我有一个直接写入输出流的操作。有时候,我得到以下错误:错误处理GroovyPageView:getOutputStream()已被调用此响应
Error processing GroovyPageView: getOutputStream() has already been called for this response
Caused by getOutputStream() has already been called for this response
这一个:
Executing action [getImage] of controller [buddyis.ItemController] caused exception: Runtime error executing action
Caused by Broken pipe
我该如何解决这些问题呢?下面列出了我使用的操作。
注:我使用Tomcat 7.0.42,如果这是很重要的!
def getImage() {
byte [] imageByteArray = // some image bytes
response.setHeader 'Content-disposition', "attachment; filename=\"${imageName}${imageExtension}\""
response.setContentType("image/pjpeg; charset=UTF-8")
response.contentLength = imageByteArray.size()
response.outputStream.write(imageByteArray)
response.outputStream.flush()
response.outputStream.close()
return
}
尝试呈现的东西(假),以指数或呈现状态代码,看看你仍然可以得到这个问题。在返回之前,你可以从'render(status:200)'或者至少'render'Done''开始。 – dmahapatro
为什么要这样做? – confile
请参阅[此问题](http://stackoverflow.com/questions/13184603/grails-error-using-httpservletresponse-to-export-file-for-download)。 – dmahapatro