jQuery Ajax文件上传：所需的MultipartFile参数'file'不存在

试试这样：

var fd = new FormData();fd.append( "file", $("input[name=file]").files[0]); $.ajax({     type: "POST",     url: "/uploadFile",     data: fd,     contentType: false,     processdata: false,     cache: false,          success: function (result) {if ( result.reseponseInfo == "SUCCESS" ) {         } else {         }     },     error: function (result) {         console.log(result.responseText);     } });