{"id":160821,"date":"2024-11-04T01:17:26","date_gmt":"2024-11-03T17:17:26","guid":{"rendered":"https:\/\/server.hk\/cnblog\/160821\/"},"modified":"2024-11-04T01:17:27","modified_gmt":"2024-11-03T17:17:27","slug":"%e8%b3%87%e6%96%99%e5%ba%ab%e6%95%99%e7%a8%8b%ef%bc%9a%e5%b8%b8%e7%94%a8%e8%b3%87%e6%96%99%e5%ba%ab%e8%a8%aa%e5%95%8f%e6%8e%a5%e5%8f%a3%e7%b0%a1%e4%bb%8b","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/160821\/","title":{"rendered":"\u8cc7\u6599\u5eab\u6559\u7a0b\uff1a\u5e38\u7528\u8cc7\u6599\u5eab\u8a2a\u554f\u63a5\u53e3\u7c21\u4ecb"},"content":{"rendered":"<h1 id=\"%e8%b3%87%e6%96%99%e5%ba%ab%e6%95%99%e7%a8%8b%ef%bc%9a%e5%b8%b8%e7%94%a8%e8%b3%87%e6%96%99%e5%ba%ab%e8%a8%aa%e5%95%8f%e6%8e%a5%e5%8f%a3%e7%b0%a1%e4%bb%8b-jVGeOzbXpb\">\u8cc7\u6599\u5eab\u6559\u7a0b\uff1a\u5e38\u7528\u8cc7\u6599\u5eab\u8a2a\u554f\u63a5\u53e3\u7c21\u4ecb<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u6578\u64da\u9a45\u52d5\u6642\u4ee3\uff0c\u8cc7\u6599\u5eab\u7684\u4f7f\u7528\u5df2\u6210\u70ba\u5404\u7a2e\u61c9\u7528\u7a0b\u5e8f\u548c\u7db2\u7ad9\u7684\u6838\u5fc3\u7d44\u6210\u90e8\u5206\u3002\u7121\u8ad6\u662f\u5c0f\u578b\u4f01\u696d\u9084\u662f\u5927\u578b\u4f01\u696d\uff0c\u8cc7\u6599\u5eab\u90fd\u626e\u6f14\u8457\u5b58\u5132\u548c\u7ba1\u7406\u6578\u64da\u7684\u91cd\u8981\u89d2\u8272\u3002\u672c\u6587\u5c07\u4ecb\u7d39\u5e7e\u7a2e\u5e38\u7528\u7684\u8cc7\u6599\u5eab\u8a2a\u554f\u63a5\u53e3\uff0c\u5e6b\u52a9\u958b\u767c\u8005\u66f4\u597d\u5730\u7406\u89e3\u5982\u4f55\u8207\u8cc7\u6599\u5eab\u9032\u884c\u4ea4\u4e92\u3002<\/p>\n<h2 id=\"1-%e8%b3%87%e6%96%99%e5%ba%ab%e8%a8%aa%e5%95%8f%e6%8e%a5%e5%8f%a3%e6%a6%82%e8%bf%b0-jVGeOzbXpb\">1. \u8cc7\u6599\u5eab\u8a2a\u554f\u63a5\u53e3\u6982\u8ff0<\/h2>\n<p>\u8cc7\u6599\u5eab\u8a2a\u554f\u63a5\u53e3\u662f\u6307\u7528\u65bc\u8207\u8cc7\u6599\u5eab\u9032\u884c\u901a\u4fe1\u7684\u7a0b\u5f0f\u78bc\u6216\u5354\u8b70\u3002\u9019\u4e9b\u63a5\u53e3\u5141\u8a31\u958b\u767c\u8005\u57f7\u884c\u67e5\u8a62\u3001\u66f4\u65b0\u548c\u7ba1\u7406\u8cc7\u6599\u5eab\u4e2d\u7684\u6578\u64da\u3002\u5e38\u898b\u7684\u8cc7\u6599\u5eab\u8a2a\u554f\u63a5\u53e3\u5305\u62ec\uff1a<\/p>\n<ul>\n<li>ODBC\uff08Open Database Connectivity\uff09<\/li>\n<li>JDBC\uff08Java Database Connectivity\uff09<\/li>\n<li>ADO.NET<\/li>\n<li>SQLAlchemy<\/li>\n<li>Entity Framework<\/li>\n<\/ul>\n<h2 id=\"2-odbc%ef%bc%88open-database-connectivity%ef%bc%89-jVGeOzbXpb\">2. ODBC\uff08Open Database Connectivity\uff09<\/h2>\n<p>ODBC\u662f\u4e00\u7a2e\u6a19\u6e96\u7684\u8cc7\u6599\u5eab\u8a2a\u554f\u63a5\u53e3\uff0c\u5141\u8a31\u61c9\u7528\u7a0b\u5e8f\u901a\u904e\u7d71\u4e00\u7684\u65b9\u5f0f\u8a2a\u554f\u4e0d\u540c\u985e\u578b\u7684\u8cc7\u6599\u5eab\u3002\u5b83\u63d0\u4f9b\u4e86\u4e00\u500b\u4e2d\u4ecb\u5c64\uff0c\u4f7f\u5f97\u958b\u767c\u8005\u53ef\u4ee5\u4f7f\u7528\u76f8\u540c\u7684API\u4f86\u8a2a\u554f\u4e0d\u540c\u7684\u8cc7\u6599\u5eab\u7cfb\u7d71\u3002<\/p>\n<pre><code>import pyodbc\n\n# \u9023\u63a5\u5230\u8cc7\u6599\u5eab\nconn = pyodbc.connect('DRIVER={SQL Server};SERVER=server_name;DATABASE=db_name;UID=user;PWD=password')\ncursor = conn.cursor()\n\n# \u57f7\u884c\u67e5\u8a62\ncursor.execute('SELECT * FROM table_name')\nfor row in cursor.fetchall():\n    print(row)\n\n# \u95dc\u9589\u9023\u63a5\nconn.close()\n<\/code><\/pre>\n<h2 id=\"3-jdbc%ef%bc%88java-database-connectivity%ef%bc%89-jVGeOzbXpb\">3. JDBC\uff08Java Database Connectivity\uff09<\/h2>\n<p>JDBC\u662fJava\u8a9e\u8a00\u4e2d\u7528\u65bc\u9023\u63a5\u548c\u64cd\u4f5c\u8cc7\u6599\u5eab\u7684API\u3002\u5b83\u63d0\u4f9b\u4e86\u4e00\u7d44\u6a19\u6e96\u7684\u63a5\u53e3\uff0c\u5141\u8a31Java\u61c9\u7528\u7a0b\u5e8f\u8207\u5404\u7a2e\u8cc7\u6599\u5eab\u9032\u884c\u4ea4\u4e92\u3002<\/p>\n<pre><code>import java.sql.*;\n\npublic class DatabaseExample {\n    public static void main(String[] args) {\n        try {\n            \/\/ \u52a0\u8f09JDBC\u9a45\u52d5\n            Class.forName(\"com.mysql.cj.jdbc.Driver\");\n            \/\/ \u9023\u63a5\u5230\u8cc7\u6599\u5eab\n            Connection conn = DriverManager.getConnection(\"jdbc:mysql:\/\/localhost:3306\/db_name\", \"user\", \"password\");\n            Statement stmt = conn.createStatement();\n            ResultSet rs = stmt.executeQuery(\"SELECT * FROM table_name\");\n\n            while (rs.next()) {\n                System.out.println(rs.getString(\"column_name\"));\n            }\n\n            \/\/ \u95dc\u9589\u9023\u63a5\n            conn.close();\n        } catch (Exception e) {\n            e.printStackTrace();\n        }\n    }\n}\n<\/code><\/pre>\n<h2 id=\"4-ado-net-jVGeOzbXpb\">4. ADO.NET<\/h2>\n<p>ADO.NET\u662fMicrosoft .NET\u6846\u67b6\u4e2d\u7684\u4e00\u90e8\u5206\uff0c\u63d0\u4f9b\u4e86\u4e00\u7d44\u7528\u65bc\u8207\u8cc7\u6599\u5eab\u9032\u884c\u4ea4\u4e92\u7684\u985e\u3002\u5b83\u652f\u6301\u591a\u7a2e\u8cc7\u6599\u5eab\uff0c\u5305\u62ecSQL Server\u548cOracle\u3002<\/p>\n<pre><code>using System;\nusing System.Data.SqlClient;\n\nclass Program {\n    static void Main() {\n        string connectionString = \"Server=server_name;Database=db_name;User Id=user;Password=password;\";\n        using (SqlConnection conn = new SqlConnection(connectionString)) {\n            conn.Open();\n            SqlCommand cmd = new SqlCommand(\"SELECT * FROM table_name\", conn);\n            SqlDataReader reader = cmd.ExecuteReader();\n\n            while (reader.Read()) {\n                Console.WriteLine(reader[\"column_name\"]);\n            }\n        }\n    }\n}\n<\/code><\/pre>\n<h2 id=\"5-sqlalchemy-jVGeOzbXpb\">5. SQLAlchemy<\/h2>\n<p>SQLAlchemy\u662f\u4e00\u500bPython\u7684ORM\uff08\u7269\u4ef6\u95dc\u806f\u6620\u5c04\uff09\u5eab\uff0c\u63d0\u4f9b\u4e86\u4e00\u500b\u9ad8\u5c64\u6b21\u7684API\u4f86\u8207\u8cc7\u6599\u5eab\u9032\u884c\u4ea4\u4e92\u3002\u5b83\u652f\u6301\u591a\u7a2e\u8cc7\u6599\u5eab\uff0c\u4e26\u4e14\u53ef\u4ee5\u7c21\u5316\u8cc7\u6599\u5eab\u64cd\u4f5c\u7684\u904e\u7a0b\u3002<\/p>\n<pre><code>from sqlalchemy import create_engine\nfrom sqlalchemy.orm import sessionmaker\n\n# \u9023\u63a5\u5230\u8cc7\u6599\u5eab\nengine = create_engine('mysql+pymysql:\/\/user:password@localhost\/db_name')\nSession = sessionmaker(bind=engine)\nsession = Session()\n\n# \u67e5\u8a62\u8cc7\u6599\nresult = session.execute('SELECT * FROM table_name')\nfor row in result:\n    print(row)\n\n# \u95dc\u9589\u6703\u8a71\nsession.close()\n<\/code><\/pre>\n<h2 id=\"6-entity-framework-jVGeOzbXpb\">6. Entity Framework<\/h2>\n<p>Entity Framework\u662fMicrosoft\u7684\u4e00\u500bORM\u6846\u67b6\uff0c\u5141\u8a31\u958b\u767c\u8005\u4f7f\u7528.NET\u8a9e\u8a00\u4f86\u64cd\u4f5c\u8cc7\u6599\u5eab\u3002\u5b83\u63d0\u4f9b\u4e86\u4e00\u500b\u9ad8\u5c64\u6b21\u7684API\uff0c\u7c21\u5316\u4e86\u8cc7\u6599\u5eab\u64cd\u4f5c\u7684\u904e\u7a0b\u3002<\/p>\n<pre><code>using (var context = new MyDbContext()) {\n    var data = context.TableName.ToList();\n    foreach (var item in data) {\n        Console.WriteLine(item.ColumnName);\n    }\n}\n<\/code><\/pre>\n<h2 id=\"%e7%b8%bd%e7%b5%90-jVGeOzbXpb\">\u7e3d\u7d50<\/h2>\n<p>\u8cc7\u6599\u5eab\u8a2a\u554f\u63a5\u53e3\u662f\u958b\u767c\u8005\u8207\u8cc7\u6599\u5eab\u9032\u884c\u4ea4\u4e92\u7684\u91cd\u8981\u5de5\u5177\u3002\u7121\u8ad6\u662f\u4f7f\u7528ODBC\u3001JDBC\u3001ADO.NET\u3001SQLAlchemy\u9084\u662fEntity Framework\uff0c\u9078\u64c7\u5408\u9069\u7684\u63a5\u53e3\u53ef\u4ee5\u63d0\u9ad8\u958b\u767c\u6548\u7387\u548c\u61c9\u7528\u6027\u80fd\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6548\u7ba1\u7406\u6578\u64da\u7684\u4f01\u696d\u4f86\u8aaa\uff0c\u9078\u64c7\u5408\u9069\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u89e3\u6c7a\u65b9\u6848\u4e5f\u662f\u81f3\u95dc\u91cd\u8981\u7684\u3002\u4e86\u89e3\u9019\u4e9b\u8cc7\u6599\u5eab\u8a2a\u554f\u63a5\u53e3\u7684\u7279\u6027\u548c\u4f7f\u7528\u65b9\u6cd5\uff0c\u5c07\u6709\u52a9\u65bc\u958b\u767c\u8005\u5728\u5be6\u969b\u9805\u76ee\u4e2d\u66f4\u597d\u5730\u61c9\u7528\u8cc7\u6599\u5eab\u6280\u8853\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3\u5e38\u7528\u8cc7\u6599\u5eab\u8a2a\u554f\u63a5\u53e3\u7684\u57fa\u672c\u6982\u5ff5\u8207\u61c9\u7528\uff0c\u63d0\u5347\u8cc7\u6599\u5eab\u64cd\u4f5c\u6548\u7387\uff0c\u9069\u5408\u521d\u5b78\u8005\u8207\u958b\u767c\u8005\u53c3\u8003\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-160821","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/160821","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=160821"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/160821\/revisions"}],"predecessor-version":[{"id":160822,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/160821\/revisions\/160822"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=160821"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=160821"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=160821"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}