我将如何从 Java 程序打印文本？(爪哇)
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How would I go about printing text from a java program? (Java)
提问by Confiqure
I don't even know if this is possible and I highly doubt it is, but if you can, can you please tell me how? I just want to know how to print some text from a printer.
我什至不知道这是否可行，我非常怀疑它是否可行，但如果可以，请告诉我如何做？我只想知道如何从打印机打印一些文本。
Any thoughts?
有什么想法吗？
回答by Timothy Radonich
Here is something that is even easier.
这是更容易的事情。
import javax.swing.JTextPane;
import java.awt.print.PrinterException;
public class TestPrint {
public static void main(String[] args) throws PrinterException {
JTextPane textPane = new JTextPane();
textPane.setText("test text string - Hello World! Are you there?");
textPane.print();
}
}
Output: popup
输出：弹出
回答by RealHowTo
import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.io.InputStream;
import javax.print.Doc;
import javax.print.DocFlavor;
import javax.print.DocPrintJob;
import javax.print.PrintException;
import javax.print.PrintService;
import javax.print.PrintServiceLookup;
import javax.print.SimpleDoc;
import javax.print.attribute.HashPrintRequestAttributeSet;
import javax.print.attribute.PrintRequestAttributeSet;
import javax.print.attribute.standard.Copies;
import javax.print.event.PrintJobAdapter;
import javax.print.event.PrintJobEvent;
public class PrintText {
public static void main(String[] args) throws PrintException, IOException {
String defaultPrinter =
PrintServiceLookup.lookupDefaultPrintService().getName();
System.out.println("Default printer: " + defaultPrinter);
PrintService service = PrintServiceLookup.lookupDefaultPrintService();
// prints the famous hello world! plus a form feed
InputStream is = new ByteArrayInputStream("hello world!\f".getBytes("UTF8"));
PrintRequestAttributeSet pras = new HashPrintRequestAttributeSet();
pras.add(new Copies(1));
DocFlavor flavor = DocFlavor.INPUT_STREAM.AUTOSENSE;
Doc doc = new SimpleDoc(is, flavor, null);
DocPrintJob job = service.createPrintJob();
PrintJobWatcher pjw = new PrintJobWatcher(job);
job.print(doc, pras);
pjw.waitForDone();
is.close();
}
}
class PrintJobWatcher {
boolean done = false;
PrintJobWatcher(DocPrintJob job) {
job.addPrintJobListener(new PrintJobAdapter() {
public void printJobCanceled(PrintJobEvent pje) {
allDone();
}
public void printJobCompleted(PrintJobEvent pje) {
allDone();
}
public void printJobFailed(PrintJobEvent pje) {
allDone();
}
public void printJobNoMoreEvents(PrintJobEvent pje) {
allDone();
}
void allDone() {
synchronized (PrintJobWatcher.this) {
done = true;
System.out.println("Printing done ...");
PrintJobWatcher.this.notify();
}
}
});
}
public synchronized void waitForDone() {
try {
while (!done) {
wait();
}
} catch (InterruptedException e) {
}
}
}
回答by Tushar Chutani
What you can do is write to a file and then you can use Desktopclass to print it. for more infomation on desktop class go here
您可以做的是写入文件，然后您可以使用Desktop类来打印它。有关桌面课程的更多信息，请访问此处
here is the program
import java.awt.Desktop;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
public class abc {
public static void main(String[] args) throws IOException{
BufferedWriter out = new BufferedWriter(new FileWriter("1.txt"));
out.write("Hello this is a test");
out.flush();
out.close();
File ff = new File("1.txt");
Desktop desktop = Desktop.getDesktop();
desktop.print(ff);
}
}
}
回答by ziesemer
Following Man o War's and bmargulies' comments, take a look at the Java Tutorial Printing Lessonand the Java Print API.
按照 Man o War 和 bmargulies 的评论，查看Java 教程打印课程和Java Print API。
(Primarily posting this answer in an attempt to either get this question some additional attention / competitive answers, or at the least, to simply remove this from the growing list of unanswered questions.)
（主要是发布这个答案，试图让这个问题得到一些额外的关注/竞争性答案，或者至少，简单地从不断增长的未回答问题列表中删除它。）
