作者:无语我去_296 | 来源:互联网 | 2023-01-28 21:53
我正在编写代码将SVG转换为PNG:
package com.example;
import java.io.*;
import java.nio.file.Paths;
import org.apache.batik.transcoder.image.PNGTranscoder;
import org.apache.batik.transcoder.SVGAbstractTranscoder;
import org.apache.batik.transcoder.TranscoderInput;
import org.apache.batik.transcoder.TranscoderOutput;
public class Main {
public static void main(String [] args) throws Exception {
// read the input SVG document into TranscoderInput
String svgURI = Paths.get(args[0]).toUri().toURL().toString();
TranscoderInput input = new TranscoderInput(svgURI);
// define OutputStream to PNG Image and attach to TranscoderOutput
OutputStream ostream = new FileOutputStream("out.png");
TranscoderOutput output = new TranscoderOutput(ostream);
// create a JPEG transcoder
PNGTranscoder t = new PNGTranscoder();
// set the transcoding hints
t.addTranscodingHint(SVGAbstractTranscoder.KEY_HEIGHT, new Float(600));
t.addTranscodingHint(SVGAbstractTranscoder.KEY_WIDTH, new Float(600));
// convert and write output
t.transcode(input, output);
// flush and close the stream then exit
ostream.flush();
ostream.close();
}
}
我使用各种SVG执行以下异常:
Exception in thread "main" org.apache.batik.transcoder.TranscoderException: null
Enclosed Exception:
Could not write PNG file because no WriteAdapter is availble
at org.apache.batik.transcoder.image.ImageTranscoder.transcode(ImageTranscoder.java:132)
at org.apache.batik.transcoder.XMLAbstractTranscoder.transcode(XMLAbstractTranscoder.java:142)
at org.apache.batik.transcoder.SVGAbstractTranscoder.transcode(SVGAbstractTranscoder.java:156)
at com.example.Main.main(Main.java:26)
蜡染版(由Maven报道):
version=1.9
groupId=org.apache.xmlgraphics
artifactId=batik-transcoder
我和Batik 1.7有同样的错误.
建议?
1> Al Pacifico..:
Peter Coppens在xmlgraphics-batik-users邮件列表中解决了这个问题.问题是Batik 1.9的Maven存储库缺少一个依赖项,可以通过添加到pom.xml来解决:
org.apache.xmlgraphics
batik-codec
1.9
隐藏的异常消失了,代码按照预期的功能添加.据报道这是Batk 1.7的一个错误(https://bz.apache.org/bugzilla/show_bug.cgi?id=44682).