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@MultipartConfig
public class servletTest{
.............
doPost:
FileOutputStream fos=new FileOutputStream("E:\\demo\\upload.txt");
Part filePart = request.getPart("fileName");
InputStream in=filePart.getInputStream();
//InputStream in=request.getInputStream();//无法获取
OutputStream out=response.getOutputStream();
byte[] b=new byte[1024];
int len;
while((len=in.read(b))!=-1){
fos.write(b,0,len);
out.write(b,0,len);
System.out.println("--");
}
in.close();
fos.close();
out.close();