java – JDBC希腊字符

将记录插入包含希腊字符的数据库时,我遇到了问题.即使数据库默认字符集是utf8,我也在连接URL中添加了参数我得到了?????字符而不是实际的希腊字符.

public class Queries 
{
    private static final String URL = "jdbc:MysqL://localhost/Ezazel";
    private static final String USERNAME = "root";
    private static final String PASSWORD = "root";

    private Connection connection = null;
    private PreparedStatement insertSight = null;
    private PreparedStatement insertHotel = null;
public Queries()
    {
        try 
        {
            connection = DriverManager.getConnection( URL,USERNAME, PASSWORD );         
            insertSight = connection.prepareStatement( "INSERT INTO Sights ( Title, Description, Address, Latitude, Longitude ) VALUES ( ?, ?, ?, ?, ? )" );
            insertHotel = connection.prepareStatement( "INSERT INTO Hotels ( Title, Description, Address, Latitude, Longitude ) VALUES ( ?, ?, ?, ?, ? )" );
        } 
        catch ( sqlException e ) 
        {
            // Todo Auto-generated catch block
            e.printstacktrace();
            System.exit( 1 );
        }
    }

    public void addSight( String title, String description, String address, double latitude, double longitude )
    {
        try 
        {
            insertSight.setString( 1, title );
            insertSight.setString( 2, description );
            insertSight.setString( 3, address );
            insertSight.setDouble( 4, latitude );
            insertSight.setDouble( 5, longitude );

            insertSight.executeUpdate();        
        } 
        catch ( sqlException e )
        {
            e.printstacktrace();
        }
        finally
        {
            try 
            {
                insertSight.close();
                connection.close();
            } 
            catch ( sqlException e )
            {
                // Todo Auto-generated catch block
                e.printstacktrace();
                System.exit( 1 );
            }   
        }
    }
}

解决方法:

尝试在连接字符串中指定utf-8,

private static final String URL = "jdbc:MysqL://localhost/Ezazel?characterEncoding=utf8";

另外,你在哪里看到?????人物？如果您愿意,Viewer需要支持UTF-8.

如果数据已成功保存为希腊文但只有PHPMyAdmin的可见性问题,请尝试验证collat​​ion和charset是否设置为UTF-8

How to display UTF-8 characters in phpMyAdmin?