{"id":61853,"date":"2024-10-13T14:13:16","date_gmt":"2024-10-13T06:13:16","guid":{"rendered":"https:\/\/server.hk\/cnblog\/61853\/"},"modified":"2024-10-13T14:13:16","modified_gmt":"2024-10-13T06:13:16","slug":"javaee%e4%b8%ad%e5%a6%82%e4%bd%95%e5%af%a6%e7%8f%be%e6%95%b8%e6%93%9a%e5%ba%ab%e9%80%a3%e6%8e%a5%ef%bc%9f-javaee%e6%95%b8%e6%93%9a%e5%ba%ab%e9%80%a3%e6%8e%a5","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/61853\/","title":{"rendered":"JavaEE\u4e2d\u5982\u4f55\u5be6\u73fe\u6578\u64da\u5eab\u9023\u63a5\uff1f (javaee\u6578\u64da\u5eab\u9023\u63a5)"},"content":{"rendered":"<h1 id=\"javaee%e4%b8%ad%e5%a6%82%e4%bd%95%e5%af%a6%e7%8f%be%e6%95%b8%e6%93%9a%e5%ba%ab%e9%80%a3%e6%8e%a5%ef%bc%9f-ZwCyyrMMei\">JavaEE\u4e2d\u5982\u4f55\u5be6\u73fe\u6578\u64da\u5eab\u9023\u63a5\uff1f<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u61c9\u7528\u7a0b\u5e8f\u958b\u767c\u4e2d\uff0c\u6578\u64da\u5eab\u9023\u63a5\u662f\u4e0d\u53ef\u6216\u7f3a\u7684\u4e00\u90e8\u5206\u3002JavaEE\uff08Java Platform, Enterprise Edition\uff09\u63d0\u4f9b\u4e86\u4e00\u7cfb\u5217\u7684API\u548c\u5de5\u5177\u4f86\u7c21\u5316\u6578\u64da\u5eab\u7684\u64cd\u4f5c\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u5728JavaEE\u4e2d\u5be6\u73fe\u6578\u64da\u5eab\u9023\u63a5\uff0c\u4e26\u63d0\u4f9b\u4e00\u4e9b\u5be6\u7528\u7684\u793a\u4f8b\u548c\u4ee3\u78bc\u7247\u6bb5\u3002<\/p>\n<h2 id=\"1-%e7%9e%ad%e8%a7%a3javaee%e4%b8%ad%e7%9a%84%e6%95%b8%e6%93%9a%e5%ba%ab%e9%80%a3%e6%8e%a5-ZwCyyrMMei\">1. \u77ad\u89e3JavaEE\u4e2d\u7684\u6578\u64da\u5eab\u9023\u63a5<\/h2>\n<p>JavaEE\u4f7f\u7528Java Database Connectivity\uff08JDBC\uff09\u4f86\u5be6\u73fe\u8207\u6578\u64da\u5eab\u7684\u9023\u63a5\u3002JDBC\u662f\u4e00\u500bJava API\uff0c\u5141\u8a31Java\u61c9\u7528\u7a0b\u5e8f\u8207\u5404\u7a2e\u6578\u64da\u5eab\u9032\u884c\u4ea4\u4e92\u3002JavaEE\u9084\u63d0\u4f9b\u4e86Java Persistence API\uff08JPA\uff09\uff0c\u9019\u662f\u4e00\u500b\u66f4\u9ad8\u5c64\u6b21\u7684API\uff0c\u65e8\u5728\u7c21\u5316\u6578\u64da\u5eab\u64cd\u4f5c\u3002<\/p>\n<h2 id=\"2-%e8%a8%ad%e7%bd%ae%e6%95%b8%e6%93%9a%e5%ba%ab%e9%80%a3%e6%8e%a5-ZwCyyrMMei\">2. \u8a2d\u7f6e\u6578\u64da\u5eab\u9023\u63a5<\/h2>\n<p>\u5728JavaEE\u4e2d\uff0c\u8a2d\u7f6e\u6578\u64da\u5eab\u9023\u63a5\u901a\u5e38\u6d89\u53ca\u4ee5\u4e0b\u5e7e\u500b\u6b65\u9a5f\uff1a<\/p>\n<ul>\n<li>\u9078\u64c7\u6578\u64da\u5eab\u9a45\u52d5\u7a0b\u5e8f<\/li>\n<li>\u914d\u7f6e\u6578\u64da\u6e90<\/li>\n<li>\u4f7f\u7528JDBC\u6216JPA\u9032\u884c\u6578\u64da\u5eab\u64cd\u4f5c<\/li>\n<\/ul>\n<h3 id=\"2-1-%e9%81%b8%e6%93%87%e6%95%b8%e6%93%9a%e5%ba%ab%e9%a9%85%e5%8b%95%e7%a8%8b%e5%ba%8f-ZwCyyrMMei\">2.1 \u9078\u64c7\u6578\u64da\u5eab\u9a45\u52d5\u7a0b\u5e8f<\/h3>\n<p>\u9996\u5148\uff0c\u60a8\u9700\u8981\u9078\u64c7\u9069\u5408\u60a8\u6578\u64da\u5eab\u7684JDBC\u9a45\u52d5\u7a0b\u5e8f\u3002\u4f8b\u5982\uff0c\u5982\u679c\u60a8\u4f7f\u7528MySQL\u6578\u64da\u5eab\uff0c\u5247\u9700\u8981\u4e0b\u8f09MySQL Connector\/J\u9a45\u52d5\u7a0b\u5e8f\u3002<\/p>\n<h3 id=\"2-2-%e9%85%8d%e7%bd%ae%e6%95%b8%e6%93%9a%e6%ba%90-ZwCyyrMMei\">2.2 \u914d\u7f6e\u6578\u64da\u6e90<\/h3>\n<p>\u5728JavaEE\u61c9\u7528\u4e2d\uff0c\u901a\u5e38\u6703\u5728\u61c9\u7528\u4f3a\u670d\u5668\u4e2d\u914d\u7f6e\u6578\u64da\u6e90\u3002\u9019\u6a23\u53ef\u4ee5\u7c21\u5316\u6578\u64da\u5eab\u9023\u63a5\u7684\u7ba1\u7406\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u5728GlassFish\u4f3a\u670d\u5668\u4e2d\u914d\u7f6e\u6578\u64da\u6e90\u7684\u793a\u4f8b\uff1a<\/p>\n<pre><code>\n1. \u767b\u9304\u5230GlassFish\u7ba1\u7406\u63a7\u5236\u53f0\u3002\n2. \u9078\u64c7\u201cResources\u201d &gt; \u201cJDBC\u201d &gt; \u201cJDBC Resources\u201d\u3002\n3. \u9ede\u64ca\u201cNew\u201d\u4f86\u5275\u5efa\u65b0\u7684JDBC\u8cc7\u6e90\u3002\n4. \u586b\u5beb\u5fc5\u8981\u7684\u53c3\u6578\uff0c\u5982JNDI\u540d\u7a31\u3001\u6578\u64da\u5eabURL\u3001\u7528\u6236\u540d\u548c\u5bc6\u78bc\u3002\n<\/code><\/pre>\n<h3 id=\"2-3-%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-ZwCyyrMMei\">2.3 \u4f7f\u7528JDBC\u9032\u884c\u6578\u64da\u5eab\u64cd\u4f5c<\/h3>\n<p>\u4e00\u65e6\u6578\u64da\u6e90\u914d\u7f6e\u5b8c\u6210\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528JDBC\u4f86\u9032\u884c\u6578\u64da\u5eab\u64cd\u4f5c\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684\u793a\u4f8b\uff0c\u5c55\u793a\u5982\u4f55\u4f7f\u7528JDBC\u9023\u63a5\u5230\u6578\u64da\u5eab\u4e26\u57f7\u884c\u67e5\u8a62\uff1a<\/p>\n<pre><code>\nimport java.sql.Connection;\nimport java.sql.DriverManager;\nimport java.sql.ResultSet;\nimport java.sql.Statement;\n\npublic class DatabaseExample {\n    public static void main(String[] args) {\n        String url = \"jdbc:mysql:\/\/localhost:3306\/yourdatabase\";\n        String user = \"yourusername\";\n        String password = \"yourpassword\";\n\n        try {\n            Connection connection = DriverManager.getConnection(url, user, password);\n            Statement statement = connection.createStatement();\n            ResultSet resultSet = statement.executeQuery(\"SELECT * FROM yourtable\");\n\n            while (resultSet.next()) {\n                System.out.println(\"Column1: \" + resultSet.getString(\"column1\"));\n            }\n\n            resultSet.close();\n            statement.close();\n            connection.close();\n        } catch (Exception e) {\n            e.printStackTrace();\n        }\n    }\n}\n<\/code><\/pre>\n<h2 id=\"3-%e4%bd%bf%e7%94%a8jpa%e9%80%b2%e8%a1%8c%e6%95%b8%e6%93%9a%e5%ba%ab%e6%93%8d%e4%bd%9c-ZwCyyrMMei\">3. 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emf.close();\n    }\n}\n<\/code><\/pre>\n<h2 id=\"4-%e7%b8%bd%e7%b5%90-ZwCyyrMMei\">4. \u7e3d\u7d50<\/h2>\n<p>\u5728JavaEE\u4e2d\uff0c\u5be6\u73fe\u6578\u64da\u5eab\u9023\u63a5\u7684\u904e\u7a0b\u76f8\u5c0d\u7c21\u55ae\uff0c\u7121\u8ad6\u662f\u4f7f\u7528JDBC\u9084\u662fJPA\uff0c\u90fd\u80fd\u5920\u6709\u6548\u5730\u8207\u6578\u64da\u5eab\u9032\u884c\u4ea4\u4e92\u3002\u901a\u904e\u6b63\u78ba\u914d\u7f6e\u6578\u64da\u6e90\u548c\u4f7f\u7528\u5408\u9069\u7684API\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u8f15\u9b06\u5730\u9032\u884c\u6578\u64da\u5eab\u64cd\u4f5c\u3002<\/p>\n<p>\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u7a69\u5b9a\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u89e3\u6c7a\u65b9\u6848\u4f86\u90e8\u7f72\u60a8\u7684JavaEE\u61c9\u7528\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\u985e\u578b\u7684 <a href=\"https:\/\/server.hk\">\u4f3a\u670d\u5668<\/a>\uff0c\u6211\u5011\u90fd\u80fd\u70ba\u60a8\u63d0\u4f9b\u652f\u6301\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3\u5982\u4f55\u5728JavaEE\u4e2d\u5be6\u73fe\u6578\u64da\u5eab\u9023\u63a5\uff0c\u5305\u62ecJDBC\u914d\u7f6e\u3001\u6578\u64da\u6e90\u8a2d\u7f6e\u53ca\u9023\u63a5\u6c60\u7684\u4f7f\u7528\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-61853","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/61853","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=61853"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/61853\/revisions"}],"predecessor-version":[{"id":61854,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/61853\/revisions\/61854"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=61853"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=61853"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=61853"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}