Java生成PDF之iTextPDF的使用
今天做财务方面相关数据的导出功能，需要导出PDF和Excel，在项目经理那里得知有一个叫iTextPDF的java框架导出PDF文件很好用，于是拿来玩儿玩儿。
1 package com.smart.produce.modules.finance.controller;
2
3 import com.alibaba.fastjson.JSONObject;
4 import com.itextpdf.text.Document;
5 import com.itextpdf.text.PageSize;
6 import com.itextpdf.text.Rectangle;
7 import com.itextpdf.text.pdf.PdfWriter;
8 import com.smart.produce.modules.finance.service.IExportService;
9 import org.springframework.beans.factory.annotation.Autowired;
10 import org.springframework.stereotype.Controller;
11 import org.springframework.web.bind.annotation.RequestMapping;
12 import org.springframework.web.bind.annotation.RequestMethod;
13 import org.springframework.web.bind.annotation.ResponseBody;
14
15 import javax.servlet.http.HttpServletRequest;
16 import java.io.FileOutputStream;
17 import java.lang.reflect.Method;
18
19 @Controller
20 @RequestMapping("${admin.url.prefix}/finance/export")
21 public class ExportController {
22
23 @Autowired
24 private IExportService exportService;
25
26 private String exportPath = "/static/financeExport";
27
28 @ResponseBody
29 @RequestMapping(value="exportPDF", method={RequestMethod.GET, RequestMethod.POST})
30 public String expStatementPDF(HttpServletRequest request, String name) {
31 JSONObject result = new JSONObject();
32 result.put("code", 0);
33 result.put("msg", "success");
34 // 输出文件路径
35 String filePath = exportPath + "/" + name + ".pdf";
36 result.put("data", filePath);
37 String realPath = request.getServletContext().getRealPath("/");
38 try {
39 //Step 1—Create a Document.
40 Rectangle rectangle = new Rectangle(PageSize.A4);
41 Document document = new Document(rectangle);
42 document.setMargins(20, 20, 40, 40);
43 //Step 2—Get a PdfWriter instance.
44 PdfWriter.getInstance(document, new FileOutputStream(realPath + filePath));
45 //Step 3—Open the Document.
46 document.open();
47 //Step 4—Add content.
48 Method method = IExportService.class.getDeclaredMethod(name + "Print", new Class[]{Document.class, String.class});
49 method.invoke(exportService, document, realPath);
50 //Step 5—Close the Document.
51 document.close();
52 } catch(Exception e) {
53 e.printStackTrace();
54 result.put("code", -1);
55 result.put("msg", e.getMessage());
56 }
57 return result.toString();
58 }
59
60 }
生成文档类
1 package com.smart.produce.modules.finance.service.impl;
2
3 import com.alibaba.fastjson.JSONArray;
4 import com.alibaba.fastjson.JSONObject;
5 import com.itextpdf.text.*;
6 import com.itextpdf.text.pdf.BaseFont;
7 import com.itextpdf.text.pdf.PdfPCell;
8 import com.itextpdf.text.pdf.PdfPTable;
9 import com.smart.produce.modules.basic.entity.Customer;
10 import com.smart.produce.modules.basic.service.ICustomerService;
11 import com.smart.produce.modules.finance.service.IExportService;
12 import com.smart.produce.modules.finance.service.IFinReceiptService;
13 import com.smart.produce.modules.printorder.service.IOprPrintOrderService;
14 import com.smart.produce.modules.printorder.service.ISettlementService;
15 import com.smart.produce.modules.sys.service.IUserService;
16 import org.springframework.beans.factory.annotation.Autowired;
17 import org.springframework.stereotype.Service;
18
19 import java.util.ArrayList;
20 import java.util.List;
21
22 /**
23 * @Title: PDF输出
24 * @Description: PDF输出
25 * @author guanghe
26 * @date 2018-09-26 15:32:08
27 * @version V1.0
28 *
29 */
30 @Service("finExportService")
31 public class ExportServiceImpl implements IExportService {
32
33 @Autowired
34 protected IUserService userService;
35
36 @Autowired
37 protected IOprPrintOrderService oprPrintOrderService;
38
39 @Autowired
40 protected IFinReceiptService finReceiptService;
41
42 @Autowired
43 protected ICustomerService customerService;
44
45 @Autowired
46 protected ISettlementService settlementService;
47
48 // 标题字体
49 private Font simheiBig = null;
50 // 副标题字体
51 private Font simheiMiddle = null;
52 // 表头字体
53 private Font simhei = null;
54 // 正文字体
55 private Font simfang = null;
56 // 正文加粗字体
57 private Font simfangBold = null;
58
59 //初始化字体
60 protected void initFonts(String realPath) throws Exception{
61 String fontPath = realPath +"/static/fonts";
62 if(simhei == null) {
63 BaseFont baseFont = BaseFont.createFont(fontPath + "/simhei.ttf", BaseFont.IDENTITY_H, BaseFont.EMBEDDED);
64 simheiBig = new Font(baseFont, 20);
65 simheiMiddle = new Font(baseFont, 16);
66 simhei = new Font(baseFont, 12);
67 baseFont = BaseFont.createFont(fontPath + "/simfang.ttf", BaseFont.IDENTITY_H, BaseFont.EMBEDDED);
68 simfang = new Font(baseFont, 10);
69 simfangBold = new Font(baseFont, 10, Font.BOLD);
70 }
71 }
72
73 protected PdfPCell getCell(String content) {
74 Paragraph p = new Paragraph(content, simfangBold);
75 p.setAlignment(Element.ALIGN_CENTER);
76 PdfPCell cell = new PdfPCell();
77 cell.addElement(p);
78 cell.setBorderColor(BaseColor.LIGHT_GRAY);
79 cell.setFixedHeight(25);
80 cell.setUseAscender(true);
81 cell.setVerticalAlignment(Element.ALIGN_MIDDLE);
82 return cell;
83 }
84
85 @Override
86 public void statementPrint(Document document, String realPath, String dataStr) throws Exception {
87 initFonts(realPath);
88 JSONObject data = JSONObject.parseObject(dataStr);
89 String customerId = data.getString("customerId");
90 Customer customer = customerService.selectById(customerId);
91 JSONArray detail = data.getJSONArray("detail");
92 //创建三列的表头表格
93 PdfPTable tbTitle = new PdfPTable(3);
94 //去掉表头表格的边框
95 int wtTitle[] = {30,40,30};
96 tbTitle.setWidths(wtTitle);
97 tbTitle.getDefaultCell().setBorder(0);
98 //留出空余
99 tbTitle.addCell("");
100 //添加主标题
101 PdfPCell cellTitle = new PdfPCell();
102 Paragraph pTitle = new Paragraph();
103 Chunk chkTitle = new Chunk("对 账 单", simheiBig);
104 chkTitle.setUnderline(1, -3f);
105 pTitle.add(chkTitle);
106 pTitle.setAlignment(Element.ALIGN_CENTER);
107 cellTitle.addElement(pTitle);
108 cellTitle.setVerticalAlignment(Element.ALIGN_BOTTOM);
109 cellTitle.setBorder(0);
110 tbTitle.addCell(cellTitle);
111 //添加标注
112 PdfPCell cellLabel = new PdfPCell();
113 Paragraph pLabel = new Paragraph("单据记录式", simheiMiddle);
114 pLabel.setAlignment(Element.ALIGN_RIGHT);
115 cellLabel.setVerticalAlignment(Element.ALIGN_TOP);
116 cellLabel.setBorder(0);
117 cellLabel.addElement(pLabel);
118 tbTitle.addCell(cellLabel);
119 document.add(tbTitle);
120 //添加空行
121 Paragraph blankRow = new Paragraph(18f, " ");
122 document.add(blankRow);
123 //添加副标题
124 PdfPTable tbSubtitle = new PdfPTable(1);
125 PdfPCell cellSubtitle = new PdfPCell();
126 Paragraph pSubtitle = new Paragraph("客户信息", simheiMiddle);
127 cellSubtitle.addElement(pSubtitle);
128 cellSubtitle.setPaddingBottom(5);
129 cellSubtitle.setBorderWidthTop(0);
130 cellSubtitle.setBorderWidthLeft(0);
131 cellSubtitle.setBorderWidthRight(0);
132 cellSubtitle.setBorderWidthBottom(2);
133 tbSubtitle.addCell(cellSubtitle);
134 document.add(tbSubtitle);
135 //添加明细表头
136 PdfPTable tbNote = new PdfPTable(3);
137 int wtNote[] = {30,40,30};
138 tbNote.setWidths(wtNote);
139 //添加客户编号
140 PdfPCell cellNo = new PdfPCell();
141 Paragraph pNo = new Paragraph("客户编号：" + customer.getCustomerNo(), simhei);
142 cellNo.addElement(pNo);
143 cellNo.setBorder(0);
144 tbNote.addCell(cellNo);
145 //添加客户名称
146 PdfPCell cellName = new PdfPCell();
147 Paragraph pName = new Paragraph("客户名称：" + customer.getCustomerName(), simhei);
148 cellName.addElement(pName);
149 cellName.setBorder(0);
150 tbNote.addCell(cellName);
151 //添加联系方式
152 PdfPCell cellContact = new PdfPCell();
153 Paragraph pContact = new Paragraph("联系电话：" + customer.getPhone(), simhei);
154 pContact.setAlignment(Element.ALIGN_RIGHT);
155 cellContact.addElement(pContact);
156 cellContact.setBorder(0);
157 tbNote.addCell(cellContact);
158 document.add(tbNote);
159 //添加空行
160 document.add(blankRow);
161 //添加明细表格
162 PdfPTable tbDetail = new PdfPTable(7);
163 int wtDetail[] = {7, 18, 15, 15, 15, 15, 15};;
164 tbDetail.setWidths(wtDetail);
165 String heads[] = {"序号", "订单编号", "订单日期", "订单经手", "订单金额", "已清金额", "未清金额"};
166 for(int i = 0; i < heads.length; i++) {
167 PdfPCell cellHead = getCell(heads[i]);
168 cellHead.setBackgroundColor(new BaseColor(230,230,230));
169 tbDetail.addCell(cellHead);
170 }
171 document.add(tbDetail);
172 for(int i = 0; i < detail.size(); i++) {
173 JSONObject item = detail.getJSONObject(i);
174 PdfPTable table = new PdfPTable(7);
175 int width[] = {7, 18, 15, 15, 15, 15, 15};
176 table.setWidths(width);
177 String num = (i + 1) + "";
178 List<String> contents = new ArrayList<String>(){{
179 add(num);
180 add(item.getString("orderNo"));
181 add(item.getString("createDate"));
182 add(item.getJSONObject("createBy").getString("username"));
183 add(item.getString("orderAmount"));
184 add(item.getString("receivedAmount"));
185 add(item.getString("debtAmount"));
186 }};
187 for(int j = 0; j < contents.size(); j++) {
188 PdfPCell cell = getCell(contents.get(j));
189 table.addCell(cell);
190 }
191 document.add(table);
192 }
193 }
194
195 @Override
196 public void topupPrint(Document document, String realPath, String dataStr) throws Exception {
197
198 }
199
200 @Override
201 public void receiptPrint(Document document, String realPath, String dataStr) throws Exception {
202 initFonts(realPath);
203 JSONObject data = JSONObject.parseObject(dataStr);
204 }
205
206 @Override
207 public void prestoreExp() {
208
209 }
210
211 @Override
212 public void topupExp() {
213
214 }
215
216 @Override
217 public void receiptExp() {
218
219 }
220
221 @Override
222 public void summaryExp() {
223
224 }
225 }
