今天有個客戶提了個需求，有個較復雜的頁面需要導出為pdf,如果使用現有的生成pdf，再通過企業微信替換通訊錄比較復雜，於是直接調用系統打印功能實現
找到一篇比較簡單的解決方案
https://blog.csdn.net/alokka/article/details/75103322
1、添加js代碼
<script language="javascript"> function preview(oper) { if (oper < 10){ bdhtml=window.document.body.innerHTML;//獲取當前頁的html代碼 sprnstr="<!--startprint"+oper+"-->";//設置打印開始區域 eprnstr="<!--endprint"+oper+"-->";//設置打印結束區域 prnhtml=bdhtml.substring(bdhtml.indexOf(sprnstr)+18); //從開始代碼向后取html prnhtml=prnhtml.substring(0,prnhtml.indexOf(eprnstr));//從結束代碼向前取html window.document.body.innerHTML=prnhtml; window.print(); window.document.body.innerHTML=bdhtml; } else { window.print(); } } </script>
2、需要打印的部分，使用如下代碼包裹，多個打印區域可以設置多個startprint2...
<!--startprint1--> <!--打印內容開始--> <div id=sty> ... </div> <!--打印內容結束--> <!--endprint1-->
3、打印
<a onclick="preview(1);"style="float:right;position:relative">打印</a>
4、效果
5、如果使用輸出PDF方式，可以是使用PDFHelper
using System.IO; using iTextSharp.text; using iTextSharp.text.pdf; namespace Utilities { /// <summary> /// PDF文檔操作類 /// </summary> //------------------------------------調用-------------------------------------------- //PDFHelper pdf = new PDFHelper(); //pdf.Open(new FileStream(path, FileMode.Create)); //pdf.SetBaseFont(@"C:\Windows\Fonts\SIMHEI.TTF"); //pdf.AddParagraph("測試文檔（生成時間：" + DateTime.Now + "）", 15, 1, 20, 0, 0); //pdf.Close(); //------------------------------------------------------------------------------------- public class PDFHelper { #region 構造函數 /// <summary> /// 構造函數 /// </summary> public PDFHelper() { rect = PageSize.A4; document = new Document(rect); } /// <summary> /// 構造函數 /// </summary> /// <param name="type">頁面大小(如"A4")</param> public PDFHelper(string type) { SetPageSize(type); document = new Document(rect); } /// <summary> /// 構造函數 /// </summary> /// <param name="type">頁面大小(如"A4")</param> /// <param name="marginLeft">內容距左邊框距離</param> /// <param name="marginRight">內容距右邊框距離</param> /// <param name="marginTop">內容距上邊框距離</param> /// <param name="marginBottom">內容距下邊框距離</param> public PDFHelper(string type, float marginLeft, float marginRight, float marginTop, float marginBottom) { SetPageSize(type); document = new Document(rect, marginLeft, marginRight, marginTop, marginBottom); } #endregion #region 私有字段 private Font font; private Rectangle rect; //文檔大小 private Document document;//文檔對象 private BaseFont basefont;//字體 #endregion #region 設置字體 /// <summary> /// 設置字體 /// </summary> public void SetBaseFont(string path) { basefont = BaseFont.CreateFont(path, BaseFont.IDENTITY_H, BaseFont.NOT_EMBEDDED); } /// <summary> /// 設置字體 /// </summary> /// <param name="size">字體大小</param> public void SetFont(float size) { font = new Font(basefont, size); } #endregion #region 設置頁面大小 /// <summary> /// 設置頁面大小 /// </summary> /// <param name="type">頁面大小(如"A4")</param> public void SetPageSize(string type) { switch (type.Trim()) { case "A4": rect = PageSize.A4; break; case "A8": rect = PageSize.A8; break; } } #endregion #region 實例化文檔 /// <summary> /// 實例化文檔 /// </summary> /// <param name="os">文檔相關信息（如路徑，打開方式等）</param> public void GetInstance(Stream os) { PdfWriter.GetInstance(document, os); } #endregion #region 打開文檔對象 /// <summary> /// 打開文檔對象 /// </summary> /// <param name="os">文檔相關信息（如路徑，打開方式等）</param> public void Open(Stream os) { GetInstance(os); document.Open(); } #endregion #region 關閉打開的文檔 /// <summary> /// 關閉打開的文檔 /// </summary> public void Close() { document.Close(); } #endregion #region 添加段落 /// <summary> /// 添加段落 /// </summary> /// <param name="content">內容</param> /// <param name="fontsize">字體大小</param> public void AddParagraph(string content, float fontsize) { SetFont(fontsize); Paragraph pra = new Paragraph(content, font); document.Add(pra); } /// <summary> /// 添加段落 /// </summary> /// <param name="content">內容</param> /// <param name="fontsize">字體大小</param> /// <param name="Alignment">對齊方式（1為居中，0為居左，2為居右）</param> /// <param name="SpacingAfter">段后空行數（0為默認值）</param> /// <param name="SpacingBefore">段前空行數（0為默認值）</param> /// <param name="MultipliedLeading">行間距（0為默認值）</param> public void AddParagraph(string content, float fontsize, int Alignment, float SpacingAfter, float SpacingBefore, float MultipliedLeading) { SetFont(fontsize); Paragraph pra = new Paragraph(content, font); pra.Alignment = Alignment; if (SpacingAfter != 0) { pra.SpacingAfter = SpacingAfter; } if (SpacingBefore != 0) { pra.SpacingBefore = SpacingBefore; } if (MultipliedLeading != 0) { pra.MultipliedLeading = MultipliedLeading; } document.Add(pra); } #endregion #region 添加圖片 /// <summary> /// 添加圖片 /// </summary> /// <param name="path">圖片路徑</param> /// <param name="Alignment">對齊方式（1為居中，0為居左，2為居右）</param> /// <param name="newWidth">圖片寬（0為默認值，如果寬度大於頁寬將按比率縮放）</param> /// <param name="newHeight">圖片高</param> public void AddImage(string path, int Alignment, float newWidth, float newHeight) { Image img = Image.GetInstance(path); img.Alignment = Alignment; if (newWidth != 0) { img.ScaleAbsolute(newWidth, newHeight); } else { if (img.Width > PageSize.A4.Width) { img.ScaleAbsolute(rect.Width, img.Width * img.Height / rect.Height); } } document.Add(img); } #endregion #region 添加鏈接、點 /// <summary> /// 添加鏈接 /// </summary> /// <param name="Content">鏈接文字</param> /// <param name="FontSize">字體大小</param> /// <param name="Reference">鏈接地址</param> public void AddAnchorReference(string Content, float FontSize, string Reference) { SetFont(FontSize); Anchor auc = new Anchor(Content, font); auc.Reference = Reference; document.Add(auc); } /// <summary> /// 添加鏈接點 /// </summary> /// <param name="Content">鏈接文字</param> /// <param name="FontSize">字體大小</param> /// <param name="Name">鏈接點名</param> public void AddAnchorName(string Content, float FontSize, string Name) { SetFont(FontSize); Anchor auc = new Anchor(Content, font); auc.Name = Name; document.Add(auc); } #endregion } }