为什么从Java连接到MySQL数据库会被拒绝访问？

Question

我试图从Java连接到MySQL，但我得到以下错误。

谢谢你的帮助，我对此很陌生。我肯定密码和用户名是正确的，所以我不确定从这里去哪里。下面是我连接数据库的代码：

package com.javawebtutor.jsf;

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

import javax.faces.bean.ManagedBean;
import javax.faces.bean.SessionScoped;


@ManagedBean(name="loginBean")
@SessionScoped
public class LoginBean {
private String userName;
private String password;
private String dbuserName;

private String dbpassword;
Connection connection;
Statement statement;
ResultSet resultSet;
String SQL;


public String getUserName() {
    return userName;
}

public void setUserName(String userName) {
    this.userName = userName;
}

public String getPassword() {
    return password;
}

public void setPassword(String password) {
    this.password = password;
}

public String getDbuserName() {
    return dbuserName;
}

public void setDbuserName(String dbuserName) {
    this.dbuserName = dbuserName;
}

public String getDbpassword() {
    return dbpassword;
}

public void setDbpassword(String dbpassword) {
    this.dbpassword = dbpassword;
}

public void dbData(String userName)
{
    Connection con = null;
    String conUrl = "jdbc:mysql://localhost:3306/test; user=root; password=pass;";
    try
    {
        Class.forName("com.mysql.jdbc.Driver");
        con = DriverManager.getConnection(conUrl);
        //connection = DriverManager.getConnection("jdbc:mysql://localhost:3306/test",user = "root","pass");
        statement = connection.createStatement();
        SQL = "Select * from USER_DETAIL where username like ('" + userName +"')";
        resultSet = statement.executeQuery(SQL);
        resultSet.next();
        dbuserName = resultSet.getString(1).toString();
        dbpassword = resultSet.getString(2).toString();
    }
    catch(Exception ex)
    {
        ex.printStackTrace();
        System.out.println("Exception Occured in the process :" + ex);
    }
}

public String checkValidUser()
{
    dbData(userName);

    if(userName.equalsIgnoreCase(dbuserName))
    {

        if(password.equals(dbpassword))
            return "success";
        else
        {
            return "failure";
        }
    }
    else
    {
        return "failure";
    }
}
}