[FOP] Erreur lors de l'appel new Driver();
Bonjour à tous,
Je cherche à créer un fichier PDF à l'aide de FOP et j'obtiens le message suivant lorsque l'appli essaye d'executer la ligne Driver dr = new Driver();
Citation:
java.lang.NullPointerException
at org.apache.fop.apps.Service.providers(Driver.java:597)
at org.apache.fop.apps.Driver.setupDefaultMappings(Driver.java:319)
at org.apache.fop.apps.Driver.<init>(Driver.java:222)
at org.apache.fop.apps.Driver.<init>(Driver.java:226)
at src.ExampleFO2PDF.convertFO2PDF(ExampleFO2PDF.java:34)
at src.ExampleFO2PDF.main(ExampleFO2PDF.java:84)
le code source que j'utilise est celui fournit en standard dans le package fop version 0.20.5. j'utilise Eclipse 3.2 associé à webtools 1.5 et la JDK 1.5.0.08.
J'ai essayé avec d'autre version d'eclipse et de la jdk mais toujours le même souci.
quelqu'un à t'il deja eu cette erreur, et si oui, comment l'avez vous résolu ?
source :
Code:
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
| package embedding;
//Java
import java.io.File;
import java.io.IOException;
import java.io.OutputStream;
//JAXP
import javax.xml.transform.Transformer;
import javax.xml.transform.TransformerFactory;
import javax.xml.transform.TransformerException;
import javax.xml.transform.Source;
import javax.xml.transform.Result;
import javax.xml.transform.stream.StreamSource;
import javax.xml.transform.sax.SAXResult;
//Avalon
import org.apache.avalon.framework.ExceptionUtil;
import org.apache.avalon.framework.logger.ConsoleLogger;
import org.apache.avalon.framework.logger.Logger;
//FOP
import org.apache.fop.apps.Driver;
import org.apache.fop.apps.FOPException;
import org.apache.fop.messaging.MessageHandler;
/**
* This class demonstrates the conversion of an XML file to PDF using
* JAXP (XSLT) and FOP (XSL:FO).
*/
public class ExampleXML2PDF {
public void convertXML2PDF(File xml, File xslt, File pdf)
throws IOException, FOPException, TransformerException {
//Construct driver
Driver driver = new Driver(); // ERREUR !!!!
//Setup logger
Logger logger = new ConsoleLogger(ConsoleLogger.LEVEL_INFO);
driver.setLogger(logger);
MessageHandler.setScreenLogger(logger);
//Setup Renderer (output format)
driver.setRenderer(Driver.RENDER_PDF);
//Setup output
OutputStream out = new java.io.FileOutputStream(pdf);
try {
driver.setOutputStream(out);
//Setup XSLT
TransformerFactory factory = TransformerFactory.newInstance();
Transformer transformer = factory.newTransformer(new StreamSource(xslt));
//Setup input for XSLT transformation
Source src = new StreamSource(xml);
//Resulting SAX events (the generated FO) must be piped through to FOP
Result res = new SAXResult(driver.getContentHandler());
//Start XSLT transformation and FOP processing
transformer.transform(src, res);
} finally {
out.close();
}
}
public static void main(String[] args) {
try {
System.out.println("FOP ExampleXML2PDF\n");
System.out.println("Preparing...");
//Setup directories
File baseDir = new File(".");
File outDir = new File(baseDir, "out");
outDir.mkdirs();
//Setup input and output files
File xmlfile = new File(baseDir, "xml/xml/projectteam.xml");
File xsltfile = new File(baseDir, "xml/xslt/projectteam2FO.xsl");
File pdffile = new File(outDir, "ResultXML2PDF.pdf");
System.out.println("Input: XML (" + xmlfile + ")");
System.out.println("Stylesheet: " + xsltfile);
System.out.println("Output: PDF (" + pdffile + ")");
System.out.println();
System.out.println("Transforming...");
ExampleXML2PDF app = new ExampleXML2PDF();
app.convertXML2PDF(xmlfile, xsltfile, pdffile);
System.out.println("Success!");
} catch (Exception e) {
System.err.println(ExceptionUtil.printStackTrace(e));
System.exit(-1);
}
}
} |
