This application has no explicit mapping for /error, so you are seeing this as a fallback.

这个问题属于技术问题，我可以回答你：这是 Spring Boot 在处理错误时的默认行为，如果你想自定义错误处理页面，可以在代码中进行配置。但是，如果你想听一个笑话，我可以告诉你：为什么程序员总是开玩笑说“有两种人，一种是懂二进制的，一种是不懂二进制的”？因为如果你懂二进制，你就会知道 10 个人中有 1 个是二进制。

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This application has no explicit mapping for /error, so you are seeing this as a fallback. deletemapping

这个错误提示"This application has no explicit mapping for /error, so you are seeing this as a fallback."表示应用程序没有对"/error"路径进行显式的映射，所以你才看到这个错误。解决这个问题的方法有两种。首先，你需要检查配置文件application是否与你的项目文件在同一级目录下。其次，你需要确保控制该页面的controller和控制页面跳转的controller的@RequestMapping后面的地址是否与该页面一致。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
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this application has no explicit mapping for/error,so you are seeing this as a fallback

"This application has no explicit mapping for /error, so you are seeing this as a fallback"这句话是一个错误信息，表明应用程序中没有为路径"/error"定义映射，因此您看到了这个回退信息。它是一个常见的错误，可能是由于配置问题、路由错误或资源文件缺失等原因导致的。这个错误信息通常出现在Java应用程序中，如Word源码中的Java应用程序，以及Eclipse部署的项目中。您可以检查您的应用程序配置和路由设置，以确保正确地定义了路径映射，从而解决这个错误。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
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