MySQL数据库连接测试程序

MySQL数据库连接测试程序：

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;
import java.sql.Statement;

public class MySQLConnTest {
    public static final String DBDRIVER = "org.gjt.mm.mysql.Driver";
    public static final String DBURL = "jdbc:mysql://localhost:3306/dbname";
    public static final String DBUSER = "root";
    public static final String DBPASS = "admin";

    public static void main(String[] args) {

        Connection conn = null;
        Statement stmt = null;
        try {
            Class.forName(DBDRIVER);
            System.out.println("数据库驱动正确");

            try {
                conn = DriverManager.getConnection(DBURL, DBUSER, DBPASS);
                System.out.println("数据库用户名密码正确");
                stmt = conn.createStatement();
                System.out.println("数据库连接正常");
            } catch (Exception e) {
                System.out.println("数据库用户名密码不正确");
            }
        } catch (Exception e) {
            System.out.println("数据库驱动不正确");
        }finally{
            try {
                stmt.close();
            } catch (SQLException e) {
                e.printStackTrace();
            }

            try {
                conn.close();
            } catch (SQLException e) {
                e.printStackTrace();
            }
        }
    }

}