欢迎使用CSDN-markdown编辑器

来源：互联网发布：法院网络拍卖规定编辑：程序博客网时间：2024/06/05 17:24

要使用itext创建pdf首先要去下载到相关支持的jar包，本文使用的itext5.5的版本。

1.产生一个简单的简单的pdf文件

package org.test;import java.io.FileNotFoundException;import java.io.FileOutputStream;import com.itextpdf.text.Document;import com.itextpdf.text.Paragraph;import com.itextpdf.text.pdf.PdfWriter;public class SimpleDemo {    public static void createPdf(){        try {            //创建document 对象            Document document = new Document();            FileOutputStream outst = new FileOutputStream("D:\\123.pdf");            PdfWriter pdfwriter = PdfWriter.getInstance(document, outst);            //打开文档            document.open();            //向文档添加内容            document.add(new Paragraph("Hi!this is my first page"));            //关闭文档            document.close();        } catch (Exception e) {            // TODO Auto-generated catch block            e.printStackTrace();        }    }    public static void main(String[] args) {        createPdf();    }}

2.产生一个复杂一点的PDF文档，并提供下载
jsp页面

<script type="text/javascript">        function upload_pdf(){            location.href="/itextPdf/servlet/UploadPdfServlet?method=upload";        }    </script>  </head>  <body>        <div style="margin: 30px;">            <input type="button" value="导出PDF" onclick="upload_pdf();" id="upload_pdf">        </div>  </body>

servlet控制类

package org.test;import java.io.File;import java.io.FileInputStream;import java.io.IOException;import java.io.OutputStream;import java.net.URLEncoder;import javax.servlet.ServletException;import javax.servlet.http.HttpServlet;import javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpServletResponse;public class UploadPdfServlet extends HttpServlet {    /**     *      */    private static final long serialVersionUID = 1L;    public void doGet(HttpServletRequest request, HttpServletResponse response)            throws ServletException, IOException {        doPost(request,response);    }    public void doPost(HttpServletRequest request, HttpServletResponse response)            throws ServletException, IOException {        String method = request.getParameter("method");        if(method.equals("upload")){            doUpload( request,  response);        }    }    public void doUpload(HttpServletRequest request, HttpServletResponse response){        response.setCharacterEncoding("UTF-8");        response.setContentType("multipart/form-data");        String filename = "导出2015.pdf";        try {            //解决文件名乱码问题            if (request.getHeader("User-Agent").toUpperCase().indexOf("MSIE") > 0) {//IE浏览器                  filename = URLEncoder.encode(filename, "UTF-8");              } else {                  filename = new String(filename.getBytes("UTF-8"), "ISO8859-1");              }              response.setHeader("Content-Disposition", "attachment;fileName="                     + filename);        } catch (Exception e1) {            // TODO Auto-generated catch block            e1.printStackTrace();        }        //产生PDF        CreatePdfTools pdftool = new CreatePdfTools();        pdftool.CreatePdf(request, filename);        try {            String path = request.getSession().getServletContext().getRealPath("/upload/"+filename);            File file = new File(path);            FileInputStream fileIput = new FileInputStream(file);            OutputStream output = response.getOutputStream();            byte[] buf = new byte[1024];            int r = 0;            while((r=fileIput.read(buf,0,buf.length))!=-1){                output.write(buf, 0, r);            }            output.flush();            output.close();        } catch (Exception e) {            // TODO Auto-generated catch block            e.printStackTrace();        }    }}

pdf工具类

package org.test;import java.io.File;import java.io.FileOutputStream;import java.io.IOException;import java.text.SimpleDateFormat;import java.util.Date;import javax.servlet.http.HttpServletRequest;import com.itextpdf.text.BaseColor;import com.itextpdf.text.Chunk;import com.itextpdf.text.Document;import com.itextpdf.text.Element;import com.itextpdf.text.Font;import com.itextpdf.text.FontFactory;import com.itextpdf.text.Image;import com.itextpdf.text.PageSize;import com.itextpdf.text.Paragraph;import com.itextpdf.text.Phrase;import com.itextpdf.text.pdf.BaseFont;import com.itextpdf.text.pdf.ColumnText;import com.itextpdf.text.pdf.PdfContentByte;import com.itextpdf.text.pdf.PdfPCell;import com.itextpdf.text.pdf.PdfPTable;import com.itextpdf.text.pdf.PdfWriter;public class CreatePdfTools{    private final int CELLHIGHT = 30;    public void CreatePdf(HttpServletRequest request,String FileName) {        String Filepath = request.getSession().getServletContext().getRealPath("/upload/"+FileName);        File file = new File(Filepath);        FileOutputStream out = null;        try {            Document document = new Document(PageSize.A4,50,50,50,50);            out = new FileOutputStream(file);            PdfWriter write = PdfWriter.getInstance(document, out);            document.open();            BaseColor color = new BaseColor(0, 0, 0);            Font font = FontFactory.getFont(FontFactory.HELVETICA, 18);            BaseFont bfChinese;            //注意这里需要指定字体文件            String fontPath = request.getSession().getServletContext().getRealPath("/resource/fzt.ttf");            bfChinese = BaseFont.createFont(fontPath,BaseFont.IDENTITY_H,BaseFont.NOT_EMBEDDED);//设置中文字体            //中文大小为20，加粗            font = new Font(bfChinese, 20, Font.BOLD);            Font font1 = new Font(bfChinese,15,Font.NORMAL);            //设置标题            Paragraph title = new Paragraph("xx公司业务审批表",font);            title.setAlignment(Element.ALIGN_CENTER);            title.setSpacingAfter(30f);            document.add(title);            //业务类型            Paragraph businessType = new Paragraph();            // 定义选中时的复选框按钮的路径            String checkboxChecked_path = request.getSession().getServletContext().getRealPath("\\images\\checkedBox.png");            Image  checkboxChecked_image = Image.getInstance(checkboxChecked_path);            checkboxChecked_image.scaleAbsolute(13, 13);            //插入图片,设置图片的位置            Chunk checkboxChecked = new Chunk(checkboxChecked_image,0,-2);            businessType.add(checkboxChecked);            businessType.add(new Chunk("   审批业务1",font1));            // 定义没选中时的复选框按钮的路径            String checkboxNotChecked_path = request.getSession().getServletContext().getRealPath("\\images\\notCheckBox.png");            Image  checkboxNotChecked_image = Image.getInstance(checkboxNotChecked_path);            checkboxNotChecked_image.scaleAbsolute(13, 13);            //插入图片,设置图片的位置            Chunk checkboxNotChecked = new Chunk(checkboxNotChecked_image,0,-2);            businessType.add("   ");            businessType.add(checkboxNotChecked);            businessType.add(new Chunk("   审批业务2",font1));            //设置与下一个元素的间距            businessType.setSpacingAfter(10f);            document.add(businessType);            //创建一个六列的表格            PdfPTable table = new PdfPTable(4);            //设置表格每列的宽度的百分比            int[] cellWidth = {25,25,25,25};            table.setWidths(cellWidth);            //表格宽度            table.setTotalWidth(500);            //锁定宽度            table.setLockedWidth(true);            //设置表格水平居中            table.setHorizontalAlignment(Element.ALIGN_CENTER);            //水平居中            table.getDefaultCell().setHorizontalAlignment(Element.ALIGN_CENTER);            //垂直居中            table.getDefaultCell().setVerticalAlignment(Element.ALIGN_CENTER);            //设置固表格定高度            table.getDefaultCell().setFixedHeight(CELLHIGHT);            //设置表格边框颜色            table.getDefaultCell().setBackgroundColor(color);            //设置单元格的边距间隔            table.getDefaultCell().setPadding(0);            table.getDefaultCell().setBorderWidth(0);            //单元格对象            PdfPCell cell = new PdfPCell();            Paragraph para = new Paragraph("作品名称：",font1);            para.setAlignment(Element.ALIGN_CENTER);            cell = new PdfPCell(para);            //设置cell高度            cell.setMinimumHeight(30f);            //设置内容水平居中            cell.setHorizontalAlignment(Element.ALIGN_CENTER);            //设置内容垂直居中            cell.setVerticalAlignment(Element.ALIGN_MIDDLE);//          cell.setBorder(1);            table.addCell(cell);            para = new Paragraph("PDF Hello World",font1);            para.setAlignment(Element.ALIGN_CENTER);            cell = new PdfPCell(para);            cell.setHorizontalAlignment(Element.ALIGN_CENTER);            cell.setVerticalAlignment(Element.ALIGN_MIDDLE);//          cell.setBorder(1);            table.addCell(cell);            para = new Paragraph("作品类别：",font1);            para.setAlignment(Element.ALIGN_CENTER);            cell = new PdfPCell(para);            cell.setHorizontalAlignment(Element.ALIGN_CENTER);            cell.setVerticalAlignment(Element.ALIGN_MIDDLE);//          cell.setBorder(1);            table.addCell(cell);            para = new Paragraph("类别1",font1);            para.setAlignment(Element.ALIGN_CENTER);            cell = new PdfPCell(para);            cell.setHorizontalAlignment(Element.ALIGN_CENTER);            cell.setVerticalAlignment(Element.ALIGN_MIDDLE);//          cell.setBorder(1);            table.addCell(cell);            para = new Paragraph("作者：",font1);            para.setAlignment(Element.ALIGN_CENTER);            cell = new PdfPCell(para);            cell.setMinimumHeight(30f);            cell.setHorizontalAlignment(Element.ALIGN_CENTER);            cell.setVerticalAlignment(Element.ALIGN_MIDDLE);//          cell.setBorder(1);            table.addCell(cell);            para = new Paragraph("张三",font1);            para.setAlignment(Element.ALIGN_CENTER);            cell = new PdfPCell(para);            cell.setHorizontalAlignment(Element.ALIGN_CENTER);            cell.setVerticalAlignment(Element.ALIGN_MIDDLE);//          cell.setBorder(1);            table.addCell(cell);            para = new Paragraph("著作权人：",font1);            para.setAlignment(Element.ALIGN_CENTER);            cell = new PdfPCell(para);            cell.setHorizontalAlignment(Element.ALIGN_CENTER);            cell.setVerticalAlignment(Element.ALIGN_MIDDLE);//          cell.setBorder(1);            table.addCell(cell);            para = new Paragraph("张三",font1);            para.setAlignment(Element.ALIGN_CENTER);            cell = new PdfPCell(para);            cell.setHorizontalAlignment(Element.ALIGN_CENTER);            cell.setVerticalAlignment(Element.ALIGN_MIDDLE);//          cell.setBorder(1);            table.addCell(cell);            Paragraph para2 = new Paragraph("受理意见",font1);            //设置字体居中            PdfPCell cell2 = new PdfPCell(para2);            //设置cell的高度            cell2.setMinimumHeight(100);            //水平居中            cell2.setHorizontalAlignment(Element.ALIGN_CENTER);            //垂直居中            cell2.setVerticalAlignment(Element.ALIGN_MIDDLE);            table.addCell(cell2);            Paragraph para3 = new Paragraph("同意受理，请上级领导审批。",font1);            SimpleDateFormat format = new SimpleDateFormat("yyyy 年 MM 月 dd 日");            String date = format.format(new Date());            Paragraph para4 = new Paragraph("受理人：                         "+date,font1);            //设置与上一个元素的间距            para4.setSpacingBefore(30f);            //设置首行缩进            para4.setFirstLineIndent(50f);            PdfPCell cell3 = new PdfPCell();            cell3.addElement(para3);            cell3.addElement(para4);            cell3.setColspan(3);            table.addCell(cell3);            //审批            Paragraph sp_para1 = new Paragraph("审批意见",font1);            //设置字体居中            PdfPCell sp_cell1 = new PdfPCell(sp_para1);            //设置cell的高度            sp_cell1.setMinimumHeight(100);            //水平居中            sp_cell1.setHorizontalAlignment(Element.ALIGN_CENTER);            //垂直居中            sp_cell1.setVerticalAlignment(Element.ALIGN_MIDDLE);            table.addCell(sp_cell1);            Paragraph sp_para2 = new Paragraph("审批通过。",font1);            Paragraph sp_para3 = new Paragraph("受理人：                         "+date,font1);            //设置与上一个元素的间距            sp_para3.setSpacingBefore(30f);            //设置首行缩进            sp_para3.setFirstLineIndent(50f);            PdfPCell sp_cell2 = new PdfPCell();            sp_cell2.addElement(sp_para2);            sp_cell2.addElement(sp_para3);            sp_cell2.setColspan(3);            table.addCell(sp_cell2);            //文档左右文字(上)            PdfContentByte canvas = write.getDirectContent();            Phrase phrase1 = new Phrase("装|",font1);             Phrase phrase2 = new Phrase("订|",font1);            Phrase phrase3 = new Phrase("处|",font1);            ColumnText.showTextAligned(canvas, Element.ALIGN_LEFT, phrase1, 10, 680, 0);            ColumnText.showTextAligned(canvas, Element.ALIGN_LEFT, phrase2, 10, 665, 0);            ColumnText.showTextAligned(canvas, Element.ALIGN_LEFT, phrase3, 10, 650, 0);            ColumnText.showTextAligned(canvas, Element.ALIGN_LEFT, phrase1, 10, 480, 0);            ColumnText.showTextAligned(canvas, Element.ALIGN_LEFT, phrase2, 10, 465, 0);            ColumnText.showTextAligned(canvas, Element.ALIGN_LEFT, phrase3, 10, 450, 0);            //页脚信息            Phrase phrase4 = new Phrase("xxx信息有限公司（印）",font1);             ColumnText.showTextAligned(canvas, Element.ALIGN_RIGHT, phrase4, document.right(), document.bottom() - 20, 0);            document.add(table);            document.close();        } catch (Exception e) {            // TODO Auto-generated catch block            e.printStackTrace();        }finally{            if(out !=null){                try {                    out.close();                } catch (IOException e) {                    // TODO Auto-generated catch block                    e.printStackTrace();                }            }        }    }    public static void main(String[] args) {        CreatePdfTools pdftool = new CreatePdfTools();//      pdftool.CreatePdf();    }}

这里是项目下载地址http://pan.baidu.com/s/1hqCfxQW

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