schreiben die Ausgabe eines Programms in eine Datei

Question

Ich habe ein Programm geschrieben, um die PDF in Text zu analysieren. Ich bekomme die Ausgabe in der Konsole, aber ich kann sie nicht in eine Datei schreiben. Dies ist der Code, den ich getan habe:

public class PDFTextParser { 

public static void main(String args[]) throws IOException { 
    PDFTextStripper pdfStripper = null; 
    COSDocument cosDoc = null; 
    try { 


     File file = new File("1.pdf"); 
     PDDocument pdDoc = PDDocument.load(file); 
     pdfStripper = new PDFTextStripper(); 
     String parsedText = pdfStripper.getText(pdDoc); 
     System.out.println(parsedText); 
     FileWriter out = new FileWriter("output.txt"); 
     BufferedReader in = new BufferedReader(new InputStreamReader(System.in)); 
     String line = in.readLine(); 
     while (line!= null) { 

       out.append(line); 
       out.append("\n"); 
       } 
     out.close(); 
    }catch (IOException e) { 
     e.printStackTrace();} 
    } 
} 

der Ausgang ist:

Apr 07, 2016 2:04:10 PM org.apache.pdfbox.pdfparser.COSParser  parseFileObject 
WARNING: Object (6:0) at offset 1013093 does not end with 'endobj' but with '7' 
Apr 07, 2016 2:04:10 PM org.apache.pdfbox.pdfparser.COSParser parseFileObject 
WARNING: Object (7:0) at offset 1013211 does not end with 'endobj' but with '483' 
Apr 07, 2016 2:04:10 PM org.apache.pdfbox.pdfparser.COSParser parseFileObject 
WARNING: Object (9:0) at offset 1020280 does not end with 'endobj' but with '10' 
Apr 07, 2016 2:04:10 PM org.apache.pdfbox.pdfparser.COSParser parseFileObject 
WARNING: Object (10:0) at offset 1020396 does not end with 'endobj' but with '15' 
Apr 07, 2016 2:04:10 PM org.apache.pdfbox.pdfparser.COSParser parseFileObject 
WARNING: Object (15:0) at offset 1020519 does not end with 'endobj' but with '16' 
Apr 07, 2016 2:04:10 PM org.apache.pdfbox.pdfparser.COSParser parseFileObject 
WARNING: Object (16:0) at offset 1020640 does not end with 'endobj' but with '17' 
Apr 07, 2016 2:04:10 PM org.apache.pdfbox.pdfparser.COSParser parseFileObject 
WARNING: Object (17:0) at offset 1020756 does not end with 'endobj' but with '18' 
Apr 07, 2016 2:04:10 PM org.apache.pdfbox.pdfparser.COSParser parseFileObject 
WARNING: Object (18:0) at offset 1020874 does not end with 'endobj' but with '19' 
Apr 07, 2016 2:04:10 PM org.apache.pdfbox.pdfparser.COSParser parseFileObject 
WARNING: Object (19:0) at offset 1020993 does not end with 'endobj' but with '24' 
Apr 07, 2016 2:04:10 PM org.apache.pdfbox.pdfparser.COSParser parseFileObject 
WARNING: Object (24:0) at offset 1021111 does not end with 'endobj' but with '25' 
Apr 07, 2016 2:04:10 PM org.apache.pdfbox.pdfparser.COSParser parseFileObject 
WARNING: Object (25:0) at offset 1021228 does not end with 'endobj' but with '26' 
Apr 07, 2016 2:04:10 PM org.apache.pdfbox.pdfparser.COSParser parseFileObject 
WARNING: Object (26:0) at offset 1021350 does not end with 'endobj' but with '27' 
Apr 07, 2016 2:04:10 PM org.apache.pdfbox.pdfparser.COSParser parseFileObject 
WARNING: Object (27:0) at offset 1021469 does not end with 'endobj' but with '28' 
Apr 07, 2016 2:04:10 PM org.apache.pdfbox.pdfparser.COSParser parseFileObject 
WARNING: Object (28:0) at offset 1021589 does not end with 'endobj' but with '489' 
Apr 07, 2016 2:04:10 PM org.apache.pdfbox.pdfparser.COSParser parseFileObject 
WARNING: Object (458:0) at offset 1026684 does not end with 'endobj' but with '463' 
Apr 07, 2016 2:04:10 PM org.apache.pdfbox.pdfparser.COSParser parseFileObject 
WARNING: Object (463:0) at offset 1026809 does not end with 'endobj' but with '464' 
Apr 07, 2016 2:04:10 PM org.apache.pdfbox.pdfparser.COSParser parseFileObject 
WARNING: Object (464:0) at offset 1026932 does not end with 'endobj' but with '465' 
Apr 07, 2016 2:04:10 PM org.apache.pdfbox.pdfparser.COSParser parseFileObject 
WARNING: Object (465:0) at offset 1027050 does not end with 'endobj' but with '466' 
Apr 07, 2016 2:04:10 PM org.apache.pdfbox.pdfparser.COSParser parseFileObject 
WARNING: Object (466:0) at offset 1027170 does not end with 'endobj' but with '495' 

und die geparsten pdf Text wird in der console..but erscheinen i eine leere Datei als Ausgabe erhalten

Answer 1

helfen Sie haben bereits den Text aus dem PDF bekommen, nur schreiben Sie es in die Datei, der Rest des Codes versucht, die Eingabe von Benutzer (ex, Tastatur) Sie don ' t brauchen Sie es, verwenden Sie einfach den folgenden Code:

String parsedText = pdfStripper.getText(pdDoc); 
System.out.println(parsedText); 
FileWriter out = new FileWriter("output.txt"); 
out.append(parsedText); 
out.close(); 

//no need for this code, it reads input from user (using keyboard) 
/* 
BufferedReader in = new BufferedReader(new InputStreamReader(System.in)); 
String line = in.readLine(); 
while (line!= null) { 

     out.append(line); 
     out.append("\n"); 
     } 
out.close(); 
*/ 

Answer 2

Haben Sie diesen Beitrag gelesen? system-out-to-a-file-in-java

Allerdings Ich mag seine erste Antwort

java -jar myjar.jar > output.txt 

In Ihrem Fall würde

java -cp <classpath>/PDFTextParser > output.txt 

Somrthing wie werden Hoffen, dass es