首先放一个自己写的pdfUtil，小伙伴们可以直接拷到项目里，没有代码侵染
package com.cpicdg.util.pdf;
import com.itextpdf.io.font.PdfEncodings;
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.*;
import com.itextpdf.layout.property.TextAlignment;
import com.itextpdf.layout.property.UnitValue;
import org.springframework.util.ResourceUtils;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.net.MalformedURLException;/*** @author zyy* @program secl* @description pdf工具类* @date 2020-10-12 16:52**/public class PdfUtil {/*** 功能描述 构建文档对象** @param filePath 生成的pdf路径* @param pageSize pdf纸张大小* @return com.itextpdf.layout.Document* @date 2020/10/12 16:57*/public static Document generatorDoc(String filePath, PageSize pageSize) throws FileNotFoundException {PdfDocument pdfDoc = new PdfDocument(new PdfWriter(filePath));return new Document(pdfDoc, pageSize);/** 构建完文档对象后，可以设置文档的标题等* .setTitle等** */}/*** 功能描述 构建Table表格** @param width 表格每一个列的宽度，支持多个参数，几个参数代表有几列* @return com.itextpdf.layout.element.Table* @date 2020/10/12 17:11*/public static Table generatorTable(float... width) {//构建表格以100%的宽度return new Table(width).setWidth(UnitValue.createPercentValue(100));}/*** 功能描述 构建某一行的数据** @param table 要构建的数据所处的行* @param data 要构建的数据* @return void* @date 2020/10/13 9:40*/public static void generatorRow(Table table, String data) {Cell cell = new Cell();cell.add(new Paragraph(data).setTextAlignment(TextAlignment.CENTER));table.addCell(cell);}public static void generatorRow(Table table, String data, int rowSpan, int colSpan) {Cell cell = new Cell(rowSpan, colSpan);cell.add(new Paragraph(data).setTextAlignment(TextAlignment.CENTER));table.addCell(cell);}/*** 功能描述 构建图片对象** @param path 图片路径* @return com.itextpdf.layout.element.Image* @date 2020/10/12 17:23*/public static Image generatorImage(String path) throws MalformedURLException {return new Image(ImageDataFactory.create(path));}/*** 功能描述 构建字体** @return com.itextpdf.kernel.font.PdfFont* @date 2020/10/12 16:59*/public static PdfFont generatorFont() throws IOException {//中文字体String resourcePath = ResourceUtils.getURL("classpath:static").getPath();String path = resourcePath + "/font/simhei.ttf";//bfChinese = BaseFont.createFont(resourcePath.substring(0, resourcePath.indexOf("classes") + 7) + "/static/font/simhei.ttf", BaseFont.IDENTITY_H, BaseFont.NOT_EMBEDDED);return PdfFontFactory.createFont(path, PdfEncodings.IDENTITY_H, true);//return PdfFontFactory.createFont("STSongStd-Light", "UniGB-UCS2-H", false);}}
具体用法 ,我这里是预览所以直接new PdfWriter(response.getOutputStream());如果要下载直接在上方添加
String fileName = "XXXX";response.setHeader("Content-Disposition", "attachment; filename="+ new String(fileName.getBytes("gb2312"), "8859_1") + ".pdf"); // (1)生成document,document可以理解为五子棋的棋盘，棋盘固定后，往上面落子PdfWriter pdfWriter = new PdfWriter(response.getOutputStream());PdfDocument pdfDoc = new PdfDocument(pdfWriter);Document document = new Document(pdfDoc, PageSize.A4);// 设置字体document.setFont(PdfUtil.generatorFont());// 添加图片，这里我最上面添加两个图片用来做右上角logo和左上角logo// (2)获取图片对象String staticPath = ResourceUtils.getURL("classpath:static").getPath();// (2.1)添加左侧logoImage logoLeft = PdfUtil.generatorImage(staticPath + "/images/cpic_logo_left.png");// (2.1.1)缩放图片logoLeft.scaleToFit(150, 80);// (2.1.2)图片位置logoLeft.setFixedPosition(40, 793);// (2.1.3)设置图片document.add(logoLeft);// (2.2)添加右侧logoImage logoRight = PdfUtil.generatorImage(staticPath +"/images/cpic_logo_right.png");logoLeft.scaleToFit(200, 35);logoRight.setFixedPosition(290, 793);document.add(logoRight);// (3)设置标题// 设置第一个标题,标题在logo后面添加Paragraph firstTitle = new Paragraph("保险事故线上查勘联络单");// (3.1)设置标题与图标之间的间距firstTitle.setMarginTop(25);// (3.2)设置字体大小firstTitle.setFontSize(23);firstTitle.setTextAlignment(TextAlignment.CENTER);document.add(firstTitle);// (4)构建tableTable table = PdfUtil.generatorTable(80, 150, 150, 150, 150);// (4.1)设置table字体table.setFont(PdfUtil.generatorFont());table.setMaxWidth(530);// (5) 生成cell,也就是table中的每个格子的内容// (5.1)第一行PdfUtil.generatorRow(table, "出险时间");document.add(table);document.close(); public static void generatorRow(Table table, String data) {Cell cell = new Cell();cell.add(new Paragraph(data).setTextAlignment(TextAlignment.CENTER));table.addCell(cell);}具体不懂可以下面评论，具体交流~