This article mainly introduces the spring boot custom exception view process analysis, this article through the example code introduction is very detailed, for everyone’s study or work has a certain reference learning value, need friends can refer to
1、 Source code analysis
First look at the source code and then write your own custom exception view
The resolveerrorview() function first calls a function that returns modelandview. The required parameters of the function are a string of status codes and a set of maps, which are error messages
This is the function shown in the figure below
The above function determines whether you have provided a dynamic error page under templates / error /
If provided, directly return the view name and error information
If you don’t provide the figure below
Check again if there is a static error page
The above figure is the judgment logic of static error page
this.resourceProperties.getStaticLocations()Return is a spring boot default several static page folder
Loop to find whether there is an error page in each folder
If the loop is not found, null is returned
2、 Custom exception view
If we want to customize our own exception view, we also override the resolveerrorview() function
However, we don’t need to write this cumbersome judgment any more. We just return a modelandview with the view name and error message
The above is the whole content of this article, I hope to help you learn, and I hope you can support developer more.