Posted on 2007-12-07 21:23
yukui 閱讀(384)
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技術
Step1:可在http://www.mysql.com/products/connector-j/index.html下載MySQL JDBC驅動程序mysql-connector-java-*.jar,并加入到ClassPath下面.
Step2:注冊JDBC驅動程序
try {
Class.forName("com.mysql.jdbc.Driver");
}
catch(ClassNotFoundException e) {
System.out.println("找不到驅動程序");
}
Step3:提供JDBC URL
jdbc:mysql://主機名:端口號/數據庫名?user=***&password=***&useUnicode=true&characterEncoding=UTF8
端口號:MySQL的默認值是3306
useUnicode,characterEncoding:如果要存取中文,則必須使用,表明是否使用Unicode,并指定編碼方式.
Step4:從DriverManager取得Connection
可以直接將JDBC URL傳入DriverManager.getConnection()得到Connection對象,如:
try {
String url = "jdbc:mysql://localhost:3306/GUESTBOOK?user=caterpillar&password=123456";
Connection conn = DriverManager.getConnection(url);
if(!conn.isClosed())
System.out.println("數據庫連接成功!");
conn.close();
}
catch(SQLException e) {
....
}
也可以將userName和password傳入DriverManager.getConnection()得到Connection對象,如:
String url = "jdbc:mysql://localhost:3306/AddressBook";
String user = "ZhuJun";
String password = "123456";
Connection conn = DriverManager.getConnection(url, user, password);
一個完整的例子:
import java.sql.*;
public class DBTest {
public static void main(String[] args) {
String driver = "com.mysql.jdbc.Driver";
String url = "jdbc:mysql://localhost:3306/AddressBook";
String user = "ZhuJun";
String password = "123456";
try {
Class.forName(driver);
Connection conn = DriverManager.getConnection(url, user, password);
if(!conn.isClosed())
System.out.println("數據庫連接成功！");
conn.close();
}
catch(ClassNotFoundException e) {
System.out.println("找不到驅動程序");
e.printStackTrace();
}
catch(SQLException e) {
e.printStackTrace();
}
}
}