spring boot itext 导出pdf

今天做了一个spring boot 导出pdf的功能记录一下方便自己和他人

1.pom引入jar包

<dependency>
   <groupId>com.itextpdf</groupId>
   <artifactId>itext7-core</artifactId>
   <version>7.1.2</version>
   <type>pom</type>
   </dependency>

   <dependency>
       <groupId>commons-io</groupId>
       <artifactId>commons-io</artifactId>
       <version>2.2</version>
       </dependency>

2.写一个pdf导出服务Service

package com.example.demo.service;

import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;

import org.apache.commons.io.IOUtils;
import org.springframework.core.io.ClassPathResource;
import org.springframework.core.io.Resource;

import com.itextpdf.io.font.PdfEncodings;
import com.itextpdf.io.image.ImageData;
import com.itextpdf.io.image.ImageDataFactory;
import com.itextpdf.kernel.font.PdfFont;
import com.itextpdf.kernel.font.PdfFontFactory;
import com.itextpdf.kernel.geom.PageSize;
import com.itextpdf.kernel.pdf.PdfDocument;
import com.itextpdf.kernel.pdf.PdfWriter;
import com.itextpdf.layout.Document;
import com.itextpdf.layout.element.Cell;
import com.itextpdf.layout.element.Image;
import com.itextpdf.layout.element.Paragraph;
import com.itextpdf.layout.element.Table;
import com.itextpdf.layout.property.HorizontalAlignment;
import com.itextpdf.layout.property.TextAlignment;
import com.itextpdf.layout.property.UnitValue;

public class PDFService {

   public void getPDFbyte() throws IOException {
       createPdf();
   }

   private void createPdf() throws IOException {
       PdfDocument pdfDoc = new PdfDocument(new PdfWriter("D://test.pdf"));
       Document document = new Document(pdfDoc,new PageSize(PageSize.A4));
       document.setMargins(24, 20, 0, 20);

       Resource resource = new ClassPathResource("generator.properties");
       Resource fontResource = new ClassPathResource("static/MSYH.ttf");
       InputStream inputStream = fontResource.getInputStream();
       PdfFont font = PdfFontFactory.createFont(IOUtils.toByteArray(inputStream),PdfEncodings.IDENTITY_H,false);

       Resource fontResurce2 = new ClassPathResource("static/MSYHBold.ttf");
       InputStream inputStream2 = fontResurce2.getInputStream();
       PdfFont fontBold = PdfFontFactory.createFont(IOUtils.toByteArray(inputStream2),PdfEncodings.IDENTITY_H,false);

       Cell cell;
       Paragraph p;
       Image image;

       p = new Paragraph("麦兜响当当");
       p.setTextAlignment(TextAlignment.CENTER);
       p.setFont(fontBold);
       p.setFontSize(12f);
       document.add(p);

       Table table = new Table(1);
       table.setWidth(new UnitValue(UnitValue.PERCENT,100f));

       //加载头像图片
       try {
       Resource imageResource = new ClassPathResource("static/maidou.jpg");
       InputStream imageInputStream = imageResource.getInputStream();
       ImageData imageData = ImageDataFactory.create(IOUtils.toByteArray(imageInputStream));
       image = new Image(imageData);
       image.setHorizontalAlignment(HorizontalAlignment.CENTER);
       image.setMaxWidth(120f);
       image.setMaxHeight(120f);
       cell = new Cell();
       cell.setBorder(null);
       cell.add(image);
       cell.setPaddingTop(16f);
       cell.setPaddingBottom(16f);
       table.addCell(cell);

       cell = new Cell();
       p = new Paragraph("姓名：麦兜");
       p.setTextAlignment(TextAlignment.LEFT);
       p.setFont(fontBold);
       p.setFontSize(12f);
       cell.setBorder(null);
       cell.add(p);
       table.addCell(cell);

       cell = new Cell();
       p = new Paragraph("经典台词:");
       p.setTextAlignment(TextAlignment.LEFT);
       p.setFont(fontBold);
       p.setFontSize(12f);
       cell.setBorder(null);
       cell.add(p);
       table.addCell(cell);

       cell = new Cell();
       p = new Paragraph("1.我最喜欢吃鸡，我妈妈最喜欢吃鸡，我最喜欢和我最喜欢的妈妈一起吃妈妈跟我最喜欢的快快鸡。");
       p.setTextAlignment(TextAlignment.LEFT);
       p.setFont(font);
       p.setFontSize(10f);
       cell.setBorder(null);
       cell.add(p);
       table.addCell(cell);

       cell = new Cell();
       p = new Paragraph("2.麦兜：啊，阿MAY呀，你看，偶默写拿了个A啊～～\r\n" +
               " 阿MAY：A你个头啊，你看看，是H啊，A和H差一点点的！！\r\n" +
               " 麦兜：啊，原来我差一点点就拿A！！");
       p.setTextAlignment(TextAlignment.LEFT);
       p.setFont(font);
       p.setFontSize(10f);
       cell.setBorder(null);
       cell.add(p);
       table.addCell(cell);

       cell = new Cell();
       p = new Paragraph("3.我希望可以拉屎\r\n" +
               " 老师继续唱歌\r\n" +
               " 我希望我可以很快\r\n" +
               " 写对那些生字\r\n" +
               " 不用那块橡皮\r\n" +
               " 我希望我争气\r\n" +
               " 妈妈不用挤眼泪\r\n" +
               " 不用有更年期\r\n" +
               " 我希望得到A\r\n" +
               "不会差一丁点\r\n" +
               " 如果我争气\r\n" +
               " 比屁股还争气\r\n" +
               " 如果妈妈开心\r\n" +
               " 我愿意...\r\n" +
               "唔...\r\n" +
               "我愿意以后再也不吃我最喜欢吃的鸡！");
       p.setFont(font);
       p.setFontSize(10f);
       cell.setBorder(null);
       cell.add(p);
       table.addCell(cell);

       cell = new Cell();
       p = new Paragraph("评论：");
       p.setFont(fontBold);
       p.setFontSize(12f);
       cell.setBorder(null);
       cell.add(p);
       table.addCell(cell);

       cell = new Cell();
       p = new Paragraph("麦兜他不是低能，他不过是善良");
       p.setTextAlignment(TextAlignment.LEFT);
       p.setFont(font);
       p.setFontSize(10f);
       cell.setBorder(null);
       cell.add(p);
       table.addCell(cell);

       document.add(table);
       }catch(Exception e) {
           e.printStackTrace();
       }
       document.close();
   }
}

测试

@RunWith(SpringRunner.class)
@SpringBootTest
public class ExportpdfdemoApplicationTests {

   @Test
   public void contextLoads() {
       PDFService pdfServices = new PDFService();
       try {
           pdfServices.getPDFbyte();
       } catch (IOException e) {
           // TODO Auto-generated catch block
           e.printStackTrace();
       }
   }

}

导出效果

spring boot itext 导出pdf

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