{"id":167021,"date":"2024-11-05T21:42:22","date_gmt":"2024-11-05T13:42:22","guid":{"rendered":"https:\/\/server.hk\/cnblog\/167021\/"},"modified":"2024-11-05T21:42:22","modified_gmt":"2024-11-05T13:42:22","slug":"%e5%88%a9%e7%94%a8java%e9%80%b2%e8%a1%8cmysql%e6%95%b8%e6%93%9a%e5%ba%ab%e7%9a%84%e5%b0%8e%e5%85%a5%e5%92%8c%e5%b0%8e%e5%87%ba","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/167021\/","title":{"rendered":"\u5229\u7528Java\u9032\u884cMySql\u6578\u64da\u5eab\u7684\u5c0e\u5165\u548c\u5c0e\u51fa"},"content":{"rendered":"<h1 id=\"%e5%88%a9%e7%94%a8java%e9%80%b2%e8%a1%8cmysql%e6%95%b8%e6%93%9a%e5%ba%ab%e7%9a%84%e5%b0%8e%e5%85%a5%e5%92%8c%e5%b0%8e%e5%87%ba-cLZUgGzNno\">\u5229\u7528Java\u9032\u884cMySQL\u6578\u64da\u5eab\u7684\u5c0e\u5165\u548c\u5c0e\u51fa<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u6578\u64da\u9a45\u52d5\u6642\u4ee3\uff0c\u6578\u64da\u5eab\u7684\u7ba1\u7406\u548c\u64cd\u4f5c\u8b8a\u5f97\u8d8a\u4f86\u8d8a\u91cd\u8981\u3002MySQL\u4f5c\u70ba\u4e00\u500b\u6d41\u884c\u7684\u958b\u6e90\u6578\u64da\u5eab\u7cfb\u7d71\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u5404\u7a2e\u61c9\u7528\u7a0b\u5e8f\u4e2d\u3002Java\u4f5c\u70ba\u4e00\u7a2e\u5f37\u5927\u7684\u7de8\u7a0b\u8a9e\u8a00\uff0c\u63d0\u4f9b\u4e86\u591a\u7a2e\u65b9\u6cd5\u4f86\u8207MySQL\u6578\u64da\u5eab\u9032\u884c\u4ea4\u4e92\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u5229\u7528Java\u9032\u884cMySQL\u6578\u64da\u5eab\u7684\u5c0e\u5165\u548c\u5c0e\u51fa\uff0c\u4e26\u63d0\u4f9b\u76f8\u95dc\u7684\u793a\u4f8b\u4ee3\u78bc\u3002<\/p>\n<h2 id=\"%e7%92%b0%e5%a2%83%e6%ba%96%e5%82%99-cLZUgGzNno\">\u74b0\u5883\u6e96\u5099<\/h2>\n<p>\u5728\u958b\u59cb\u4e4b\u524d\uff0c\u60a8\u9700\u8981\u78ba\u4fdd\u5df2\u7d93\u5b89\u88dd\u4e86\u4ee5\u4e0b\u74b0\u5883\uff1a<\/p>\n<ul>\n<li>Java Development Kit (JDK)<\/li>\n<li>MySQL\u6578\u64da\u5eab<\/li>\n<li>MySQL Connector\/J\uff08Java\u7684MySQL\u9a45\u52d5\u7a0b\u5e8f\uff09<\/li>\n<\/ul>\n<p>\u60a8\u53ef\u4ee5\u5f9eMySQL\u7684\u5b98\u65b9\u7db2\u7ad9\u4e0b\u8f09MySQL Connector\/J\uff0c\u4e26\u5c07\u5176\u6dfb\u52a0\u5230\u60a8\u7684Java\u9805\u76ee\u7684\u985e\u8def\u5f91\u4e2d\u3002<\/p>\n<h2 id=\"%e5%b0%8e%e5%87%ba%e6%95%b8%e6%93%9a%e5%ba%ab-cLZUgGzNno\">\u5c0e\u51fa\u6578\u64da\u5eab<\/h2>\n<p>\u5c0e\u51faMySQL\u6578\u64da\u5eab\u7684\u904e\u7a0b\u901a\u5e38\u6d89\u53ca\u5c07\u6578\u64da\u5f9e\u6578\u64da\u5eab\u4e2d\u63d0\u53d6\u4e26\u4fdd\u5b58\u5230\u6587\u4ef6\u4e2d\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u4f7f\u7528Java\u5c0e\u51fa\u6578\u64da\u5eab\u7684\u793a\u4f8b\uff1a<\/p>\n<pre><code>import 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 ExportDatabase {\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        \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(\"output.csv\")) {\n             \n            \/\/ \u5beb\u5165CSV\u6587\u4ef6\u7684\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            System.out.println(\"\u6578\u64da\u5c0e\u51fa\u6210\u529f\uff01\");\n        } catch (Exception e) {\n            e.printStackTrace();\n        }\n    }\n}<\/code><\/pre>\n<p>\u5728\u9019\u6bb5\u4ee3\u78bc\u4e2d\uff0c\u6211\u5011\u9996\u5148\u5efa\u7acb\u8207MySQL\u6578\u64da\u5eab\u7684\u9023\u63a5\uff0c\u7136\u5f8c\u57f7\u884c\u67e5\u8a62\u4ee5\u7372\u53d6\u6578\u64da\u3002\u63a5\u8457\uff0c\u6211\u5011\u5c07\u6578\u64da\u5beb\u5165CSV\u6587\u4ef6\u4e2d\u3002\u8acb\u6839\u64da\u60a8\u7684\u6578\u64da\u5eab\u548c\u8868\u7684\u7d50\u69cb\u8abf\u6574\u67e5\u8a62\u548c\u5217\u540d\u3002<\/p>\n<h2 id=\"%e5%b0%8e%e5%85%a5%e6%95%b8%e6%93%9a%e5%ba%ab-cLZUgGzNno\">\u5c0e\u5165\u6578\u64da\u5eab<\/h2>\n<p>\u5c0e\u5165\u6578\u64da\u5eab\u7684\u904e\u7a0b\u5247\u662f\u5c07\u6587\u4ef6\u4e2d\u7684\u6578\u64da\u8b80\u53d6\u4e26\u63d2\u5165\u5230MySQL\u6578\u64da\u5eab\u4e2d\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u4f7f\u7528Java\u5c0e\u5165\u6578\u64da\u5eab\u7684\u793a\u4f8b\uff1a<\/p>\n<pre><code>import java.sql.Connection;\nimport java.sql.DriverManager;\nimport java.sql.PreparedStatement;\nimport java.io.BufferedReader;\nimport java.io.FileReader;\n\npublic class ImportDatabase {\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        \n        String csvFile = \"input.csv\";\n        String line;\n        String csvSplitBy = \",\";\n        \n        try (Connection conn = DriverManager.getConnection(url, user, password);\n             BufferedReader br = new BufferedReader(new FileReader(csvFile))) {\n             \n            String sql = \"INSERT INTO your_table (column1, column2, column3) VALUES (?, ?, ?)\";\n            PreparedStatement pstmt = conn.prepareStatement(sql);\n            \n            while ((line = br.readLine()) != null) {\n                String[] data = line.split(csvSplitBy);\n                pstmt.setString(1, data[0]);\n                pstmt.setString(2, data[1]);\n                pstmt.setString(3, data[2]);\n                pstmt.addBatch();\n            }\n            pstmt.executeBatch();\n            System.out.println(\"\u6578\u64da\u5c0e\u5165\u6210\u529f\uff01\");\n        } catch (Exception e) {\n            e.printStackTrace();\n        }\n    }\n}<\/code><\/pre>\n<p>\u5728\u9019\u6bb5\u4ee3\u78bc\u4e2d\uff0c\u6211\u5011\u5f9eCSV\u6587\u4ef6\u4e2d\u8b80\u53d6\u6578\u64da\uff0c\u7136\u5f8c\u4f7f\u7528PreparedStatement\u5c07\u6578\u64da\u63d2\u5165\u5230MySQL\u6578\u64da\u5eab\u4e2d\u3002\u9019\u7a2e\u65b9\u6cd5\u4e0d\u50c5\u63d0\u9ad8\u4e86\u6027\u80fd\uff0c\u9084\u80fd\u9632\u6b62SQL\u6ce8\u5165\u653b\u64ca\u3002<\/p>\n<h2 id=\"%e7%b8%bd%e7%b5%90-cLZUgGzNno\">\u7e3d\u7d50<\/h2>\n<p>\u5229\u7528Java\u9032\u884cMySQL\u6578\u64da\u5eab\u7684\u5c0e\u5165\u548c\u5c0e\u51fa\u662f\u4e00\u500b\u76f8\u5c0d\u7c21\u55ae\u7684\u904e\u7a0b\uff0c\u901a\u904e\u9069\u7576\u7684\u4ee3\u78bc\u548c\u5de5\u5177\uff0c\u60a8\u53ef\u4ee5\u8f15\u9b06\u5730\u7ba1\u7406\u6578\u64da\u3002\u7121\u8ad6\u662f\u5c0e\u51fa\u6578\u64da\u4ee5\u9032\u884c\u5099\u4efd\uff0c\u9084\u662f\u5f9e\u6587\u4ef6\u4e2d\u5c0e\u5165\u6578\u64da\u4ee5\u66f4\u65b0\u6578\u64da\u5eab\uff0cJava\u90fd\u63d0\u4f9b\u4e86\u5f37\u5927\u7684\u652f\u6301\u3002<\/p>\n<p>\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u9ad8\u6548\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u89e3\u6c7a\u65b9\u6848\u4f86\u904b\u884c\u60a8\u7684\u61c9\u7528\u7a0b\u5e8f\uff0cServer.HK \u63d0\u4f9b\u4e86\u591a\u7a2e\u9078\u64c7\uff0c\u9069\u5408\u5404\u7a2e\u9700\u6c42\u3002\u7121\u8ad6\u662f <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u9084\u662f\u5176\u4ed6\u670d\u52d9\uff0c\u6211\u5011\u90fd\u80fd\u70ba\u60a8\u63d0\u4f9b\u7a69\u5b9a\u7684\u652f\u6301\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5b78\u7fd2\u5982\u4f55\u5229\u7528Java\u9032\u884cMySQL\u6578\u64da\u5eab\u7684\u5c0e\u5165\u548c\u5c0e\u51fa\uff0c\u7c21\u5316\u6578\u64da\u7ba1\u7406\u6d41\u7a0b\uff0c\u63d0\u9ad8\u6548\u7387\u3002<\/p>\n","protected":false},"author":0,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-167021","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/167021","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"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=167021"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/167021\/revisions"}],"predecessor-version":[{"id":167022,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/167021\/revisions\/167022"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=167021"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=167021"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=167021"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}