{"id":193999,"date":"2024-11-13T02:55:24","date_gmt":"2024-11-12T18:55:24","guid":{"rendered":"https:\/\/server.hk\/cnblog\/193999\/"},"modified":"2024-11-13T02:55:25","modified_gmt":"2024-11-12T18:55:25","slug":"%e4%b8%80%e5%80%8b%e7%ad%86%e8%a8%98%e5%91%8a%e8%a8%b4%e4%bd%a0%ef%bc%8c%e5%be%9ejava%e5%ad%98%e5%84%b2%e8%bd%89%e5%88%b0sql%e5%ad%98%e5%84%b2%e7%9a%84%e9%81%8e%e7%a8%8b","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/193999\/","title":{"rendered":"\u4e00\u500b\u7b46\u8a18\u544a\u8a34\u4f60\uff0c\u5f9eJava\u5b58\u5132\u8f49\u5230SQL\u5b58\u5132\u7684\u904e\u7a0b"},"content":{"rendered":"<h1 id=\"%e4%b8%80%e5%80%8b%e7%ad%86%e8%a8%98%e5%91%8a%e8%a8%b4%e4%bd%a0%ef%bc%8c%e5%be%9ejava%e5%ad%98%e5%84%b2%e8%bd%89%e5%88%b0sql%e5%ad%98%e5%84%b2%e7%9a%84%e9%81%8e%e7%a8%8b-tjvgUDNiFn\">\u4e00\u500b\u7b46\u8a18\u544a\u8a34\u4f60\uff0c\u5f9eJava\u5b58\u5132\u8f49\u5230SQL\u5b58\u5132\u7684\u904e\u7a0b<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u8edf\u4ef6\u958b\u767c\u4e2d\uff0c\u6578\u64da\u5b58\u5132\u7684\u9078\u64c7\u5c0d\u65bc\u61c9\u7528\u7a0b\u5e8f\u7684\u6027\u80fd\u548c\u53ef\u64f4\u5c55\u6027\u81f3\u95dc\u91cd\u8981\u3002Java\u4f5c\u70ba\u4e00\u7a2e\u5ee3\u6cdb\u4f7f\u7528\u7684\u7de8\u7a0b\u8a9e\u8a00\uff0c\u901a\u5e38\u6703\u4f7f\u7528\u5167\u5b58\u6578\u64da\u7d50\u69cb\u4f86\u5b58\u5132\u6578\u64da\u3002\u7136\u800c\uff0c\u96a8\u8457\u61c9\u7528\u7a0b\u5e8f\u7684\u589e\u9577\uff0c\u5c07\u6578\u64da\u5f9eJava\u5b58\u5132\u8f49\u79fb\u5230SQL\u5b58\u5132\u6210\u70ba\u4e00\u500b\u5fc5\u8981\u7684\u6b65\u9a5f\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u9019\u4e00\u904e\u7a0b\u7684\u95dc\u9375\u6b65\u9a5f\u548c\u8003\u91cf\u56e0\u7d20\u3002<\/p>\n<h2 id=\"%e7%82%ba%e4%bb%80%e9%ba%bc%e9%81%b8%e6%93%87sql%e5%ad%98%e5%84%b2%ef%bc%9f-tjvgUDNiFn\">\u70ba\u4ec0\u9ebc\u9078\u64c7SQL\u5b58\u5132\uff1f<\/h2>\n<p>\u5728\u8003\u616e\u5c07\u6578\u64da\u5f9eJava\u5b58\u5132\u8f49\u79fb\u5230SQL\u5b58\u5132\u6642\uff0c\u9996\u5148\u9700\u8981\u4e86\u89e3SQL\u5b58\u5132\u7684\u512a\u52e2\uff1a<\/p>\n<ul>\n<li><strong>\u6578\u64da\u6301\u4e45\u6027\uff1a<\/strong>SQL\u6578\u64da\u5eab\u63d0\u4f9b\u4e86\u6578\u64da\u7684\u6301\u4e45\u6027\uff0c\u78ba\u4fdd\u6578\u64da\u4e0d\u6703\u56e0\u61c9\u7528\u7a0b\u5e8f\u5d29\u6f70\u800c\u4e1f\u5931\u3002<\/li>\n<li><strong>\u6578\u64da\u5b8c\u6574\u6027\uff1a<\/strong>SQL\u6578\u64da\u5eab\u652f\u6301\u4e8b\u52d9\u8655\u7406\uff0c\u80fd\u5920\u4fdd\u8b49\u6578\u64da\u7684\u4e00\u81f4\u6027\u548c\u5b8c\u6574\u6027\u3002<\/li>\n<li><strong>\u67e5\u8a62\u80fd\u529b\uff1a<\/strong>SQL\u8a9e\u8a00\u63d0\u4f9b\u4e86\u5f37\u5927\u7684\u67e5\u8a62\u529f\u80fd\uff0c\u80fd\u5920\u9ad8\u6548\u5730\u6aa2\u7d22\u548c\u64cd\u4f5c\u6578\u64da\u3002<\/li>\n<li><strong>\u53ef\u64f4\u5c55\u6027\uff1a<\/strong>\u96a8\u8457\u6578\u64da\u91cf\u7684\u589e\u9577\uff0cSQL\u6578\u64da\u5eab\u80fd\u5920\u66f4\u597d\u5730\u8655\u7406\u5927\u91cf\u6578\u64da\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%be%9ejava%e5%ad%98%e5%84%b2%e8%bd%89%e7%a7%bb%e5%88%b0sql%e5%ad%98%e5%84%b2%e7%9a%84%e6%ad%a5%e9%a9%9f-tjvgUDNiFn\">\u5f9eJava\u5b58\u5132\u8f49\u79fb\u5230SQL\u5b58\u5132\u7684\u6b65\u9a5f<\/h2>\n<h3 id=\"1-%e7%a2%ba%e5%ae%9a%e6%95%b8%e6%93%9a%e6%a8%a1%e5%9e%8b-tjvgUDNiFn\">1. \u78ba\u5b9a\u6578\u64da\u6a21\u578b<\/h3>\n<p>\u5728\u8f49\u79fb\u6578\u64da\u4e4b\u524d\uff0c\u9996\u5148\u9700\u8981\u8a2d\u8a08\u4e00\u500b\u5408\u9069\u7684\u6578\u64da\u6a21\u578b\u3002\u9019\u5305\u62ec\u78ba\u5b9a\u6578\u64da\u8868\u7684\u7d50\u69cb\u3001\u5b57\u6bb5\u985e\u578b\u4ee5\u53ca\u8868\u4e4b\u9593\u7684\u95dc\u4fc2\u3002\u4f8b\u5982\uff0c\u5047\u8a2d\u6211\u5011\u6709\u4e00\u500b\u7528\u6236\u4fe1\u606f\u7684Java\u985e\uff1a<\/p>\n<pre><code>public class User {\n    private int id;\n    private String name;\n    private String email;\n    \n    \/\/ getters and setters\n}<\/code><\/pre>\n<p>\u5c0d\u61c9\u7684SQL\u6578\u64da\u8868\u53ef\u4ee5\u8a2d\u8a08\u70ba\uff1a<\/p>\n<pre><code>CREATE TABLE users (\n    id INT PRIMARY KEY,\n    name VARCHAR(100),\n    email VARCHAR(100)\n);<\/code><\/pre>\n<h3 id=\"2-%e6%95%b8%e6%93%9a%e8%bd%89%e6%8f%9b-tjvgUDNiFn\">2. \u6578\u64da\u8f49\u63db<\/h3>\n<p>\u5728\u78ba\u5b9a\u6578\u64da\u6a21\u578b\u5f8c\uff0c\u63a5\u4e0b\u4f86\u9700\u8981\u5c07Java\u4e2d\u7684\u6578\u64da\u8f49\u63db\u70baSQL\u683c\u5f0f\u3002\u9019\u901a\u5e38\u6d89\u53ca\u5230\u5c07Java\u5c0d\u8c61\u5e8f\u5217\u5316\u70baSQL\u63d2\u5165\u8a9e\u53e5\u3002\u4f8b\u5982\uff0c\u5c07\u4e00\u500b\u7528\u6236\u5c0d\u8c61\u63d2\u5165\u5230\u6578\u64da\u5eab\u4e2d\uff1a<\/p>\n<pre><code>String sql = \"INSERT INTO users (id, name, email) VALUES (?, ?, ?)\";\nPreparedStatement pstmt = connection.prepareStatement(sql);\npstmt.setInt(1, user.getId());\npstmt.setString(2, user.getName());\npstmt.setString(3, user.getEmail());\npstmt.executeUpdate();<\/code><\/pre>\n<h3 id=\"3-%e6%95%b8%e6%93%9a%e5%ba%ab%e9%80%a3%e6%8e%a5-tjvgUDNiFn\">3. \u6578\u64da\u5eab\u9023\u63a5<\/h3>\n<p>\u5728Java\u4e2d\uff0c\u4f7f\u7528JDBC\uff08Java Database Connectivity\uff09\u4f86\u9023\u63a5SQL\u6578\u64da\u5eab\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684\u9023\u63a5\u793a\u4f8b\uff1a<\/p>\n<pre><code>String url = \"jdbc:mysql:\/\/localhost:3306\/mydatabase\";\nString user = \"username\";\nString password = \"password\";\nConnection connection = DriverManager.getConnection(url, user, password);<\/code><\/pre>\n<h3 id=\"4-%e6%b8%ac%e8%a9%a6%e5%92%8c%e9%a9%97%e8%ad%89-tjvgUDNiFn\">4. \u6e2c\u8a66\u548c\u9a57\u8b49<\/h3>\n<p>\u6578\u64da\u8f49\u79fb\u5b8c\u6210\u5f8c\uff0c\u5fc5\u9808\u9032\u884c\u6e2c\u8a66\u4ee5\u78ba\u4fdd\u6578\u64da\u7684\u5b8c\u6574\u6027\u548c\u6b63\u78ba\u6027\u3002\u53ef\u4ee5\u901a\u904e\u67e5\u8a62\u6578\u64da\u5eab\u4f86\u9a57\u8b49\u6578\u64da\u662f\u5426\u6b63\u78ba\u63d2\u5165\uff1a<\/p>\n<pre><code>Statement stmt = connection.createStatement();\nResultSet rs = stmt.executeQuery(\"SELECT * FROM users\");\nwhile (rs.next()) {\n    System.out.println(\"ID: \" + rs.getInt(\"id\") + \", Name: \" + rs.getString(\"name\"));\n}<\/code><\/pre>\n<h2 id=\"%e7%b5%90%e8%ab%96-tjvgUDNiFn\">\u7d50\u8ad6<\/h2>\n<p>\u5c07\u6578\u64da\u5f9eJava\u5b58\u5132\u8f49\u79fb\u5230SQL\u5b58\u5132\u662f\u4e00\u500b\u91cd\u8981\u7684\u904e\u7a0b\uff0c\u6d89\u53ca\u6578\u64da\u6a21\u578b\u8a2d\u8a08\u3001\u6578\u64da\u8f49\u63db\u3001\u6578\u64da\u5eab\u9023\u63a5\u4ee5\u53ca\u6e2c\u8a66\u9a57\u8b49\u7b49\u6b65\u9a5f\u3002\u9019\u4e00\u904e\u7a0b\u4e0d\u50c5\u80fd\u63d0\u9ad8\u6578\u64da\u7684\u6301\u4e45\u6027\u548c\u5b8c\u6574\u6027\uff0c\u9084\u80fd\u63d0\u5347\u61c9\u7528\u7a0b\u5e8f\u7684\u6027\u80fd\u548c\u53ef\u64f4\u5c55\u6027\u3002\u5c0d\u65bc\u5e0c\u671b\u5728\u9999\u6e2f\u5c0b\u627e\u9ad8\u6548\u80fd\u7684\u6578\u64da\u5b58\u5132\u89e3\u6c7a\u65b9\u6848\u7684\u958b\u767c\u8005\u4f86\u8aaa\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> \u662f\u81f3\u95dc\u91cd\u8981\u7684\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3\u5f9eJava\u5b58\u5132\u8f49\u5230SQL\u5b58\u5132\u7684\u904e\u7a0b\uff0c\u638c\u63e1\u6578\u64da\u9077\u79fb\u7684\u95dc\u9375\u6b65\u9a5f\u8207\u6700\u4f73\u5be6\u8e10\uff0c\u63d0\u5347\u958b\u767c\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-193999","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/193999","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=193999"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/193999\/revisions"}],"predecessor-version":[{"id":194000,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/193999\/revisions\/194000"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=193999"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=193999"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=193999"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}