第一步 引入dll
控制器代码
/// <summary> /// 导出Word表格 /// </summary> /// <param name="Pyaid">选中数据ID</param> /// <param name="type">是否结束的报告（状态）</param> public void ToWord(string[] Pyaid, int type) { //获取选中的id string[] j = Pyaid[0].Split(','); AchievementExpand achieve = new AchievementExpand(); if (Pyaid != null) { int[] output = Array.ConvertAll<string, int>(j, delegate (string s) { return int.Parse(s); }); if (output.Length > 0) { string filePath = null; for (int i = 0; i < output.Length; i++) { if (type == 0) { //获取所有成绩信息 string sql = @"SELECT su.subject_name, syp.AddTime, us.user_name, ac.*, st.student_no FROM Achievement ac LEFT JOIN student_info st ON ac.stu_id = st.student_id left join class_info sy ON sy.class_id=ac.cla_id left join user_info us on us.user_id=sy.class_teacher left join Sy_PracticalTraining syp on syp.ID=ac.pya_id left join subject su on su.subject_id=sy.class_subject WHERE ac.IsEnd=0 and ac.ID=" + output[i]; achieve = entity.Database.SqlQuery<AchievementExpand>(sql).FirstOrDefault(); // 创建HSSFWorkbook对象(excel的文档对象) } else { //获取历史成绩信息 string sql = @"SELECT su.subject_name, syp.AddTime, us.user_name, ac.*, st.student_no FROM Achievement ac LEFT JOIN student_info st ON ac.stu_id = st.student_id left join class_info sy ON sy.class_id=ac.cla_id left join user_info us on us.user_id=sy.class_teacher left join Sy_PracticalTraining syp on syp.ID=ac.pya_id left join subject su on su.subject_id=sy.class_subject WHERE ac.IsEnd=1 and ac.ID=" + output[i]; achieve = entity.Database.SqlQuery<AchievementExpand>(sql).FirstOrDefault(); } Random rd = new Random(); string fileName = achieve.PyaName + "-" + achieve.student_no + ".doc"; //存储路径 string path = Server.MapPath("~/UpFiles/DoxlFiles/") + fileName; //创建字符输出流 StreamWriter sw = new StreamWriter(path, true, System.Text.UnicodeEncoding.UTF8); //需要导出的内容 string str = ""; str += "<html><head><title>实训报告</title></head><body>"; str += "<div style='text-align:center'>实训报告</div>"; str += "<table border='1' cellspacing='0px'style='border - collapse:collapse; text - align:center'><tr style='background:#bec6b9'>"; str += "<th>学号</th>"; str += "<th>姓名</th><th>班级</th><th>专业</th><th>指导教师</th><th>实训名称</th><th>流程得分</th><th>教师评分</th> <th>利润率</th> <th>总分</th></tr><tr>"; str += "<td>" + achieve.student_no + "</td>"; str += "<td>" + achieve.Stu_Name + "</td><td>" + achieve.Claa_Name + "</td><td>" + achieve.subject_name + "</td><td>" + achieve.user_name + "</td><td>" + achieve.PyaName + "</td><td>" + achieve.Processscore + "</td><td>" + achieve.Teacherrating + "</td><td>" + achieve.rate + "</td><td>" + (achieve.Processscore + achieve.Teacherrating) + "</td></tr>"; str += "</table></body></html>"; //写入 sw.Write(str); sw.Close(); //把所有文件名放在字符串里用 | 隔开 filePath += fileName + "|"; } //调用压缩 DownLoadFiles(filePath); } } }
///<summary> /// 批量打包下载压缩 /// </summary> /// <param name="fileName">文件名称</param> public void DownLoadFiles(string filePath) { int length = filePath.Length; //截取除最后一位的 | 前面所有字符 filePath = filePath.Substring(0, length - 1); //所有放在服务器的文件的名字集合 List<string> filePaths = filePath.Split('|').ToList(); MemoryStream ms = new MemoryStream(); byte[] buffer = null; using (ZipFile file = ZipFile.Create(ms)) { file.BeginUpdate(); file.NameTransform = new MyNameTransfom();//通过这个名称格式化器，可以将里面的文件名进行一些处理。默认情况下，会自动根据文件的路径在zip中创建有关的文件夹。 //文件名集合循环 filePaths.ForEach(t => { string s = Server.MapPath(@"~/UpFiles/DoxlFiles/" + t); //循环把文件加入压缩包 file.Add(s); }); file.CommitUpdate(); buffer = new byte[ms.Length]; ms.Position = 0; ms.Read(buffer, 0, buffer.Length); } Response.AppendHeader("Content-Disposition", "attachment;filename=" + HttpUtility.UrlEncode("批量下载实训报告.zip", System.Text.Encoding.UTF8)); Response.BinaryWrite(buffer); Response.Flush(); Response.End(); //循环删除放在服务器的模板 filePaths.ForEach(t => { FileInfo fi = new FileInfo(Server.MapPath("~/UpFiles/DoxlFiles/" + t));//删除存在项目文件夹的模板 fi.Delete(); }); }
/// <summary> /// 压缩包帮助类 /// </summary> public class MyNameTransfom : ICSharpCode.SharpZipLib.Core.INameTransform { #region INameTransform 成员 public string TransformDirectory(string name) { return null; } public string TransformFile(string name) { return Path.GetFileName(name); } #endregion }