Question

使用JDBC连接到在线数据库时遇到问题。

这是我迄今为止所做的一切清单：

我创建了一个数据库，
我创建了一个数据库用户
我已将此用户添加到具有所有权限的数据库
之后，我使用Import选项和.sql文件填充我的数据库：

http://www41.zippyshare.com/v/70987939/file.html

当我想连接到我的数据库时，我收到一个错误：

用户'user_name'@'xx.xx.xx.xxx'拒绝访问（使用密码：是） 。其中xx.xx.xx.xxx是IP地址

以下是连接方法的代码：

public String connectWithDataBase(int type) throws SQLException {

    String user = DB.login.getLoginData(type).getLogin();
    String password = DB.login.getLoginData(type).getPassword();


    String result = null;
    connectionStatus = false;

    if (connection == null || connection.isClosed()) {
        try {

            Class.forName(DB.baseConfig.DATA_BASE_DRIVER_NAME).newInstance();

            connection = DriverManager.getConnection(
                    DB.baseConfig.DATA_BASE_ONLINE_URL, user, password);

            operation = connection.createStatement();

            result = "Connecting succesfull!";
            connectionStatus = true;

        } 
        catch (ClassNotFoundException e) 
        {
            result = "Driver error.";
        } 
        catch (SQLException e) 
        {
            result = "Can't connect to database.";
            System.out.println(e.getMessage());
            e.printStackTrace();
        } 
        catch (InstantiationException | IllegalAccessException ex) 
        {
            result = "Conection error.";
        }
    }

    return result;
}

具有配置：

的课程

// Name
public final String DATA_BASE_ONLINE = "xxx_zzz";

// Config data
public final String ONLINE_DATA_BASE_PORT = "xxx.yyy.pl:3306";
public final String ONLINE_DATA_BASE_TYPE = "mysql";
public final String ONLINE_DATA_BASE_DRIVER_NAME = "com.mysql.jdbc.Driver";
public final String ONLINE_DATA_BASE_ENCODING = "?useUnicode=true&characterEncoding=utf8"; // B. WAŻNE!!!

// Online base URL:
public final String DATA_BASE_ONLINE_URL = "jdbc:" + ONLINE_DATA_BASE_TYPE + "://" 
    + ONLINE_DATA_BASE_PORT + "/" + DATA_BASE_ONLINE + ONLINE_DATA_BASE_ENCODING;

使用登录数据：

进行课程

// Base users types    
public final int ONLINE = 0;

// User type --> loging data
private final HashMap<Integer, FlowLoginData> loginData = new HashMap<>();

// Nazwa tabeli
private final String TABLE_USERS = "users";

// Pola w tabeli
private final String TABLE_USERS_ID = "id";
private final String TABLE_USERS_PESEL = "pesel_number";
private final String TABLE_USERS_PRIV = "priv_level";
private final String TABLE_USERS_ONLINE = "is_online";

// Zmienna pomocznicza
private final String DASH = "'";

public DBLogin() {

    loginData.put(this.ONLINE, new FlowLoginData("user", <-- "user" was added to base
            "xxxxxxxxx"));
}

有人能告诉我哪里出错了吗？

Java - JDBC - 用户拒绝访问

0 个答案: