{"id":61897,"date":"2024-10-13T14:34:17","date_gmt":"2024-10-13T06:34:17","guid":{"rendered":"https:\/\/server.hk\/cnblog\/61897\/"},"modified":"2024-10-13T14:34:17","modified_gmt":"2024-10-13T06:34:17","slug":"java%e5%b0%8e%e5%87%ba%e6%95%b8%e6%93%9a%e5%ba%ab%e8%85%b3%e6%9c%ac%ef%bc%9a%e5%bf%ab%e9%80%9f%e5%82%99%e4%bb%bd%e6%95%b8%e6%93%9a-java%e5%b0%8e%e5%87%ba%e6%95%b8%e6%93%9a%e5%ba%ab%e8%85%b3%e6%9c%ac","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/61897\/","title":{"rendered":"Java\u5c0e\u51fa\u6578\u64da\u5eab\u8173\u672c\uff1a\u5feb\u901f\u5099\u4efd\u6578\u64da (java\u5c0e\u51fa\u6578\u64da\u5eab\u8173\u672c)"},"content":{"rendered":"<h1 id=\"java%e5%b0%8e%e5%87%ba%e6%95%b8%e6%93%9a%e5%ba%ab%e8%85%b3%e6%9c%ac%ef%bc%9a%e5%bf%ab%e9%80%9f%e5%82%99%e4%bb%bd%e6%95%b8%e6%93%9a-QpjeNTQBkf\">Java\u5c0e\u51fa\u6578\u64da\u5eab\u8173\u672c\uff1a\u5feb\u901f\u5099\u4efd\u6578\u64da<\/h1>\n<p>\u5728\u7576\u4eca\u6578\u64da\u9a45\u52d5\u7684\u4e16\u754c\u4e2d\uff0c\u6578\u64da\u7684\u5b89\u5168\u6027\u548c\u53ef\u7528\u6027\u81f3\u95dc\u91cd\u8981\u3002\u7121\u8ad6\u662f\u4f01\u696d\u9084\u662f\u500b\u4eba\u7528\u6236\uff0c\u5b9a\u671f\u5099\u4efd\u6578\u64da\u90fd\u662f\u4e00\u9805\u5fc5\u8981\u7684\u4efb\u52d9\u3002Java\u4f5c\u70ba\u4e00\u7a2e\u5ee3\u6cdb\u4f7f\u7528\u7684\u7de8\u7a0b\u8a9e\u8a00\uff0c\u63d0\u4f9b\u4e86\u591a\u7a2e\u65b9\u6cd5\u4f86\u5c0e\u51fa\u6578\u64da\u5eab\u4e2d\u7684\u6578\u64da\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u4f7f\u7528Java\u7de8\u5beb\u5c0e\u51fa\u6578\u64da\u5eab\u7684\u8173\u672c\uff0c\u4ee5\u4fbf\u5feb\u901f\u5099\u4efd\u6578\u64da\u3002<\/p>\n<h2 id=\"%e7%82%ba%e4%bb%80%e9%ba%bc%e9%81%b8%e6%93%87java%e9%80%b2%e8%a1%8c%e6%95%b8%e6%93%9a%e5%ba%ab%e5%b0%8e%e5%87%ba-QpjeNTQBkf\">\u70ba\u4ec0\u9ebc\u9078\u64c7Java\u9032\u884c\u6578\u64da\u5eab\u5c0e\u51fa<\/h2>\n<p>Java\u64c1\u6709\u5f37\u5927\u7684\u5eab\u548c\u6846\u67b6\uff0c\u80fd\u5920\u8f15\u9b06\u5730\u8207\u5404\u7a2e\u6578\u64da\u5eab\u9032\u884c\u4ea4\u4e92\u3002\u4f7f\u7528Java\u9032\u884c\u6578\u64da\u5eab\u5c0e\u51fa\u6709\u4ee5\u4e0b\u5e7e\u500b\u512a\u52e2\uff1a<\/p>\n<ul>\n<li><strong>\u8de8\u5e73\u53f0\u6027\uff1a<\/strong>Java\u7684\u201c\u5beb\u4e00\u6b21\uff0c\u8655\u8655\u904b\u884c\u201d\u7279\u6027\u4f7f\u5f97\u5b83\u80fd\u5920\u5728\u4e0d\u540c\u7684\u64cd\u4f5c\u7cfb\u7d71\u4e0a\u904b\u884c\u3002<\/li>\n<li><strong>\u5f37\u5927\u7684\u5eab\u652f\u6301\uff1a<\/strong>Java\u64c1\u6709\u591a\u7a2e\u6578\u64da\u5eab\u9023\u63a5\u5eab\uff0c\u5982JDBC\uff0c\u80fd\u5920\u8f15\u9b06\u5730\u8207MySQL\u3001PostgreSQL\u7b49\u6578\u64da\u5eab\u9032\u884c\u4ea4\u4e92\u3002<\/li>\n<li><strong>\u53ef\u64f4\u5c55\u6027\uff1a<\/strong>Java\u7684\u9762\u5411\u5c0d\u8c61\u7279\u6027\u4f7f\u5f97\u4ee3\u78bc\u6613\u65bc\u7dad\u8b77\u548c\u64f4\u5c55\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%9f%ba%e6%9c%ac%e6%ad%a5%e9%a9%9f-QpjeNTQBkf\">\u57fa\u672c\u6b65\u9a5f<\/h2>\n<p>\u5728\u958b\u59cb\u7de8\u5bebJava\u5c0e\u51fa\u6578\u64da\u5eab\u8173\u672c\u4e4b\u524d\uff0c\u6211\u5011\u9700\u8981\u78ba\u4fdd\u5df2\u7d93\u5b89\u88dd\u4e86Java\u958b\u767c\u74b0\u5883\u548c\u76f8\u61c9\u7684\u6578\u64da\u5eab\u9a45\u52d5\u7a0b\u5e8f\u3002\u4ee5\u4e0b\u662f\u5c0e\u51fa\u6578\u64da\u5eab\u7684\u57fa\u672c\u6b65\u9a5f\uff1a<\/p>\n<ol>\n<li>\u8a2d\u7f6e\u6578\u64da\u5eab\u9023\u63a5\u3002<\/li>\n<li>\u57f7\u884c\u67e5\u8a62\u4ee5\u7372\u53d6\u6578\u64da\u3002<\/li>\n<li>\u5c07\u6578\u64da\u5beb\u5165\u6587\u4ef6\u3002<\/li>\n<\/ol>\n<h2 id=\"%e7%a4%ba%e4%be%8b%e4%bb%a3%e7%a2%bc-QpjeNTQBkf\">\u793a\u4f8b\u4ee3\u78bc<\/h2>\n<p>\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684Java\u4ee3\u78bc\u793a\u4f8b\uff0c\u5c55\u793a\u5982\u4f55\u5c0e\u51faMySQL\u6578\u64da\u5eab\u4e2d\u7684\u6578\u64da\uff1a<\/p>\n<pre><code>\nimport java.sql.Connection;\nimport java.sql.DriverManager;\nimport java.sql.ResultSet;\nimport java.sql.Statement;\nimport java.io.FileWriter;\nimport java.io.IOException;\n\npublic class DatabaseExport {\n    public static void main(String[] args) {\n        String url = \"jdbc:mysql:\/\/localhost:3306\/your_database\";\n        String user = \"your_username\";\n        String password = \"your_password\";\n        String filePath = \"exported_data.csv\";\n\n        try (Connection conn = DriverManager.getConnection(url, user, password);\n             Statement stmt = conn.createStatement();\n             ResultSet rs = stmt.executeQuery(\"SELECT * FROM your_table\");\n             FileWriter csvWriter = new FileWriter(filePath)) {\n\n            \/\/ \u5beb\u5165CSV\u6a19\u984c\n            csvWriter.append(\"Column1,Column2,Column3n\");\n\n            \/\/ \u5beb\u5165\u6578\u64da\n            while (rs.next()) {\n                csvWriter.append(rs.getString(\"Column1\"));\n                csvWriter.append(\",\");\n                csvWriter.append(rs.getString(\"Column2\"));\n                csvWriter.append(\",\");\n                csvWriter.append(rs.getString(\"Column3\"));\n                csvWriter.append(\"n\");\n            }\n\n            System.out.println(\"\u6578\u64da\u6210\u529f\u5c0e\u51fa\u5230 \" + filePath);\n        } catch (Exception e) {\n            e.printStackTrace();\n        }\n    }\n}\n<\/code><\/pre>\n<h2 id=\"%e6%b3%a8%e6%84%8f%e4%ba%8b%e9%a0%85-QpjeNTQBkf\">\u6ce8\u610f\u4e8b\u9805<\/h2>\n<p>\u5728\u4f7f\u7528Java\u5c0e\u51fa\u6578\u64da\u5eab\u6642\uff0c\u6709\u5e7e\u500b\u6ce8\u610f\u4e8b\u9805\u9700\u8981\u8003\u616e\uff1a<\/p>\n<ul>\n<li><strong>\u6578\u64da\u5eab\u9023\u63a5\u5b89\u5168\u6027\uff1a<\/strong>\u78ba\u4fdd\u4f7f\u7528\u5b89\u5168\u7684\u9023\u63a5\u5b57\u7b26\u4e32\uff0c\u4e26\u59a5\u5584\u7ba1\u7406\u6578\u64da\u5eab\u7528\u6236\u540d\u548c\u5bc6\u78bc\u3002<\/li>\n<li><strong>\u6578\u64da\u683c\u5f0f\uff1a<\/strong>\u6839\u64da\u9700\u6c42\u9078\u64c7\u5408\u9069\u7684\u6578\u64da\u683c\u5f0f\uff08\u5982CSV\u3001JSON\u7b49\uff09\u9032\u884c\u5c0e\u51fa\u3002<\/li>\n<li><strong>\u6027\u80fd\u8003\u91cf\uff1a<\/strong>\u5c0d\u65bc\u5927\u578b\u6578\u64da\u96c6\uff0c\u8003\u616e\u4f7f\u7528\u5206\u6279\u5c0e\u51fa\u4ee5\u63d0\u9ad8\u6027\u80fd\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-QpjeNTQBkf\">\u7e3d\u7d50<\/h2>\n<p>\u4f7f\u7528Java\u5c0e\u51fa\u6578\u64da\u5eab\u8173\u672c\u662f\u4e00\u7a2e\u9ad8\u6548\u7684\u6578\u64da\u5099\u4efd\u65b9\u6cd5\u3002\u901a\u904e\u7c21\u55ae\u7684\u4ee3\u78bc\uff0c\u6211\u5011\u53ef\u4ee5\u8f15\u9b06\u5730\u5c07\u6578\u64da\u5c0e\u51fa\u5230\u6587\u4ef6\u4e2d\uff0c\u5f9e\u800c\u78ba\u4fdd\u6578\u64da\u7684\u5b89\u5168\u6027\u548c\u53ef\u7528\u6027\u3002\u5c0d\u65bc\u9700\u8981\u7a69\u5b9a\u548c\u9ad8\u6548\u7684\u6578\u64da\u5099\u4efd\u89e3\u6c7a\u65b9\u6848\u7684\u7528\u6236\uff0c\u9078\u64c7\u5408\u9069\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u6216 <a href=\"https:\/\/server.hk\">\u9999\u6e2f\u4f3a\u670d\u5668<\/a> \u4f86\u904b\u884c\u9019\u4e9b\u8173\u672c\u5c07\u662f\u660e\u667a\u7684\u9078\u64c7\u3002\u7121\u8ad6\u662f\u4f01\u696d\u9084\u662f\u500b\u4eba\u7528\u6236\uff0c\u5b9a\u671f\u5099\u4efd\u6578\u64da\u90fd\u662f\u4e00\u9805\u4e0d\u53ef\u6216\u7f3a\u7684\u4efb\u52d9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5feb\u901f\u5099\u4efd\u6578\u64da\u7684Java\u5c0e\u51fa\u6578\u64da\u5eab\u8173\u672c\uff0c\u7c21\u5316\u6578\u64da\u7ba1\u7406\uff0c\u63d0\u5347\u6548\u7387\uff0c\u78ba\u4fdd\u6578\u64da\u5b89\u5168\u8207\u53ef\u9760\u6027\u3002<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-61897","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/61897","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=61897"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/61897\/revisions"}],"predecessor-version":[{"id":61898,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/61897\/revisions\/61898"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=61897"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=61897"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=61897"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}