java - jsp+springMVC实现文件下载的时候后台抛出getOutputStream()异常
使用JSP+springMVC框架做的web平台，在做文件下载的时候，遇到这样的问题：
文件下载部分的代码是这样写的：
@RequestMapping("/ModelDownload{id}")
public String ModelDownLoad(@PathVariable int id, HttpServletResponse response){
String fileName = "download.txt";
String filePath = "D:\\";
String modelName = new ModelService().getModelById(id).getModelName();
System.out.println(modelName);
response.reset();
response.setContentType("application/x-download");
response.addHeader("Content-Disposition", "attachment;filename="+fileName);//重新设置响应头文件字段，设置下载文件的文件名
OutputStream OutputStream = null;
FileInputStream fileInputStream = null;
try {
OutputStream = response.getOutputStream();
fileInputStream = new FileInputStream(filePath+fileName);
byte[] buffer = new byte[1024*10];//设置文件大小上限为10M
for (int read; (read = fileInputStream.read(buffer)) != -1;){
OutputStream.write(buffer,0,read);
}
} catch (IOException e) {
// TODO Auto-generated catch block
System.out.println(e.toString());
}
finally{
try {
fileInputStream.close();
OutputStream.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
return "success";
}
百度了很多，几乎都是说在JSP上使用out对象进行clear()和close()操作的，根本没有针对后台操作遇到的相同问题的解决方案，求大神指导。
