检测是否有数据，如果有数据直接在方法中调用获取证书PDF的方法“CertInfoPdf”
/// <summary> /// 检测是否有证书 /// </summary> /// <param name="personalId"></param> /// <param name="name"></param> /// <param name="code"></param> /// <returns></returns> public ActionResult CheckHasCert(string personalId, string name, string code) { HttpCookie cookie = Request.Cookies["ValidateCode"]; if (cookie != null) { if (cookie.Value != code) { return Json(new { success = false, msg = "验证码错误!" }); } } else { return Json(new { success = false, msg = "验证码错误!" }); } if (string.IsNullOrWhiteSpace(personalId)) { return Json(new { success = false, msg = "数据错误" }); } var certInfo = JobClient.GetCert(new JobCertSearch { PersonalId = personalId, Name = name }); if (certInfo == null || certInfo.JobCert == null) { return Json(new { success = false, msg = "暂无证书" }); } if (certInfo.FaceImage == null) { return Json(new { success = false, msg = "请先完善头像信息" }); } var certVm = certInfo.JobCert;return CertInfoPdf(personalId, EncodeBase64(Encoding.UTF8, name)); }
由于模板中有二维码，扫码二维码也要展示相同的页面，但是参数是中文时有问题，所以中文参数进行了下编码，要扫码看数据，就需要把方法的权限放开，不能进行验证“[CheckLogin(false)]”
[CheckLogin(false)] public ActionResult CertInfoPdf(string personalId,string name,int type = 1) { try {
if (string.IsNullOrWhiteSpace(personalId))
{
return Json(new { success = false, msg = "数据错误" },JsonRequestBehavior.AllowGet);
}
var certInfo = JobClient.GetCert(new JobCertSearch { PersonalId = personalId, Name = name });
if (certInfo == null || certInfo.JobCert == null)
{
return Json(new { success = false, msg = "暂无证书" }, JsonRequestBehavior.AllowGet);
}
if (certInfo.FaceImage == null)
{
return Json(new { success = false, msg = "请先完善头像信息" }, JsonRequestBehavior.AllowGet);
}
var certVm = certInfo.JobCert;
name = DecodeBase64(Encoding.UTF8, name); name = name.IndexOf(‘\‘‘) != -1 ? name.Substring(name.IndexOf(‘\‘‘) + 1, name.Length - 2) : name; Asp.Document doc; using (var stream = System.IO.File.OpenRead(Server.MapPath("/Content/Templates/证书模板.docx"))) { doc = new Asp.Document(stream); } //先生成二维码照片" GetQrCode(ConfigHelper.WwwDomain + "Login/CertInfoPdf?name=" + EncodeBase64(Encoding.UTF8, name) + "&personalId=" + personalId+"&type=0", certVm.CertNumber); var qrCodeImgPath = Request.MapPath(currentPath) + "/" + certVm.CertNumber + ".png"; var dicReplaceValues = new Dictionary<string, string>(); dicReplaceValues.Add("Name", certVm.Name); dicReplaceValues.Add("PersonalId", certVm.PersonalId); dicReplaceValues.Add("CertNum", certVm.CertNumber); dicReplaceValues.Add("PhotoUrl", certInfo.FaceImage.ImageUrl); dicReplaceValues.Add("ErWeiMa", qrCodeImgPath); Asp.DocumentBuilder builder = new Asp.DocumentBuilder(doc); foreach (var key in dicReplaceValues.Keys) { if (key == "PhotoUrl") { //插入图片 builder.InsertImage(dicReplaceValues[key], Asp.Drawing.RelativeHorizontalPosition.LeftMargin, 88, Asp.Drawing.RelativeVerticalPosition.TopMargin, 172, 95, 120, Asp.Drawing.WrapType.None);//147表 } else if (key == "ErWeiMa") { //插入图片 builder.InsertImage(dicReplaceValues[key], Asp.Drawing.RelativeHorizontalPosition.LeftMargin, 82, Asp.Drawing.RelativeVerticalPosition.TopMargin, 545, 70, 70, Asp.Drawing.WrapType.None);//147表 } else { var repStr = string.Format("${0}$", key); doc.Range.Replace(repStr, dicReplaceValues[key], false, false); } } MemoryStream ms = new MemoryStream(); doc.Save(ms, Aspose.Words.SaveFormat.Pdf); ms.Position = 0; //删除二维码 if (System.IO.File.Exists(qrCodeImgPath)) { System.IO.File.Delete(qrCodeImgPath); } //下载 if (type == 0) { return File(ms, "application/pdf", "证书" + "-" + new Random().Next(1000, 9999) + ".pdf"); } else//预览 { var path = "/Files/PDF/CertPdf/" + SecurityHelper.Encrypt(areaInfo.Name, ConfigHelper.EncryptKey) + "/" + SecurityHelper.Encrypt(department.DepartmentName, ConfigHelper.EncryptKey) + "/"; var pathDir = Server.MapPath(path); var fileName = SecurityHelper.Encrypt(certVm.PersonalId, ConfigHelper.EncryptKey) + "(证书).pdf"; var newPdf = Server.MapPath(path + fileName); //如果文件已存在，删除 if (System.IO.File.Exists(newPdf)) { System.IO.File.Delete(newPdf); } //文件不存在时 if (!System.IO.File.Exists(newPdf)) { //文件夹不存在时创建文件夹 if (!System.IO.Directory.Exists(pathDir)) { Directory.CreateDirectory(pathDir); } //创建PDF文件 var sr = new FileStream(newPdf, FileMode.Create); sr.Write(ms.GetBuffer(), 0, (int)ms.Length); sr.Close(); sr.Dispose(); } string base64String = ""; using (FileStream fs = new FileStream(pathDir + fileName, FileMode.Open)) { long fileSize = fs.Length; byte[] buffer = new byte[(int)fileSize]; fs.Read(buffer, 0, (int)fs.Length); base64String = Convert.ToBase64String(buffer); } //生成base64后删除原文件 if (System.IO.File.Exists(newPdf)) { System.IO.File.Delete(newPdf); } return Json(new { success = true, pdfBase64String = "data:application/pdf;base64," + base64String }, JsonRequestBehavior.AllowGet); } } catch (Exception e) { return Json(new { success = false, msg = e.Message }, JsonRequestBehavior.AllowGet); } }
加密解密方法
/// <summary> /// base64解密 /// </summary> /// <param name="encode">编码，与js一致</param> /// <param name="result">加密源字符串</param> /// <returns></returns> public static string DecodeBase64(Encoding encode, string result) { string decode = ""; byte[] bytes = Convert.FromBase64String(result); try { decode = encode.GetString(bytes); } catch { decode = result; } return decode; } /// <summary> /// base64加密 /// </summary> /// <param name="encode">编码，与js一致</param> /// <param name="source">加密源字符串</param> /// <returns></returns> public static string EncodeBase64(Encoding encode, string source) { string decode = ""; byte[] bytes = encode.GetBytes(source); try { decode = Convert.ToBase64String(bytes); } catch { decode = source; } return decode; }
生成二维码
public readonly string currentPath = @"/Content/QrCodeImg";
public void GetQrCode(string url, string certNumber) { QRCodeEncoder qrCodeEncoder = new QRCodeEncoder(); System.IO.MemoryStream ms = new System.IO.MemoryStream(); System.Drawing.Bitmap myimg = qrCodeEncoder.Encode(url, System.Text.Encoding.UTF8); //kedee 增加utf-8编码，可支持中文汉字 SaveImg(currentPath, myimg, certNumber); ms.Dispose(); ms.Close(); }
前台接收处理，接收到的字符串赋值到iframe的src上，由于我用的layui，弹出层可以根据type决定类型，type值为2就是iframe弹出层，所以直接就赋值给弹出层了
//证书查询 function SearchInfo() { var personalId = $.trim($("#personalId").val()); var name = $.trim($("#name").val()); var checkCode = $.trim($("#checkCode").val()); layer.load(1); $.ajax({ url: ‘/Login/CheckHasCert‘, type:‘post‘, data: { ‘code‘: checkCode, ‘name‘: name, ‘personalId‘: personalId }, success: function (data) { ClickRemoveChangeCode(); var item = ""; if (data.success) { if (data.pdfBase64String) { layer.open({ title: "证书", type: 2, area: [‘100%‘, ‘100%‘], content: data.pdfBase64String }); } layer.closeAll(‘loading‘); } else { if (data.msg) { error = data.msg; layer.msg(data.msg, { icon: 5, time: 2000 }); } else { layer.msg(‘暂无数据‘, { icon: 5, time: 2000 }); } layer.closeAll(‘loading‘); } }, error: function () { layer.closeAll(‘loading‘); ClickRemoveChangeCode(); layer.msg("网络错误，请稍后重试", { icon: 5, time: 2000 }); } }); }
原文：https://www.cnblogs.com/xiaonangua/p/13396346.html