我正在尝试将SVG图像转换为JPEG,如https://xmlgraphics.apache.org/batik/using/transcoder.html#createImage示例所示.这是代码:
public void saveAsjpeg() throws Exception {
// Create a JPEG transcoder
JPEGTranscoder t = new JPEGTranscoder();
// Set the transcoding hints.
t.addTranscodingHint(JPEGTranscoder.KEY_QUALITY, new Float(.8));
// Create the transcoder input.
String svgURI = new File(inputFilePath).toURL().toString();
TranscoderInput input = new TranscoderInput(svgURI);
// Create the transcoder output.
OutputStream ostream = new FileOutputStream(outputFilePath);
TranscoderOutput output = new TranscoderOutput(ostream);
// Save the image.
t.transcode(input, output);
// Flush and close the stream.
ostream.flush();
ostream.close();
System.exit(0);
}
下面是我的pom.xml.我正在尝试春季启动项目:
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.example</groupId>
<artifactId>demo</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>jar</packaging>
<name>demo</name>
<description>Demo project for Spring Boot</description>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>1.3.4.RELEASE</version>
<relativePath /> <!-- lookup parent from repository -->
</parent>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<java.version>1.8</java.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.apache.xmlgraphics</groupId>
<artifactId>batik-transcoder</artifactId>
<version>1.8</version>
</dependency>
<dependency>
<groupId>org.apache.xmlgraphics</groupId>
<artifactId>batik-codec</artifactId>
<version>1.8</version>
</dependency>
<dependency>
<groupId>org.apache.xmlgraphics</groupId>
<artifactId>batik-svgpp</artifactId>
<version>1.8</version>
</dependency>
<dependency>
<groupId>org.apache.xmlgraphics</groupId>
<artifactId>batik-rasterizer</artifactId>
<version>1.8</version>
</dependency>
<dependency>
<groupId>org.apache.xmlgraphics</groupId>
<artifactId>batik-squiggle</artifactId>
<version>1.8</version>
</dependency>
<dependency>
<groupId>org.apache.xmlgraphics</groupId>
<artifactId>xmlgraphics-commons</artifactId>
<version>2.1</version>
</dependency>
<dependency>
<groupId>org.apache.xmlgraphics</groupId>
<artifactId>batik-ttf2svg</artifactId>
<version>1.8</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-source-plugin</artifactId>
<executions>
<execution>
<id>attach-sources</id>
<goals>
<goal>jar</goal>
</goals>
</execution>
</executions>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-javadoc-plugin</artifactId>
<executions>
<execution>
<id>attach-javadocs</id>
<goals>
<goal>jar</goal>
</goals>
</execution>
</executions>
</plugin>
</plugins>
</build>
</project>
我得到以下异常:
org.apache.batik.transcoder.TranscoderException: null
Enclosed Exception:
null
at org.apache.batik.transcoder.image.ImageTranscoder.transcode(Unknown Source)
at org.apache.batik.transcoder.XMLAbstractTranscoder.transcode(Unknown Source)
at org.apache.batik.transcoder.SVGAbstractTranscoder.transcode(Unknown Source)
at SaveToJPEG.saveAsjpeg(SaveToJPEG.java:31)
at SaveToJPEG.main(SaveToJPEG.java:42)
我在这里有几个问题:
>为什么异常堆栈跟踪显示“未知来源”并且异常是如此无法提供信息?我在Google上搜索并了解如果罐子上没有附加源,那么例外可能没有信息.我已将插件代码放在pom中以添加源代码.但这不起作用.
>为了不将svg图像转换为jpeg,蜡染代码有什么问题?
解决方法:
我不知道是谁发布了这个神器,但它已经为我解决了这个问题
<dependency>
<groupId>fr.avianey.apache-xmlgraphics</groupId>
<artifactId>batik</artifactId>
<version>1.8</version>
</dependency>
这些类包含在此工件中
> org.apache.batik.ext.awt.image.codec.imageio.ImageIOPNGImageWriter
> org.apache.batik.ext.awt.image.codec.imageio.ImageIOTIFFImageWriter
> org.apache.batik.ext.awt.image.codec.imageio.ImageIOJPEGImageWriter