Spring + App Engine + JSR303

本文介绍了Spring + App Engine + JSR303的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述

我是Spring新手，并且遇到JSR303验证问题。这个问题似乎与spring-servlet.xml中的< mvc：annotation-driven /> 标签有关。

SEVERE：上下文初始化失败 org.springframework.beans.factory.BeanCreationException：使用名称'org.springframework.validation.beanvalidation.LocalValidatorFactoryBean＃0'创建bean时出错：init方法的调用失败;嵌套异常是javax.validation.ValidationException：无法找到默认提供程序

我不知道如何解释此消息。我正在使用 validation-api-1.0.0.GA.jar ，它位于WEB-INF / lib目录和我的eclipse构建路径中。

有什么想法？

解决方案

看起来您没有任何JSR-303提供者在你的类路径中。 validation-api-1.0.0.GA.jar只定义了JSR-303协议，您将需要hibernate验证器或apache bean验证来执行验证。

您可以在这里查看关于2个JSR-303提供者的问题：是否有JSR-303（bean验证）的实现？

I am new to Spring and having issues with JSR303 Validation. The problem appears to be with the <mvc:annotation-driven/> tag in spring-servlet.xml.

When I include this tag I get the following error on startup of the development server.

SEVERE: Context initialization failed org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'org.springframework.validation.beanvalidation.LocalValidatorFactoryBean#0': Invocation of init method failed; nested exception is javax.validation.ValidationException: Unable to find a default provider

I have no idea how to interpret this message. I am using validation-api-1.0.0.GA.jar which is in the WEB-INF/lib directory and on my eclipse build path.

Any ideas?

解决方案

It looks like you don't have any JSR-303 provider in your classpath. validation-api-1.0.0.GA.jar defines only the JSR-303 contract, and you will need either hibernate validator or apache bean validation to be present to perform the validations.

You can check a question regarding the 2 JSR-303 providers here: Is there an implementation of JSR-303 (bean validation) available?