SpringMVC Ajax验证 [英] SpringMVC Ajax validation

问题描述

我有一个Spring Mvc 3形式POST到控制器，在控制器中我调用执行DML语句。我还有一个单独的验证类，实现Validator，并在我的控制器中调用。我做简单和复杂的验证在那里像检查如果用户名存在，并返回一个错误消息，如果存在。

I have a Spring Mvc 3 form that POST to a controller, in the controller i make calls to execute DML statements. I also have a separate validation class that implements Validator and is called in my Controller. I do both simple and complex validation in there like check if user name exist and return an error message if it exist.

我想使用ajax只验证用户名字段，当我在视图上的字段，但我想打电话到已经实现验证我有并且只验证用户名字段。

I would like to use ajax to validate only the user name field when i tab out of the field on the view, but i would like to make a call to the already implemented validation i have and only validate the username field.

我如何实现这一点，我需要在Ajax中调用Controller类，并有一个单独的@RequestMapping来处理这个？我可以有一个例子，如何这应该实现。

How can i achieve this, will i need to make a call in Ajax to the Controller class and have a separate @RequestMapping to handle this only? Can i have an example om how this should be implemented.

推荐答案

我在SpringFramework网站上阅读了一篇关于这个问题的非常好的教程文章。

I have read a very nice tutorial article on this issue on SpringFramework site.

请参阅此链接 a>。此外，还链接。

Please refer this link. And this link also.

希望这有助于你。干杯。

Hope this helps you. Cheers.

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