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HttpServletRequest request = (HttpServletRequest) req;
ServletInputStream is = req.getInputStream();
int
length=req.getContentLength();
byte
[] ba =
new
byte
[length];
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以上代码在doFilter中读取了post请求的内容,之后发现servlet已经无法读取该内容,因为ServletInputStream不支持mark,没法回头
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原文地址：http://my.oschina.net/u/1455908/blog/489000
