在电脑上下载没问题，但是手机下载就有问题了，后台报错。
2014-06-11 14:21:09,523-[http-bio-8080-exec-9]com.mitian.common.web.CustomExceptionHandler-1647121ERROR-handle error request info ip:118.26.228.171, url:/coupon/down/pass/206null
ClientAbortException: java.net.SocketException: Connection reset by peer: socket write error
at org.apache.catalina.connector.OutputBuffer.realWriteBytes(OutputBuffer.java:413)
at org.apache.tomcat.util.buf.ByteChunk.append(ByteChunk.java:371)
at org.apache.catalina.connector.OutputBuffer.writeBytes(OutputBuffer.java:438)
at org.apache.catalina.connector.OutputBuffer.write(OutputBuffer.java:426)
Caused by: java.net.SocketException: Connection reset by peer: socket write error
at java.net.SocketOutputStream.socketWrite0(Native Method)
at java.net.SocketOutputStream.socketWrite(Unknown Source)
at java.net.SocketOutputStream.write(Unknown Source)
at org.apache.coyote.http11.InternalOutputBuffer.realWriteBytes(InternalOutputBuffer.java:215)
at org.apache.tomcat.util.buf.ByteChunk.flushBuffer(ByteChunk.java:480)
at org.apache.tomcat.util.buf.ByteChunk.append(ByteChunk.java:366)
at org.apache.coyote.http11.InternalOutputBuffer$OutputStreamOutputBuffer.doWrite(InternalOutputBuffer.java:240)
