JDBC1

 1 package com.lovo;
 2 
 3 import java.sql.Connection;
 4 import java.sql.DriverManager;
 5 import java.sql.ResultSet;
 6 import java.sql.SQLException;
 7 import java.sql.Statement;
 8 
 9 public class Test01 {
10 
11     public static void main(String[] args) {
12         Connection con = null;
13         // 1. 加载驱动程序(反射)
14         try {
15             Class.forName("com.mysql.jdbc.Driver");
16             // 2. 创建连接
17             con = DriverManager.getConnection("jdbc:mysql://localhost/company",
18                     "root", "123456");
19             // 3. 创建语句
20             Statement sta = con.createStatement();
21             // 4. 发出SQL语句得到结果集(游标)
22             ResultSet rs = sta.executeQuery("select * from emp");
23             // 5. 循环遍历结果集
24             while (rs.next()) { // 先判断游标是否可以取到下一条记录
25                 System.out.println(" 姓名:" + rs.getString("ename") + "  职位:"
26                         + rs.getString("job") + "  工资:" + rs.getInt("sal"));
27                 System.out.println("=====================");
28             }
29         } catch (ClassNotFoundException e) {
30             e.printStackTrace();
31         } catch (SQLException e) {
32             e.printStackTrace();
33         } finally {
34             if (con != null) {
35                 try {
36                     con.close(); // 6. 关闭连接
37                 } catch (SQLException e) {
38                     e.printStackTrace();
39                 }
40             }
41         }
42     }
43 }