{"id":180646,"date":"2024-11-09T12:00:17","date_gmt":"2024-11-09T04:00:17","guid":{"rendered":"https:\/\/server.hk\/cnblog\/180646\/"},"modified":"2024-11-09T12:00:18","modified_gmt":"2024-11-09T04:00:18","slug":"%e6%b7%b1%e5%85%a5%e4%ba%86%e8%a7%a3%ef%bc%9ajar%e5%8c%85%e9%80%a3%e6%8e%a5%e6%95%b8%e6%93%9a%e5%ba%ab%e7%9a%84%e5%b7%a5%e4%bd%9c%e5%8e%9f%e7%90%86-jar%e5%8c%85%e9%80%a3%e6%8e%a5%e6%95%b8%e6%93%9a","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/180646\/","title":{"rendered":"\u6df1\u5165\u4e86\u89e3\uff1ajar\u5305\u9023\u63a5\u6578\u64da\u5eab\u7684\u5de5\u4f5c\u539f\u7406 (jar\u5305\u9023\u63a5\u6578\u64da\u5eab\u539f\u7406)"},"content":{"rendered":"<h1 id=\"%e6%b7%b1%e5%85%a5%e4%ba%86%e8%a7%a3%ef%bc%9ajar%e5%8c%85%e9%80%a3%e6%8e%a5%e6%95%b8%e6%93%9a%e5%ba%ab%e7%9a%84%e5%b7%a5%e4%bd%9c%e5%8e%9f%e7%90%86-lXJtaGdTjs\">\u6df1\u5165\u4e86\u89e3\uff1ajar\u5305\u9023\u63a5\u6578\u64da\u5eab\u7684\u5de5\u4f5c\u539f\u7406<\/h1>\n<p>\u5728\u73fe\u4ee3\u7684\u8edf\u4ef6\u958b\u767c\u4e2d\uff0cJava\u61c9\u7528\u7a0b\u5e8f\u7d93\u5e38\u9700\u8981\u8207\u6578\u64da\u5eab\u9032\u884c\u4ea4\u4e92\u3002\u70ba\u4e86\u5be6\u73fe\u9019\u4e00\u9ede\uff0c\u958b\u767c\u8005\u901a\u5e38\u6703\u4f7f\u7528Java Archive\uff08jar\uff09\u5305\u4f86\u5c01\u88dd\u61c9\u7528\u7a0b\u5e8f\u53ca\u5176\u4f9d\u8cf4\u7684\u5eab\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0ejar\u5305\u5982\u4f55\u9023\u63a5\u6578\u64da\u5eab\u7684\u5de5\u4f5c\u539f\u7406\uff0c\u4e26\u63d0\u4f9b\u4e00\u4e9b\u5be6\u7528\u7684\u793a\u4f8b\u548c\u4ee3\u78bc\u7247\u6bb5\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%afjar%e5%8c%85%ef%bc%9f-lXJtaGdTjs\">\u4ec0\u9ebc\u662fjar\u5305\uff1f<\/h2>\n<p>jar\u5305\u662f\u4e00\u7a2e\u7528\u65bc\u6253\u5305Java\u985e\u6587\u4ef6\u53ca\u5176\u76f8\u95dc\u8cc7\u6e90\u7684\u6587\u4ef6\u683c\u5f0f\u3002\u5b83\u4f7f\u5f97Java\u61c9\u7528\u7a0b\u5e8f\u7684\u5206\u767c\u548c\u90e8\u7f72\u8b8a\u5f97\u66f4\u52a0\u7c21\u55ae\u3002jar\u5305\u53ef\u4ee5\u5305\u542b\u591a\u500b\u985e\u6587\u4ef6\u3001\u5716\u50cf\u3001\u97f3\u983b\u6587\u4ef6\u4ee5\u53ca\u5176\u4ed6\u8cc7\u6e90\uff0c\u4e26\u4e14\u53ef\u4ee5\u901a\u904eJava\u865b\u64ec\u6a5f\uff08JVM\uff09\u76f4\u63a5\u904b\u884c\u3002<\/p>\n<h2 id=\"%e6%95%b8%e6%93%9a%e5%ba%ab%e9%80%a3%e6%8e%a5%e7%9a%84%e5%9f%ba%e6%9c%ac%e6%a6%82%e5%bf%b5-lXJtaGdTjs\">\u6578\u64da\u5eab\u9023\u63a5\u7684\u57fa\u672c\u6982\u5ff5<\/h2>\n<p>\u5728Java\u4e2d\uff0c\u9023\u63a5\u6578\u64da\u5eab\u7684\u904e\u7a0b\u901a\u5e38\u6d89\u53ca\u4ee5\u4e0b\u5e7e\u500b\u6b65\u9a5f\uff1a<\/p>\n<ul>\n<li id=\"%e5%8a%a0%e8%bc%89%e6%95%b8%e6%93%9a%e5%ba%ab%e9%a9%85%e5%8b%95%e7%a8%8b%e5%ba%8f-lXJtaGdTjs\">\u52a0\u8f09\u6578\u64da\u5eab\u9a45\u52d5\u7a0b\u5e8f<\/li>\n<li id=\"%e5%bb%ba%e7%ab%8b%e6%95%b8%e6%93%9a%e5%ba%ab%e9%80%a3%e6%8e%a5-lXJtaGdTjs\">\u5efa\u7acb\u6578\u64da\u5eab\u9023\u63a5<\/li>\n<li id=\"%e5%9f%b7%e8%a1%8csql%e6%9f%a5%e8%a9%a2-lXJtaGdTjs\">\u57f7\u884cSQL\u67e5\u8a62<\/li>\n<li id=\"%e8%99%95%e7%90%86%e7%b5%90%e6%9e%9c%e9%9b%86-lXJtaGdTjs\">\u8655\u7406\u7d50\u679c\u96c6<\/li>\n<li id=\"%e9%97%9c%e9%96%89%e9%80%a3%e6%8e%a5-lXJtaGdTjs\">\u95dc\u9589\u9023\u63a5<\/li>\n<\/ul>\n<h2 id=\"%e5%8a%a0%e8%bc%89%e6%95%b8%e6%93%9a%e5%ba%ab%e9%a9%85%e5%8b%95%e7%a8%8b%e5%ba%8f-lXJtaGdTjs\">\u52a0\u8f09\u6578\u64da\u5eab\u9a45\u52d5\u7a0b\u5e8f<\/h2>\n<p>\u5728Java\u4e2d\uff0c\u6578\u64da\u5eab\u9a45\u52d5\u7a0b\u5e8f\u662f\u7528\u65bc\u8207\u7279\u5b9a\u6578\u64da\u5eab\u9032\u884c\u901a\u4fe1\u7684\u985e\u3002\u901a\u5e38\uff0c\u9019\u4e9b\u9a45\u52d5\u7a0b\u5e8f\u6703\u4ee5jar\u5305\u7684\u5f62\u5f0f\u63d0\u4f9b\u3002\u958b\u767c\u8005\u9700\u8981\u5728\u61c9\u7528\u7a0b\u5e8f\u4e2d\u52a0\u8f09\u9019\u4e9b\u9a45\u52d5\u7a0b\u5e8f\uff0c\u4ee5\u4fbf\u80fd\u5920\u4f7f\u7528JDBC\uff08Java Database Connectivity\uff09API\u4f86\u9032\u884c\u6578\u64da\u5eab\u64cd\u4f5c\u3002<\/p>\n<pre><code>Class.forName(\"com.mysql.cj.jdbc.Driver\"); \/\/ \u52a0\u8f09MySQL\u9a45\u52d5<\/code><\/pre>\n<h2 id=\"%e5%bb%ba%e7%ab%8b%e6%95%b8%e6%93%9a%e5%ba%ab%e9%80%a3%e6%8e%a5-lXJtaGdTjs\">\u5efa\u7acb\u6578\u64da\u5eab\u9023\u63a5<\/h2>\n<p>\u4e00\u65e6\u9a45\u52d5\u7a0b\u5e8f\u88ab\u52a0\u8f09\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u4f7f\u7528DriverManager\u985e\u4f86\u5efa\u7acb\u8207\u6578\u64da\u5eab\u7684\u9023\u63a5\u3002\u9019\u901a\u5e38\u9700\u8981\u63d0\u4f9b\u6578\u64da\u5eab\u7684URL\u3001\u7528\u6236\u540d\u548c\u5bc6\u78bc\u3002<\/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<h2 id=\"%e5%9f%b7%e8%a1%8csql%e6%9f%a5%e8%a9%a2-lXJtaGdTjs\">\u57f7\u884cSQL\u67e5\u8a62<\/h2>\n<p>\u9023\u63a5\u5efa\u7acb\u5f8c\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u4f7f\u7528Statement\u6216PreparedStatement\u5c0d\u8c61\u4f86\u57f7\u884cSQL\u67e5\u8a62\u3002\u9019\u4e9b\u5c0d\u8c61\u63d0\u4f9b\u4e86\u57f7\u884c\u67e5\u8a62\u548c\u66f4\u65b0\u6578\u64da\u7684\u529f\u80fd\u3002<\/p>\n<pre><code>Statement statement = connection.createStatement();\nResultSet resultSet = statement.executeQuery(\"SELECT * FROM users\");<\/code><\/pre>\n<h2 id=\"%e8%99%95%e7%90%86%e7%b5%90%e6%9e%9c%e9%9b%86-lXJtaGdTjs\">\u8655\u7406\u7d50\u679c\u96c6<\/h2>\n<p>\u57f7\u884c\u67e5\u8a62\u5f8c\uff0c\u7d50\u679c\u96c6\u5c07\u8fd4\u56de\u67e5\u8a62\u7684\u7d50\u679c\u3002\u958b\u767c\u8005\u53ef\u4ee5\u901a\u904eResultSet\u5c0d\u8c61\u4f86\u904d\u6b77\u548c\u8655\u7406\u9019\u4e9b\u7d50\u679c\u3002<\/p>\n<pre><code>while (resultSet.next()) {\n    String username = resultSet.getString(\"username\");\n    System.out.println(\"User: \" + username);\n}<\/code><\/pre>\n<h2 id=\"%e9%97%9c%e9%96%89%e9%80%a3%e6%8e%a5-lXJtaGdTjs\">\u95dc\u9589\u9023\u63a5<\/h2>\n<p>\u5728\u5b8c\u6210\u6578\u64da\u5eab\u64cd\u4f5c\u5f8c\uff0c\u958b\u767c\u8005\u61c9\u8a72\u95dc\u9589ResultSet\u3001Statement\u548cConnection\u5c0d\u8c61\uff0c\u4ee5\u91cb\u653e\u8cc7\u6e90\u3002<\/p>\n<pre><code>resultSet.close();\nstatement.close();\nconnection.close();<\/code><\/pre>\n<h2 id=\"%e7%b8%bd%e7%b5%90-lXJtaGdTjs\">\u7e3d\u7d50<\/h2>\n<p>\u901a\u904e\u4ee5\u4e0a\u6b65\u9a5f\uff0c\u6211\u5011\u53ef\u4ee5\u770b\u5230jar\u5305\u5728Java\u61c9\u7528\u7a0b\u5e8f\u4e2d\u9023\u63a5\u6578\u64da\u5eab\u7684\u5de5\u4f5c\u539f\u7406\u3002\u5f9e\u52a0\u8f09\u9a45\u52d5\u7a0b\u5e8f\u5230\u57f7\u884c\u67e5\u8a62\uff0c\u6bcf\u4e00\u6b65\u90fd\u81f3\u95dc\u91cd\u8981\u3002\u4e86\u89e3\u9019\u4e9b\u57fa\u672c\u6982\u5ff5\u548c\u64cd\u4f5c\uff0c\u5c07\u6709\u52a9\u65bc\u958b\u767c\u8005\u66f4\u6709\u6548\u5730\u69cb\u5efa\u8207\u6578\u64da\u5eab\u4ea4\u4e92\u7684\u61c9\u7528\u7a0b\u5e8f\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>\u6df1\u5165\u4e86\u89e3jar\u5305\u5982\u4f55\u9023\u63a5\u6578\u64da\u5eab\u7684\u5de5\u4f5c\u539f\u7406\uff0c\u63a2\u7d22\u5176\u80cc\u5f8c\u7684\u6280\u8853\u7d30\u7bc0\u8207\u5be6\u73fe\u904e\u7a0b\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-180646","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/180646","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=180646"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/180646\/revisions"}],"predecessor-version":[{"id":180647,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/180646\/revisions\/180647"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=180646"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=180646"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=180646"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}