我正在尝试使用实体框架将图片保存在Sqlserver 2008中的文件夹和存储路径中。我需要用图片注册用户。我的代码保存了除图片和图片路径之外的数据库中的所有数据。
My model is
{
using System;
using System.Collections.Generic;
using System.ComponentModel.DataAnnotations;
public partial class customer
{
[Display(Name="Username")]
public string user_id { get; set; }
[Display(Name = "Password")]
public string password { get; set; }
[Display(Name = "First Name")]
public string first_name { get; set; }
[Display(Name = "Last Name")]
public string last_name { get; set; }
[Display(Name = "Address")]
public string address { get; set; }
[Display(Name = "City")]
public string city { get; set; }
[Display(Name = "State")]
public string state { get; set; }
[Display(Name = "Zip")]
public Nullable<int> zip { get; set; }
[Display(Name = "Country")]
public string country { get; set; }
[Display(Name = "Email Address")]
public string email { get; set; }
[Display(Name = "Phone")]
public string phone { get; set; }
[Display(Name = "Picture")]
public string picture { get; set; }
[Display(Name = "Registration Date")]
public Nullable<System.DateTime> reg_date { get; set; }
[Display(Name = "Status")]
public string status { get; set; }
[Display(Name = "Keep me logged in")]
public bool rememberme { get; set; }
}
}
My Controller is
[HttpPost]
public ActionResult Register(customer customer, HttpPostedFileBase file)
{
if (ModelState.IsValid)
{
if (file != null)
{
file.SaveAs(HttpContext.Server.MapPath("~/image/") + file.FileName);
customer.picture = file.FileName;
}
onlinebookstoreEntities1 db = new onlinebookstoreEntities1();
db.customers.Add(customer);
db.SaveChanges();
return RedirectToAction("Index","Home");
}
return View(customer);
}
and my view is
@using (Html.BeginForm("Register", "Account", FormMethod.Post, new { enctype = "multipart/form-data" })) {
<div class="editor-label">
@Html.LabelFor(model => model.first_name)
</div>
<div class="txtreg">
@Html.EditorFor(model => model.first_name)
</div>
<div class="editor-label">
@Html.LabelFor(model => model.last_name)
</div>
<div class="txtreg">
@Html.EditorFor(model => model.last_name)
</div>
<div class="editor-label">
@Html.LabelFor(model => model.user_id)
</div>
<div class="txtreg">
@Html.EditorFor(model => model.user_id)
</div>
<div class="editor-label">
@Html.LabelFor(model => model.password)
</div>
<div class="txtreg">
@Html.EditorFor(model => model.password)
</div>
<div class="editor-label">
@Html.LabelFor(model => model.address)
</div>
<div class="txtreg">
@Html.EditorFor(model => model.address)
</div>
<div class="editor-label">
@Html.LabelFor(model => model.city)
</div>
<div class="txtreg">
@Html.EditorFor(model => model.city)
</div>
<div class="editor-label">
@Html.LabelFor(model => model.state)
</div>
<div class="txtreg">
@Html.EditorFor(model => model.state)
</div>
<div class="editor-label">
@Html.LabelFor(model => model.zip)
</div>
<div class="txtreg">
@Html.EditorFor(model => model.zip)
</div>
<div class="editor-label">
@Html.LabelFor(model => model.country)
</div>
<div class="txtreg">
@Html.EditorFor(model => model.country)
</div>
<div class="editor-label">
@Html.LabelFor(model => model.email)
</div>
<div class="txtreg">
@Html.EditorFor(model => model.email)
</div>
<div class="editor-label">
@Html.LabelFor(model => model.phone)
</div>
<div class="txtreg">
@Html.EditorFor(model => model.phone)
</div>
<div class="editor-label">
@Html.LabelFor(model => model.picture)
</div>
<div class="btnreg">
<input type="file" id="picture" value="Upload Picture" />
</div>
<div class="txtreg">
@Html.CheckBoxFor(model => model.rememberme) @Html.LabelFor(model => model.rememberme)
</div>
<input type="submit" value="Create Account" name="btnsub" />
}
答案 0 :(得分：0)
检查您的图片文件夹权限，如果没有，请将其设置为所有读取，写入和执行权限。尝试调试代码并检查文件是否为null或在 file.SaveAs 调用
时触发任何异常答案 1 :(得分：0)
如果您想在数据库中保存图片，您的属性必须如下所示：
[DisplayName("Billede")]
[MaxLength]
public byte[] PhotoFile { get; set; }
而不是：
[Display(Name = "Picture")]
public string picture { get; set; }
您可以像这样保存图片：
@using (Html.BeginForm("Create", "Photo", FormMethod.Post, new { enctype = "multipart/form-data" }))
{
@Html.DisplayNameFor(model => model.PhotoFile)
<input type="file" name="Image" />
PhotoController中的ActionResult方法将是
public ActionResult Create(Photo photo, HttpPostedFileBase image)
{
并实际保存照片本身
if (image != null)
{
photo.ImageFileName = image.FileName;
photo.ImageMimeType = image.ContentType;
photo.PhotoFile = new byte[image.ContentLength];
image.InputStream.Read(photo.PhotoFile, 0, image.ContentLength);
}
context.Add<Photo>(photo);
context.SaveChanges();
希望你可以连接点。
穆罕默德
答案 2 :(得分：0)
将url保存到db非常简单。同时你可以在db中以字节格式保存图片。在你的客户模型中你有
方法-1： 将字符串类型或任何其他类型更改为字节。 因此，在此图片中，如果要保存图片，则将图片转换为字节类型，而不是db中客户表中的字符串。
//before
[Display(Name = "Picture")]
public string picture { get; set; }
//After changing in db you add the table in entity framework .edmx and now it becomes
[Display(Name = "Picture")]
public byte[] picture { get; set; }
下面是您在db。中以字节格式保存图片的代码。
在您的控制器中
public ActionResult Register(customer model)
{
string ImageName = Path.GetFileName(file.FileName);
string physicalPath = Server.MapPath("~/images/" + ImageName);
file.SaveAs(physicalPath);
customer newRecord = new customer ();
newRecord.username= customer.username;
\\Assign for remaining feilds in table in this way.
using (MemoryStream ms = new MemoryStream())
{
file.InputStream.CopyTo(ms);
byte[] picArray = ms.GetBuffer();
newRecord.picture= picArray ;
}
onlinebookstoreEntities1 db = new onlinebookstoreEntities1();
db.customers.Add(newRecord);
db.SaveChanges();
}
在您的注册视图中
<div>
@using (Html.BeginForm("ConfigAssetData", "Home", new { @tabno = "3" }, FormMethod.Post, new { enctype = "multipart/form-data", @class = "form-horizontal" }))
{
<div class="editor-label">
@Html.LabelFor(model => model.first_name)
</div>
<div class="txtreg">
@Html.EditorFor(model => model.first_name)
</div>
<div class="editor-label">
@Html.LabelFor(model => model.last_name)
</div>
<div class="txtreg">
@Html.EditorFor(model => model.last_name)
</div>
<div class="editor-label">
@Html.LabelFor(model => model.user_id)
</div>
<div class="txtreg">
@Html.EditorFor(model => model.user_id)
</div>
<div class="editor-label">
@Html.LabelFor(model => model.password)
</div>
<div class="txtreg">
@Html.EditorFor(model => model.password)
</div>
<div class="editor-label">
@Html.LabelFor(model => model.address)
</div>
<div class="txtreg">
@Html.EditorFor(model => model.address)
</div>
<div class="editor-label">
@Html.LabelFor(model => model.city)
</div>
<div class="txtreg">
@Html.EditorFor(model => model.city)
</div>
@*UploadFile*@
**<input type="file" class="file-input" name="file"/>**
@*Similar code here...*@
}
</div>
方法-2： 特别是在您需要保存图片路径的情况下，您需要做的是： - 在你的控制器
public ActionResult Register(customer model)
{
string ImageName = Path.GetFileName(file.FileName);
string physicalPath = Server.MapPath("~/images/" + ImageName);
file.SaveAs(physicalPath);
customer newRecord = new customer ();
newRecord.username= customer.username;
//.......saving picture url......
newRecord.picture = physicalPath;
//Assign for remaining feilds in table in this way.
onlinebookstoreEntities1 db = new onlinebookstoreEntities1();
db.customers.Add(newRecord);
db.SaveChanges();
}
如果右键单击images文件夹并单击＆＃34;在Windows资源管理器中打开文件夹＆＃34;你可以看到你的照片上传。