Java 无法使用蜡染光栅化器将SVG图像转换为PNG
我试图使用batik光栅化器(batik transcoder 1.8)库将图像从SVG转换为PNG,但即使是简单的转换也会引发一个异常。这是一个不起作用的示例代码:Java 无法使用蜡染光栅化器将SVG图像转换为PNG,java,xml,svg,batik,Java,Xml,Svg,Batik,我试图使用batik光栅化器(batik transcoder 1.8)库将图像从SVG转换为PNG,但即使是简单的转换也会引发一个异常。这是一个不起作用的示例代码: private static void convertSVGToImage() throws TranscoderException, IOException { String svg_URI_input = Paths.get("caution.svg").toUri().toURL().toString();
private static void convertSVGToImage() throws TranscoderException, IOException {
String svg_URI_input = Paths.get("caution.svg").toUri().toURL().toString();
TranscoderInput input_svg_image = new TranscoderInput(svg_URI_input);
OutputStream png_ostream = new FileOutputStream("caution.png");
TranscoderOutput output_png_image = new TranscoderOutput(png_ostream);
PNGTranscoder my_converter = new PNGTranscoder();
my_converter.transcode(input_svg_image, output_png_image);
png_ostream.flush();
png_ostream.close();
}
其中caution.svg是该文件:
stacktrace是:
org.xml.sax.SAXNotRecognizedException: unrecognized feature http://xml.org/sax/features/external-general-entities
at org.gjt.xpp.sax2.Driver.setFeature(Driver.java:178)
at org.gjt.xpp.jaxp11.SAXParserImpl.setFeatures(SAXParserImpl.java:149)
at org.gjt.xpp.jaxp11.SAXParserImpl.<init>(SAXParserImpl.java:132)
at org.gjt.xpp.jaxp11.SAXParserFactoryImpl.newSAXParserImpl(SAXParserFactoryImpl.java:114)
at org.gjt.xpp.jaxp11.SAXParserFactoryImpl.setFeature(SAXParserFactoryImpl.java:142)
at org.apache.batik.dom.util.SAXDocumentFactory.<clinit>(Unknown Source)
at org.apache.batik.transcoder.SVGAbstractTranscoder.createDocumentFactory(Unknown Source)
at org.apache.batik.transcoder.XMLAbstractTranscoder.transcode(Unknown Source)
at org.apache.batik.transcoder.SVGAbstractTranscoder.transcode(Unknown Source)
at br.com.supera.Main.convertSVGToImage(Main.java:45)
at br.com.supera.Main.main(Main.java:35)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:497)
at com.intellij.rt.execution.application.AppMain.main(AppMain.java:144)
Exception in thread "main" org.apache.batik.transcoder.TranscoderException: null
Enclosed Exception:
not supported setting property http://xml.org/sax/properties/lexical-handler
at org.apache.batik.transcoder.XMLAbstractTranscoder.transcode(Unknown Source)
at org.apache.batik.transcoder.SVGAbstractTranscoder.transcode(Unknown Source)
at br.com.supera.Main.convertSVGToImage(Main.java:45)
at br.com.supera.Main.main(Main.java:35)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:497)
at com.intellij.rt.execution.application.AppMain.main(AppMain.java:144)
org.xml.sax.SAXNotRecognizedException:无法识别的功能http://xml.org/sax/features/external-general-entities
位于org.gjt.xpp.sax2.Driver.setFeature(Driver.java:178)
位于org.gjt.xpp.jaxp11.SAXParserImpl.setFeatures(SAXParserImpl.java:149)
位于org.gjt.xpp.jaxp11.SAXParserImpl(SAXParserImpl.java:132)
位于org.gjt.xpp.jaxp11.saxparserfactorympl.newSAXParserImpl(saxparserfactorympl.java:114)
位于org.gjt.xpp.jaxp11.saxparserfactorympl.setFeature(saxparserfactorympl.java:142)
位于org.apache.batik.dom.util.SAXDocumentFactory。(未知来源)
位于org.apache.batik.transcoder.SVGAbstractTranscoder.createDocumentFactory(未知源)
位于org.apache.batik.transcoder.XMLAbstractTranscoder.transcode(未知源)
位于org.apache.batik.transcoder.SVGAbstractTranscoder.transcode(未知源)
位于br.com.supera.Main.convertSVGToImage(Main.java:45)
位于br.com.supera.Main.Main(Main.java:35)
在sun.reflect.NativeMethodAccessorImpl.invoke0(本机方法)处
位于sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
在sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)中
位于java.lang.reflect.Method.invoke(Method.java:497)
位于com.intellij.rt.execution.application.AppMain.main(AppMain.java:144)
线程“main”org.apache.batik.transcoder.TranscoderException中的异常:null
随函附上的例外情况:
不支持设置属性http://xml.org/sax/properties/lexical-handler
位于org.apache.batik.transcoder.XMLAbstractTranscoder.transcode(未知源)
位于org.apache.batik.transcoder.SVGAbstractTranscoder.transcode(未知源)
位于br.com.supera.Main.convertSVGToImage(Main.java:45)
位于br.com.supera.Main.Main(Main.java:35)
在sun.reflect.NativeMethodAccessorImpl.invoke0(本机方法)处
位于sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
在sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)中
位于java.lang.reflect.Method.invoke(Method.java:497)
位于com.intellij.rt.execution.application.AppMain.main(AppMain.java:144)
非常感谢您的帮助。我只是简单地用蜡染1.7.1解决了这个问题