点击会提供对话框选择另存为:
response.setHeader( “Content-Disposition “, “attachment;filename= “+filename);
通过IE浏览器直接选择相关应用程序插件打开:
response.setHeader( “Content-Disposition “, “inline;filename= “+fliename)
下载前询问(是打开文件还是保存到计算机)
response.setHeader( “Content-Disposition “, “filename= “+filename);