dbconnection.java

精通Java核心技术源代码

// ==================== Program Discription ==========================
// 程序名称：示例13-1 : DBConnection.java
// 程序目的：建立数据库连接
// ==============================================================
import java.sql.*;

public class DBConnection 
{
    // 指定驱动程序
    private static String driver = "com.microsoft.jdbc.sqlserver.SQLServerDriver";
    // 创建指定数据库的URL
    private static String url = "jdbc:microsoft:sqlserver://localhost:1433;DatabaseName=test";
    // 提供用户名和密码
    private static String user="sa";
    private static String password="sasa";

    public static Connection getConnection() {
        Connection con;
        try {
 	//加载驱动程序
           Class.forName(driver);
           //创建连接
           con = DriverManager.getConnection(url, user, password);
           return con;
        } catch (ClassNotFoundException e) {
            System.out.println(e.getMessage());
        } catch (SQLException e) {
            System.out.println(e.getMessage());
        }
        return null;
    }
}