关闭当前表单并打开新表单，然后将参数从已关闭的表单传递给新表单 [英] Close Current Form and open new one and passing a parameter from the closed form to the new one

问题描述

大家好，

请任何人告诉我如何关闭当前表单并打开新表单.我在开始时有一个登录表单，当登录成功时，我想打开一个新表单，并传递用户用来登录新表单的ID，那么我该如何在Java中进行此操作?

在此先谢谢您！!

Hi all ,

Please can anyone tell me how to close current form and open new one.? I have a login form at the beginning and when it is successful i want to open a new form passing the id that the user used to login to the new form so how can i do this in java ?

Thanks in advance.!

推荐答案

嗨.

这在帖子中不容易解释，但我会试一试.

您没有指定是否使用Swing，AWT，SWT或其他任何工具.我将尝试以一般的方式进行解释，我只做了一些SWT.

您应该有一个模型，该模型封装了您希望在表单之间传递的数据.例如，一个"User"类.此类将包含用户名，登录是否成功以及要保留在其中的任何数据.

您的登录表单(例如类LoginWindow)应具有User实例的吸气剂.现在，要将User实例传递给第二种形式，您可以通过其构造函数，setter来实现，或者也可以使User类成为单例(http://en.wikipedia.org/wiki/Singleton_pattern [ ^ ]).

实现您所追求的目标的方法有很多，我正在展示至少一种方法.

希望对您有帮助.

Hi.

This is not something easy to explain in a post, but I''ll give it a shot.

You don''t specify whether you''re using Swing, AWT, SWT, or whatever. I''ll try to explain it in some general way, I have only done some SWT.

You should have a model, which encapsulates the data that you want to pass around between the forms. For example, a "User" class. This class would contain the username, whether login was successful, and any data that you want to keep in it.

Your log-in form, say class LoginWindow, should have a getter for the User instance. Now, to pass the User instance to the second form, you could do it through it''s constructor, a setter, or maybe you could make the User class a singleton (http://en.wikipedia.org/wiki/Singleton_pattern[^]).

There are many ways to achieve what you''re after, I''m showing at least one.

Hope this helps you.

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