public ActionResult ImportStudent(Models.ExamRoom.Import vm)
{
if (ModelState.IsValid)
{
var file = Request.Files[nameof(vm.UploadFile)];
var fileSave = System.IO.Path.GetTempFileName();
file.SaveAs(fileSave);
using (var db = new XkSystem.Models.DbContext())
{
#region 1、Excel模版校验
if (Code.Common.GetFileType(file.FileName) != Code.FileType.Excel)
{
ModelState.AddModelError("", "上传的文件不是正确的EXCLE文件!");
return(View(vm));
}
var dt = Code.NpoiHelper.ExcelToDataTable(fileSave, System.IO.Path.GetExtension(file.FileName), string.Empty);
if (dt == null)
{
ModelState.AddModelError("", "无法读取上传的文件，请检查文件格式是否正确!");
return(View(vm));
}
var tbList = new List <string>()
{
"考场名称", "学生学号", "学生姓名"
};
var Text = string.Empty;
foreach (var a in tbList)
{
if (!dt.Columns.Contains(a.ToString()))
{
Text += a + ",";
}
}
if (!string.IsNullOrEmpty(Text))
{
ModelState.AddModelError("", "上传的EXCEL内容与预期不一致，缺少对应的字段：" + Text);
return(View(vm));
}
#endregion
#region 2、Excel数据读取
foreach (System.Data.DataRow dr in dt.Rows)
{
var dto = new Dto.ExamRoom.Import()
{
ExamRoomName = Convert.ToString(dr["考场名称"]),
StudentCode = Convert.ToString(dr["学号"]),
StudentName = Convert.ToString(dr["学生姓名"]),
};
if (vm.ImportList.Where(d => d.ExamRoomName == dto.ExamRoomName &&
d.StudentCode == dto.StudentCode &&
d.StudentName == dto.StudentName
).Count() == 0)
{
vm.ImportList.Add(dto);
}
}
vm.ImportList.RemoveAll(d =>
string.IsNullOrEmpty(d.ExamRoomName) &&
string.IsNullOrEmpty(d.StudentCode) &&
string.IsNullOrEmpty(d.StudentName)
);
if (vm.ImportList.Count == 0)
{
ModelState.AddModelError("", "Excel未读取到任何有效数据!");
return(View(vm));
}
#endregion
#region 3、Excel格式校验
var studentList = (from p in db.Table <Student.Entity.tbStudent>()
select p).ToList();
var examRoomList = (from p in db.Table <Exam.Entity.tbExamRoom>()
where p.tbExamCourse.Id == vm.ExamCourseId
select p).ToList();
foreach (var item in vm.ImportList)
{
if (string.IsNullOrEmpty(item.ExamRoomName))
{
item.Error = item.Error + "考场名称不能为空!";
continue;
}
else
{
if (examRoomList.Where(d => d.ExamRoomName == item.ExamRoomName).Count() == decimal.Zero)
{
item.Error = item.Error + "该考试课程的考场不存在数据库!";
continue;
}
}
if (string.IsNullOrEmpty(item.StudentName))
{
item.Error = item.Error + "学生姓名不能为空!";
continue;
}
if (studentList.Where(d => d.StudentCode == item.StudentCode && d.StudentName == item.StudentName).Count() == 0)
{
item.Error = item.Error + "学生姓名和学生学号不匹配!";
}
if (string.IsNullOrEmpty(item.StudentCode))
{
item.Error = item.Error + "学生学号不能为空!";
continue;
}
else
{
if (studentList.Where(d => d.StudentCode == item.StudentCode).Count() == decimal.Zero)
{
item.Error = item.Error + "该学号不存在数据库!";
continue;
}
}
}
if (vm.ImportList.Where(d => string.IsNullOrEmpty(d.Error) == false).Count() > 0)
{
vm.ImportList.RemoveAll(d => string.IsNullOrEmpty(d.Error));
return(View(vm));
}
#endregion
#region 4、Excel执行导入
var examStudentList = (from p in db.Table <Exam.Entity.tbExamStudent>()
where p.tbStudent.IsDeleted == false &&
p.tbExamRoom.IsDeleted == false
select p).ToList();
var addList = new List <Exam.Entity.tbExamStudent>();
foreach (var item in vm.ImportList)
{
Exam.Entity.tbExamStudent tb = null;
tb = examStudentList.Where(d => d.tbStudent.StudentCode == item.StudentCode && d.tbExamRoom.ExamRoomName == item.ExamRoomName).Select(d => d).FirstOrDefault();
if (tb == null)
{
tb = new Exam.Entity.tbExamStudent();
tb.tbExamRoom = (from p in db.Table <Exam.Entity.tbExamRoom>()
where p.ExamRoomName == item.ExamRoomName && p.tbExamCourse.Id == vm.ExamCourseId
select p).FirstOrDefault();
tb.tbStudent = (from p in db.Table <Student.Entity.tbStudent>()
where p.StudentCode == item.StudentCode
select p).FirstOrDefault();
addList.Add(tb);
}
}
db.Set <Exam.Entity.tbExamStudent>().AddRange(addList);
if (db.SaveChanges() > 0)
{
XkSystem.Areas.Sys.Controllers.SysUserLogController.Insert("批量导入考场学生");
vm.Status = true;
}
#endregion
}
}
vm.ImportList.RemoveAll(d => string.IsNullOrEmpty(d.Error));
return(View(vm));
}
public ActionResult ImportStudent()
{
var vm = new Models.ExamRoom.Import();
return(View(vm));
}
