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根据MVC设计在哪里放置验证方法GWT

[英]Where to put validation methods GWT according to MVC design

原文 2013-02-18 16:35:34 5 2 java/ google-app-engine/ model-view-controller/ gwt

I'm new with GWT and I'm stuck to an issue where to put the validation methods some of them requires asynchronous calls to database my project consists of 2 packages : 我是GWT新手，但我遇到了一个问题：在其中放置验证方法，其中一些方法需要异步调用数据库，我的项目包含2个软件包：

client side where the interface and services classes client side所在的接口和服务类

server side where entities and serviceImpl classes server side 实体和serviceImpl类

Do I have to make a third package and place them on it ex: shared ?? 我是否必须制作第三个包装并将其放在ex上：shared ？ or It's Ok to just place them on the client interface classes ex:Login.java 或者可以将它们放在客户端接口类ex：Login.java上

2 个解决方案

GWT 2.5 comes with support for JSR-303 Bean Validation. GWT 2.5附带了对JSR-303 Bean验证的支持。

See link: https://developers.google.com/web-toolkit/doc/latest/DevGuideValidation?hl=fr 看到链接： https : //developers.google.com/web-toolkit/doc/latest/DevGuideValidation?hl=fr

It would be great to completely share the validation code in server and client, but run it in both ends. 完全共享服务器和客户端中的验证代码，但同时在两端运行它，将是很棒的。
As all said ,good things in client side validation : 众所周知，在client side validation好处：
Immediate feedback without server visit . Immediate feedback无需访问服务器。
If client side validation is used, server side validation is still needed 如果使用client side validation ，则仍然需要server side validation