程序包 cn.taketoday.web.handler.result

类 RenderedImageReturnValueHandler

java.lang.Object

cn.taketoday.web.handler.result.RenderedImageReturnValueHandler

所有已实现的接口:

HandlerMethodReturnValueHandler, ReturnValueHandler

public class RenderedImageReturnValueHandler
extends Object
implements HandlerMethodReturnValueHandler

Render an image to HTTP response-body

Apply contentType contentType to HTTP response-header

作者:

TODAY 2019-07-14 15:15

另请参阅:

• RenderedImage

字段概要

字段

修饰符和类型	字段	说明
private String	contentType
private String	formatName
static final String	IMAGE_PNG

从接口继承的字段 cn.taketoday.web.ReturnValueHandler

NONE_RETURN_VALUE

构造器概要

构造器

构造器	说明
RenderedImageReturnValueHandler()

方法概要

修饰符和类型	方法	说明
String	getContentType()
String	getFormatName()
void	handleReturnValue(RequestContext context, Object handler, Object returnValue)	Handle result of the handler
void	setContentType(MediaType contentType)	set the response content-type
void	setContentType(String contentType)	set the response content-type
void	setFormatName(String formatName)
boolean	supportsHandlerMethod(HandlerMethod handler)	Whether the given method is supported by this handler.
boolean	supportsReturnValue(Object returnValue)	If this ReturnValueHandler supports the target handler's result
void	write(RenderedImage image, RequestContext context)

从类继承的方法 java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

从接口继承的方法 cn.taketoday.web.handler.result.HandlerMethodReturnValueHandler

handleHandlerMethodReturnValue, supportsHandler

字段详细资料

IMAGE_PNG

public static final String IMAGE_PNG

另请参阅:

• 常量字段值

formatName

private String formatName

contentType

private String contentType

构造器详细资料

RenderedImageReturnValueHandler

public RenderedImageReturnValueHandler()

方法详细资料

supportsHandlerMethod

public boolean supportsHandlerMethod(HandlerMethod handler)

从接口复制的说明: HandlerMethodReturnValueHandler

Whether the given method is supported by this handler.

指定者:

supportsHandlerMethod 在接口中 HandlerMethodReturnValueHandler

返回:

true if this handler supports the supplied return type; false otherwise

另请参阅:

• HandlerMethod

supportsReturnValue

public boolean supportsReturnValue(Object returnValue)

从接口复制的说明: ReturnValueHandler

If this ReturnValueHandler supports the target handler's result

This method can test this ReturnValueHandler supports the target handler in application runtime

指定者:

supportsReturnValue 在接口中 ReturnValueHandler

参数:

returnValue - Target handler's return-value or result

返回:

If this ReturnValueHandler supports the target handler's result

handleReturnValue

public void handleReturnValue(RequestContext context,
 Object handler,
 Object returnValue)
                       throws IOException

从接口复制的说明: HandlerMethodReturnValueHandler

Handle result of the handler

指定者:

handleReturnValue 在接口中 HandlerMethodReturnValueHandler

指定者:

handleReturnValue 在接口中 ReturnValueHandler

参数:

context - Current HTTP request context

handler - handler may be HandlerMethod

returnValue - Handler execution result Or HandlerExceptionHandler return value

抛出:

IOException

write

public void write(RenderedImage image,
 RequestContext context)
           throws IOException

抛出:

IOException

setFormatName

public void setFormatName(String formatName)

getFormatName

public String getFormatName()

setContentType

public void setContentType(String contentType)

set the response content-type

参数:

contentType - response content-type

setContentType

public void setContentType(MediaType contentType)

set the response content-type

参数:

contentType - response content-type

getContentType

public String getContentType()