e86\u6d41 API\uff0c\u5b83\u63d0\u4f9b\u4e86\u4e00\u7ec4\u65b9\u6cd5\u6765\u64cd\u4f5c\u96c6\u5408\u5143\u7d20\u7684\u5e8f\u5217\u3002\u6d41 API \u4f7f\u5f97\u6570\u636e\u5904\u7406\u4ee3\u7801\u66f4\u52a0\u7b80\u6d01\u3001\u53ef\u8bfb\u3002<\/p>\n
\u793a\u4f8b\u4ee3\u7801\uff1a<\/p>\n
\/\/ \u8fc7\u6ee4\u96c6\u5408\u4e2d\u7684\u5076\u6570\nList<Integer> evenNumbers = numbers.stream()\n    .filter(number -> number % 2 == 0)\n    .collect(Collectors.toList());<\/pre>\n
\u5b9e\u6218\u6848\u4f8b<\/strong><\/p>\n
\u8003\u8651\u4e00\u4e2a\u5c06\u5458\u5de5\u6570\u636e\u4ece CSV \u6587\u4ef6\u89e3\u6790\u5230\u6570\u636e\u5e93\u7684\u5e94\u7528\u7a0b\u5e8f\u3002\u4f7f\u7528\u51fd\u6570\u5f0f\u7f16\u7a0b\uff0c\u6211\u4eec\u53ef\u4ee5\u7f16\u5199\u6613\u4e8e\u7406\u89e3\u548c\u7ef4\u62a4\u7684\u4ee3\u7801\u3002<\/p>\n
\/\/ \u4f7f\u7528\u6d41 API \u89e3\u6790 CSV \u6587\u4ef6\nList<Employee> employees = Files.lines(Paths.get(\"employees.csv\"))\n    .map(line -> line.split(\",\"))\n    .map(parts -> new Employee(parts[0], parts[1], parts[2]))\n    .collect(Collectors.toList());\n\n\/\/ \u4f7f\u7528\u7eaf\u51fd\u6570\u5c06\u5458\u5de5\u63d2\u5165\u6570\u636e\u5e93\ntry (Connection connection = DriverManager.getConnection(...)) {\n    for (Employee employee : employees) {\n        PreparedStatement statement = connection.prepareStatement(\n            \"INSERT INTO employees (name, email, phone) VALUES (?, ?, ?)\");\n        statement.setString(1, employee.getName());\n        statement.setString(2, employee.getEmail());\n        statement.setString(3, employee.getPhone());\n        statement.execute();\n    }\n}<\/pre>\n
\u7ed3\u8bba<\/strong><\/p>\n
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Java\u51fd\u6570\u5f0f\u7f16\u7a0b\u5728\u6570\u636e\u5904\u7406\u4e2d\u5982...<\/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-202965","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/202965","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=202965"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/202965\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=202965"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=202965"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=202965"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}