Java Servlet PDF文件生成

来源：互联网发布：2k17乔丹捏脸详细数据编辑：程序博客网时间：2024/04/29 20:14

public class PdfServlet extends HttpServlet {

public CertServlet() {
   }

   public void init(ServletConfig config) throws ServletException {

   }

   public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {

HashMap<String, String> outpdf = new HashMap<String, String>(); //用来存储pdf相关文字信息

outpdf.put("imgpath", imgpath);

outpdf.put("note", note);

......

outPDF(response, imgpath, outpdf);

}

public void outPDF(HttpServletResponse response, String imgpath, HashMap<String, String> outpdf,) {
       response.setContentType("application/pdf");
       if (isDownload == true) {
           response.setHeader("Content-disposition", "attachment; filename=" + "certificate.pdf");
       }
       try {
           CertPDF pdf = new CertPDF(wizbini);
           OutputStream os = response.getOutputStream();
           pdf.CertTemplate(os, response, imgpath, outpdf, isDownload, isShowNo);
           os.flush();
           os.close();
       } catch (Exception e) {
           e.printStackTrace();
       }
   }

}

package com.cw.wizbank.cert;

import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
import java.io.OutputStream;
import java.util.HashMap;

import javax.imageio.ImageIO;
import javax.servlet.http.HttpServletResponse;

import Word.Style;

import com.cw.wizbank.config.WizbiniLoader;
import com.cw.wizbank.util.cwUtils;
import com.lowagie.text.Document;
import com.lowagie.text.DocumentException;
import com.lowagie.text.Element;
import com.lowagie.text.Font;
import com.lowagie.text.Image;
import com.lowagie.text.PageSize;
import com.lowagie.text.Paragraph;
import com.lowagie.text.Rectangle;
import com.lowagie.text.pdf.BaseFont;
import com.lowagie.text.pdf.PdfWriter;

public class CertPDF {
   private WizbiniLoader wizbini = null;

   public CertPDF(WizbiniLoader wizbini) {
       this.wizbini = wizbini;
   }

   public void CertTemplate(OutputStream os, HttpServletResponse response, String bg_url,
           HashMap<String, String> outpdf, boolean isDownload, boolean isShowNo) throws DocumentException,
           IOException {
       try {
           int width = 900;
           int height = 650;
           File file = new File(bg_url);
           if (file.exists()) {
               BufferedImage Bi = ImageIO.read(file);
               width = Bi.getWidth();
               height = Bi.getHeight();
           }
           Rectangle pSize = new Rectangle(width, height);   //A4纸张大小 595 842
           Document doc = new Document(pSize, 0, 0, 0, 0);
           PdfWriter.getInstance(doc, os);
           String font = this.wizbini.getWebInfRoot() + cwUtils.SLASH + "fonts" + cwUtils.SLASH
                   + "SURSONG.TTF";
           BaseFont bfChinese = BaseFont.createFont(font, BaseFont.IDENTITY_H, BaseFont.EMBEDDED);
           Font Fontcerttitle = new Font(bfChinese, 35, Font.BOLD);//
           Font FontChinese = new Font(bfChinese, 28, Font.BOLD);//
           Font font_state = new Font(bfChinese, 22, Font.ITALIC);// 状态栏(小字体风格)
           Font font_date = new Font(bfChinese, 22, Font.BOLD);// 日期栏
           Font font_core = new Font(bfChinese, 18, Font.BOLD);//
           Font font_content = new Font(bfChinese, 22, Font.BOLD);
           font_content.setStyle(Style.clsid);
           doc.open();
           Image image = Image.getInstance(bg_url);
           image.setAlignment(Image.UNDERLYING);

           // image.scalePercent(65);
           doc.add(image);
           // 证书编号
           Paragraph context1 = null;
           // 证书名称
           Paragraph context2 = null;


               // 证书编号
               context1 = new Paragraph(outpdf.get("certcore"), font_core);
               // 证书名称
               context2 = new Paragraph(outpdf.get("certtitle"), Fontcerttitle);


           // 证书编号
           if(isShowNo){
               context1.setSpacingBefore(120); // 离上一段落空的行数
               context1.setAlignment(Element.ALIGN_RIGHT);
               context1.setIndentationRight(70); // 距离右边的距离
               doc.add(context1);
           }

           // 证书名称
           context2.setAlignment(Element.ALIGN_CENTER);
           context2.setSpacingBefore(40); // 离上一段落空的行数
           context2.setIndentationLeft(70);
           context2.setIndentationRight(70);
           doc.add(context2);



           // 内容
           String note = outpdf.get("note");
           Paragraph contextnote = new Paragraph(note.substring(0, note.length()), font_content);
           contextnote.setSpacingBefore(25);       //上边空白距离     padding-top
           contextnote.setFirstLineIndent(50);       //首行缩进       text-indent
           contextnote.setIndentationLeft(60);       //左边空白距离    padding-left
           contextnote.setIndentationRight(60);   //右边空白距离   padding-right
           doc.add(contextnote);

           doc.close();

       } catch (Exception e) {
           e.printStackTrace();
       }
   }
}

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