Java iText操作PDF文档

 iLife's 博客http://blog.csdn.net/fei1502816 

1.Action

1. //在线打印PDF  
2. String path = servlet.getServletContext().getRealPath("");  //得到项目根目录  
3. CreatePdf checkPdf = new CreatePdf();  
4. String filepath = checkPdf.printImportAndPtExpert(path,"expertBase",importList,putongtList);  
5. request.setAttribute("filepath", path+File.separator+"community"+File.separator+"pdfile"+File.separator+filepath);  
6. return mapping.findForward("downLoad");  

 

2.公用类CreatPDF

1. import java.io.File;  
2. import java.io.FileOutputStream;  
3. import java.util.List;  
4.   
5. import com.lowagie.text.Cell;  
6. import com.lowagie.text.Document;  
7. import com.lowagie.text.DocumentException;  
8. import com.lowagie.text.Element;  
9. import com.lowagie.text.Font;  
10. import com.lowagie.text.FontFactory;  
11. import com.lowagie.text.HeaderFooter;  
12. import com.lowagie.text.Image;  
13. import com.lowagie.text.PageSize;  
14. import com.lowagie.text.Paragraph;  
15. import com.lowagie.text.Phrase;  
16. import com.lowagie.text.Rectangle;  
17. import com.lowagie.text.Table;  
18. import com.lowagie.text.Watermark;  
19. import com.lowagie.text.pdf.BaseFont;  
20. import com.lowagie.text.pdf.PdfPageEventHelper;  
21. import com.lowagie.text.pdf.PdfWriter;  
22.   
23. public class CopyOfCreatePdf extends PdfPageEventHelper {  
24.   
25.     /** 
26.      * 打印专家评审基地（重点基地和普通基地） 
27.      *  
28.      * @param path 
29.      *            获得项目根目录 String path = 
30.      *            servlet.getServletContext().getRealPath(""); 
31.      * @param filename 
32.      *            文件名 
33.      * @param importList 
34.      *            重点基地集合 
35.      * @param putongList 
36.      *            普通基地集合 
37.      * @return 
38.      * @throws Exception 
39.      */  
40.     @SuppressWarnings("unchecked")  
41.     public String printImportAndPtExpert(String path, String filename,  
42.             List importList, List putongList) throws Exception {  
43.         // 创建报表大小，不能够指定页边距。  
44.         // Document document = new Document(PageSize.A4, 85, 71, 72, 72);  
45.         Document document = new Document(PageSize.A4, 30, 30, 72, 72);  
46.         try {  
47.             BaseFont bfFS = BaseFont.createFont(path + File.separator  
48.                     + "WEB-INF" + File.separator + "classes" + File.separator  
49.                     + "fonts" + File.separator + "SIMFANG.TTF",  
50.                     BaseFont.IDENTITY_H, BaseFont.NOT_EMBEDDED);  
51.             // 华文细黑  
52.             BaseFont bfHWXH = BaseFont.createFont(path + File.separator  
53.                     + "WEB-INF" + File.separator + "classes" + File.separator  
54.                     + "fonts" + File.separator + "STXIHEI.TTF",  
55.                     BaseFont.IDENTITY_H, BaseFont.NOT_EMBEDDED);  
56.             // 黑体  
57.             BaseFont bfHT = BaseFont.createFont(path + File.separator  
58.                     + "WEB-INF" + File.separator + "classes" + File.separator  
59.                     + "fonts" + File.separator + "SIMHEI.TTF",  
60.                     BaseFont.IDENTITY_H, BaseFont.NOT_EMBEDDED);  
61.   
62.             Font htFontB = new Font(bfHT, 14, Font.BOLD);  
63.   
64.             PdfWriter writer = PdfWriter.getInstance(document,  
65.                     new FileOutputStream(path + File.separator + "community"  
66.                             + File.separator + "pdfile" + File.separator  
67.                             + filename + ".pdf"));  
68.   
69.             // 插入水印  
70.             if (new File(path + File.separator + "image006.gif") != null) {  
71.                 Watermark watermark = new Watermark(Image.getInstance(path  
72.                         + File.separator + "image006.gif"), 0f, 0f);  
73.                 document.add(watermark);  
74.             } else {  
75.                 System.out.println("添加水印失败");  
76.             }  
77.             com.lowagie.text.Font ST3 = FontFactory.getFont("STSong-Light",  
78.                     "UniGB-UCS2-H");  
79.             ST3.setSize(10f);  
80.             HeaderFooter footer = new HeaderFooter(new Phrase("第", ST3),  
81.                     new Phrase("页", ST3));  
82.             footer.setBorder(Rectangle.NO_BORDER);  
83.             footer.setAlignment(Element.ALIGN_CENTER);  
84.             document.setFooter(footer);  
85.             // 加密  
86.             writer.setEncryption(PdfWriter.STRENGTH128BITS, null,  
87.                     "hujichen0928", PdfWriter.AllowPrinting  
88.                             | PdfWriter.AllowCopy);  
89.             // 添加元信息  
90.   
91.             document.addAuthor("北京科学技术委员会");  
92.             document.addSubject("评审基地项目列表");  
93.             document.open();  
94.   
95.             com.lowagie.text.Font ST = FontFactory.getFont("STSong-Light",  
96.                     "UniGB-UCS2-H");  
97.             com.lowagie.text.Font ST22 = FontFactory.getFont("STSong-Light",  
98.                     "UniGB-UCS2-H");  
99.   
100.             BaseFont baseFont2 = ST22.getBaseFont();  
101.             Font ST2 = new Font(baseFont2, 14, Font.BOLD);  
102.             com.lowagie.text.Font cnFont = new Font(bfHWXH);  
103.             ST.setSize(10);  
104.             ST2.setSize(12);  
105.   
106.             Table proinfoTab = new Table(8);  
107.             proinfoTab.setWidth(100.0f);  
108.             float[] twidth = { 6f, 8f, 14f, 14f, 14f, 6f, 6f, 28f };  
109.             proinfoTab.setWidths(twidth);  
110.             proinfoTab.setCellspacing(4);  
111.             // 设置表框属性  
112.             Cell proinfoCell = new Cell(new Paragraph("2011年北京市第五批基地申报专家评审表",  
113.                     ST2));  
114.             proinfoCell.setUseAscender(true);  
115.             proinfoCell.setHorizontalAlignment(Cell.ALIGN_CENTER);  
116.             proinfoCell.setVerticalAlignment(Cell.ALIGN_MIDDLE);  
117.             proinfoCell.setColspan(8);  
118.             proinfoTab.addCell(proinfoCell);  
119.   
120.             proinfoCell = new Cell(new Paragraph("重点评审项目", ST2));  
121.             proinfoCell.setUseAscender(true);  
122.             proinfoCell.setVerticalAlignment(Cell.ALIGN_MIDDLE);  
123.             proinfoCell.setHorizontalAlignment(Cell.ALIGN_CENTER);  
124.             proinfoCell.setColspan(8);  
125.             proinfoTab.addCell(proinfoCell);  
126.   
127.             proinfoCell = new Cell(new Paragraph("序号", ST2));  
128.             proinfoCell.setUseAscender(true);  
129.             proinfoCell.setVerticalAlignment(Cell.ALIGN_MIDDLE);  
130.             proinfoCell.setHorizontalAlignment(Cell.ALIGN_CENTER);  
131.             proinfoTab.addCell(proinfoCell);  
132.   
133.             proinfoCell = new Cell(new Paragraph("区县", ST2));  
134.             proinfoCell.setUseAscender(true);  
135.             proinfoCell.setVerticalAlignment(Cell.ALIGN_MIDDLE);  
136.             proinfoCell.setHorizontalAlignment(Cell.ALIGN_CENTER);  
137.             proinfoTab.addCell(proinfoCell);  
138.   
139.             proinfoCell = new Cell(new Paragraph("基地名称", ST2));  
140.             proinfoCell.setUseAscender(true);  
141.             proinfoCell.setVerticalAlignment(Cell.ALIGN_MIDDLE);  
142.             proinfoCell.setHorizontalAlignment(Cell.ALIGN_CENTER);  
143.             proinfoTab.addCell(proinfoCell);  
144.   
145.             proinfoCell = new Cell(new Paragraph("单位名称", ST2));  
146.             proinfoCell.setUseAscender(true);  
147.             proinfoCell.setVerticalAlignment(Cell.ALIGN_MIDDLE);  
148.             proinfoCell.setHorizontalAlignment(Cell.ALIGN_CENTER);  
149.             proinfoTab.addCell(proinfoCell);  
150.   
151.             proinfoCell = new Cell(new Paragraph("基地类别", ST2));  
152.             proinfoCell.setUseAscender(true);  
153.             proinfoCell.setVerticalAlignment(Cell.ALIGN_MIDDLE);  
154.             proinfoCell.setHorizontalAlignment(Cell.ALIGN_CENTER);  
155.             proinfoTab.addCell(proinfoCell);  
156.   
157.             proinfoCell = new Cell(new Paragraph("分值", ST2));  
158.             proinfoCell.setUseAscender(true);  
159.             proinfoCell.setVerticalAlignment(Cell.ALIGN_MIDDLE);  
160.             proinfoCell.setHorizontalAlignment(Cell.ALIGN_CENTER);  
161.             proinfoTab.addCell(proinfoCell);  
162.   
163.             proinfoCell = new Cell(new Paragraph("等级", ST2));  
164.             proinfoCell.setUseAscender(true);  
165.             proinfoCell.setVerticalAlignment(Cell.ALIGN_MIDDLE);  
166.             proinfoCell.setHorizontalAlignment(Cell.ALIGN_CENTER);  
167.             proinfoTab.addCell(proinfoCell);  
168.   
169.             proinfoCell = new Cell(new Paragraph("专家评语", ST2));  
170.             proinfoCell.setUseAscender(true);  
171.             proinfoCell.setVerticalAlignment(Cell.ALIGN_MIDDLE);  
172.             proinfoCell.setHorizontalAlignment(Cell.ALIGN_CENTER);  
173.             proinfoTab.addCell(proinfoCell);  
174.   
175.             if (importList.size() > 0 && importList != null) {  
176.                 for (int i = 0; i < importList.size(); i++) {  
177.   
178.                     BBasePoint bbp = (BBasePoint) importList.get(i);  
179.                     BBaseDocument doc = bbp.getBBaseDocument();  
180.   
181.                     // 序号  
182.                     proinfoCell = new Cell(new Paragraph(String.valueOf(i + 1),  
183.                             ST));  
184.                     proinfoCell.setUseAscender(true);  
185.                     proinfoCell.setVerticalAlignment(Cell.ALIGN_MIDDLE);  
186.                     proinfoCell.setHorizontalAlignment(Cell.ALIGN_CENTER);  
187.                     proinfoTab.addCell(proinfoCell);  
188.   
189.                     // 区县  
190.                     if (doc.getDocCorpSection() == null) {  
191.                         proinfoCell = new Cell(new Paragraph("无", ST));  
192.                     } else {  
193.                         proinfoCell = new Cell(new Paragraph(doc  
194.                                 .getDocCorpSection(), ST));  
195.                     }  
196.                     proinfoCell.setUseAscender(true);  
197.                     proinfoCell.setVerticalAlignment(Cell.ALIGN_MIDDLE);  
198.                     proinfoCell.setHorizontalAlignment(Cell.ALIGN_CENTER);  
199.                     proinfoTab.addCell(proinfoCell);  
200.   
201.                     // 基地名称  
202.                     if (doc.getBaseName() == null) {  
203.                         proinfoCell = new Cell(new Paragraph("无", ST));  
204.                     } else {  
205.                         proinfoCell = new Cell(new Paragraph(doc.getBaseName(),  
206.                                 ST));  
207.                     }  
208.                     proinfoCell.setUseAscender(true);  
209.                     proinfoCell.setVerticalAlignment(Cell.ALIGN_MIDDLE);  
210.                     proinfoCell.setHorizontalAlignment(Cell.ALIGN_CENTER);  
211.                     proinfoTab.addCell(proinfoCell);  
212.   
213.                     // 单位名称  
214.                     if (doc.getDocCorpName() == null) {  
215.                         proinfoCell = new Cell(new Paragraph("无", ST));  
216.                     } else {  
217.                         proinfoCell = new Cell(new Paragraph(doc  
218.                                 .getDocCorpName(), ST));  
219.                     }  
220.                     proinfoCell.setUseAscender(true);  
221.                     proinfoCell.setVerticalAlignment(Cell.ALIGN_MIDDLE);  
222.                     proinfoCell.setHorizontalAlignment(Cell.ALIGN_CENTER);  
223.                     proinfoTab.addCell(proinfoCell);  
224.   
225.                     // 基地类型  
226.                     if (doc.getDocCorpKind().equals("0")) {  
227.                         proinfoCell = new Cell(new Paragraph("科普教育基地", ST));  
228.                     } else if (doc.getDocCorpKind().equals("1")) {  
229.                         proinfoCell = new Cell(new Paragraph("科普培训基地", ST));  
230.                     } else if (doc.getDocCorpKind().equals("2")) {  
231.                         proinfoCell = new Cell(new Paragraph("科普传媒基地", ST));  
232.                     } else if (doc.getDocCorpKind().equals("3")) {  
233.                         proinfoCell = new Cell(new Paragraph("科普研发基地", ST));  
234.                     } else {  
235.                         proinfoCell = new Cell(new Paragraph("无基地类型", ST));  
236.                     }  
237.                     proinfoCell.setUseAscender(true);  
238.                     proinfoCell.setVerticalAlignment(Cell.ALIGN_MIDDLE);  
239.                     proinfoCell.setHorizontalAlignment(Cell.ALIGN_CENTER);  
240.                     proinfoTab.addCell(proinfoCell);  
241.   
242.                     // 基地评分  
243.                     if (bbp.getZongpoint() == null) {  
244.                         proinfoCell = new Cell(new Paragraph("0", ST));  
245.                     } else {  
246.                         proinfoCell = new Cell(new Paragraph(String  
247.                                 .valueOf(Math.round(bbp.getZongpoint())), ST)); // 基地分数  
248.                     }  
249.                     proinfoCell.setUseAscender(true);  
250.                     proinfoCell.setVerticalAlignment(Cell.ALIGN_MIDDLE);  
251.                     proinfoCell.setHorizontalAlignment(Cell.ALIGN_CENTER);  
252.                     proinfoTab.addCell(proinfoCell);  
253.   
254.                     // 分数等级  
255.                     if (bbp.getGrade() == null) {  
256.                         proinfoCell = new Cell(new Paragraph("无", ST));  
257.                     } else {  
258.                         proinfoCell = new Cell(  
259.                                 new Paragraph(bbp.getGrade(), ST));  
260.                     }  
261.                     proinfoCell.setUseAscender(true);  
262.                     proinfoCell.setVerticalAlignment(Cell.ALIGN_MIDDLE);  
263.                     proinfoCell.setHorizontalAlignment(Cell.ALIGN_CENTER);  
264.                     proinfoTab.addCell(proinfoCell);  
265.   
266.                     // 专家评语  
267.                     String opinion = bbp.getOpinion();  
268.                     if (opinion != null) {  
269.                         opinion = opinion.replaceAll("<p>", "\r\n");  
270.                         opinion = opinion.replaceAll("</p>", "\r\n");  
271.                         opinion = opinion.replaceAll(" ", " ");  
272.                     } else {  
273.                         opinion = "无";  
274.                     }  
275.                     proinfoCell = new Cell(new Paragraph(opinion, ST));  
276.                     proinfoCell.setUseAscender(true);  
277.                     proinfoCell.setVerticalAlignment(Cell.LEFT);  
278.                     proinfoCell.setHorizontalAlignment(Cell.LEFT);  
279.                     proinfoTab.addCell(proinfoCell);  
280.                 }  
281.             }  
282.   
283.             proinfoCell = new Cell(  
284.                     new Paragraph(  
285.                             "专 家 签 字：\n\n"  
286.                                     + "                                                                                                                                           年      月     日\n",  
287.                             ST));  
288.             proinfoCell.setUseAscender(true);  
289.             proinfoCell.setVerticalAlignment(Cell.ALIGN_MIDDLE);  
290.             proinfoCell.setHorizontalAlignment(Cell.ALIGN_LEFT);  
291.             proinfoCell.setColspan(8);  
292.             proinfoTab.addCell(proinfoCell);  
293.   
294.             document.add(proinfoTab);  
295.         } catch (DocumentException de) {  
296.             System.err.println(de.getMessage());  
297.             de.printStackTrace();  
298.         }  
299.         document.close();  
300.         return filename + ".pdf";  
301.     }  
302. }  

3.downLoad.jsp

1. <%@ page contentType="text/html;charset=UTF-8" import="com.jspsmart.upload.*" %>  
2. <%  
3.   Object obj = request.getAttribute("filepath");  
4.   String filepath = "";  
5.   if(obj != null){  
6.       filepath = (String)obj;  
7.   }else{  
8.       filepath = request.getParameter("filepath");  
9.   }  
10.   System.out.println("**********"+filepath);  
11.   //filepath = filepath.replaceAll("/","\\");  
12.   // 新建一个SmartUpload对象  
13.   SmartUpload su = new SmartUpload();  
14.   // 初始化  
15.   su.initialize(pageContext);  
16.   su.setContentDisposition(null);  
17.   // 下载文件  
18.   su.downloadFile(filepath);  
19.   out.clear();  
20. %>  

下面的是在网上看到的一个例子，与大家分享

1. package com.thuram.test;  
2.   
3. import java.awt.Color;  
4. import java.io.FileOutputStream;  
5.   
6. import com.lowagie.text.Cell;  
7. import com.lowagie.text.Chapter;  
8. import com.lowagie.text.Document;  
9. import com.lowagie.text.Font;  
10. import com.lowagie.text.FontFactory;  
11. import com.lowagie.text.List;  
12. import com.lowagie.text.ListItem;  
13. import com.lowagie.text.PageSize;  
14. import com.lowagie.text.Paragraph;  
15. import com.lowagie.text.Section;  
16. import com.lowagie.text.Table;  
17. import com.lowagie.text.pdf.PdfWriter;  
18.   
19. public class ITextTest ...{  
20.     public static void main(String[] args) ...{  
21.         try ...{  
22.             /** *//** 
23.              * 首先，创建一个document。 
24.              * document是PDF文档中所有元素的容器。 
25.              * 第一个参数表示页的大小，其后的参数分别表示左、右、上、下的边距。 
26.              */  
27.             Document document = new Document(PageSize.A4, 50, 50, 50, 50);   
28.               
29.             /** *//**  
30.              * 此处创建的write定义了上面创建的document的类型。 
31.              * 除了PdfWriter以为，还有HtmlWriter, RtfWriter, XmlWriter和一些别的类型。 
32.              * 第一个参数引用document对象，第二个参数指定了输出文件的绝对路径。 
33.              * 接着，我们open这个document往里边写入数据。 
34.              */  
35.             PdfWriter writer = PdfWriter.getInstance(document,  
36.                     new FileOutputStream("c:/ITextTest.pdf"));  
37.             writer.setViewerPreferences(PdfWriter.HideMenubar  
38.                     | PdfWriter.HideToolbar); // 隐藏菜单栏和工具栏  
39.             document.open();  
40.               
41.             /** *//** 
42.              * 现在，我们往document的第一页中加入一些文本内容。 
43.              * 所有的文本都要使用com.lowagie.text.Paragraph才能添加。 
44.              * 可以创建一个默认的paragraph，使用默认的字体，颜色，尺寸等属性，也可使使用自己定义的字体。 
45.              * 下面分别进行了这两种操作。 
46.              */  
47.             document.add(new Paragraph("First page of the document."));  
48.             document.add(new Paragraph(  
49.                             "Some more text on the first page with different color and font type.",  
50.                             FontFactory.getFont(FontFactory.COURIER, 14,  
51.                                     Font.BOLD, new Color(255, 150, 200))));  
52.   
53.             /** *//** 
54.              * 接下来，我们往document中添加一些复杂的元素。 
55.              * 让我们从创建一个新的chapter开始。 
56.              * chapter是一个特殊的部分，它将从新的一页开始，默认显示数字序号。 
57.              */  
58.             Paragraph title1 = new Paragraph("Chapter 1", FontFactory.getFont(  
59.                     FontFactory.HELVETICA, 18, Font.BOLDITALIC, new Color(0, 0,  
60.                             255)));  
61.             Chapter chapter1 = new Chapter(title1, 1);   
62.             chapter1.setNumberDepth(0);   
63.               
64.             /** *//** 
65.              * Section是chapter的一个子元素。 
66.              * 在下面的代码中我们创建了一个题为"This is Section 1 in Chapter 1" 的Section。 
67.              * 为了在Section下添加文本，我们再创建一个Paragraph对象，将其增加到Section对象中。 
68.              */  
69.             Paragraph title11 = new Paragraph("This is Section 1 in Chapter 1",  
70.                     FontFactory.getFont(FontFactory.HELVETICA, 16, Font.BOLD,  
71.                             new Color(255, 0, 0)));  
72.             Section section1 = chapter1.addSection(title11);  
73.             Paragraph someSectionText = new Paragraph(  
74.                     "This text comes as part of section 1 of chapter 1.");  
75.             section1.add(someSectionText);  
76.             someSectionText = new Paragraph("Following is a 3 X 2 table.");  
77.             section1.add(someSectionText);  
78.               
79.             /** *//**  
80.              * 接着，再创建一个表格(table)对象。 
81.              * 表格中含有一个行和列的矩阵。 
82.              * 一行中的单元格(cell)可以延伸到多列。 
83.              * 同样的，一列中的单元格可以延伸到多行。 
84.              * 因此，一个3x2的表格不需要6个单元格。 
85.              */  
86.             Table t = new Table(3, 2);  
87.             //设置边框颜色。如果颜色和背景色一样，则边框不会显示出来  
88.             t.setBorderColor(Color.white);  
89.             //设置单元格内文本的间距  
90.             t.setPadding(5);  
91.             //设置相邻单元格的间距  
92.             t.setSpacing(5);  
93.             t.setBorderWidth(1);  
94.               
95.             /** *//**  
96.              * 然后，创建3个单元格对象，包含不同的内容。 
97.              * 依次将其放入表格中。 
98.              * 先放在第一行第一列，再放在同一行的下一列中，…… 
99.              * 当一行填满之后，下一个单元格将放在下一行的第一列中。 
100.              * 只给定单元格的内容（不新建单元格）也可以新增一个单元格，比如t.addCell("1.1");。 
101.              * 最后，将表格添加到Section对象中。 
102.              */  
103.             Cell c1 = new Cell("Header1");  
104.             //设置单元格边框颜色，设置方法和表格边框一样  
105.             c1.setBorderColor(Color.WHITE);  
106.             t.addCell(c1);  
107.             c1 = new Cell("Header2");  
108.             t.addCell(c1);  
109.             c1 = new Cell("Header3");  
110.             t.addCell(c1);  
111.             t.addCell("1.1");  
112.             t.addCell("1.2");  
113.             t.addCell("1.3");  
114.             section1.add(t);  
115.   
116.             /** *//** 
117.              * 接下来，往PDF文档中添加一个列表(List)。 
118.              * 一个列表包含许多列表项(ListItem)。 
119.              * 列表可以编号也可以不编号。 
120.              * 将List的第一个参数置true表示创建的是一个编号的列表； 
121.              * 第二个参数表示是否使用字母编号，true为使用字母，false为使用数字 
122.              * 第三个参数为缩进值。 
123.              */  
124.             List l = new List(true, false, 10);  
125.             l.add(new ListItem("First item of list"));  
126.             l.add(new ListItem("Second item of list"));  
127.             section1.add(l);  
128.   
129.             /** *//** 
130.              * 将chapter放入document中。 
131.              * 关闭document。 
132.              */  
133.             document.add(chapter1);  
134.             document.close();  
135.         } catch (Exception e) ...{  
136.             System.out.println(e.getMessage());  
137.         }  
138.     }  
139. }