{"id":46898,"date":"2024-12-02T08:00:32","date_gmt":"2024-12-02T00:00:32","guid":{"rendered":"https:\/\/fwq.ai\/blog\/46898\/"},"modified":"2024-12-02T08:00:32","modified_gmt":"2024-12-02T00:00:32","slug":"%e5%a6%82%e4%bd%95%e4%bd%bf%e7%94%a8-java-%e5%87%bd%e6%95%b0%e4%b8%8e%e5%a4%96%e9%83%a8%e6%95%b0%e6%8d%ae%e6%ba%90%e9%9b%86%e6%88%90%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/46898\/","title":{"rendered":"\u5982\u4f55\u4f7f\u7528 Java \u51fd\u6570\u4e0e\u5916\u90e8\u6570\u636e\u6e90\u96c6\u6210\uff1f"},"content":{"rendered":"<p><b><\/b>     <\/p>\n<h1>\u5982\u4f55\u4f7f\u7528 Java \u51fd\u6570\u4e0e\u5916\u90e8\u6570\u636e\u6e90\u96c6\u6210\uff1f<\/h1>\n<p>\u5927\u5bb6\u597d\uff0c\u4eca\u5929\u672c\u4eba\u7ed9\u5927\u5bb6\u5e26\u6765\u6587\u7ae0<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u300a\u5982\u4f55\u4f7f\u7528 Java \u51fd\u6570\u4e0e\u5916\u90e8\u6570\u636e\u6e90\u96c6\u6210\uff1f\u300b<\/span>\uff0c\u6587\u4e2d\u5185\u5bb9\u4e3b\u8981\u6d89\u53ca\u5230<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\"><span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\"><\/span><\/span>\uff0c\u5982\u679c\u4f60\u5bf9<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u6587\u7ae0<\/span>\u65b9\u9762\u7684\u77e5\u8bc6\u70b9\u611f\u5174\u8da3\uff0c\u90a3\u5c31\u8bf7\u5404\u4f4d\u670b\u53cb\u7ee7\u7eed\u770b\u4e0b\u53bb\u5427~\u5e0c\u671b\u80fd\u771f\u6b63\u5e2e\u5230\u4f60\u4eec\uff0c\u8c22\u8c22\uff01<\/p>\n<p>Java \u51fd\u6570\u53ef\u8f7b\u677e\u4e0e\u5916\u90e8\u6570\u636e\u6e90\u96c6\u6210\uff0c\u5305\u62ec\uff1a\u8fde\u63a5\u5230\u6570\u636e\u5e93\uff08\u4f8b\u5982 MySQL\uff09\u8bfb\u53d6\u8868\u6570\u636e\uff08\u4f7f\u7528 JDBC API\uff09\u8c03\u7528 REST API\uff08\u4f7f\u7528 HTTP \u8bf7\u6c42\uff09\u89e3\u6790 API \u54cd\u5e94\uff08\u4f7f\u7528 JSON \u5904\u7406\u5e93\uff09\u5c06\u6570\u636e\u8fd4\u56de\u7ed9\u5ba2\u6237\u7aef\uff08\u901a\u8fc7 HTTP \u54cd\u5e94\u6216\u4e8b\u4ef6\u6d41\uff09<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241026\/1729934613671cb51511712.jpg\" class=\"aligncenter\" title=\"\u5982\u4f55\u4f7f\u7528 Java \u51fd\u6570\u4e0e\u5916\u90e8\u6570\u636e\u6e90\u96c6\u6210\uff1f\u63d2\u56fe\" alt=\"\u5982\u4f55\u4f7f\u7528 Java \u51fd\u6570\u4e0e\u5916\u90e8\u6570\u636e\u6e90\u96c6\u6210\uff1f\u63d2\u56fe\" \/><\/p>\n<p><strong>\u4f7f\u7528 Java \u51fd\u6570\u4e0e\u5916\u90e8\u6570\u636e\u6e90\u96c6\u6210<\/strong><\/p>\n<p>Java \u51fd\u6570\u662f\u65e0\u670d\u52a1\u5668\u5e94\u7528\u7a0b\u5e8f\uff0c\u53ef\u8f7b\u677e\u4e0e\u5404\u79cd\u5916\u90e8\u6570\u636e\u6e90\u96c6\u6210\uff0c\u4ece\u800c\u4e3a\u60a8\u7684\u5e94\u7528\u7a0b\u5e8f\u589e\u6dfb\u6570\u636e\u9a71\u52a8\u7684\u529f\u80fd\u3002<\/p>\n<p><strong>\u8fde\u63a5\u5230\u6570\u636e\u5e93<\/strong><\/p>\n<p>\u4f7f\u7528 Java \u51fd\u6570\u8fde\u63a5\u5230\u5173\u7cfb\u6570\u636e\u5e93\u975e\u5e38\u7b80\u5355\u3002\u4f8b\u5982\uff0c\u8981\u8fde\u63a5\u5230 MySQL \u6570\u636e\u5e93\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u4ee3\u7801\uff1a<\/p>\n<pre>import com.zaxxer.hikari.HikariConfig;\nimport com.zaxxer.hikari.HikariDataSource;\n\npublic class DbConnectionPool {\n\n    private static HikariConfig config = new HikariConfig();\n    private static HikariDataSource ds;\n\n    static {\n        \/\/ \u8bbe\u7f6e\u6570\u636e\u5e93\u8fde\u63a5\u4fe1\u606f\n        config.setJdbcUrl(\"jdbc:mysql:\/\/localhost:3306\/database\");\n        config.setUsername(\"user\");\n        config.setPassword(\"password\");\n\n        \/\/ \u521b\u5efa\u6570\u636e\u6e90\n        ds = new HikariDataSource(config);\n    }\n\n    public static Connection getConnection() {\n        try {\n            return ds.getConnection();\n        } catch (SQLException e) {\n            e.printStackTrace();\n            return null;\n        }\n    }\n}<\/pre>\n<p><strong>\u8bfb\u53d6\u8868\u6570\u636e<\/strong><\/p>\n<p>\u8fde\u63a5\u5230\u6570\u636e\u5e93\u540e\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528 Java Database Connectivity (JDBC) API \u8bfb\u53d6\u8868\u6570\u636e\u3002\u4f8b\u5982\uff1a<\/p>\n<pre>Connection conn = DbConnectionPool.getConnection();\nPreparedStatement stmt = conn.prepareStatement(\"SELECT * FROM employees\");\nResultSet rs = stmt.executeQuery();\n\nwhile (rs.next()) {\n    System.out.println(rs.getString(\"name\") + \" \" + rs.getInt(\"age\"));\n}<\/pre>\n<p><strong>\u5b9e\u6218\u6848\u4f8b\uff1a\u5b9e\u65f6\u6570\u636e\u53ef\u89c6\u5316<\/strong><\/p>\n<p>\u53ef\u4ee5\u4f7f\u7528 Java \u51fd\u6570\u4ece\u6570\u636e\u5e93\u63d0\u53d6\u6570\u636e\u5e76\u5c06\u5176\u63a8\u9001\u5230\u53ef\u89c6\u5316\u5de5\u5177\u4e2d\uff0c\u4f8b\u5982 Google Cloud \u7684 Data Studio\u3002<\/p>\n<p><strong>\u8c03\u7528 REST API<\/strong><\/p>\n<p>Java \u51fd\u6570\u8fd8\u53ef\u4ee5\u901a\u8fc7 HTTP \u8bf7\u6c42\u8c03\u7528\u5916\u90e8 REST API\u3002\u4f8b\u5982\uff0c\u8981\u8c03\u7528\u5929\u6c14 API\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u4ee3\u7801\uff1a<\/p>\n<pre>import java.io.IOException;\nimport java.net.URI;\nimport java.net.http.HttpClient;\nimport java.net.http.HttpRequest;\nimport java.net.http.HttpResponse;\n\npublic class RestApiCaller {\n\n    public static String callApi(String url) {\n        try {\n            \/\/ \u521b\u5efa HTTP \u5ba2\u6237\u7aef\n            HttpClient client = HttpClient.newHttpClient();\n\n            \/\/ \u521b\u5efa HTTP \u8bf7\u6c42\n            HttpRequest request = HttpRequest.newBuilder()\n                .uri(URI.create(url))\n                .build();\n\n            \/\/ \u53d1\u9001 HTTP \u8bf7\u6c42\u5e76\u83b7\u53d6\u54cd\u5e94\n            HttpResponse&lt;String&gt; response = client.send(request, HttpResponse.BodyHandlers.ofString());\n\n            \/\/ \u8fd4\u56de\u54cd\u5e94\u4f53\n            return response.body();\n        } catch (IOException | InterruptedException e) {\n            e.printStackTrace();\n            return null;\n        }\n    }\n}<\/pre>\n<p><strong>\u5904\u7406 API \u54cd\u5e94<\/strong><\/p>\n<p>\u83b7\u5f97 API \u54cd\u5e94\u540e\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528 Java \u7684 JSON \u5904\u7406\u5e93\uff08\u4f8b\u5982 Jackson\uff09\u6765\u89e3\u6790 JSON \u54cd\u5e94\u5e76\u63d0\u53d6\u6240\u9700\u7684\u6570\u636e\u3002<\/p>\n<p><strong>\u5c06\u6570\u636e\u8fd4\u56de\u7ed9\u5ba2\u6237\u7aef<\/strong><\/p>\n<p>\u6700\u540e\uff0c\u60a8\u53ef\u4ee5\u5c06\u4ece\u5916\u90e8\u6570\u636e\u6e90\u6536\u96c6\u7684\u6570\u636e\u8fd4\u56de\u7ed9\u8c03\u7528\u60a8\u7684 Java \u51fd\u6570\u7684\u5ba2\u6237\u7aef\u3002\u8fd9\u53ef\u4ee5\u901a\u8fc7 HTTP \u54cd\u5e94\u3001\u4e8b\u4ef6\u6d41\u6216\u5176\u4ed6\u673a\u5236\u6765\u5b9e\u73b0\u3002<\/p>\n<p>\u5230\u8fd9\u91cc\uff0c\u6211\u4eec\u4e5f\u5c31\u8bb2\u5b8c\u4e86\u300a\u5982\u4f55\u4f7f\u7528 Java \u51fd\u6570\u4e0e\u5916\u90e8\u6570\u636e\u6e90\u96c6\u6210\uff1f\u300b\u7684\u5185\u5bb9\u4e86\u3002\u4e2a\u4eba\u8ba4\u4e3a\uff0c\u57fa\u7840\u77e5\u8bc6\u7684\u5b66\u4e60\u548c\u5de9\u56fa\uff0c\u662f\u4e3a\u4e86\u66f4\u597d\u7684\u5c06\u5176\u8fd0\u7528\u5230\u9879\u76ee\u4e2d\uff0c\u6b22\u8fce\u5173\u6ce8\u7c73\u4e91\u516c\u4f17\u53f7\uff0c\u5e26\u4f60\u4e86\u89e3\u66f4\u591a\u5173\u4e8ejava,\u6570\u636e\u6e90\u96c6\u6210\u7684\u77e5\u8bc6\u70b9\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5982\u4f55\u4f7f\u7528 Java \u51fd\u6570\u4e0e\u5916\u90e8\u6570\u636e\u6e90\u96c6\u6210\uff1f \u5927\u5bb6\u597d\uff0c\u4eca\u5929\u672c\u4eba\u7ed9\u5927\u5bb6\u5e26\u6765\u6587\u7ae0\u300a\u5982\u4f55\u4f7f\u7528 Java \u51fd\u6570\u4e0e\u5916\u90e8\u6570\u636e\u6e90\u96c6\u6210\uff1f\u300b\uff0c\u6587\u4e2d\u5185\u5bb9\u4e3b\u8981\u6d89\u53ca\u5230\uff0c\u5982\u679c\u4f60\u5bf9\u6587\u7ae0\u65b9\u9762\u7684\u77e5\u8bc6\u70b9\u611f\u5174\u8da3\uff0c\u90a3\u5c31\u8bf7\u5404\u4f4d\u670b\u53cb\u7ee7\u7eed\u770b\u4e0b\u53bb\u5427~\u5e0c\u671b\u80fd\u771f\u6b63\u5e2e\u5230\u4f60\u4eec\uff0c\u8c22\u8c22\uff01 Java \u51fd\u6570\u53ef\u8f7b\u677e\u4e0e\u5916\u90e8\u6570\u636e\u6e90\u96c6\u6210\uff0c\u5305\u62ec\uff1a\u8fde\u63a5\u5230\u6570\u636e\u5e93\uff08\u4f8b\u5982 MySQL\uff09\u8bfb\u53d6\u8868\u6570\u636e\uff08\u4f7f\u7528 JDBC API\uff09\u8c03\u7528 REST API\uff08\u4f7f\u7528 HTTP \u8bf7\u6c42\uff09\u89e3\u6790 API \u54cd\u5e94\uff08\u4f7f\u7528 JSON \u5904\u7406\u5e93\uff09\u5c06\u6570\u636e\u8fd4\u56de\u7ed9\u5ba2\u6237\u7aef\uff08\u901a\u8fc7 HTTP \u54cd\u5e94\u6216\u4e8b\u4ef6\u6d41\uff09 \u4f7f\u7528 Java \u51fd\u6570\u4e0e\u5916\u90e8\u6570\u636e\u6e90\u96c6\u6210 Java \u51fd\u6570\u662f\u65e0\u670d\u52a1\u5668\u5e94\u7528\u7a0b\u5e8f\uff0c\u53ef\u8f7b\u677e\u4e0e\u5404\u79cd\u5916\u90e8\u6570\u636e\u6e90\u96c6\u6210\uff0c\u4ece\u800c\u4e3a\u60a8\u7684\u5e94\u7528\u7a0b\u5e8f\u589e\u6dfb\u6570\u636e\u9a71\u52a8\u7684\u529f\u80fd\u3002 \u8fde\u63a5\u5230\u6570\u636e\u5e93 \u4f7f\u7528 Java \u51fd\u6570\u8fde\u63a5\u5230\u5173\u7cfb\u6570\u636e\u5e93\u975e\u5e38\u7b80\u5355\u3002\u4f8b\u5982\uff0c\u8981\u8fde\u63a5\u5230 MySQL \u6570\u636e\u5e93\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u4ee3\u7801\uff1a import com.zaxxer.hikari.HikariConfig; import com.zaxxer.hikari.HikariDataSource; public class DbConnectionPool { private static HikariConfig config = new HikariConfig(); private static HikariDataSource ds; static { \/\/ \u8bbe\u7f6e\u6570\u636e\u5e93\u8fde\u63a5\u4fe1\u606f [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16],"tags":[],"class_list":["post-46898","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/46898","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/comments?post=46898"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/46898\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=46898"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=46898"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=46898"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}