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This article is to share with you about how springMvc global exceptions are implemented. The editor thinks it is very practical, so share it with you as a reference and follow the editor to have a look.

The second method is generally used to implement global exceptions.

SimpleMappingExceptionResolver implements global exceptions, which mainly deal with view exceptions.

Configure objects in servlet-context.xml

The code for error.jsp:

Title default error page: ${ex}

You can also configure a special page for custom exceptions. For example, the value of key below is the corresponding custom exception, and the latter params_error is the corresponding custom exception.

The second way of implementation: implement the interface: HandlerExceptionResolver, and implement the method in it. The ParamsException exception is a custom parameter exception, which is judged here, and then mv.setViewName ("params_error") (the params_error here is a jsp file in the jsp package). Mv.addObjection ("ex", pe.geMsg) adds exception information to the ex here.

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