{"id":59513,"date":"2024-10-12T22:35:16","date_gmt":"2024-10-12T14:35:16","guid":{"rendered":"https:\/\/server.hk\/cnblog\/59513\/"},"modified":"2024-10-12T22:35:16","modified_gmt":"2024-10-12T14:35:16","slug":"c-jdbc%e9%80%a3%e6%8e%a5%e6%95%b8%e6%93%9a%e5%ba%ab%e7%b0%a1%e4%bb%8b%e5%8f%8a%e4%bd%bf%e7%94%a8%e6%96%b9%e6%b3%95-c-jdbc-%e9%80%a3%e6%8e%a5%e6%95%b8%e6%93%9a%e5%ba%ab","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/59513\/","title":{"rendered":"C JDBC\u9023\u63a5\u6578\u64da\u5eab\u7c21\u4ecb\u53ca\u4f7f\u7528\u65b9\u6cd5 (c jdbc \u9023\u63a5\u6578\u64da\u5eab)"},"content":{"rendered":"<h1 id=\"c-jdbc%e9%80%a3%e6%8e%a5%e6%95%b8%e6%93%9a%e5%ba%ab%e7%b0%a1%e4%bb%8b%e5%8f%8a%e4%bd%bf%e7%94%a8%e6%96%b9%e6%b3%95-xbbfXBrFbu\">C JDBC\u9023\u63a5\u6578\u64da\u5eab\u7c21\u4ecb\u53ca\u4f7f\u7528\u65b9\u6cd5<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u8edf\u4ef6\u958b\u767c\u4e2d\uff0c\u6578\u64da\u5eab\u7684\u4f7f\u7528\u8b8a\u5f97\u8d8a\u4f86\u8d8a\u666e\u904d\u3002Java\u4f5c\u70ba\u4e00\u7a2e\u5ee3\u6cdb\u4f7f\u7528\u7684\u7de8\u7a0b\u8a9e\u8a00\uff0c\u63d0\u4f9b\u4e86\u591a\u7a2e\u65b9\u5f0f\u4f86\u9023\u63a5\u548c\u64cd\u4f5c\u6578\u64da\u5eab\u3002\u5176\u4e2d\uff0cC JDBC\uff08Java Database Connectivity\uff09\u662f\u4e00\u500b\u91cd\u8981\u7684\u6280\u8853\uff0c\u5141\u8a31Java\u61c9\u7528\u7a0b\u5e8f\u8207\u5404\u7a2e\u6578\u64da\u5eab\u9032\u884c\u4ea4\u4e92\u3002\u672c\u6587\u5c07\u4ecb\u7d39C JDBC\u7684\u57fa\u672c\u6982\u5ff5\u53ca\u5176\u4f7f\u7528\u65b9\u6cd5\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%afc-jdbc%ef%bc%9f-xbbfXBrFbu\">\u4ec0\u9ebc\u662fC JDBC\uff1f<\/h2>\n<p>C JDBC\u662f\u4e00\u7a2eAPI\uff0c\u65e8\u5728\u63d0\u4f9bJava\u61c9\u7528\u7a0b\u5e8f\u8207\u6578\u64da\u5eab\u4e4b\u9593\u7684\u9023\u63a5\u3002\u5b83\u5141\u8a31\u958b\u767c\u8005\u4f7f\u7528\u7d71\u4e00\u7684\u63a5\u53e3\u4f86\u8a2a\u554f\u4e0d\u540c\u985e\u578b\u7684\u6578\u64da\u5eab\uff0c\u7121\u8ad6\u662f\u95dc\u4fc2\u578b\u6578\u64da\u5eab\uff08\u5982MySQL\u3001PostgreSQL\uff09\u9084\u662f\u975e\u95dc\u4fc2\u578b\u6578\u64da\u5eab\uff08\u5982MongoDB\uff09\u3002\u9019\u7a2e\u9748\u6d3b\u6027\u4f7f\u5f97\u958b\u767c\u8005\u80fd\u5920\u66f4\u8f15\u9b06\u5730\u69cb\u5efa\u8de8\u5e73\u53f0\u7684\u61c9\u7528\u7a0b\u5e8f\u3002<\/p>\n<h2 id=\"c-jdbc%e7%9a%84%e5%9f%ba%e6%9c%ac%e7%b5%84%e4%bb%b6-xbbfXBrFbu\">C JDBC\u7684\u57fa\u672c\u7d44\u4ef6<\/h2>\n<p>C JDBC\u4e3b\u8981\u7531\u4ee5\u4e0b\u5e7e\u500b\u7d44\u4ef6\u7d44\u6210\uff1a<\/p>\n<ul>\n<li><strong>DriverManager\uff1a<\/strong>\u8ca0\u8cac\u7ba1\u7406\u6578\u64da\u5eab\u9a45\u52d5\u7a0b\u5e8f\u7684\u52a0\u8f09\u548c\u9023\u63a5\u3002<\/li>\n<li><strong>Connection\uff1a<\/strong>\u8868\u793a\u8207\u6578\u64da\u5eab\u7684\u9023\u63a5\uff0c\u63d0\u4f9b\u4e86\u57f7\u884cSQL\u8a9e\u53e5\u7684\u63a5\u53e3\u3002<\/li>\n<li><strong>Statement\uff1a<\/strong>\u7528\u65bc\u57f7\u884cSQL\u67e5\u8a62\u548c\u66f4\u65b0\u64cd\u4f5c\u3002<\/li>\n<li><strong>ResultSet\uff1a<\/strong>\u8868\u793a\u67e5\u8a62\u7d50\u679c\u7684\u96c6\u5408\uff0c\u5141\u8a31\u958b\u767c\u8005\u904d\u6b77\u67e5\u8a62\u7d50\u679c\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%a6%82%e4%bd%95%e4%bd%bf%e7%94%a8c-jdbc%e9%80%a3%e6%8e%a5%e6%95%b8%e6%93%9a%e5%ba%ab-xbbfXBrFbu\">\u5982\u4f55\u4f7f\u7528C JDBC\u9023\u63a5\u6578\u64da\u5eab<\/h2>\n<p>\u4ee5\u4e0b\u662f\u4f7f\u7528C JDBC\u9023\u63a5\u6578\u64da\u5eab\u7684\u57fa\u672c\u6b65\u9a5f\uff1a<\/p>\n<h3 id=\"%e6%ad%a5%e9%a9%9f1%ef%bc%9a%e6%b7%bb%e5%8a%a0jdbc%e9%a9%85%e5%8b%95%e7%a8%8b%e5%ba%8f-xbbfXBrFbu\">\u6b65\u9a5f1\uff1a\u6dfb\u52a0JDBC\u9a45\u52d5\u7a0b\u5e8f<\/h3>\n<p>\u9996\u5148\uff0c\u60a8\u9700\u8981\u78ba\u4fdd\u5df2\u7d93\u6dfb\u52a0\u4e86\u76f8\u61c9\u7684JDBC\u9a45\u52d5\u7a0b\u5e8f\u5230\u60a8\u7684\u9805\u76ee\u4e2d\u3002\u4ee5MySQL\u70ba\u4f8b\uff0c\u60a8\u53ef\u4ee5\u5f9eMySQL\u5b98\u65b9\u7db2\u7ad9\u4e0b\u8f09JDBC\u9a45\u52d5\u7a0b\u5e8f\uff08mysql-connector-java.jar\uff09\uff0c\u4e26\u5c07\u5176\u6dfb\u52a0\u5230\u60a8\u7684\u9805\u76ee\u4e2d\u3002<\/p>\n<h3 id=\"%e6%ad%a5%e9%a9%9f2%ef%bc%9a%e5%8a%a0%e8%bc%89%e9%a9%85%e5%8b%95%e7%a8%8b%e5%ba%8f-xbbfXBrFbu\">\u6b65\u9a5f2\uff1a\u52a0\u8f09\u9a45\u52d5\u7a0b\u5e8f<\/h3>\n<pre><code>Class.forName(\"com.mysql.cj.jdbc.Driver\");<\/code><\/pre>\n<p>\u9019\u884c\u4ee3\u78bc\u5c07\u52a0\u8f09MySQL\u7684JDBC\u9a45\u52d5\u7a0b\u5e8f\u3002<\/p>\n<h3 id=\"%e6%ad%a5%e9%a9%9f3%ef%bc%9a%e5%bb%ba%e7%ab%8b%e9%80%a3%e6%8e%a5-xbbfXBrFbu\">\u6b65\u9a5f3\uff1a\u5efa\u7acb\u9023\u63a5<\/h3>\n<pre><code>String url = \"jdbc:mysql:\/\/localhost:3306\/your_database\";\nString user = \"your_username\";\nString password = \"your_password\";\nConnection connection = DriverManager.getConnection(url, user, password);<\/code><\/pre>\n<p>\u5728\u9019\u88e1\uff0c\u60a8\u9700\u8981\u66ff\u63db<code>your_database<\/code>\u3001<code>your_username<\/code>\u548c<code>your_password<\/code>\u70ba\u60a8\u7684\u6578\u64da\u5eab\u540d\u7a31\u3001\u7528\u6236\u540d\u548c\u5bc6\u78bc\u3002<\/p>\n<h3 id=\"%e6%ad%a5%e9%a9%9f4%ef%bc%9a%e5%9f%b7%e8%a1%8csql%e8%aa%9e%e5%8f%a5-xbbfXBrFbu\">\u6b65\u9a5f4\uff1a\u57f7\u884cSQL\u8a9e\u53e5<\/h3>\n<pre><code>Statement statement = connection.createStatement();\nResultSet resultSet = statement.executeQuery(\"SELECT * FROM your_table\");<\/code><\/pre>\n<p>\u9019\u6bb5\u4ee3\u78bc\u5c07\u57f7\u884c\u4e00\u500b\u67e5\u8a62\uff0c\u4e26\u8fd4\u56de\u7d50\u679c\u96c6\u3002<\/p>\n<h3 id=\"%e6%ad%a5%e9%a9%9f5%ef%bc%9a%e8%99%95%e7%90%86%e7%b5%90%e6%9e%9c%e9%9b%86-xbbfXBrFbu\">\u6b65\u9a5f5\uff1a\u8655\u7406\u7d50\u679c\u96c6<\/h3>\n<pre><code>while (resultSet.next()) {\n    System.out.println(\"Column1: \" + resultSet.getString(\"column1\"));\n}<\/code><\/pre>\n<p>\u9019\u6bb5\u4ee3\u78bc\u5c07\u904d\u6b77\u7d50\u679c\u96c6\u4e26\u6253\u5370\u51fa\u6bcf\u4e00\u884c\u7684<code>column1<\/code>\u7684\u503c\u3002<\/p>\n<h3 id=\"%e6%ad%a5%e9%a9%9f6%ef%bc%9a%e9%97%9c%e9%96%89%e9%80%a3%e6%8e%a5-xbbfXBrFbu\">\u6b65\u9a5f6\uff1a\u95dc\u9589\u9023\u63a5<\/h3>\n<pre><code>resultSet.close();\nstatement.close();\nconnection.close();<\/code><\/pre>\n<p>\u6700\u5f8c\uff0c\u8a18\u5f97\u95dc\u9589\u7d50\u679c\u96c6\u3001\u8072\u660e\u548c\u9023\u63a5\uff0c\u4ee5\u91cb\u653e\u8cc7\u6e90\u3002<\/p>\n<h2 id=\"%e7%b8%bd%e7%b5%90-xbbfXBrFbu\">\u7e3d\u7d50<\/h2>\n<p>C JDBC\u662f\u4e00\u500b\u5f37\u5927\u7684\u5de5\u5177\uff0c\u80fd\u5920\u5e6b\u52a9\u958b\u767c\u8005\u8f15\u9b06\u5730\u9023\u63a5\u548c\u64cd\u4f5c\u5404\u7a2e\u6578\u64da\u5eab\u3002\u901a\u904e\u7c21\u55ae\u7684\u6b65\u9a5f\uff0c\u60a8\u53ef\u4ee5\u5728Java\u61c9\u7528\u7a0b\u5e8f\u4e2d\u5be6\u73fe\u6578\u64da\u5eab\u7684\u8a2a\u554f\u548c\u64cd\u4f5c\u3002\u7121\u8ad6\u60a8\u662f\u958b\u767c\u5c0f\u578b\u61c9\u7528\u9084\u662f\u5927\u578b\u7cfb\u7d71\uff0cC JDBC\u90fd\u80fd\u70ba\u60a8\u63d0\u4f9b\u9748\u6d3b\u7684\u89e3\u6c7a\u65b9\u6848\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\u90e8\u7f72\u60a8\u7684Java\u61c9\u7528\u7a0b\u5e8f\uff0cServer.HK\u63d0\u4f9b\u4e86\u591a\u7a2e\u9078\u64c7\uff0c\u6eff\u8db3\u4e0d\u540c\u9700\u6c42\u7684\u5ba2\u6236\u3002\u7121\u8ad6\u662f <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u9084\u662f\u5176\u4ed6\u985e\u578b\u7684 <a href=\"https:\/\/server.hk\">\u4f3a\u670d\u5668<\/a>\uff0c\u6211\u5011\u90fd\u80fd\u70ba\u60a8\u63d0\u4f9b\u7a69\u5b9a\u7684\u652f\u6301\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3C JDBC\u9023\u63a5\u6578\u64da\u5eab\u7684\u57fa\u672c\u6982\u5ff5\u53ca\u4f7f\u7528\u65b9\u6cd5\uff0c\u8f15\u9b06\u5be6\u73fe\u6578\u64da\u5eab\u64cd\u4f5c\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-59513","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/59513","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=59513"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/59513\/revisions"}],"predecessor-version":[{"id":59514,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/59513\/revisions\/59514"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=59513"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=59513"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=59513"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}