快速上传文件到文件夹.感觉方便好用.

1.界面HTML代码.enctype="multipart/form-data"  不可缺. accept:显示上传文件的类型

<form id="uploadFileForm" method="post" enctype="multipart/form-data">
<div>
<input type="hidden" id="uploadFileVersion" name="version" />
<input type="hidden" id="uploadFileYear" name="year" />
<input type="file" id="File1" name="fileUpload"  accept=".xls,.doc,.txt,.pdf"  multiple>
<div><label id="uploadFileName" style="color:red;"></label></div>
</div>
</form>

2.提交真个From表单.其它参数.可以只能采用URL.传参数的方式. async: false,cache: false,contentType: false,processData: false,  必须设置这几个属性.不然存在兼容性问题.

var formData = new FormData($("#uploadFileForm")[0]);
var prompt = $.initMask({ content: "正在提交，请稍候..." });
//点击事件
$.ajax({
url: "/PriceSetting/PriceSettingSubmit?company_name=" + company_name + "&pj_name=" + pj_name + "&stage_id=" + stage_id + "&stage_name=" + stage_name + "&desc=" + desc + "&gridjson=" + JSON.stringify(list) + "",
data: formData,
type: 'post',
dataType: 'json',
async: false,
cache: false,
contentType: false,
processData: false,
beforeSend: function () {
//显示等待
prompt.show();
},
success: function (result) {
alert(result.Message);
//提示后关闭等待
prompt.close();
},
});

3.后端代码.

public ActionResult PriceAdjustmentSubmit()
{
//获取URL参数
var company_name = Request["company_name"];
var pj_name = Request["pj_name"];
var stage_id = Request["stage_id"];
var stage_name = Request["stage_name"];
var desc = Request["desc"];
var gridjson = Request["gridjson"];
bool isreport = true;

//保存附件到服务器
//定义文件存放的目标路径
string proDir = "/Content/PriceSettingFiles";
string targetDir = System.Web.HttpContext.Current.Server.MapPath("~" + proDir);
//创建目标路径
if (!Directory.Exists(targetDir))
{
Directory.CreateDirectory(targetDir);
}
//获取客户端上传的文件集合
HttpFileCollection files = System.Web.HttpContext.Current.Request.Files;
string filePath = string.Empty;
string filename = string.Empty;
for (int i = 0; i < files.Count; i++)
{
HttpPostedFile file = files[i];

if (file.ContentLength > 1024 * 1024 * 10)
{
ret = new
{
IsSuccess = false,
Message = "文件" + file.FileName + "不能超过10M！"
};
return Json(ret);
}
//取得文件的扩展名,并转换成小写
string fileExtension = System.IO.Path.GetExtension(file.FileName).ToLower();

if (!string.IsNullOrEmpty(fileExtension))
{
filename = "楼栋价格调整附件" + file.FileName;
if (!fileExtension.Equals(".docx") && !fileExtension.Equals(".xlsx") && !fileExtension.Equals(".pdf"))//校验文件类型
{
ret = new
{
IsSuccess = false,
Message = "上传文件格式不正确"
};
return Json(ret);
}
}
//组合成文件的完整路径
string path = Path.Combine(targetDir, timeStamp + Path.GetFileName(file.FileName));
filePath = proDir + "/" + timeStamp + file.FileName;
//保存上传的文件到指定路径中
if (System.IO.File.Exists(path))
{
System.IO.File.Delete(path);
}
file.SaveAs(path);//保存部分
}

}