{"id":61893,"date":"2024-10-13T14:31:47","date_gmt":"2024-10-13T06:31:47","guid":{"rendered":"https:\/\/server.hk\/cnblog\/61893\/"},"modified":"2024-10-13T14:31:48","modified_gmt":"2024-10-13T06:31:48","slug":"java%e7%a8%8b%e5%ba%8f%e5%93%a1%e5%bf%85%e5%82%99%e6%8a%80%e8%83%bd%ef%bc%9a%e5%b8%b8%e7%94%a8%e6%95%b8%e6%93%9a%e5%ba%ab%e4%b8%80%e8%a6%bd%ef%bc%81-java%e5%b8%b8%e7%94%a8%e7%9a%84%e6%95%b8%e6%93%9a","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/61893\/","title":{"rendered":"Java\u7a0b\u5e8f\u54e1\u5fc5\u5099\u6280\u80fd\uff1a\u5e38\u7528\u6578\u64da\u5eab\u4e00\u89bd\uff01 (java\u5e38\u7528\u7684\u6578\u64da\u5eab)"},"content":{"rendered":"

Java\u7a0b\u5e8f\u54e1\u5fc5\u5099\u6280\u80fd\uff1a\u5e38\u7528\u6578\u64da\u5eab\u4e00\u89bd\uff01<\/h1>\n

\u5728\u7576\u4eca\u7684\u8edf\u4ef6\u958b\u767c\u74b0\u5883\u4e2d\uff0cJava\u7a0b\u5e8f\u54e1\u9700\u8981\u638c\u63e1\u591a\u7a2e\u6280\u80fd\uff0c\u5176\u4e2d\u6578\u64da\u5eab\u7684\u4f7f\u7528\u662f\u4e0d\u53ef\u6216\u7f3a\u7684\u4e00\u90e8\u5206\u3002\u6578\u64da\u5eab\u4e0d\u50c5\u7528\u65bc\u5b58\u5132\u548c\u7ba1\u7406\u6578\u64da\uff0c\u9084\u80fd\u63d0\u9ad8\u61c9\u7528\u7a0b\u5e8f\u7684\u6027\u80fd\u548c\u53ef\u64f4\u5c55\u6027\u3002\u672c\u6587\u5c07\u4ecb\u7d39\u5e7e\u7a2eJava\u5e38\u7528\u7684\u6578\u64da\u5eab\uff0c\u5e6b\u52a9\u7a0b\u5e8f\u54e1\u66f4\u597d\u5730\u9078\u64c7\u548c\u4f7f\u7528\u5408\u9069\u7684\u6578\u64da\u5eab\u3002<\/p>\n

1. MySQL<\/h2>\n

MySQL\u662f\u4e00\u7a2e\u958b\u6e90\u7684\u95dc\u4fc2\u578b\u6578\u64da\u5eab\u7ba1\u7406\u7cfb\u7d71\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u5404\u7a2eWeb\u61c9\u7528\u7a0b\u5e8f\u4e2d\u3002\u5b83\u4ee5\u5176\u9ad8\u6548\u6027\u548c\u7a69\u5b9a\u6027\u800c\u805e\u540d\uff0c\u4e26\u4e14\u652f\u6301\u591a\u7a2e\u64cd\u4f5c\u7cfb\u7d71\u3002Java\u7a0b\u5e8f\u54e1\u53ef\u4ee5\u4f7f\u7528JDBC\uff08Java Database Connectivity\uff09\u4f86\u9023\u63a5MySQL\u6578\u64da\u5eab\uff0c\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684\u793a\u4f8b\uff1a<\/p>\n

import java.sql.Connection;\nimport java.sql.DriverManager;\nimport java.sql.ResultSet;\nimport java.sql.Statement;\n\npublic class MySQLExample {\n    public static void main(String[] args) {\n        try {\n            Connection conn = DriverManager.getConnection(\"jdbc:mysql:\/\/localhost:3306\/mydb\", \"user\", \"password\");\n            Statement stmt = conn.createStatement();\n            ResultSet rs = stmt.executeQuery(\"SELECT * FROM users\");\n            while (rs.next()) {\n                System.out.println(rs.getString(\"username\"));\n            }\n            conn.close();\n        } catch (Exception e) {\n            e.printStackTrace();\n        }\n    }\n}\n<\/code><\/pre>\n
2. PostgreSQL<\/h2>\n
PostgreSQL\u662f\u4e00\u7a2e\u529f\u80fd\u5f37\u5927\u7684\u958b\u6e90\u95dc\u4fc2\u578b\u6578\u64da\u5eab\uff0c\u7279\u5225\u9069\u5408\u9700\u8981\u8907\u96dc\u67e5\u8a62\u548c\u6578\u64da\u5b8c\u6574\u6027\u7684\u61c9\u7528\u3002\u5b83\u652f\u6301\u591a\u7a2e\u6578\u64da\u985e\u578b\u548c\u64f4\u5c55\uff0c\u4e26\u4e14\u5728\u6027\u80fd\u548c\u5b89\u5168\u6027\u65b9\u9762\u8868\u73fe\u512a\u7570\u3002Java\u7a0b\u5e8f\u54e1\u540c\u6a23\u53ef\u4ee5\u4f7f\u7528JDBC\u4f86\u9023\u63a5PostgreSQL\uff0c\u4ee5\u4e0b\u662f\u9023\u63a5\u7684\u793a\u4f8b\uff1a<\/p>\n
import java.sql.Connection;\nimport java.sql.DriverManager;\nimport java.sql.ResultSet;\nimport java.sql.Statement;\n\npublic class PostgreSQLExample {\n    public static void main(String[] args) {\n        try {\n            Connection conn = DriverManager.getConnection(\"jdbc:postgresql:\/\/localhost:5432\/mydb\", \"user\", \"password\");\n            Statement stmt = conn.createStatement();\n            ResultSet rs = stmt.executeQuery(\"SELECT * FROM employees\");\n            while (rs.next()) {\n                System.out.println(rs.getString(\"name\"));\n            }\n            conn.close();\n        } catch (Exception e) {\n            e.printStackTrace();\n        }\n    }\n}\n<\/code><\/pre>\n
3. MongoDB<\/h2>\n
MongoDB\u662f\u4e00\u7a2eNoSQL\u6578\u64da\u5eab\uff0c\u5c08\u70ba\u8655\u7406\u5927\u91cf\u975e\u7d50\u69cb\u5316\u6578\u64da\u800c\u8a2d\u8a08\u3002\u5b83\u4f7f\u7528\u6587\u6a94\u5c0e\u5411\u7684\u6578\u64da\u6a21\u578b\uff0c\u4e26\u4e14\u652f\u6301\u9748\u6d3b\u7684\u6578\u64da\u7d50\u69cb\u3002Java\u7a0b\u5e8f\u54e1\u53ef\u4ee5\u4f7f\u7528MongoDB\u7684Java\u9a45\u52d5\u4f86\u9032\u884c\u6578\u64da\u64cd\u4f5c\uff0c\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684\u793a\u4f8b\uff1a<\/p>\n
import com.mongodb.MongoClient;\nimport com.mongodb.client.MongoCollection;\nimport com.mongodb.client.MongoDatabase;\nimport org.bson.Document;\n\npublic class MongoDBExample {\n    public static void main(String[] args) {\n        MongoClient mongoClient = new MongoClient(\"localhost\", 27017);\n        MongoDatabase database = mongoClient.getDatabase(\"mydb\");\n        MongoCollection collection = database.getCollection(\"users\");\n        \n        Document doc = new Document(\"username\", \"john_doe\")\n                .append(\"age\", 30);\n        collection.insertOne(doc);\n        \n        mongoClient.close();\n    }\n}\n<\/code><\/pre>\n
4. Oracle Database<\/h2>\n
Oracle Database\u662f\u4e00\u7a2e\u5546\u696d\u95dc\u4fc2\u578b\u6578\u64da\u5eab\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u4f01\u696d\u7d1a\u61c9\u7528\u4e2d\u3002\u5b83\u63d0\u4f9b\u4e86\u5f37\u5927\u7684\u6578\u64da\u7ba1\u7406\u529f\u80fd\u548c\u9ad8\u53ef\u7528\u6027\uff0c\u9069\u5408\u8655\u7406\u5927\u91cf\u6578\u64da\u548c\u9ad8\u4e26\u767c\u7684\u5834\u666f\u3002Java\u7a0b\u5e8f\u54e1\u53ef\u4ee5\u4f7f\u7528JDBC\u4f86\u9023\u63a5Oracle\u6578\u64da\u5eab\uff0c\u4ee5\u4e0b\u662f\u9023\u63a5\u7684\u793a\u4f8b\uff1a<\/p>\n
import java.sql.Connection;\nimport java.sql.DriverManager;\nimport java.sql.ResultSet;\nimport java.sql.Statement;\n\npublic class OracleExample {\n    public static void main(String[] args) {\n        try {\n            Connection conn = DriverManager.getConnection(\"jdbc:oracle:thin:@localhost:1521:orcl\", \"user\", \"password\");\n            Statement stmt = conn.createStatement();\n            ResultSet rs = stmt.executeQuery(\"SELECT * FROM customers\");\n            while (rs.next()) {\n                System.out.println(rs.getString(\"customer_name\"));\n            }\n            conn.close();\n        } catch (Exception e) {\n            e.printStackTrace();\n        }\n    }\n}\n<\/code><\/pre>\n
5. SQLite<\/h2>\n
SQLite\u662f\u4e00\u7a2e\u8f15\u91cf\u7d1a\u7684\u95dc\u4fc2\u578b\u6578\u64da\u5eab\uff0c\u9069\u5408\u7528\u65bc\u5c0f\u578b\u61c9\u7528\u548c\u5d4c\u5165\u5f0f\u7cfb\u7d71\u3002\u5b83\u4e0d\u9700\u8981\u5b89\u88dd\u548c\u914d\u7f6e\uff0c\u4e26\u4e14\u652f\u6301ACID\u4e8b\u52d9\u3002Java\u7a0b\u5e8f\u54e1\u53ef\u4ee5\u4f7f\u7528JDBC\u4f86\u9023\u63a5SQLite\uff0c\u4ee5\u4e0b\u662f\u9023\u63a5\u7684\u793a\u4f8b\uff1a<\/p>\n
import java.sql.Connection;\nimport java.sql.DriverManager;\nimport java.sql.ResultSet;\nimport java.sql.Statement;\n\npublic class SQLiteExample {\n    public static void main(String[] args) {\n        try {\n            Connection conn = DriverManager.getConnection(\"jdbc:sqlite:mydb.db\");\n            Statement stmt = conn.createStatement();\n            ResultSet rs = stmt.executeQuery(\"SELECT * FROM products\");\n            while (rs.next()) {\n                System.out.println(rs.getString(\"product_name\"));\n            }\n            conn.close();\n        } catch (Exception e) {\n            e.printStackTrace();\n        }\n    }\n}\n<\/code><\/pre>\n
\u7e3d\u7d50<\/h2>\n
\u638c\u63e1\u591a\u7a2e\u6578\u64da\u5eab\u7684\u4f7f\u7528\u5c0d\u65bcJava\u7a0b\u5e8f\u54e1\u4f86\u8aaa\u81f3\u95dc\u91cd\u8981\u3002\u7121\u8ad6\u662f\u95dc\u4fc2\u578b\u6578\u64da\u5eab\u5982MySQL\u3001PostgreSQL\u548cOracle\uff0c\u9084\u662fNoSQL\u6578\u64da\u5eab\u5982MongoDB\uff0c\u9078\u64c7\u5408\u9069\u7684\u6578\u64da\u5eab\u53ef\u4ee5\u986f\u8457\u63d0\u9ad8\u61c9\u7528\u7a0b\u5e8f\u7684\u6027\u80fd\u548c\u53ef\u64f4\u5c55\u6027\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6548\u6578\u64da\u5b58\u5132\u548c\u7ba1\u7406\u7684\u958b\u767c\u8005\u4f86\u8aaa\uff0c\u4e86\u89e3\u9019\u4e9b\u6578\u64da\u5eab\u7684\u7279\u6027\u548c\u4f7f\u7528\u65b9\u6cd5\u662f\u5fc5\u4e0d\u53ef\u5c11\u7684\u3002<\/p>\n
\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u9ad8\u6548\u7684 VPS<\/a> \u89e3\u6c7a\u65b9\u6848\u4f86\u90e8\u7f72\u60a8\u7684Java\u61c9\u7528\u7a0b\u5e8f\uff0cServer.HK\u63d0\u4f9b\u591a\u7a2e\u9078\u64c7\uff0c\u6eff\u8db3\u4e0d\u540c\u9700\u6c42\u7684\u5ba2\u6236\u3002\u7121\u8ad6\u662f \u9999\u6e2fVPS<\/a> \u9084\u662f\u5176\u4ed6\u985e\u578b\u7684 \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":"
\u63a2\u7d22Java\u7a0b\u5e8f\u54e1\u5fc5\u5099\u7684\u5e38\u7528\u6578\u64da\u5eab\uff0c\u4e86\u89e3\u5404\u7a2e\u6578\u64da\u5eab\u7684\u7279\u9ede\u8207\u61c9\u7528\uff0c\u63d0\u5347\u958b\u767c\u6280\u80fd\uff0c\u52a9\u529b\u9805\u76ee\u6210\u529f\uff01<\/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-61893","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/61893","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=61893"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/61893\/revisions"}],"predecessor-version":[{"id":61894,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/61893\/revisions\/61894"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=61893"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=61893"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=61893"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}