java 使用@ExceptionHandler 在 Spring MVC 中处理“错误 500”
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Handling "error 500" in Spring MVC using @ExceptionHandler
提问by mic4ael
(Firstly, I must say that I have been looking for answers on stackoverflow and the internet but haven't found sufficient answers)**I have just started my adventure with Spring MVC and my first task is to handle Internal Server Error using @ExceptionHandler annotation (first of all, i got to point out that I don't want to use error-page in web.xml). Briefly, whenever "error 500" occurs, there ought to be displayed a proper site with a link to the home site. So, my problem is that I don't know how to make method which follows @ExceptionHandler(Exception.class)invoked each time error 500 takes place.
（首先，我必须说我一直在寻找关于 stackoverflow 和互联网的答案，但还没有找到足够的答案）**我刚刚开始我的 Spring MVC 冒险，我的第一个任务是使用 @ExceptionHandler 处理内部服务器错误注释（首先，我必须指出我不想在 web.xml 中使用错误页面）。简而言之，无论何时发生“错误 500”，都应该显示一个带有指向主站点的链接的正确站点。所以，我的问题是我不知道如何制作@ExceptionHandler(Exception.class)每次发生错误 500 时调用的方法。
回答by Md. Kamruzzaman
If you use java configuration you may try like follows:
如果您使用 java 配置，您可以尝试如下：
@Configuration
public class ExcpConfig {
@Bean(name = "simpleMappingExceptionResolver")
public SimpleMappingExceptionResolver simpleMappingExceptionResolver() {
SimpleMappingExceptionResolver resolver= new SimpleMappingExceptionResolver();
Properties mappings = new Properties();
resolver.setExceptionMappings(mappings); // None by default
resolver.setExceptionAttribute("ErrorOccurred"); // Default is "exception"
resolver.setDefaultErrorView("500"); // 500.jsp
return resolver;
}
}
回答by Jimadilo
You can't actually do what you want with the @ExceptionHandler annotation. This is only for exceptions in a specific controller, not for more general things like error 500's.
你实际上不能用 @ExceptionHandler 注释做你想做的事。这仅适用于特定控制器中的异常，不适用于更一般的事情，例如错误 500。
You probably want to look at implementing the HandlerExceptionResolver interface, and wiring that in for more general exceptions.
您可能想要查看实现 HandlerExceptionResolver 接口，并将其连接到更一般的异常中。
Here's a link to it in the spring docs.
这是 spring 文档中的链接。
Let me know if you need any other help.
如果您需要任何其他帮助，请告诉我。
