Spring mvc @RequestParam如何处理框架不正确的URL

我正在进行如下的方法测试，并进行RESTfulWebService调用以获取数据

@RequestMapping(value ="/select", method = RequestMethod.GET)
@ResponseBody
public String test(
@RequestParam(value="begin", defaultValue="0",required=false) final String begin
)
{
//Some java code
}

**RESTful Webservice Call:**
http://localhost:8081/a/b/c/select?begin=1
Returning the data properly

http://localhost:8081/a/b/c/select?begin:1
Here in the url = has been replaced with : for negative testing.
Here Spring ignores the given value 1 and picks the default value 0 and returns the data accordingly without errors

Question:
But I want to capture the actual URL field with value which is begin:1, do some validation and display error message that the url is incorrect.

I understood that begin:1 is not considered as part of url by spring and hence picks the default value. Wondering is there a way in Spring to capture the wrongly framed url's.
Any pointers would be helpful. Many Thanks!

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那么，您是否有一个不提供客户端库的restful服务？您需要考虑的一些事情是API开发，其中之一是HATOOS或超媒体。您的客户端是否应该创建自己的URL？顺便说一句，您可以为请求参数设置一个“默认值”。您可以查看它是否使用默认值，如果是默认值，则返回错误消息。感谢您的回复。客户将使用我们提供的URL？将是基本url，还有许多其他参数类似于begin=1“开始”被指定为默认值0和“必需=false”。我无法检查默认值并返回错误消息，因为在某些情况下场景是有效的。用户甚至可以拍摄url，这里的begin默认为0。是的，您需要深入了解HATEOS并逐步构建url。如果这种情况是有效的，但仅在某些上下文中，您需要将它们指向这些上下文。