1. 导入maven依赖
<dependency>
<groupId>org.apache.pdfbox</groupId>
<artifactId>pdfbox</artifactId>
<version>2.0.6</version>
</dependency>
2. .yml文件中配置匹配打印机
file:
printerName: Brother DCP-L2550DW series Printer
3. 编写工具类
import lombok.extern.slf4j.Slf4j;
import org.apache.pdfbox.pdmodel.PDDocument;
import org.apache.pdfbox.printing.PDFPrintable;
import org.apache.pdfbox.printing.Scaling;
import javax.print.PrintService;
import javax.print.attribute.HashPrintRequestAttributeSet;
import javax.print.attribute.standard.Sides;
import java.awt.print.Book;
import java.awt.print.PageFormat;
import java.awt.print.Paper;
import java.awt.print.PrinterJob;
import java.io.File;
import java.io.IOException;
/**
* 类描述:TODO
* 打印机工具类
* @author HBO
* @date 2022-12-02 13:59
**/
@Slf4j
public class PrintUtlis {
public static void PDFprint(File file, String printerName) throws Exception {
PDDocument document = null;
try {
document = PDDocument.load(file);
PrinterJob printJob = PrinterJob.getPrinterJob();
printJob.setJobName(file.getName());
if (printerName != null) {
// 查找并设置打印机
//获得本台电脑连接的所有打印机
PrintService[] printServices = PrinterJob.lookupPrintServices();
if (printServices == null || printServices.length == 0) {
log.info("打印失败,未找到可用打印机,请检查。");
return;
}
PrintService printService = null;
//匹配指定打印机
for (int i = 0; i < printServices.length; i++) {
if (printServices[i].getName().contains(printerName)) {
System.out.println(printServices[i].getName());
printService = printServices[i];
break;
}
}
if (printService != null) {
printJob.setPrintService(printService);
} else {
log.info("打印失败,未找到名称为" + printerName + "的打印机,请检查。");
return;
}
}
//设置纸张及缩放
PDFPrintable pdfPrintable = new PDFPrintable(document, Scaling.ACTUAL_SIZE);
//设置多页打印
Book book = new Book();
PageFormat pageFormat = new PageFormat();
//设置打印方向
pageFormat.setOrientation(PageFormat.PORTRAIT);//纵向
pageFormat.setPaper(getPaper());//设置纸张
book.append(pdfPrintable, pageFormat, document.getNumberOfPages());
printJob.setPageable(book);
printJob.setCopies(1);//设置打印份数
//添加打印属性
HashPrintRequestAttributeSet pars = new HashPrintRequestAttributeSet();
pars.add(Sides.DUPLEX); //设置单双页
printJob.print(pars);
} finally {
if (document != null) {
try {
document.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
}
public static Paper getPaper() {
Paper paper = new Paper();
// 默认为A4纸张,对应像素宽和高分别为 595, 842
int width = 595;
int height = 842;
// 设置边距,单位是像素,10mm边距,对应 28px
int marginLeft = 10;
int marginRight = 0;
int marginTop = 10;
int marginBottom = 0;
paper.setSize(width, height);
// 下面一行代码,解决了打印内容为空的问题
paper.setImageableArea(marginLeft, marginRight, width - (marginLeft + marginRight), height - (marginTop + marginBottom));
return paper;
}
}
4.控制类设置调用
//连接打印机打印文件
try {
PrintUtlis.PDFprint(new File(s1), printerName);
} catch (Exception e) {
return AjaxResult.error("打印失败");
}
5.效果图