{"id":62071,"date":"2024-10-13T15:56:17","date_gmt":"2024-10-13T07:56:17","guid":{"rendered":"https:\/\/server.hk\/cnblog\/62071\/"},"modified":"2024-10-13T15:56:17","modified_gmt":"2024-10-13T07:56:17","slug":"java%e6%95%b8%e6%93%9a%e5%ba%ab%e6%9f%a5%e8%a9%a2%e6%8f%9b%e8%a1%8c%e7%ac%a6%e8%a8%ad%e7%bd%ae-java%e6%95%b8%e6%93%9a%e5%ba%ab%e6%8f%9b%e8%a1%8c%e7%ac%a6","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/62071\/","title":{"rendered":"Java\u6578\u64da\u5eab\u67e5\u8a62\u63db\u884c\u7b26\u8a2d\u7f6e (java\u6578\u64da\u5eab\u63db\u884c\u7b26)"},"content":{"rendered":"<h1 id=\"java%e6%95%b8%e6%93%9a%e5%ba%ab%e6%9f%a5%e8%a9%a2%e6%8f%9b%e8%a1%8c%e7%ac%a6%e8%a8%ad%e7%bd%ae-java%e6%95%b8%e6%93%9a%e5%ba%ab%e6%8f%9b%e8%a1%8c%e7%ac%a6-NprmshdOlN\">Java\u6578\u64da\u5eab\u67e5\u8a62\u63db\u884c\u7b26\u8a2d\u7f6e 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id=\"%e6%8f%9b%e8%a1%8c%e7%ac%a6%e7%9a%84%e5%9f%ba%e6%9c%ac%e6%a6%82%e5%bf%b5-NprmshdOlN\">\u63db\u884c\u7b26\u7684\u57fa\u672c\u6982\u5ff5<\/h2>\n<p>\u63db\u884c\u7b26\u662f\u7528\u4f86\u8868\u793a\u6587\u672c\u4e2d\u65b7\u884c\u7684\u7279\u6b8a\u5b57\u7b26\u3002\u5728\u4e0d\u540c\u7684\u64cd\u4f5c\u7cfb\u7d71\u4e2d\uff0c\u63db\u884c\u7b26\u7684\u8868\u793a\u65b9\u5f0f\u6709\u6240\u4e0d\u540c\u3002\u4f8b\u5982\uff0cWindows\u7cfb\u7d71\u4f7f\u7528\u56de\u8eca\u52a0\u63db\u884c\uff08rn\uff09\uff0c\u800cUnix\/Linux\u7cfb\u7d71\u5247\u4f7f\u7528\u55ae\u4e00\u7684\u63db\u884c\u7b26\uff08n\uff09\u3002\u5728Java\u4e2d\uff0c\u901a\u5e38\u4f7f\u7528n\u4f86\u8868\u793a\u63db\u884c\u7b26\u3002<\/p>\n<h2 id=\"%e5%9c%a8java%e4%b8%ad%e6%9f%a5%e8%a9%a2%e6%95%b8%e6%93%9a%e5%ba%ab-NprmshdOlN\">\u5728Java\u4e2d\u67e5\u8a62\u6578\u64da\u5eab<\/h2>\n<p>\u5728Java\u4e2d\uff0c\u4f7f\u7528JDBC\uff08Java Database Connectivity\uff09\u4f86\u9023\u63a5\u548c\u67e5\u8a62\u6578\u64da\u5eab\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684\u793a\u4f8b\uff0c\u5c55\u793a\u5982\u4f55\u5f9e\u6578\u64da\u5eab\u4e2d\u67e5\u8a62\u6578\u64da\u4e26\u8655\u7406\u63db\u884c\u7b26\u3002<\/p>\n<pre><code>import java.sql.Connection;\nimport java.sql.DriverManager;\nimport java.sql.ResultSet;\nimport java.sql.Statement;\n\npublic class DatabaseQuery {\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 {\n            Connection connection = DriverManager.getConnection(url, user, password);\n            Statement statement = connection.createStatement();\n            String query = \"SELECT content FROM your_table\";\n            ResultSet resultSet = statement.executeQuery(query);\n\n            while (resultSet.next()) {\n                String content = resultSet.getString(\"content\");\n                \/\/ \u5c07\u5167\u5bb9\u4e2d\u7684\u63db\u884c\u7b26\u66ff\u63db\u70baHTML\u7684\u63db\u884c\u6a19\u7c64\n                content = content.replace(\"n\", \"<br \/>\");\n                System.out.println(content);\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=\"%e6%8f%9b%e8%a1%8c%e7%ac%a6%e7%9a%84%e8%99%95%e7%90%86-NprmshdOlN\">\u63db\u884c\u7b26\u7684\u8655\u7406<\/h2>\n<p>\u5728\u4e0a\u9762\u7684\u4ee3\u78bc\u793a\u4f8b\u4e2d\uff0c\u6211\u5011\u5f9e\u6578\u64da\u5eab\u4e2d\u67e5\u8a62\u4e86\u4e00\u500b\u540d\u70ba\u201ccontent\u201d\u7684\u5b57\u6bb5\u3002\u7531\u65bc\u6578\u64da\u5eab\u4e2d\u7684\u6587\u672c\u53ef\u80fd\u5305\u542b\u63db\u884c\u7b26\uff0c\u6211\u5011\u4f7f\u7528\u4e86String\u7684replace\u65b9\u6cd5\u5c07\u63db\u884c\u7b26\u66ff\u63db\u70baHTML\u7684\u63db\u884c\u6a19\u7c64\uff08<br \/>\uff09\u3002\u9019\u6a23\u505a\u7684\u76ee\u7684\u662f\u70ba\u4e86\u5728\u7db2\u9801\u4e0a\u6b63\u78ba\u986f\u793a\u6587\u672c\u7684\u683c\u5f0f\u3002<\/p>\n<h3 id=\"%e6%b3%a8%e6%84%8f%e4%ba%8b%e9%a0%85-NprmshdOlN\">\u6ce8\u610f\u4e8b\u9805<\/h3>\n<ul>\n<li>\u78ba\u4fdd\u6578\u64da\u5eab\u4e2d\u7684\u6587\u672c\u683c\u5f0f\u6b63\u78ba\uff0c\u907f\u514d\u51fa\u73fe\u591a\u9918\u7684\u63db\u884c\u7b26\u3002<\/li>\n<li>\u5728\u8655\u7406\u7528\u6236\u8f38\u5165\u7684\u6587\u672c\u6642\uff0c\u61c9\u8003\u616e\u5230\u5b89\u5168\u6027\uff0c\u9632\u6b62XSS\u653b\u64ca\u3002<\/li>\n<li>\u6839\u64da\u4e0d\u540c\u7684\u986f\u793a\u9700\u6c42\uff0c\u9078\u64c7\u5408\u9069\u7684\u63db\u884c\u7b26\u8655\u7406\u65b9\u5f0f\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b5%90%e8%ab%96-NprmshdOlN\">\u7d50\u8ad6<\/h2>\n<p>\u5728Java\u4e2d\u8a2d\u7f6e\u6578\u64da\u5eab\u67e5\u8a62\u7684\u63db\u884c\u7b26\u662f\u4e00\u500b\u91cd\u8981\u7684\u6b65\u9a5f\uff0c\u7279\u5225\u662f\u5728\u8655\u7406\u591a\u884c\u6587\u672c\u6642\u3002\u901a\u904e\u6b63\u78ba\u7684\u63db\u884c\u7b26\u8655\u7406\uff0c\u53ef\u4ee5\u78ba\u4fdd\u6578\u64da\u5728\u986f\u793a\u6642\u7684\u53ef\u8b80\u6027\u548c\u683c\u5f0f\u5316\u3002\u5e0c\u671b\u672c\u6587\u80fd\u5e6b\u52a9\u958b\u767c\u8005\u66f4\u597d\u5730\u7406\u89e3\u548c\u61c9\u7528Java\u4e2d\u7684\u6578\u64da\u5eab\u67e5\u8a62\u63db\u884c\u7b26\u8a2d\u7f6e\u3002<\/p>\n<h2 id=\"%e7%b8%bd%e7%b5%90-NprmshdOlN\">\u7e3d\u7d50<\/h2>\n<p>\u5728Java\u958b\u767c\u4e2d\uff0c\u6b63\u78ba\u8655\u7406\u6578\u64da\u5eab\u67e5\u8a62\u7684\u63db\u884c\u7b26\u662f\u63d0\u5347\u7528\u6236\u9ad4\u9a57\u7684\u91cd\u8981\u4e00\u74b0\u3002\u7121\u8ad6\u662f\u4f7f\u7528JDBC\u9032\u884c\u6578\u64da\u5eab\u64cd\u4f5c\uff0c\u9084\u662f\u5c0d\u67e5\u8a62\u7d50\u679c\u9032\u884c\u683c\u5f0f\u5316\uff0c\u4e86\u89e3\u63db\u884c\u7b26\u7684\u4f7f\u7528\u548c\u8655\u7406\u65b9\u6cd5\u90fd\u81f3\u95dc\u91cd\u8981\u3002\u5982\u679c\u60a8\u9700\u8981\u9ad8\u6548\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u89e3\u6c7a\u65b9\u6848\u4f86\u652f\u6301\u60a8\u7684Java\u61c9\u7528\uff0c\u8acb\u8003\u616e\u6211\u5011\u7684\u670d\u52d9\uff0c\u63d0\u4f9b\u7a69\u5b9a\u7684 <a href=\"https:\/\/server.hk\">\u9999\u6e2f\u4f3a\u670d\u5668<\/a> \u548c\u512a\u8cea\u7684\u6280\u8853\u652f\u6301\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3\u5982\u4f55\u5728Java\u4e2d\u8a2d\u7f6e\u6578\u64da\u5eab\u67e5\u8a62\u7684\u63db\u884c\u7b26\uff0c\u63d0\u5347\u6578\u64da\u986f\u793a\u7684\u53ef\u8b80\u6027\u8207\u683c\u5f0f\u5316\u6548\u679c\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-62071","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/62071","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=62071"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/62071\/revisions"}],"predecessor-version":[{"id":62072,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/62071\/revisions\/62072"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=62071"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=62071"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=62071"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}