RenderMapping (Spring Framework 4.3.30.RELEASE API)

```
@Target(METHOD)
@Retention(RUNTIME)
@Documented
public @interface RenderMapping
```
Annotation for mapping Portlet render requests onto handler methods.
从以下版本开始:
3.0
作者:
Juergen Hoeller, Sam Brannen
另请参阅:
RequestMapping

可选元素概要

可选元素
修饰符和类型	可选元素	说明
`String[]`	`params`	The parameters of the mapped request, narrowing the primary mapping.
`String`	`value`	Alias for `windowState()`.
`String`	`windowState`	The window state that the annotated render method applies for.

- 元素详细资料
  - value
```
@AliasFor("windowState")
String value
```
    Alias for windowState().
    默认值:
    ""
- - windowState
```
@AliasFor("value")
String windowState
```
    The window state that the annotated render method applies for.
    If not specified, the render method will be invoked for any window state within its general mapping.
    Standard Portlet specification values are supported: "NORMAL", "MAXIMIZED", "MINIMIZED".
    Custom window states can be used as well, as supported by the portal.
    从以下版本开始:
    4.2
    另请参阅:
    value(), PortletRequest.getWindowState()
    默认值:
    ""
- - params
```
String[] params
```
    The parameters of the mapped request, narrowing the primary mapping.
    Same format for any environment: a sequence of "myParam=myValue" style expressions, with a request only mapped if each such parameter is found to have the given value. "myParam" style expressions are also supported, with such parameters having to be present in the request (allowed to have any value). Finally, "!myParam" style expressions indicate that the specified parameter is not supposed to be present in the request.
    另请参阅:
    RequestMapping.params()
    默认值:
    {}