exception : Map the exception thrown by the Action to the result, and automatically handle the exception through redirection, generally as the final interceptor
chain : Allows the current Action to use the attributes of the last executed Action. This interceptor is usually used with the result type of the chain (<result type="chain"/ ··· ···>)
conversionError : Store the conversion error information in the Action field, including the converted string and parameter types, etc.
debugging : Provide more debugging information for developers in Struts2 development mode
fileUpload : This interceptor is mainly used for file upload, and its main responsibility is to parse the content of the file field in the form
i18n : Interceptor that supports internationalization, its main responsibility is to put the selected language and region into the user's Session domain
modelDriven : When an Action class implements the ModelDriven interface, this interceptor is responsible for storing the result of getModel() in ValueStack
params : Parse the parameters in the Http request and set the parameter value to the attribute value corresponding to the Action
servletConfig : Provides the HttpServletRequest method and HttpServletResponse method that can directly access ServletAPI for Action in the form of a map
validation : complete data validation by executing the validator defined in XxxAction-validation.xml
workflow : Define the default workflow for the Action, generally following other interceptors such as validation, skip the Action and redirect to the INPUT view when the validation fails
