var postData = new FormData();  
$.each($('#editForm').serializeArray(),function(key,row){ 
    postData.append(row.name,row.value);
}); 
var maxSize = 0;
$.each($("#attachImage")[0].files, function(i, file) {
    console.log(file);
    // maxSize += file.size;
    postData.append('photo['+i+']', file);
});  
if(maxSize > 0){
    var maxSizeMb = maxSize / 1000 / 1000;
    console.log(maxSizeMb);
    if(maxSizeMb > 10){
        alert('첨부 이미지는 한번에 10MB 까지 가능합니다.'); 
        return false;
    }
}  
$("#btnSubmit").prop("disabled", true);
$.ajax({
     url: "./uploadImage",
     data: postData,
     cache: false,
     contentType: false,
     processData: false,
     type: 'POST',
     dataType:'json',
     success: function(res) {
        $("#btnSubmit").prop("disabled", true);

    }
});