第一种情况不指定目的端矩形的宽度和高度，而是自动缩放影像。
In the first case, the width and height of the destination rectangle are not specified, and the image is automatically scaled.
注意：客户端应用程序使用这个队列作为发送应答的目的地，可以通过JMS消息中的JMSReplyToHeader来指定。
Note: This queue is used by a client application as the destination to which replies are to be sent, specified via the JMSReplyTo header in JMS messages.
在输出通道上送出之讯息的目的端会在通道建立时指定。
The destination for messages sent out on an output channel is specified at channel creation time.
第二种情况会将目的端矩形的宽度和高度(以像素为单位)指定成与原始影像的宽度和高度相同。
In the second case, the width and height (measured in pixels) of the destination rectangle are specified to be the same as the width and height of the original image.
第二种情况会将目的端矩形的宽度和高度(以像素为单位)指定成与原始影像的宽度和高度相同。
In the second case, the width and height (measured in pixels) of the destination rectangle are specified to be the same as the width and height of the original image.
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