JDBC使用步驟

JDBC編程步驟

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• 加載驅動程序：Class.forName(driverClass)

　　加載Mysql驅動：Class.forName("com.mysql.jdbc.Driver")

　　加載Oracle驅動：Class.forName("oracle.jdbc.driver.OracleDriver")

• 獲取數據庫鏈接：

　　DriverManager.getConnection("jdbc:mysql://127.0.0.1:3306/DatabaseName","userName","password")

• 建立Statement對象：

　　conn.createStatement();

以下面的代碼鏈接數據庫：

 1 package com.gui;
 2 
 3 import java.sql.Connection;
 4 import java.sql.DriverManager;
 5 import java.sql.ResultSet;
 6 import java.sql.Statement;
 7 
 8 public class DBUtil {
 9 
10     private static final String URL = "jdbc:mysql://127.0.0.1:3306/imooc";
11     private static final String USER = "root";
12     private static final String PASSERWORD = "123";
13 
14     public static void main(String[] args) throws Exception {
15 
16         // 1.加載驅動程序
17         Class.forName("com.mysql.jdbc.Driver");
18 
19         // 2.獲取數據庫的鏈接
20         Connection conn = DriverManager.getConnection(URL, USER, PASSERWORD);
21 
22         // 3.經過數據庫的鏈接操做數據庫，實現增刪改
23         Statement stmt = conn.createStatement();
24         ResultSet rs = stmt
25                 .executeQuery("select user_name,age from imooc_goddess");
26 
27         while (rs.next()) {
28             System.out.println(rs.getString("user_name") + ","
29                     + rs.getString("age"));
30 
31         }
32 
33     }
34 }