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类摘要 | 
| ActionComponent | 
This tag enables developers to call actions directly from a JSP page by specifying the action name and an optional
 namespace. | 
| ActionError | 
Render action errors if they exists the specific layout of the rendering depends on
 the theme itself. | 
| ActionMessage | 
Render action messages if they exists, specific rendering layout depends on the
 theme itself. | 
| Anchor | 
 A tag that creates a HTML <a >.This tag supports the same attributes as the "url" tag,
 including nested parameters using the "param" tag. | 
| AppendIterator | 
Component for AppendIteratorTag, which jobs is to append iterators to form an
 appended iterator whereby entries goes from one iterator to another after each
 respective iterator is exhausted of entries. | 
| Bean | 
Instantiates a class that conforms to the JavaBeans specification. | 
| Checkbox | 
Renders an HTML input element of type checkbox, populated by the specified property from the ValueStack | 
| CheckboxList | 
Creates a series of checkboxes from a list. | 
| ClosingUIBean | 
ClosingUIBean is the standard superclass for UI components such as div etc. | 
| ComboBox | 
The combo box is basically an HTML INPUT of type text and HTML SELECT grouped together to give you a combo box
 functionality. | 
| Component | 
Base class to extend for UI components. | 
| ComponentUrlProvider | 
Default implementation of UrlProvider | 
| ContextBean | 
Base class for control and data tags | 
| Date | 
Format Date object in different ways. | 
| Debug | 
  | 
| Div | 
Creates an HTML <div>
 
 | 
| DoubleListUIBean | 
DoubleListUIBean is the standard superclass of all Struts double list handling components. | 
| DoubleSelect | 
Renders two HTML select elements with second one changing displayed values depending on selected entry of first one | 
| Else | 
Perform basic condition flow. | 
| ElseIf | 
Perform basic condition flow. | 
| FieldError | 
Render field errors if they exists. | 
| File | 
Renders an HTML file input element | 
| Form | 
 Renders HTML an input form. | 
| Form.FieldVisitorValidatorWrapper | 
Wrap field validator, add visitor's field prefix to the field name. | 
| FormButton | 
FormButton. | 
| GenericUIBean | 
Renders an custom UI widget using the specified templates. | 
| Head | 
Renders parts of the HEAD section for an HTML file. | 
| Hidden | 
Renders an HTML input element of type hidden, populated by the specified property from the ValueStack | 
| I18n | 
Gets a resource bundle and place it on the value stack. | 
| If | 
Perform basic condition flow. | 
| Include | 
Include a servlet's output (result of servlet or a JSP page). | 
| InputTransferSelect | 
Create a input transfer select component which is basically an text input
 and  <select ... | 
| IteratorComponent | 
Iterator will iterate over a value. | 
| Label | 
Renders an HTML LABEL that will allow you to output label:name combination that has the same format treatment as
 the rest of your UI controls. | 
| ListUIBean | 
DoubleListUIBean is the standard superclass of all Struts list handling components. | 
| MergeIterator | 
Component for MergeIteratorTag, which job is to merge iterators and successive
 call to the merged iterator will cause each merge iterator to have a chance to
 expose its element, subsequently next call will allow the next iterator to expose
 its element. | 
| Number | 
 Format Number object in different ways. | 
| OptGroup | 
Create a optgroup component which needs to resides within a select tag | 
| OptionTransferSelect | 
Create a option transfer select component which is basically two <select ... | 
| Param | 
This tag can be used to parameterize other tags. | 
| Password | 
Render an HTML input tag of type password. | 
| Property | 
Used to get the property of a value, which will default to the top of
 the stack if none is specified | 
| Push | 
Push value on stack for simplified usage. | 
| Radio | 
Render a radio button input field. | 
| Reset | 
Render a reset button. | 
| Select | 
Render an HTML input tag of type select | 
| ServletUrlRenderer | 
Implementation of the UrlRenderer interface that creates URLs suitable in a servlet environment. | 
| Set | 
The set tag assigns a value to a variable in a specified scope. | 
| Submit | 
Render a submit button. | 
| Text | 
Render a I18n text message. | 
| TextArea | 
Render HTML textarea tag. | 
| TextField | 
Render an HTML input field of type text
 
 | 
| Token | 
Stop double-submission of forms. | 
| UIBean | 
UIBean is the standard superclass of all Struts UI components. | 
| UpDownSelect | 
Create a Select component with buttons to move the elements in the select component
 up and down. | 
| URL | 
This tag is used to create a URL. |