org.apache.jasper.JasperException: getOutputStream() has already been called for this response
<%
try{
ResultSet rs = userData.queryImgUnderWrite("040311000");
int i=0;
if(rs.next()){
InputStream in = rs.getBinaryStream("imgUnderWrite");
response.reset();
response.setContentType("image/jpeg");
OutputStream os = response.getOutputStream();
byte[] b = new byte[1024];
int len;
while((len=in.read(b,0,b.length))>0)
os.write(b,0,len);
in.close();
rs.close();
}
%>
请问怎么改有什么问题啊?