The current request is not a multipart request
场景：用springmvc上传文件时报The current request is not a multipart request异常
用springmvc上传文件时报The current request is not a multipart request错误
用springmvc上传文件时报The current request is not a multipart request错误
原因：前台表单中没有指定method为POST，文件不能通过get方式上传。