servlet getWriter() has already been called for this response
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Servlet代码:OutputStream os = response.getOutputStream();response.setContentType("application/msexcel");response.setHeader("Content-disposition","attachment; filename=Excel1.xls");报错:getWriter() has already been called for this response解决办法:response.reset();加入这句就搞定了OutputStream os = response.getOutputStream();response.setContentType("application/msexcel");response.setHeader("Content-disposition","attachment; filename=Excel1.xls");
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