如何使用ProcessBuilder打印PDF

Question

我的问题是，当我执行我的代码时， AcroRd32.exe 进程会打开，因此它似乎可以工作，但是没有打印任何内容，代码永远不会结束。它似乎阻挡了p.waitFor()。

这是我的代码：

import java.io.BufferedReader;
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.util.Map;
import java.util.Map.Entry;

class AfficheurFlux implements Runnable {

    private final InputStream inputStream;

    AfficheurFlux(InputStream inputStream) {
        this.inputStream = inputStream;
    }

    private BufferedReader getBufferedReader(InputStream is) {
        return new BufferedReader(new InputStreamReader(is));
    }

    @Override
    public void run() {
        BufferedReader br = getBufferedReader(inputStream);
        String ligne = "";
        try {
            while ((ligne = br.readLine()) != null) {
                System.out.println(ligne);
            }
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}

public class CustomPrintReport extends BaseAction   {

    private PropertyList props;
    private String location;

    @Override
    public void processAction(PropertyList properties) throws SapphireException {
        Logger.logInfo("Method CustomPrintReport START");

        props = properties;

// Generate the pdf file to print
        String file = generateReportToFile();

        printFileToPrinter(file);

        cleanTemporaryFile(file);

        Logger.logInfo("Method CustomPrintReport END");
    }



private void printFileToPrinter(String file) throws SapphireException {
    Logger.logInfo("Method printFileToPrinter START");

    String printer = props.getProperty("addressid");


try
             {


 /* Remark : location = C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroRd32.exe */

             List<String> params = java.util.Arrays.asList(location, "\\t", file, printer);

             ProcessBuilder pb = new ProcessBuilder(params);

             Process p = pb.start();


             AfficheurFlux  fluxSortie = new AfficheurFlux (p.getInputStream());
             AfficheurFlux  fluxErreur = new AfficheurFlux (p.getErrorStream());

                new Thread(fluxSortie).start();
                new Thread(fluxErreur).start();

                p.waitFor();

            } catch (IOException e) {
                e.printStackTrace();
            } catch (InterruptedException e) {
                e.printStackTrace();
            }

        Logger.logInfo("Method printFileToPrinter END");
    }

}

编辑：

我也试过这个：

location = C：\ Program Files（x86）\ Adob​​e \ Acrobat Reader DC \ Reader and command = AcroRd32.exe。但有了这个，我得到错误＆＃34;无法运行程序＆＃34; AcroRd32.exe＆＃34; （在目录＆＃34; C：\ Program Files（x86）\ Adob​​e \ Acrobat Reader DC \ Reader＆＃34;）：CreateProcess error = 2，找不到文件;＆＃34;。

         List<String> params = java.util.Arrays.asList(command, "/t", file, printer);

         ProcessBuilder pb = new ProcessBuilder(params);
         pb.directory(new File(location));
         Process p = pb.start();

EDIT2：我也试过这个

String[] params = {location+"\\"+command, "/t", file, printer};
Process p = Runtime.getRuntime().exec(params);

或

Process p = Runtime.getRuntime().exec(command);

with command =＆＃34; C：\ Program Files（x86）\ Adob​​e \ Acrobat Reader DC \ Reader \ AcroRd32.exe＆＃34; / t＆＃34; C：\ Windows \ TEMP \ 1528790402183.pdf＆＃34; ＆＃34; NPI10F21A（HP LaserJet M203dn）＆＃34;。 如果我直接在cmd提示符中执行此命令，则会打印pdf。