一、前言
首先需要在Maven中添加相应的jar包依赖,若项目没用到Maven,也可自行下载相应所需的jar包(itextpdf.jar 与 itext-asian.jar),如下图所示。点此下载
Maven中添加依赖jar包如下所示:
1 <!-- pdf start -->
2 <dependency>
3 <groupId>com.itextpdf</groupId>
4 <artifactId>itextpdf</artifactId>
5 <version>5.3.2</version>
6 </dependency>
7 <dependency>
8 <groupId>com.itextpdf</groupId>
9 <artifactId>itext-asian</artifactId>
10 <version>5.2.0</version>
11 </dependency>
12 <!-- pdf end -->
二、正文
1、首先获取需要填写至PDF中的数据,如下述所示,realPath为添加图片的路径,test.pdf为未添加图片的PDF临时文件,在Tomcat服务器对应路径下,以及导出的PDF文件存至桌面:
1 //点击下载获取企业信息并存至Pdf
2 @RequestMapping(value="/downloadPdf.do")
3 @ResponseBody
4 public String downloadPdf(@RequestParam(value = "download_corp_id") String download_corp_id, HttpServletRequest request) throws Exception {
5 List<TCorp> corpIfs = searchCorpService.getCorpInfo(Integer.parseInt(download_corp_id));
6 TCorp tCorp = new TCorp();
7 for (TCorp corpInfo: corpIfs){
8 tCorp.setId(corpInfo.getId());
9 tCorp.setRegNo(corpInfo.getRegNo());
10 tCorp.setCorpName(corpInfo.getCorpName());
11 tCorp.setCorpAddr(corpInfo.getCorpAddr());
12 tCorp.setBelongOrg(corpInfo.getBelongOrg());
13 tCorp.setBelongDistOrg(corpInfo.getBelongDistOrg());
14 tCorp.setBelongTrade(corpInfo.getBelongTrade());
15 tCorp.setEconKind(corpInfo.getEconKind());
16 tCorp.setAdmitMain(corpInfo.getAdmitMain());
17 tCorp.setStartDate(corpInfo.getStartDate());
18 tCorp.setCheckDate(corpInfo.getCheckDate());
19 tCorp.setOperManIdentNo(corpInfo.getOperManIdentNo());
20 tCorp.setOperManName(corpInfo.getOperManName());
21 tCorp.setCorpStatus(corpInfo.getCorpStatus());
22 tCorp.setRegCapi(corpInfo.getRegCapi());
23 tCorp.setPaidCapi(corpInfo.getPaidCapi());
24 tCorp.setFareTermStart(corpInfo.getFareTermStart());
25 tCorp.setFareTermEnd(corpInfo.getFareTermEnd());
26 tCorp.setFareScope(corpInfo.getFareScope());
27 tCorp.setUniScid(corpInfo.getUniScid());
28 tCorp.setCorpTel(corpInfo.getCorpTel());
29 tCorp.setCorpWebUrl(corpInfo.getCorpWebUrl());
30 tCorp.setCorpLogo(corpInfo.getCorpLogo());
31 tCorp.setCorpEmail(corpInfo.getCorpEmail());
32 tCorp.setPracPersonNum(corpInfo.getPracPersonNum());
33 tCorp.setOrgInstCode(corpInfo.getOrgInstCode());
34 tCorp.setTaxpayNum(corpInfo.getTaxpayNum());
35 tCorp.setStaffSize(corpInfo.getStaffSize());
36 tCorp.setEnglishName(corpInfo.getEnglishName());
37 tCorp.setFormerName(corpInfo.getFormerName());
38 tCorp.setCorpInfo(corpInfo.getCorpInfo());
39 tCorp.setCreateDate(corpInfo.getCreateDate());
40 tCorp.setCreateOrg(corpInfo.getCreateOrg());
41 }
42
43 String realPath = request.getSession().getServletContext().getRealPath("/") + "\\icon\\logo_64.png";
44 PDFReport.settCorp(tCorp);
45 new PDFReport("test.pdf").generatePDF();
46 PDFUtil.addImage("test.pdf", "C:\\Users\\Administrator\\Desktop\\"+tCorp.getCorpName()+".pdf",realPath);
47
48 return "提示:数据导出成功!";
49 }
2、PDFReport类中申明一个文档类型建立Document对象,设置页面样式等:
1 package util;
2
3 import com.itextpdf.text.Document;
4 import com.itextpdf.text.PageSize;
5 import com.itextpdf.text.Rectangle;
6 import com.itextpdf.text.pdf.PdfPTable;
7 import com.itextpdf.text.pdf.PdfWriter;
8 import entity.TCorp;
9
10 import java.io.File;
11 import java.io.FileOutputStream;
12
13 public class PDFReport {
14 private static TCorp tCorp;
15
16 Document document = new Document();// 建立一个Document对象
17
18 public PDFReport(String out) {
19 try {
20 File file = new File(out);
21 file.createNewFile();
22 Rectangle pageSize = new Rectangle(PageSize.A4);
23 document.setPageSize(pageSize);
24 PdfWriter writer = PdfWriter.getInstance(document, new FileOutputStream(file));
25 PDFBuilder builder = new PDFBuilder();
26 writer.setPageEvent(builder);
27 document.open();
28 PdfPTable table = generatePDF();
29 document.add(table);
30 document.close();
31 } catch (Exception e) {
32 e.printStackTrace();
33 }
34 }
35
36 public static void settCorp(TCorp tCorp) {
37 PDFReport.tCorp = tCorp;
38 }
39
40
41 public PdfPTable generatePDF() {
42 //设置单元格为5列
43 PdfPTable table = PDFUtil.createTable(5);
44
45 table.addCell(PDFUtil.createHeadCell("企业信息列表"));
46 table.addCell(PDFUtil.createTitleCell_1("企业名称"));
47 table.addCell(PDFUtil.createCell_1(tCorp.getCorpName()));
48 table.addCell(PDFUtil.createTitleCell_1("联系方式"));
49 table.addCell(PDFUtil.createCell_1(tCorp.getCorpTel()));
50 table.addCell(PDFUtil.createCell_2("Logo"));
51
52 table.addCell(PDFUtil.createTitleCell_1("企业邮箱"));
53 table.addCell(PDFUtil.createCell_1(tCorp.getCorpEmail()));
54 table.addCell(PDFUtil.createTitleCell_1("网址"));
55 table.addCell(PDFUtil.createCell_1(tCorp.getCorpWebUrl()));
56
57 table.addCell(PDFUtil.createTitleCell_1("企业地址"));
58 table.addCell(PDFUtil.createCell_1(tCorp.getCorpAddr()));
59 table.addCell(PDFUtil.createTitleCell_1("注册/实缴"));
60 table.addCell(PDFUtil.createCell_1(String.valueOf(tCorp.getRegCapi())+"万 / "+String.valueOf(tCorp.getPaidCapi())+"万"));
61
62 table.addCell(PDFUtil.createTitleCell_1("成立日期"));
63 table.addCell(PDFUtil.createCell_1(tCorp.getStartDate()));
64 table.addCell(PDFUtil.createTitleCell_1("统一社会信用代码"));
65 table.addCell(PDFUtil.createCell_3(tCorp.getUniScid()));
66
67 table.addCell(PDFUtil.createTitleCell_1("法定代表人"));
68 table.addCell(PDFUtil.createCell_1(tCorp.getOperManName()));
69 table.addCell(PDFUtil.createTitleCell_1("纳税人识别号"));
70 table.addCell(PDFUtil.createCell_3(tCorp.getTaxpayNum()));
71
72 table.addCell(PDFUtil.createTitleCell_1("注册号"));
73 table.addCell(PDFUtil.createCell_1(tCorp.getRegNo()));
74 table.addCell(PDFUtil.createTitleCell_1("组织机构代码"));
75 table.addCell(PDFUtil.createCell_3(tCorp.getOrgInstCode()));
76
77 table.addCell(PDFUtil.createTitleCell_1("公司类型"));
78 table.addCell(PDFUtil.createCell_1(tCorp.getEconKind()));
79 table.addCell(PDFUtil.createTitleCell_1("人员规模"));
80 table.addCell(PDFUtil.createCell_3(tCorp.getStaffSize()));
81
82 table.addCell(PDFUtil.createTitleCell_1("营业期限"));
83 table.addCell(PDFUtil.createCell_1(tCorp.getFareTermStart()+" 至 "+tCorp.getFareTermEnd()));
84 table.addCell(PDFUtil.createTitleCell_1("登记机关"));
85 table.addCell(PDFUtil.createCell_3(tCorp.getBelongOrg()));
86
87 table.addCell(PDFUtil.createTitleCell_1("核准日期"));
88 table.addCell(PDFUtil.createCell_1(tCorp.getCheckDate()));
89 table.addCell(PDFUtil.createTitleCell_1("所属行业"));
90 table.addCell(PDFUtil.createCell_3(tCorp.getBelongTrade()));
91
92 table.addCell(PDFUtil.createTitleCell_1("英文名称"));
93 table.addCell(PDFUtil.createCell_1(tCorp.getEnglishName()));
94 table.addCell(PDFUtil.createTitleCell_1("曾用名"));
95 table.addCell(PDFUtil.createCell_3(tCorp.getFormerName()));
96
97 table.addCell(PDFUtil.createTitleCell_2("经营范围"));
98 table.addCell(PDFUtil.createCell_4(tCorp.getFareScope()));
99
100 return table;
101 }
102 }
3、PDFUtil类中设置字体、表格样式、以及水印文字样式,setColspan函数为设置所跨列数,setRowspan函数为设置所跨行数:
1 package util;
2
3 import com.itextpdf.text.*;
4 import com.itextpdf.text.pdf.*;
5
6 import javax.imageio.ImageIO;
7 import java.io.BufferedOutputStream;
8 import java.io.File;
9 import java.io.FileOutputStream;
10
11 public class PDFUtil {
12 private static Font headfont ; // 设置字体大小
13 private static Font keyfont; // 设置字体大小
14 private static Font textfont; // 设置字体大小
15
16 static{
17 BaseFont bfChinese;
18 try {
19 bfChinese = BaseFont.createFont("STSong-Light","UniGB-UCS2-H",BaseFont.NOT_EMBEDDED);
20 headfont = new Font(bfChinese, 24, Font.BOLD,BaseColor.BLACK);// 设置字体大小
21 keyfont = new Font(bfChinese, 12, Font.BOLD,BaseColor.BLACK);// 设置字体大小
22 textfont = new Font(bfChinese, 10, Font.NORMAL,BaseColor.BLACK);// 设置字体大小
23 } catch (Exception e) {
24 e.printStackTrace();
25 }
26 }
27
28 //表格标题
29 public static PdfPCell createHeadCell(String value){
30 PdfPCell cell = new PdfPCell();
31 cell.setVerticalAlignment(15);
32 cell.setHorizontalAlignment(15);
33 cell.setColspan(5);
34 cell.setPhrase(new Phrase(value,headfont));
35 cell.setHorizontalAlignment(Element.ALIGN_CENTER); //水平居中
36 cell.setPadding(10.0f);
37 cell.setBorder(0);
38 cell.setPaddingTop(5.0f);
39 cell.setPaddingBottom(18.0f);
40 return cell;
41 }
42
43 //表格表头样式1
44 public static PdfPCell createTitleCell_1(String value){
45 PdfPCell cell = new PdfPCell();
46 cell.setVerticalAlignment(Element.ALIGN_MIDDLE);
47 cell.setHorizontalAlignment(Element.ALIGN_CENTER);
48 cell.setPhrase(new Phrase(value, keyfont));
49 cell.setBackgroundColor(new BaseColor(29, 181, 238));
50 cell.setColspan(1);
51 cell.setFixedHeight(35);
52 return cell;
53 }
54
55 //表格表头样式2
56 public static PdfPCell createTitleCell_2(String value){
57 PdfPCell cell = new PdfPCell();
58 cell.setVerticalAlignment(Element.ALIGN_MIDDLE);
59 cell.setHorizontalAlignment(Element.ALIGN_CENTER);
60 cell.setPhrase(new Phrase(value, keyfont));
61 cell.setBackgroundColor(new BaseColor(29, 181, 238));
62 cell.setColspan(1);
63 cell.setRowspan(3);
64 cell.setFixedHeight(105);
65 return cell;
66 }
67
68 //表格内容样式1
69 public static PdfPCell createCell_1(String value){
70 PdfPCell cell = new PdfPCell();
71 cell.setVerticalAlignment(Element.ALIGN_MIDDLE);
72 cell.setHorizontalAlignment(Element.ALIGN_CENTER);
73 cell.setPhrase(new Phrase(value,textfont));
74 cell.setBackgroundColor(new BaseColor(255, 255, 255));
75 cell.setColspan(1);
76 cell.setFixedHeight(35);
77 return cell;
78 }
79
80 //表格内容样式2
81 public static PdfPCell createCell_2(String value){
82 PdfPCell cell = new PdfPCell();
83 cell.setVerticalAlignment(Element.ALIGN_MIDDLE);
84 cell.setHorizontalAlignment(Element.ALIGN_CENTER);
85 cell.setPhrase(new Phrase(value,textfont));
86 cell.setBackgroundColor(new BaseColor(255, 255, 255));
87 cell.setColspan(1);
88 cell.setRowspan(3);
89 cell.setFixedHeight(105);
90 return cell;
91 }
92
93 //表格内容样式3
94 public static PdfPCell createCell_3(String value){
95 PdfPCell cell = new PdfPCell();
96 cell.setVerticalAlignment(Element.ALIGN_MIDDLE);
97 cell.setHorizontalAlignment(Element.ALIGN_CENTER);
98 cell.setPhrase(new Phrase(value,textfont));
99 cell.setBackgroundColor(new BaseColor(255, 255, 255));
100 cell.setColspan(2);
101 cell.setFixedHeight(35);
102 return cell;
103 }
104
105 //表格内容样式4
106 public static PdfPCell createCell_4(String value){
107 PdfPCell cell = new PdfPCell();
108 cell.setVerticalAlignment(Element.ALIGN_MIDDLE);
109 cell.setHorizontalAlignment(Element.ALIGN_CENTER);
110 cell.setPhrase(new Phrase(value,textfont));
111 cell.setBackgroundColor(new BaseColor(255, 255, 255));
112 cell.setColspan(4);
113 cell.setRowspan(3);
114 cell.setFixedHeight(105);
115 return cell;
116 }
117
118 //生成表格
119 public static PdfPTable createTable(int colNumber){
120 int widths[] = { 35,40,35,35,30 };
121 PdfPTable baseTable = new PdfPTable(colNumber);
122 baseTable.setWidthPercentage(100);
123 baseTable.setSpacingBefore(10);
124 try {
125 baseTable.setWidths(widths);
126 } catch (DocumentException e) {
127 e.printStackTrace();
128 }
129 return baseTable;
130 }
131
132
133 public static void addImage(String input,String output,String realPath) throws Exception{
134 BufferedOutputStream out = new BufferedOutputStream(
135 new FileOutputStream(new File(output)));
136 PdfReader reader = new PdfReader(input);
137 PdfStamper stamper = new PdfStamper(reader, out);
138 addWatermark(stamper,"测试添加水印文字");
139 int total = reader.getNumberOfPages();
140 try {
141 Image image = Image.getInstance(realPath);
142 image.setAbsolutePosition(350, 200);
143 image.scaleToFit(160, 70);
144 PdfContentByte content= stamper.getOverContent(total);// 在内容上方加水印
145 content.addImage(image);
146 }catch (Exception e){
147 e.printStackTrace();
148 }
149
150 stamper.close();
151 reader.close();
152 }
153
154 public static void addWatermark(PdfStamper pdfStamper, String waterMarkName) throws Exception {
155 PdfContentByte content;
156 BaseFont base = BaseFont.createFont("STSong-Light", "UniGB-UCS2-H",
157 BaseFont.NOT_EMBEDDED);
158 Rectangle pageRect;
159 PdfGState gs = new PdfGState();
160 try {
161 if (base == null || pdfStamper == null) {
162 return;
163 }
164 // 设置透明度为0.4
165 gs.setFillOpacity(0.3f);
166 gs.setStrokeOpacity(0.3f);
167 int toPage = pdfStamper.getReader().getNumberOfPages();
168 for (int i = 1; i <= toPage; i++) {
169 pageRect = pdfStamper.getReader().getPageSizeWithRotation(i);
170 // 计算水印X,Y坐标
171 float x = pageRect.getWidth() / 2;
172 float y = pageRect.getHeight() / 2;
173 // 获得PDF最顶层
174 content = pdfStamper.getOverContent(i);
175 content.saveState();
176 // set Transparency
177 content.setGState(gs);
178 content.beginText();
179 content.setColorFill(BaseColor.GRAY);
180 content.setFontAndSize(base, 30);
181 // 水印文字成45度角倾斜
182 content.showTextAligned(Element.ALIGN_CENTER, waterMarkName, x,
183 y, 45);
184 content.endText();
185 }
186 } catch (Exception ex) {
187 ex.printStackTrace();
188 }
189 }
190 }
4、PDFBuilder类中为设置页面附加属性:
1 package util;
2
3 import com.itextpdf.text.*;
4 import com.itextpdf.text.pdf.*;
5
6 import java.io.IOException;
7
8 public class PDFBuilder extends PdfPageEventHelper {
9 /**
10 * 页眉
11 */
12 public String header = "";
13
14 /**
15 * 文档字体大小,页脚页眉最好和文本大小一致
16 */
17 public int presentFontSize = 12;
18
19
20 // 模板
21 public PdfTemplate total;
22
23 // 基础字体对象
24 public BaseFont bf = null;
25
26 // 利用基础字体生成的字体对象,一般用于生成中文文字
27 public Font fontDetail = null;
28
29 /**
30 *
31 * Creates a new instance of PdfReportM1HeaderFooter 无参构造方法.
32 *
33 */
34 public PDFBuilder() {
35
36 }
37
38 public void setHeader(String header) {
39 this.header = header;
40 }
41
42 /**
43 *
44 * TODO 文档打开时创建模板
45 *
46 * @see com.itextpdf.text.pdf.PdfPageEventHelper#onOpenDocument(com.itextpdf.text.pdf.PdfWriter,
47 * com.itextpdf.text.Document)
48 */
49 public void onOpenDocument(PdfWriter writer, Document document) {
50 total = writer.getDirectContent().createTemplate(50, 50);// 共 页 的矩形的长宽高
51 }
52
53 /**
54 *
55 * TODO 关闭每页的时候,写入页眉,写入'第几页共'这几个字。
56 *
57 * @see com.itextpdf.text.pdf.PdfPageEventHelper#onEndPage(com.itextpdf.text.pdf.PdfWriter,
58 * com.itextpdf.text.Document)
59 */
60 public void onEndPage(PdfWriter writer, Document document) {
61 this.addPage(writer, document);
62 }
63
64 //加分页
65 public void addPage(PdfWriter writer, Document document){
66 try {
67 if (bf == null) {
68 bf = BaseFont.createFont("STSong-Light", "UniGB-UCS2-H", false);
69 }
70 if (fontDetail == null) {
71 fontDetail = new Font(bf, presentFontSize, Font.NORMAL);// 数据体字体
72 }
73 } catch (DocumentException e) {
74 e.printStackTrace();
75 } catch (IOException e) {
76 e.printStackTrace();
77 }
78
79 // 1.写入页眉
80 ColumnText.showTextAligned(writer.getDirectContent(),
81 Element.ALIGN_LEFT, new Phrase(header, fontDetail),
82 document.left(), document.top() + 20, 0);
83 // 2.写入前半部分的 第 X页/共
84 int pageS = writer.getPageNumber();
85 String foot1 = "第 " + pageS + " 页 / 共";
86 Phrase footer = new Phrase(foot1, fontDetail);
87
88 // 3.计算前半部分的foot1的长度,后面好定位最后一部分的'Y页'这俩字的x轴坐标,字体长度也要计算进去 = len
89 float len = bf.getWidthPoint(foot1, presentFontSize);
90
91 // 4.拿到当前的PdfContentByte
92 PdfContentByte cb = writer.getDirectContent();
93
94 // 5.写入页脚1,x轴就是(右margin+左margin + right() -left()- len)/2.0F
95 // 再给偏移20F适合人类视觉感受,否则肉眼看上去就太偏左了
96 // ,y轴就是底边界-20,否则就贴边重叠到数据体里了就不是页脚了;注意Y轴是从下往上累加的,最上方的Top值是大于Bottom好几百开外的。
97 ColumnText
98 .showTextAligned(
99 cb,
100 Element.ALIGN_CENTER,
101 footer,
102 (document.rightMargin() + document.right()
103 + document.leftMargin() - document.left() - len) / 2.0F + 20F,
104 document.bottom() - 20, 0);
105
106 // 6.写入页脚2的模板(就是页脚的Y页这俩字)添加到文档中,计算模板的和Y轴,X=(右边界-左边界 - 前半部分的len值)/2.0F +
107 // len , y 轴和之前的保持一致,底边界-20
108 cb.addTemplate(total, (document.rightMargin() + document.right()
109 + document.leftMargin() - document.left()) / 2.0F + 20F,
110 document.bottom() - 20); // 调节模版显示的位置
111
112 }
113
114
115 /**
116 *
117 * TODO 关闭文档时,替换模板,完成整个页眉页脚组件
118 *
119 * @see com.itextpdf.text.pdf.PdfPageEventHelper#onCloseDocument(com.itextpdf.text.pdf.PdfWriter,
120 * com.itextpdf.text.Document)
121 */
122 public void onCloseDocument(PdfWriter writer, Document document) {
123 // 7.最后一步,是关闭文档的时候,将模板替换成实际的 Y 值,至此,page x of y 制作完毕,完美兼容各种文档size。
124 total.beginText();
125 total.setFontAndSize(bf, presentFontSize);// 生成的模版的字体、颜色
126 String foot2 = " " + (writer.getPageNumber()-1) + " 页";
127 total.showText(foot2);// 模版显示的内容
128 total.endText();
129 total.closePath();
130 }
131 }
最后附上生成的PDF效果图:
本文学习参考了:
至此是关于JavaWeb项目生成PDF文件添加水印图片并导出,仅供参考。