Java中JTextfield的表单验证？ [英] Form validation for JTextfield in Java?

问题描述

是否有一种简单的方法验证 Java中的一组 JTextFields 。我目前正在使用 sqlite manager ， neatbeans IDE 来创建一个简单的表单来收集信息以将作业添加到数据库中。我意识到JTextFields太多了。如何通过sqllite抛出可以自定义的异常错误，或者通过属性对话框在Neatbeans中验证每个JTextField。验证是存在检查，即已输入值。自定义验证消息？

Is there an easy way to validate a group of JTextFields in Java. I am currently using sqlite manager, neatbeans IDE to create a simple form that collects information to add a job into the database. I realise there is too many JTextFields. How can I validate each JTextFields either through sqllite throwing an exception error which can be customised, or maybe in Neatbeans through properties dialogue box. Validation is to be presence check, i.e. has a value been entered. Custom validation message?

推荐答案

使用 InputVerifier ，如 如何使用焦点子系统：验证输入 。在此处 >其他人。

Use an InputVerifier, as shown in How to Use the Focus Subsystem : Validating Input. There's a related example here, among others.

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