public void ProcessRequest(HttpContext context)
{
CommonFunction.CheckUser();
context.Response.CacheControl = "no-cache";
string courseNo = context.Request["courseNo"];
string classId = context.Request["classID"].Trim();
string termtag = context.Request["termtag"].Trim();
//取得选课信息
DalOperationAboutCourses dalOperationAboutCourses = new DalOperationAboutCourses();
DataTable dt = dalOperationAboutCourses.FindStudentInfoFromStudentListAndCorrelation(courseNo, classId, termtag).Tables[0];
//取得实验提交表信息
DalOperationAboutExperimentResources doaer = new DalOperationAboutExperimentResources();
DataTable dtExp = doaer.FindExperimentResourcesByCourseNo(courseNo, classId, termtag).Tables[0];
//取得对应的CourseNo已布置的全部实验统计信息
DataTable dtExperiment = doaer.GetExperimentsResourcesByCourseNo(courseNo, classId, termtag).Tables[0];
//取得作业提交表信息
DalOperationAboutSchoolWorks doask = new DalOperationAboutSchoolWorks();
DataTable dtSchwork = doask.FindSchoolWorksByCourseNo(courseNo, classId, termtag).Tables[0];
//取得对应的CourseNo已布置的全部作业统计信息
DataTable dtSchNotify = doask.GetSchoolWorksByCourseNo(courseNo, classId, termtag).Tables[0];
StringBuilder sb = new StringBuilder();
HSSFWorkbook workbook = new HSSFWorkbook();
//创建Excel单元格样式
HSSFCellStyle cellStyle = workbook.CreateCellStyle();
cellStyle.Alignment = HSSFCellStyle.ALIGN_RIGHT;
//创建WorkSheet
HSSFSheet sheet = workbook.CreateSheet("成绩统计表");
int rowCount = dt.Rows.Count;
sheet.CreateRow(0).CreateCell(0).SetCellValue("学生编号");
sheet.CreateRow(0).CreateCell(1).SetCellValue("学生姓名");
sheet.CreateRow(0).CreateCell(2).SetCellValue("课程编号");
for (int i = 0; i < dtExperiment.Rows.Count; i++)
{
sheet.CreateRow(0).CreateCell(i + 3).SetCellValue(dtExperiment.Rows[i]["experimentResourceTitle"].ToString().Trim());
}
for (int j = 0; j < dtSchNotify.Rows.Count; j++)
{
sheet.CreateRow(0).CreateCell(j + 3 + dtExperiment.Rows.Count).SetCellValue(dtSchNotify.Rows[j]["schoolWorkNotifyTitle"].ToString().Trim());
}
//填充每列的数据
string studentNo = null;
for (int i = 0; i < dt.Rows.Count; i++)
{
sheet.CreateRow(i + 1).CreateCell(0).SetCellValue(dt.Rows[i]["studentNo"].ToString().Trim());
sheet.CreateRow(i + 1).CreateCell(1).SetCellValue(dt.Rows[i]["studentName"].ToString().Trim());
sheet.CreateRow(i + 1).CreateCell(2).SetCellValue(dt.Rows[i]["courseNo"].ToString().Trim());
studentNo = dt.Rows[i]["studentNo"].ToString().Trim();
//局部变量，指明学生所有的实验数和作业数
int studentExperimentsCount = 0;
int studentSchoolWorksCount = 0;
//添加实验列数据
for (int j = 0; j < dtExp.Rows.Count; j++)
{
if (studentNo.Equals(dtExp.Rows[j]["studentNo"].ToString().Trim()))
{
studentExperimentsCount += 1;
sheet.CreateRow(i + 1).CreateCell(2 + studentExperimentsCount).SetCellValue(dtExp.Rows[j]["score"].ToString().Trim());
}
}
//添加作业列数据
for (int k = 0; k < dtSchwork.Rows.Count; k++)
{
if (studentNo.Equals(dtSchwork.Rows[k]["studentNo"].ToString().Trim()))
{
studentSchoolWorksCount += 1;
sheet.CreateRow(i + 1).CreateCell(2 + studentSchoolWorksCount + studentExperimentsCount).SetCellValue(dtSchwork.Rows[k]["score"].ToString().Trim());
}
}
}
IEnumerator rows = sheet.GetRowEnumerator();
while (rows.MoveNext())
{
HSSFRow row = (HSSFRow)rows.Current;
IEnumerator cols = row.GetCellEnumerator();
while (cols.MoveNext())
{
HSSFCell cell = (HSSFCell)cols.Current;
cell.CellStyle = cellStyle;
}
}
string fileName = "成绩统计" + UploadFiles.DateTimeString();
if (!Directory.Exists(context.Server.MapPath(System.Configuration.ConfigurationManager.AppSettings["ScoreExcelPath"])))
{
Directory.CreateDirectory(context.Server.MapPath(System.Configuration.ConfigurationManager.AppSettings["ScoreExcelPath"]));
}
System.IO.FileStream file = new System.IO.FileStream(HttpContext.Current.Server.MapPath(System.Configuration.ConfigurationManager.AppSettings["ScoreExcelPath"] + fileName + ".xls"), System.IO.FileMode.Create);
workbook.Write(file);
file.Dispose();
////插入值
FileInfo DownloadFile = new FileInfo(context.Server.MapPath(System.Configuration.ConfigurationManager.AppSettings["ScoreExcelPath"] + fileName + ".xls"));
context.Response.Clear();
context.Response.ClearHeaders();
context.Response.Buffer = false;
Encoding code = Encoding.GetEncoding("gb2312");
context.Response.ContentEncoding = Encoding.UTF8;
context.Response.HeaderEncoding = code;//这句很重要
context.Response.ContentType = "application/octet-stream";
context.Response.AppendHeader("Content-Disposition", "attachment;filename=" + fileName + ".xls");
context.Response.AppendHeader("Content-Length", DownloadFile.Length.ToString());
context.Response.WriteFile(DownloadFile.FullName);
if (File.Exists(context.Server.MapPath(System.Configuration.ConfigurationManager.AppSettings["ScoreExcelPath"] + fileName + ".xls")))
{
File.Delete(context.Server.MapPath(System.Configuration.ConfigurationManager.AppSettings["ScoreExcelPath"] + fileName + ".xls"));
}
context.Response.Flush();
}