[Grails](groovy)--如何實作將下載頁面程式及解決下載檔案名稱亂碼問題

[Grails](groovy)--如何實作將下載頁面程式及解決下載檔案名稱亂碼問題

程式如下：

def file = new File(params.fileDir)    
response.setContentType("application/octet-stream")
response.setHeader("Content-disposition", "attachment;filename=${file.getName()}")

response.outputStream << file.newInputStream() // Performing a binary stream copy

如果你使用Firefox browser ,你的下載程式如果有檔案名稱為中文及檔案名稱中有空白，會不正常。
改程式如下：

def file = new File(params.fileDir)  
def fileName = file.getName()
response.setContentType("application/octet-stream")
response.setHeader("Content-disposition", "attachment;filename=\""+ 
new String( fileName.getBytes("big5"), "ISO8859-1" )+ "\"")
response.outputStream << file.newInputStream() // Performing a binary stream copy

參考資料：
Grails File Download

Groovy Grails, How do you stream or buffer a large file in a Controller's response

grails sending-a file to the browser