PDF自动打印-编程知识

最近接到用户提过来的需求，需要一个能够自动打印图纸的功能，经过几天的研究整出来个初版了的，分享出来给大家，希望能有帮助。
需求描述:

生产车间现场每天都有大量的图纸需要打印，一个一个打印太慢了，希望可以有个批量打印的功能。
分析：

我们的图纸是存在服务器上，都是pdf版本的，所以批量打印程序可以通过文件名称，然后程序自动将共享文件推送到打印机上打印，这样就可以实现自动化了，并且后续还可以根据情况进行扩展

代码：

初版的程序比较简单，使用的是springboot + spring shell 来实现，具体代码如下：

<!-- pom.xml 片段 -->
<!-- spring-boot-starter 版本是随意选的 -->
<parent><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-parent</artifactId><version>2.7.14</version>
</parent>
<dependencies><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter</artifactId></dependency><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-actuator</artifactId></dependency><!-- spring-shell 版本需要与 spring-boot-starter 匹配 --><dependency><groupId>org.springframework.shell</groupId><artifactId>spring-shell-starter</artifactId><version>2.1.11</version></dependency><dependency><groupId>org.projectlombok</groupId><artifactId>lombok</artifactId><version>1.18.26</version><optional>true</optional><scope>compile</scope></dependency><dependency><groupId>org.apache.pdfbox</groupId><artifactId>pdfbox</artifactId><version>2.0.26</version></dependency><dependency><groupId>cn.hutool</groupId><artifactId>hutool-all</artifactId><version>5.8.22</version></dependency></dependencies><build><finalName>DrawPrinter</finalName><plugins><plugin><groupId>org.springframework.boot</groupId><artifactId>spring-boot-maven-plugin</artifactId><version>2.5.4</version> <!-- 使用适合你的Spring Boot版本 --><executions><execution><goals><goal>repackage</goal></goals></execution></executions></plugin></plugins></build>

shell命令代码

package xxxx;import cn.hutool.core.util.StrUtil;
import com.higer.ipd.tools.drawprinter.commons.PdfPrinter;
import com.higer.ipd.tools.drawprinter.entity.DrawInfoEntity;
import com.higer.ipd.tools.drawprinter.service.IDrawInfoService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.shell.standard.ShellComponent;
import org.springframework.shell.standard.ShellMethod;import java.io.File;
import java.util.HashMap;
import java.util.List;@ShellComponent
public class CommonCommand {@Autowiredprivate IDrawInfoService drawInfoService;@ShellMethod(value = "打印消息",key="000",group = "test")public void printMessage(String message) {System.out.println(message);}@ShellMethod(value = "查看本地打印机",key="101",group = "print")public void showLocPrinter(){PdfPrinter.getLocalPrinter().keySet().forEach(System.out::println);}@ShellMethod(value="打印图纸",key="103",group = "print")public void printPdf(String printerName,String fileName,String pageSize){try {String result = PdfPrinter.print(new File(fileName), printerName, pageSize);if(StrUtil.isBlank(result)){System.out.println("打印成功！");}else{System.out.println(result);}} catch (Exception e) {e.printStackTrace();System.out.println("打印出错!");}}
}

上面开发了两个shell命令:“查看本地打印机"和"打印图纸”.

打印图纸代码片段如下：

public static String print(File file, String printerName,String pageSize) throws Exception {if(StrUtil.isBlank(printerName) || file == null || !file.exists()){return "未指定打印机或待文件不存在，请确认！";}// 1.根据打印机名称找到对应的打印机服务，Map<String, PrintService> printerMap = getLocalPrinter();PrintService printService = printerMap.get(printerName);if(printService == null){return "没有找到指定的打印机！";}// 2.加载pdf文件，并设置打印配置，打印try (PDDocument document = PDDocument.load(file)){PrinterJob printJob = PrinterJob.getPrinterJob();printJob.setJobName(file.getName());printJob.setPrintService(printService);PDFPrintable pdfPrintable = new PDFPrintable(document, Scaling.SCALE_TO_FIT);Book book = new Book();PageFormat pageFormat = new PageFormat();pageFormat.setOrientation(PageFormat.PORTRAIT);//纵向pageFormat.setPaper(getPaper(pageSize));//设置纸张book.append(pdfPrintable, pageFormat, document.getNumberOfPages());printJob.setPageable(book);printJob.setCopies(1);//设置打印份数HashPrintRequestAttributeSet pars = new HashPrintRequestAttributeSet();pars.add(Sides.ONE_SIDED); //设置单双页printJob.print(pars);}return "";
}