步驟：右擊項目找到build path->configure build path->libraries——>add External JARs添加驅動包
二、寫測試類：TestCon.java
（在此之前，首先
1.在自己的電腦上Mysql下確定賬戶是"root"，密碼是"123456"；
2.進入賬戶，創建數據庫cui；
3.在數據庫cui下面，創建表test1 包含_id(int 類型自動增加) username(String 類型)、password(String 類型)；
4.在表中插入數據，以便顯示
）
1 package com.test.an;
2
3 import java.sql.Connection;
4 import java.sql.DriverManager;
5 import java.sql.PreparedStatement;
6 import java.sql.ResultSet;
7 import java.sql.SQLException;
8
9
10 public class TestCon1{
11 public static void main(String[] args)
12 {
13 Connection con = null;
14 String sql;
15 PreparedStatement pre;
16 ResultSet rs;
17
18 try {
19 String driver="com.mysql.jdbc.Driver";
20 Class.forName(driver);
21
22 String url="jdbc:mysql://localhost:3306/cuiuseUnicode=true&characterEncoding=latin1";//utf-8也行
23 con = DriverManager.getConnection(url, "root", "123456");
24
25 sql = "select _id,username,password from test1" ;
26 pre = con.prepareStatement(sql);
27
28 rs = pre.executeQuery();
29 while(rs.next()){
30 int id = rs.getInt(1);
31 String username = rs.getString(2);
32 String password = rs.getString(3);
33
34 System.out.println("id="+id+";username="+username+";password="+password);
35 }
36 con.close();
37 } catch (SQLException e) {
38 e.printStackTrace();
39 } catch (ClassNotFoundException e) {
40 e.printStackTrace();
41 }
42
43 }
44
45 }
運行結果:
id=1;username=ccc;password=123456
id=2;username=xxx;password=654321
id=3;username=ddd;password=123456
id=4;username=ddf÷;password=yyt
id=5;username=cuixiaodong;password=cxd
id=6;username=vv;password=cxd