C# MVC4上传图像并插入数据库
几天前我在MVC4 visual studio工作。我真的是新手，希望任何人都能帮助我 我在我的网站上有一个表单，输入类型为text，输入类型为file 我想在数据库中插入一个包含多个imageuploads的新项目 我尝试在视图、控制器和模型中这样做 我搜索了一些东西，并找到了一个代码谁帮助了很多上传的几个图像 但我想要的是，当我点击按钮时，上传所有图像，并将其他字段的所有信息和所有图像的文件名插入到我的表中。因此，我可以在另一个页面中选择与此id关联的所有图像 希望有人能帮上忙 这是我的密码： 提前谢谢 查看：C# MVC4上传图像并插入数据库,c#,asp.net,asp.net-mvc,asp.net-mvc-4,file-upload,C#,Asp.net,Asp.net Mvc,Asp.net Mvc 4,File Upload,几天前我在MVC4 visual studio工作。我真的是新手，希望任何人都能帮助我 我在我的网站上有一个表单，输入类型为text，输入类型为file 我想在数据库中插入一个包含多个imageuploads的新项目 我尝试在视图、控制器和模型中这样做 我搜索了一些东西，并找到了一个代码谁帮助了很多上传的几个图像 但我想要的是，当我点击按钮时，上传所有图像，并将其他字段的所有信息和所有图像的文件名插入到我的表中。因此，我可以在另一个页面中选择与此id关联的所有图像 希望有人能帮上忙 这是我的密码
@using (Html.BeginForm("Uploading", "AdicionarRevista", FormMethod.Post, new { enctype = "multipart/form-data" }))
{
<label for="file">Nome da Empresa:</label>
<input type="text" name="Name" id="nome" /><br />
<label for="file">Titulo da Revista:</label>
<input type="text" name="Title" id="titulo" /> <br />
<label for="file">Upload:</label>
<input type="file" name="ImageUploaded" id="btnUpload" multiple="multiple" accept="image/*" /> <br />
<button type="submit" id="Upload">Upload</button>
}
[HttpPost]
public ActionResult Uploading(ImageModel infouploadimage)
{
for (int i = 0; i < Request.Files.Count; i++)
{
if (Request.Files[i].ContentLength > 0)
{
HttpPostedFileBase uploadedFile = Request.Files[i];
string fileName = Guid.NewGuid().ToString();
string serverPath = Server.MapPath("~");
string imagesPath = serverPath + "Content\\Images\\";
string thumsise = Path.Combine(imagesPath, "Thumb" + fileName);
string thumbPath = Path.Combine(imagesPath, "Thu" + fileName);
string fullPath = Path.Combine(imagesPath, "Full" + fileName);
string Bigpath = Path.Combine(imagesPath, "big" + fileName);
string Bigpatha = Path.Combine(imagesPath, "biga" + fileName);
string Bigpathb = Path.Combine(imagesPath, "bigb" + fileName);
string Bigpathc = Path.Combine(imagesPath, "bigc" + fileName);
ImageModel.ResizeAndSave(thumsise, fileName, uploadedFile.InputStream, 80, true);
ImageModel.ResizeAndSave(thumbPath, fileName, uploadedFile.InputStream, 100, true);
ImageModel.ResizeAndSave(fullPath, fileName, uploadedFile.InputStream, 500, true);
ImageModel.ResizeAndSave(Bigpath, fileName, uploadedFile.InputStream, 200, true);
ImageModel.ResizeAndSave(Bigpatha, fileName, uploadedFile.InputStream, 250, true);
ImageModel.ResizeAndSave(Bigpathb, fileName, uploadedFile.InputStream, 150, true);
ImageModel.ResizeAndSave(Bigpathc, fileName, uploadedFile.InputStream, 50, true);
}
}
return RedirectToAction("Index", "Home");
}
public class ImageModel
{
[Required]
public string Name{ get; set; }
public string Title{ get; set; }
public HttpPostedFileWrapper ImageUploaded { get; set; }
public static void ResizeAndSave(string savePath, string fileName, Stream imageBuffer, int maxSideSize, bool makeItSquare)
{
int newWidth;
int newHeight;
Image image = Image.FromStream(imageBuffer);
int oldWidth = image.Width;
int oldHeight = image.Height;
Bitmap newImage;
if (makeItSquare)
{
int smallerSide = oldWidth >= oldHeight ? oldHeight : oldWidth;
double coeficient = maxSideSize / (double)smallerSide;
newWidth = Convert.ToInt32(coeficient * oldWidth);
newHeight = Convert.ToInt32(coeficient * oldHeight);
Bitmap tempImage = new Bitmap(image, newWidth, newHeight);
int cropX = (newWidth - maxSideSize) / 2;
int cropY = (newHeight - maxSideSize) / 2;
newImage = new Bitmap(maxSideSize, maxSideSize);
Graphics tempGraphic = Graphics.FromImage(newImage);
tempGraphic.SmoothingMode = SmoothingMode.AntiAlias;
tempGraphic.InterpolationMode = InterpolationMode.HighQualityBicubic;
tempGraphic.PixelOffsetMode = PixelOffsetMode.HighQuality;
tempGraphic.DrawImage(tempImage, new Rectangle(0, 0, maxSideSize, maxSideSize), cropX, cropY, maxSideSize, maxSideSize, GraphicsUnit.Pixel);
}
else
{
int maxSide = oldWidth >= oldHeight ? oldWidth : oldHeight;
if (maxSide > maxSideSize)
{
double coeficient = maxSideSize / (double)maxSide;
newWidth = Convert.ToInt32(coeficient * oldWidth);
newHeight = Convert.ToInt32(coeficient * oldHeight);
}
else
{
newWidth = oldWidth;
newHeight = oldHeight;
}
newImage = new Bitmap(image, newWidth, newHeight);
}
newImage.Save(savePath + fileName + ".jpg", ImageFormat.Jpeg);
//newImage.Save(savePath + fileName + ".jpg", ImageFormat.Jpeg);
image.Dispose();
newImage.Dispose();
}
public void infouploadimage(string name, string title,string filename)
{
Name= name;
Title= title;
ImageUploaded = filename; <== ERROR HERE ALSO
string connection = ConfigurationManager.ConnectionStrings["DefaultConnection"].ConnectionString;
using (SqlConnection connect = new SqlConnection(connection))
{
string query = "Insert Into MYtable(Name, Title, Images) Values(@name, @title, ???)";
SqlCommand command = new SqlCommand(query, connect);
command.Parameters.AddWithValue("NomeEmpresa", n_empresa);
command.Parameters.AddWithValue("Titulo", titulo_revista);
//command.Parameters.AddWithValue("filename", ImageUploaded);
connect.Open();
command.ExecuteNonQuery();
}
}
}
@使用（Html.BeginForm（“上传”，“AdicionarRevista”，FormMethod.Post，new{enctype=“multipart/formdata”}））
{
Nome da Empresa：
提图洛·达雷维斯塔：
上传：
上传
}
@using (Html.BeginForm("Uploading", "AdicionarRevista", FormMethod.Post, new { enctype = "multipart/form-data" }))
{
<label for="file">Nome da Empresa:</label>
<input type="text" name="Name" id="nome" /><br />
<label for="file">Titulo da Revista:</label>
<input type="text" name="Title" id="titulo" /> <br />
<label for="file">Upload:</label>
<input type="file" name="ImageUploaded" id="btnUpload" multiple="multiple" accept="image/*" /> <br />
<button type="submit" id="Upload">Upload</button>
}
[HttpPost]
public ActionResult Uploading(ImageModel infouploadimage)
{
for (int i = 0; i < Request.Files.Count; i++)
{
if (Request.Files[i].ContentLength > 0)
{
HttpPostedFileBase uploadedFile = Request.Files[i];
string fileName = Guid.NewGuid().ToString();
string serverPath = Server.MapPath("~");
string imagesPath = serverPath + "Content\\Images\\";
string thumsise = Path.Combine(imagesPath, "Thumb" + fileName);
string thumbPath = Path.Combine(imagesPath, "Thu" + fileName);
string fullPath = Path.Combine(imagesPath, "Full" + fileName);
string Bigpath = Path.Combine(imagesPath, "big" + fileName);
string Bigpatha = Path.Combine(imagesPath, "biga" + fileName);
string Bigpathb = Path.Combine(imagesPath, "bigb" + fileName);
string Bigpathc = Path.Combine(imagesPath, "bigc" + fileName);
ImageModel.ResizeAndSave(thumsise, fileName, uploadedFile.InputStream, 80, true);
ImageModel.ResizeAndSave(thumbPath, fileName, uploadedFile.InputStream, 100, true);
ImageModel.ResizeAndSave(fullPath, fileName, uploadedFile.InputStream, 500, true);
ImageModel.ResizeAndSave(Bigpath, fileName, uploadedFile.InputStream, 200, true);
ImageModel.ResizeAndSave(Bigpatha, fileName, uploadedFile.InputStream, 250, true);
ImageModel.ResizeAndSave(Bigpathb, fileName, uploadedFile.InputStream, 150, true);
ImageModel.ResizeAndSave(Bigpathc, fileName, uploadedFile.InputStream, 50, true);
}
}
return RedirectToAction("Index", "Home");
}
public class ImageModel
{
[Required]
public string Name{ get; set; }
public string Title{ get; set; }
public HttpPostedFileWrapper ImageUploaded { get; set; }
public static void ResizeAndSave(string savePath, string fileName, Stream imageBuffer, int maxSideSize, bool makeItSquare)
{
int newWidth;
int newHeight;
Image image = Image.FromStream(imageBuffer);
int oldWidth = image.Width;
int oldHeight = image.Height;
Bitmap newImage;
if (makeItSquare)
{
int smallerSide = oldWidth >= oldHeight ? oldHeight : oldWidth;
double coeficient = maxSideSize / (double)smallerSide;
newWidth = Convert.ToInt32(coeficient * oldWidth);
newHeight = Convert.ToInt32(coeficient * oldHeight);
Bitmap tempImage = new Bitmap(image, newWidth, newHeight);
int cropX = (newWidth - maxSideSize) / 2;
int cropY = (newHeight - maxSideSize) / 2;
newImage = new Bitmap(maxSideSize, maxSideSize);
Graphics tempGraphic = Graphics.FromImage(newImage);
tempGraphic.SmoothingMode = SmoothingMode.AntiAlias;
tempGraphic.InterpolationMode = InterpolationMode.HighQualityBicubic;
tempGraphic.PixelOffsetMode = PixelOffsetMode.HighQuality;
tempGraphic.DrawImage(tempImage, new Rectangle(0, 0, maxSideSize, maxSideSize), cropX, cropY, maxSideSize, maxSideSize, GraphicsUnit.Pixel);
}
else
{
int maxSide = oldWidth >= oldHeight ? oldWidth : oldHeight;
if (maxSide > maxSideSize)
{
double coeficient = maxSideSize / (double)maxSide;
newWidth = Convert.ToInt32(coeficient * oldWidth);
newHeight = Convert.ToInt32(coeficient * oldHeight);
}
else
{
newWidth = oldWidth;
newHeight = oldHeight;
}
newImage = new Bitmap(image, newWidth, newHeight);
}
newImage.Save(savePath + fileName + ".jpg", ImageFormat.Jpeg);
//newImage.Save(savePath + fileName + ".jpg", ImageFormat.Jpeg);
image.Dispose();
newImage.Dispose();
}
public void infouploadimage(string name, string title,string filename)
{
Name= name;
Title= title;
ImageUploaded = filename; <== ERROR HERE ALSO
string connection = ConfigurationManager.ConnectionStrings["DefaultConnection"].ConnectionString;
using (SqlConnection connect = new SqlConnection(connection))
{
string query = "Insert Into MYtable(Name, Title, Images) Values(@name, @title, ???)";
SqlCommand command = new SqlCommand(query, connect);
command.Parameters.AddWithValue("NomeEmpresa", n_empresa);
command.Parameters.AddWithValue("Titulo", titulo_revista);
//command.Parameters.AddWithValue("filename", ImageUploaded);
connect.Open();
command.ExecuteNonQuery();
}
}
}
[HttpPost]
公共操作结果上载（ImageModel infouploadimage）
{
对于（int i=0；i0）
{
HttpPostedFileBase uploadedFile=Request.Files[i]；
字符串文件名=Guid.NewGuid（）.ToString（）；
字符串serverPath=Server.MapPath（“~”）；
字符串imagesPath=serverPath+“Content\\Images\\”；
字符串thumsse=Path.Combine（imagesPath，“Thumb”+文件名）；
字符串thumbPath=Path.Combine（imagesPath，“Thu”+文件名）；
字符串fullPath=Path.Combine（imagesPath，“Full”+文件名）；
字符串Bigpath=Path.Combine（imagesPath，“big”+文件名）；
字符串Bigpatha=Path.Combine（imagesPath，“biga”+文件名）；
字符串Bigpathb=Path.Combine（imagesPath，“bigb”+文件名）；
字符串Bigpathc=Path.Combine（imagesPath，“bigc”+文件名）；
ResizeAndSave（thumsse，文件名，uploadedFile.InputStream，80，true）；
ResizeAndSave（thumbPath，文件名，uploadedFile.InputStream，100，true）；
ResizeAndSave（完整路径，文件名，uploadedFile.InputStream，500，true）；
ResizeAndSave（Bigpath，文件名，uploadedFile.InputStream，200，true）；
ResizeAndSave（Bigpatha，文件名，uploadedFile.InputStream，250，true）；
ResizeAndSave（Bigpathb，文件名，uploadedFile.InputStream，150，true）；
ResizeAndSave（Bigpathc，文件名，uploadedFile.InputStream，50，true）；
}
}
返回重定向到操作（“索引”、“主页”）；
}
@using (Html.BeginForm("Uploading", "AdicionarRevista", FormMethod.Post, new { enctype = "multipart/form-data" }))
{
<label for="file">Nome da Empresa:</label>
<input type="text" name="Name" id="nome" /><br />
<label for="file">Titulo da Revista:</label>
<input type="text" name="Title" id="titulo" /> <br />
<label for="file">Upload:</label>
<input type="file" name="ImageUploaded" id="btnUpload" multiple="multiple" accept="image/*" /> <br />
<button type="submit" id="Upload">Upload</button>
}
[HttpPost]
public ActionResult Uploading(ImageModel infouploadimage)
{
for (int i = 0; i < Request.Files.Count; i++)
{
if (Request.Files[i].ContentLength > 0)
{
HttpPostedFileBase uploadedFile = Request.Files[i];
string fileName = Guid.NewGuid().ToString();
string serverPath = Server.MapPath("~");
string imagesPath = serverPath + "Content\\Images\\";
string thumsise = Path.Combine(imagesPath, "Thumb" + fileName);
string thumbPath = Path.Combine(imagesPath, "Thu" + fileName);
string fullPath = Path.Combine(imagesPath, "Full" + fileName);
string Bigpath = Path.Combine(imagesPath, "big" + fileName);
string Bigpatha = Path.Combine(imagesPath, "biga" + fileName);
string Bigpathb = Path.Combine(imagesPath, "bigb" + fileName);
string Bigpathc = Path.Combine(imagesPath, "bigc" + fileName);
ImageModel.ResizeAndSave(thumsise, fileName, uploadedFile.InputStream, 80, true);
ImageModel.ResizeAndSave(thumbPath, fileName, uploadedFile.InputStream, 100, true);
ImageModel.ResizeAndSave(fullPath, fileName, uploadedFile.InputStream, 500, true);
ImageModel.ResizeAndSave(Bigpath, fileName, uploadedFile.InputStream, 200, true);
ImageModel.ResizeAndSave(Bigpatha, fileName, uploadedFile.InputStream, 250, true);
ImageModel.ResizeAndSave(Bigpathb, fileName, uploadedFile.InputStream, 150, true);
ImageModel.ResizeAndSave(Bigpathc, fileName, uploadedFile.InputStream, 50, true);
}
}
return RedirectToAction("Index", "Home");
}
public class ImageModel
{
[Required]
public string Name{ get; set; }
public string Title{ get; set; }
public HttpPostedFileWrapper ImageUploaded { get; set; }
public static void ResizeAndSave(string savePath, string fileName, Stream imageBuffer, int maxSideSize, bool makeItSquare)
{
int newWidth;
int newHeight;
Image image = Image.FromStream(imageBuffer);
int oldWidth = image.Width;
int oldHeight = image.Height;
Bitmap newImage;
if (makeItSquare)
{
int smallerSide = oldWidth >= oldHeight ? oldHeight : oldWidth;
double coeficient = maxSideSize / (double)smallerSide;
newWidth = Convert.ToInt32(coeficient * oldWidth);
newHeight = Convert.ToInt32(coeficient * oldHeight);
Bitmap tempImage = new Bitmap(image, newWidth, newHeight);
int cropX = (newWidth - maxSideSize) / 2;
int cropY = (newHeight - maxSideSize) / 2;
newImage = new Bitmap(maxSideSize, maxSideSize);
Graphics tempGraphic = Graphics.FromImage(newImage);
tempGraphic.SmoothingMode = SmoothingMode.AntiAlias;
tempGraphic.InterpolationMode = InterpolationMode.HighQualityBicubic;
tempGraphic.PixelOffsetMode = PixelOffsetMode.HighQuality;
tempGraphic.DrawImage(tempImage, new Rectangle(0, 0, maxSideSize, maxSideSize), cropX, cropY, maxSideSize, maxSideSize, GraphicsUnit.Pixel);
}
else
{
int maxSide = oldWidth >= oldHeight ? oldWidth : oldHeight;
if (maxSide > maxSideSize)
{
double coeficient = maxSideSize / (double)maxSide;
newWidth = Convert.ToInt32(coeficient * oldWidth);
newHeight = Convert.ToInt32(coeficient * oldHeight);
}
else
{
newWidth = oldWidth;
newHeight = oldHeight;
}
newImage = new Bitmap(image, newWidth, newHeight);
}
newImage.Save(savePath + fileName + ".jpg", ImageFormat.Jpeg);
//newImage.Save(savePath + fileName + ".jpg", ImageFormat.Jpeg);
image.Dispose();
newImage.Dispose();
}
public void infouploadimage(string name, string title,string filename)
{
Name= name;
Title= title;
ImageUploaded = filename; <== ERROR HERE ALSO
string connection = ConfigurationManager.ConnectionStrings["DefaultConnection"].ConnectionString;
using (SqlConnection connect = new SqlConnection(connection))
{
string query = "Insert Into MYtable(Name, Title, Images) Values(@name, @title, ???)";
SqlCommand command = new SqlCommand(query, connect);
command.Parameters.AddWithValue("NomeEmpresa", n_empresa);
command.Parameters.AddWithValue("Titulo", titulo_revista);
//command.Parameters.AddWithValue("filename", ImageUploaded);
connect.Open();
command.ExecuteNonQuery();
}
}
}
公共类ImageModel
{
[必需]
公共字符串名称{get；set；}
公共字符串标题{get；set；}
公共HttpPostedFileWrapper映像上载{get；set；}
公共静态void ResizeAndSave（字符串保存路径、字符串文件名、流图像缓冲区、int-maxSideSize、bool-makeItSquare）
{
int newWidth；
int newHeight；
Image=Image.FromStream（imageBuffer）；
int oldWidth=image.Width；
int oldHeight=image.Height；
位图图像；
if（makeItSquare）
{
int smallerSide=oldWidth>=oldHeight？oldHeight:oldWidth；
双系数=maxSideSize/（双）smallerSide；
newWidth=Convert.ToInt32（系数*旧宽度）；
新高度=转换为32（系数*旧高度）；
位图tempImage=新位图（图像、新宽度、新高度）；
intcropx=（newWidth-maxSideSize）/2；
int cropY=（newHeight-maxSideSize）/2；
newImage=新位图（maxSideSize，maxSideSize）；
Graphics tempGraphic=Graphics.FromImage（新图像）；
tempGraphic.SmoothingMode=SmoothingMode.AntiAlias；
tempGraphic.InterpolationMode=InterpolationMode.HighQualityBicubic；
tempGraphic.PixelOffsetMode=PixelOffsetMode.HighQuality；
tempGraphic.DrawImage（tempImage，新矩形（0，0，maxSideSize，MaxSideSide Size），cropX，cropY，MaxSideSide Size，MaxSideSide Size，GraphicsUnit.Pixel）；
}
其他的
{
int maxSide=oldWidth>=oldHeight？oldWidth:oldHeight；
如果（maxSide>maxSideSize）
{
双系数=maxSideSize/（双）maxSide；
newWidth=Convert.ToInt32（系数*旧宽度）；
新高度=转换为32（系数*旧高度）；
}
其他的
{
新宽度=旧宽度；
新高度=旧高度；
}
newImage=新位图（图像、新宽度、新高度）；
}
newImage.Save（保存路径+文件名+“.jpg”，ImageFormat.Jpeg）；
//newImage.Save（保存路径+文件名+“.jpg”，ImageFormat.Jpeg）；
image.Dispose（）；
Dispose（）；
}
public void infouploadimage（字符串名称、字符串标题、字符串文件名）
{
名称=名称；
头衔=头衔；
ImageUpload=filename；首先，在控制器中的POST方法内设置一个断点。调试时，让执行命中此断点，并验证模型是否按预期设置了所有属性。否则，将表单绑定到模型时可能会出现问题
另外，如果您熟悉SQL概要文件