连接mysql数据库

public class MyDB{
    private Connection conn=null;
    private String jdbcUrl="jdbc:mysql://localhost:3360/manger";
    private String user="root";
    private String password="123456";
    public  Connection getConn(){
        try{
            Class.forName("com.mysql.jdbc.Driver");
            conn=DriverManager.getConnection(jdbcUrl, user,password);
        }
        catch(Exception e){
            e.printStackTrace();
        }
        return conn;
    }
    public void closeConn(){
        try{
            conn.close();
        }
        catch(Exception e){
            e.printStackTrace();
        }
    }
}

这是连接数据库的代码，
这是测试的：

import java.sql.*;

public class TestDB
{
    public static void main(String[] args) throws SQLException
    {
    MyDB my=new MyDB();
    if(!my.getConn().isClosed()){
    System.out.println("ok!");
    }else
    System.out.println("error");
    }

}

哪里不对啊，怎么链接不上数据库 MySQL
[解决办法]
private String jdbcUrl="jdbc:mysql://localhost:3360/manger";
MySql的默认端口是3306，而不是3360.
别告诉我你自己改成了3360。
[解决办法]

public static Connection connectDatabase(){
Connection conn = null;
try {
Class.forName("com.mysql.jdbc.Driver");
conn = DriverManager.getConnection("jdbc:mysql://localhost:3306/test","root","");
} catch (ClassNotFoundException e) {
e.printStackTrace();
System.out.println("数据库连接失败");
} catch (SQLException e) {
e.printStackTrace();
System.out.println("数据库连接失败");
}finally{
return conn;
}
}

[解决办法]
public class MyDB{
private Connection conn=null;
private String jdbcUrl="jdbc:mysql://localhost:3306/manger";
private String user="root";

private String password="123456";
public Connection getConn(){
try{
Class.forName("com.mysql.jdbc.Driver");
conn=DriverManager.getConnection(jdbcUrl, user,password);
}catch(Exception e){
e.printStackTrace();
return null;
}
return conn;
}
public void closeConn(){
try{
if (conn != null) {
conn.close();
}
}catch(Exception e){
e.printStackTrace();
}
}
}


public class TestDB {

public static void main(String[] args) {
// TODO Auto-generated method stub
MyDB my = new MyDB();
Connection conn = my.getConn();
if (conn != null) {
System.out.println("ok!");
}else {
System.out.println("error!");
}
}
}