{"id":62063,"date":"2024-10-13T15:52:18","date_gmt":"2024-10-13T07:52:18","guid":{"rendered":"https:\/\/server.hk\/cnblog\/62063\/"},"modified":"2024-10-13T15:52:18","modified_gmt":"2024-10-13T07:52:18","slug":"java%e6%95%b8%e6%93%9a%e5%ba%ab%e7%b7%a8%e7%a8%8b%e7%b0%a1%e4%bb%8b-%e7%94%a8java%e7%b7%a8%e5%af%ab%e6%95%b8%e6%93%9a%e5%ba%ab%e7%a8%8b%e5%ba%8f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/62063\/","title":{"rendered":"Java\u6578\u64da\u5eab\u7de8\u7a0b\u7c21\u4ecb (\u7528java\u7de8\u5beb\u6578\u64da\u5eab\u7a0b\u5e8f)"},"content":{"rendered":"<h1 id=\"java%e6%95%b8%e6%93%9a%e5%ba%ab%e7%b7%a8%e7%a8%8b%e7%b0%a1%e4%bb%8b-%e7%94%a8java%e7%b7%a8%e5%af%ab%e6%95%b8%e6%93%9a%e5%ba%ab%e7%a8%8b%e5%ba%8f-WmQoMDMRRi\">Java\u6578\u64da\u5eab\u7de8\u7a0b\u7c21\u4ecb (\u7528Java\u7de8\u5beb\u6578\u64da\u5eab\u7a0b\u5e8f)<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u8edf\u4ef6\u958b\u767c\u4e2d\uff0c\u6578\u64da\u5eab\u7de8\u7a0b\u662f\u4e0d\u53ef\u6216\u7f3a\u7684\u4e00\u90e8\u5206\u3002Java\u4f5c\u70ba\u4e00\u7a2e\u5ee3\u6cdb\u4f7f\u7528\u7684\u7de8\u7a0b\u8a9e\u8a00\uff0c\u63d0\u4f9b\u4e86\u591a\u7a2e\u5de5\u5177\u548c\u5eab\u4f86\u652f\u6301\u6578\u64da\u5eab\u7684\u64cd\u4f5c\u3002\u672c\u6587\u5c07\u4ecb\u7d39Java\u6578\u64da\u5eab\u7de8\u7a0b\u7684\u57fa\u672c\u6982\u5ff5\u3001\u5e38\u7528\u6280\u8853\u4ee5\u53ca\u4e00\u4e9b\u5be6\u7528\u7684\u4ee3\u78bc\u793a\u4f8b\u3002<\/p>\n<h2 id=\"java%e6%95%b8%e6%93%9a%e5%ba%ab%e7%b7%a8%e7%a8%8b%e7%9a%84%e5%9f%ba%e6%9c%ac%e6%a6%82%e5%bf%b5-WmQoMDMRRi\">Java\u6578\u64da\u5eab\u7de8\u7a0b\u7684\u57fa\u672c\u6982\u5ff5<\/h2>\n<p>Java\u6578\u64da\u5eab\u7de8\u7a0b\u4e3b\u8981\u662f\u6307\u4f7f\u7528Java\u8a9e\u8a00\u4f86\u8207\u6578\u64da\u5eab\u9032\u884c\u4ea4\u4e92\u3002\u9019\u901a\u5e38\u6d89\u53ca\u5230\u6578\u64da\u7684\u589e\u522a\u6539\u67e5\uff08CRUD\uff09\u64cd\u4f5c\u3002Java\u901a\u904eJava Database Connectivity\uff08JDBC\uff09API\u4f86\u5be6\u73fe\u8207\u5404\u7a2e\u6578\u64da\u5eab\u7684\u9023\u63a5\u548c\u64cd\u4f5c\u3002<\/p>\n<h2 id=\"jdbc%e7%9a%84%e5%9f%ba%e6%9c%ac%e7%b5%84%e6%88%90-WmQoMDMRRi\">JDBC\u7684\u57fa\u672c\u7d44\u6210<\/h2>\n<p>JDBC\u662f\u4e00\u500bJava API\uff0c\u5141\u8a31Java\u7a0b\u5e8f\u8207\u6578\u64da\u5eab\u9032\u884c\u4ea4\u4e92\u3002\u5b83\u7684\u57fa\u672c\u7d44\u6210\u5305\u62ec\uff1a<\/p>\n<ul>\n<li><strong>DriverManager\uff1a<\/strong>\u8ca0\u8cac\u7ba1\u7406\u6578\u64da\u5eab\u9a45\u52d5\u7a0b\u5e8f\u7684\u985e\u3002<\/li>\n<li><strong>Connection\uff1a<\/strong>\u8868\u793a\u8207\u7279\u5b9a\u6578\u64da\u5eab\u7684\u9023\u63a5\u3002<\/li>\n<li><strong>Statement\uff1a<\/strong>\u7528\u65bc\u57f7\u884cSQL\u67e5\u8a62\u7684\u5c0d\u8c61\u3002<\/li>\n<li><strong>ResultSet\uff1a<\/strong>\u8868\u793a\u67e5\u8a62\u7d50\u679c\u7684\u5c0d\u8c61\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%a6%82%e4%bd%95%e4%bd%bf%e7%94%a8jdbc%e9%80%b2%e8%a1%8c%e6%95%b8%e6%93%9a%e5%ba%ab%e6%93%8d%e4%bd%9c-WmQoMDMRRi\">\u5982\u4f55\u4f7f\u7528JDBC\u9032\u884c\u6578\u64da\u5eab\u64cd\u4f5c<\/h2>\n<p>\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684\u793a\u4f8b\uff0c\u5c55\u793a\u5982\u4f55\u4f7f\u7528JDBC\u9023\u63a5\u5230MySQL\u6578\u64da\u5eab\u4e26\u57f7\u884c\u57fa\u672c\u7684CRUD\u64cd\u4f5c\u3002<\/p>\n<h3 id=\"1-%e6%b7%bb%e5%8a%a0%e4%be%9d%e8%b3%b4-WmQoMDMRRi\">1. \u6dfb\u52a0\u4f9d\u8cf4<\/h3>\n<p>\u9996\u5148\uff0c\u78ba\u4fdd\u5728\u4f60\u7684Java\u9805\u76ee\u4e2d\u6dfb\u52a0MySQL JDBC\u9a45\u52d5\u7684\u4f9d\u8cf4\u3002\u5982\u679c\u4f60\u4f7f\u7528Maven\uff0c\u53ef\u4ee5\u5728pom.xml\u4e2d\u6dfb\u52a0\uff1a<\/p>\n<pre><code>\n&lt;dependency&gt;\n    &lt;groupId&gt;mysql&lt;\/groupId&gt;\n    &lt;artifactId&gt;mysql-connector-java&lt;\/artifactId&gt;\n    &lt;version&gt;8.0.26&lt;\/version&gt;\n&lt;\/dependency&gt;\n<\/code><\/pre>\n<h3 id=\"2-%e9%80%a3%e6%8e%a5%e6%95%b8%e6%93%9a%e5%ba%ab-WmQoMDMRRi\">2. \u9023\u63a5\u6578\u64da\u5eab<\/h3>\n<p>\u63a5\u4e0b\u4f86\uff0c\u4f7f\u7528\u4ee5\u4e0b\u4ee3\u78bc\u9023\u63a5\u5230\u6578\u64da\u5eab\uff1a<\/p>\n<pre><code>\nimport java.sql.Connection;\nimport java.sql.DriverManager;\nimport java.sql.SQLException;\n\npublic class DatabaseConnection {\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 connection = DriverManager.getConnection(url, user, password)) {\n            System.out.println(\"\u6210\u529f\u9023\u63a5\u5230\u6578\u64da\u5eab\uff01\");\n        } catch (SQLException e) {\n            e.printStackTrace();\n        }\n    }\n}\n<\/code><\/pre>\n<h3 id=\"3-%e5%9f%b7%e8%a1%8csql%e6%9f%a5%e8%a9%a2-WmQoMDMRRi\">3. \u57f7\u884cSQL\u67e5\u8a62<\/h3>\n<p>\u4ee5\u4e0b\u4ee3\u78bc\u793a\u7bc4\u5982\u4f55\u57f7\u884c\u4e00\u500b\u7c21\u55ae\u7684\u67e5\u8a62\uff1a<\/p>\n<pre><code>\nimport java.sql.Connection;\nimport java.sql.DriverManager;\nimport java.sql.ResultSet;\nimport java.sql.SQLException;\nimport java.sql.Statement;\n\npublic class QueryExample {\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 connection = DriverManager.getConnection(url, user, password);\n             Statement statement = connection.createStatement()) {\n\n            String sql = \"SELECT * FROM your_table\";\n            ResultSet resultSet = statement.executeQuery(sql);\n\n            while (resultSet.next()) {\n                System.out.println(\"Column1: \" + resultSet.getString(\"column1\"));\n                \/\/ \u7e7c\u7e8c\u8655\u7406\u5176\u4ed6\u5217\n            }\n        } catch (SQLException e) {\n            e.printStackTrace();\n        }\n    }\n}\n<\/code><\/pre>\n<h2 id=\"%e5%b8%b8%e8%a6%8b%e7%9a%84%e6%95%b8%e6%93%9a%e5%ba%ab%e6%93%8d%e4%bd%9c-WmQoMDMRRi\">\u5e38\u898b\u7684\u6578\u64da\u5eab\u64cd\u4f5c<\/h2>\n<p>\u5728Java\u4e2d\uff0c\u5e38\u898b\u7684\u6578\u64da\u5eab\u64cd\u4f5c\u5305\u62ec\uff1a<\/p>\n<ul>\n<li><strong>\u63d2\u5165\u6578\u64da\uff1a<\/strong>\u4f7f\u7528INSERT\u8a9e\u53e5\u5c07\u6578\u64da\u63d2\u5165\u5230\u6578\u64da\u5eab\u4e2d\u3002<\/li>\n<li><strong>\u66f4\u65b0\u6578\u64da\uff1a<\/strong>\u4f7f\u7528UPDATE\u8a9e\u53e5\u4fee\u6539\u5df2\u6709\u6578\u64da\u3002<\/li>\n<li><strong>\u522a\u9664\u6578\u64da\uff1a<\/strong>\u4f7f\u7528DELETE\u8a9e\u53e5\u522a\u9664\u4e0d\u9700\u8981\u7684\u6578\u64da\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b5%90%e8%ab%96-WmQoMDMRRi\">\u7d50\u8ad6<\/h2>\n<p>Java\u6578\u64da\u5eab\u7de8\u7a0b\u662f\u4e00\u500b\u5f37\u5927\u4e14\u9748\u6d3b\u7684\u5de5\u5177\uff0c\u80fd\u5920\u5e6b\u52a9\u958b\u767c\u8005\u9ad8\u6548\u5730\u7ba1\u7406\u548c\u64cd\u4f5c\u6578\u64da\u3002\u901a\u904eJDBC\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u8f15\u9b06\u5730\u8207\u5404\u7a2e\u6578\u64da\u5eab\u9032\u884c\u4ea4\u4e92\uff0c\u5be6\u73fe\u6578\u64da\u7684\u589e\u522a\u6539\u67e5\u64cd\u4f5c\u3002\u96a8\u8457\u6280\u8853\u7684\u767c\u5c55\uff0cJava\u5728\u6578\u64da\u5eab\u7de8\u7a0b\u4e2d\u7684\u61c9\u7528\u5c07\u6703\u8d8a\u4f86\u8d8a\u5ee3\u6cdb\u3002<\/p>\n<p>\u5982\u679c\u60a8\u5c0d\u65bcVPS\u3001<a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a>\u3001<a href=\"https:\/\/server.hk\">\u670d\u52a1\u5668<\/a>\u6216<a href=\"https:\/\/server.hk\">\u4e91\u670d\u52a1\u5668<\/a>\u6709\u8208\u8da3\uff0c\u6b61\u8fce\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u4ee5\u7372\u53d6\u66f4\u591a\u4fe1\u606f\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22Java\u6578\u64da\u5eab\u7de8\u7a0b\u7684\u57fa\u790e\uff0c\u5b78\u7fd2\u5982\u4f55\u4f7f\u7528Java\u7de8\u5beb\u9ad8\u6548\u7684\u6578\u64da\u5eab\u61c9\u7528\u7a0b\u5e8f\uff0c\u5be6\u73fe\u6578\u64da\u7684\u5b58\u53d6\u8207\u7ba1\u7406\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-62063","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/62063","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=62063"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/62063\/revisions"}],"predecessor-version":[{"id":62064,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/62063\/revisions\/62064"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=62063"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=62063"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=62063"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}