su.getRequest().getParameter() 得不到input的值<form action="/smartUploadServlet.do" method="post" enctype="multipart/form-data"> <input name = "username" ><br> <input name = "filename" "><br>上传文件:<input type="file" name="myfile"><br> <input type="submit" value="提交">${result}<br></form>
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