public IActionResult AddS(StudentsAddSViewModel model)
{
if (ModelState.IsValid)
{
string uniqueFileName = null;
if (model.Photos != null && model.Photos.Count > 0)
{
uniqueFileName = ProcessUploadedFile(model);
}
Student newStudent = new Student
{
Name = model.Name,
Email = model.Email,
ClassName = model.ClassName,
PhotoPath = uniqueFileName,
};
_studentRepository.Add(newStudent);
//Student newStudent = _studentRepository.Add(student);
return(RedirectToAction("Data", new { id = newStudent.Id }));
}
return(View());
}
/// <summary>
/// 将图片保存到指定的路径中，并返回唯一的文件名
/// </summary>
/// <returns></returns>
private string ProcessUploadedFile(StudentsAddSViewModel model)
{
string uniqueFileName = null;
if (model.Photos.Count > 0)
{
foreach (var photo in model.Photos)
{
//将图片上传到WWWROOT的img文件夹中
//要获取到wwwroot文件夹的路径，我们需要注入ASP.NET Core提供的HostingEnvironment服务
//通过HostingEnvironment服务获取到wwwroot文件夹路径
string uploadsFolder = Path.Combine(_hostingEnvironment.WebRootPath, "img");
//为了保证文件名是唯一，在文件夹名后加一个新的GUID值和一个下划线
uniqueFileName = Guid.NewGuid().ToString() + "_" + photo.FileName;
string filePath = Path.Combine(uploadsFolder, uniqueFileName);
//使用了非托管资源，所以需要手动进行释放
using (var fileStream = new FileStream(filePath, FileMode.Create))
{
//使用IFormFile接口提供的CopyTo()方法将文件复制到wwwroot/img文件夹中
photo.CopyTo(fileStream);
}
// photo.CopyTo(new FileStream(filePath, FileMode.Create));
}
}
return(uniqueFileName);
}
