Struts2 default interceptor description

Interceptor/interceptor	Name	Description
Alias	Alias	The request parameters are converted between different requests, and the request content remains unchanged.
Chaining	Chain	This allows the attribute of the previous action to be accessed by the latter action. It is now used in combination with the result () of the chain type.
Checkbox	Checkbox	Added the checkbox automatic processing code, and set the content of the unselected checkbox to false. By default, HTML does not submit the unselected checkbox.
Cookies	Cookies	Use the configured name and value to specify cookies.
Conversion error	Conversionerror	Add an error from actioncontext to the action attribute Field
Create session	Createsession	Automatically create an httpsession to serve the interceptor that needs to use httpsession
Debugging	Debugging	Different debugging pages are provided to display internal data.
Execute and wait	Execandwait	Execute the action in the background and take the user to a waiting page in the middle
Exception	Exception	Locate the exception to a screen
File Upload	Fileupload	Provides the file upload function.
I18n	I18n	Record the selected locale
Logger	Logger	Name of the output action
Message store	Store	Stores or accesses messages, errors, and field errors in the action class that implements the validationaware interface.
Model Driven	Model-driven	If a class implements modeldriven, put the result of GetModel into the value stack.
Scoped Model Driven	Scoped-model-driven	If an action implements scoped Model Driven, this interceptor will retrieve the model from the corresponding scope and call the setmodel method in the action to put it into the action.
Parameters	Params	Set Request Parameters to action
Prepare	Prepare	If action implements preparable, the interceptor calls the prepare method of the action class.
Scope	Scope	Simple Method of saving action status to session and Application
Servlet config	Servletconfig	Provides methods for accessing httpservletrequest and httpservletresponse, and accesses the data by map.
Static Parameters	Staticparams	Set the content in the Struts. xml file to the corresponding action.
Roles	Roles	Determine whether the user has a role specified by JAAS. Otherwise, the role is not executed.
Timer	Timer	Time when the output action is executed
Token	Token	Use token to avoid double-clicking
Token session	Tokensession	It is the same as the token, but when you double-click it, the data is stored in the session.
Validation	Validation	Validate submitted data using the content defined in the action-validation.xml File
Workflow	Workflow	Call the validate method of action. If an error is returned, go to the input page again.
Parameter Filter	N/	Remove unnecessary parameters from the parameter list
Profiling	Profiling	Activate profile through Parameters

Interceptor/interceptor	Name	Description
Alias	Alias	The request parameters are converted between different requests, and the request content remains unchanged.
Chaining	Chain	This allows the attribute of the previous action to be accessed by the latter action. It is now used in combination with the result () of the chain type.
Checkbox	Checkbox	Added the checkbox automatic processing code, and set the content of the unselected checkbox to false. By default, HTML does not submit the unselected checkbox.
Cookies	Cookies	Use the configured name and value to specify cookies.
Conversion error	Conversionerror	Add an error from actioncontext to the action attribute Field
Create session	Createsession	Automatically create an httpsession to serve the interceptor that needs to use httpsession
Debugging	Debugging	Different debugging pages are provided to display internal data.
Execute and wait	Execandwait	Execute the action in the background and take the user to a waiting page in the middle
Exception	Exception	Locate the exception to a screen
File Upload	Fileupload	Provides the file upload function.
I18n	I18n	Record the selected locale
Logger	Logger	Name of the output action
Message store	Store	Stores or accesses messages, errors, and field errors in the action class that implements the validationaware interface.
Model Driven	Model-driven	If a class implements modeldriven, put the result of GetModel into the value stack.
Scoped Model Driven	Scoped-model-driven	If an action implements scoped Model Driven, this interceptor will retrieve the model from the corresponding scope and call the setmodel method in the action to put it into the action.
Parameters	Params	Set Request Parameters to action
Prepare	Prepare	If action implements preparable, the interceptor calls the prepare method of the action class.
Scope	Scope	Simple Method of saving action status to session and Application
Servlet config	Servletconfig	Provides methods for accessing httpservletrequest and httpservletresponse, and accesses the data by map.
Static Parameters	Staticparams	Set the content in the Struts. xml file to the corresponding action.
Roles	Roles	Determine whether the user has a role specified by JAAS. Otherwise, the role is not executed.
Timer	Timer	Time when the output action is executed
Token	Token	Use token to avoid double-clicking
Token session	Tokensession	It is the same as the token, but when you double-click it, the data is stored in the session.
Validation	Validation	Validate submitted data using the content defined in the action-validation.xml File
Workflow	Workflow	Call the validate method of action. If an error is returned, go to the input page again.
Parameter Filter	N/	Remove unnecessary parameters from the parameter list
Profiling	Profiling	Activate profile through Parameters