JasperReports中的内嵌base64图像进行蜡染SVG解析

问题描述

我一直在尝试使用JasperReports中的蜡染渲染器解析以下.svg文件（在“ Inkscape”上工作正常）（尽管我不知道这是否主要是蜡染问题）

我将Batik 1.13和JasperReports 6.13与“ net.sf.jasperreports.renderers.SimpleDataRenderer”一起使用。该渲染器使用蜡染。

当尝试使用base64图像渲染文件时，出现以下错误代码：

java.io.IOException：字节数组不是可识别的图像格式。在com.lowagie.text.Image.getInstance（未知来源）在net.sf.jasperreports.engine.export.JRPdfExporter $ InternalImageProcessor.processImageRetainShape（JRPdfExporter.java:1992）在net.sf.jasperreports.engine.export.JRPdfExporter $ InternalImageProcessor.process（JRPdfExporter.java:1787）在net.sf.jasperreports.engine.export.JRPdfExporter $ InternalImageProcessor.access $ 300（JRPdfExporter.java:1713）在net.sf.jasperreports.engine.export.JRPdfExporter.exportImage（JRPdfExporter.java:1653）在net.sf.jasperreports.engine.export.JRPdfExporter.exportElements（JRPdfExporter.java:1267）在net.sf.jasperreports.engine.export.JRPdfExporter.exportPage（JRPdfExporter.java:1210）在net.sf.jasperreports.engine.export.JRPdfExporter.exportReportToStream（JRPdfExporter.java:1074）在net.sf.jasperreports.engine.export.JRPdfExporter.exportReport（JRPdfExporter.java:691）在enco.sox2.reportmanager.ReportCommand.export（ReportCommand.java:192）在enco.sox2.reportmanager.ReportCommand.export（ReportCommand.java:159）在enco.sox2.reportmanager.ReportManager.generateReportToStream（ReportManager.java:175）在enco.sox2.cdo.server.reports.service.CdoReportService.generateReportToStream（CdoReportService.java:87）在enco.sox2.workspace.cdo.server.internal.CreateReportIndication.responding（CreateReportIndication.java:103）在org.eclipse.emf.cdo.server.internal.net4j.protocol.CDOServerIndicationWithMonitoring.responding（CDOServerIndicationWithMonitoring.java:177）在org.eclipse.net4j.signal.IndicationWithMonitoring.responding（IndicationWithMonitoring.java:93）在org.eclipse.net4j.signal.IndicationWithResponse.doExtendedOutput（IndicationWithResponse.java:106）在org.eclipse.net4j.signal.Signal.doOutput（Signal.java:346）在org.eclipse.net4j.signal.IndicationWithResponse.execute（IndicationWithResponse.java:75）在org.eclipse.net4j.signal.IndicationWithMonitoring.execute（IndicationWithMonitoring.java:66）在org.eclipse.net4j.signal.Signal.runSync（Signal.java:283）在org.eclipse.net4j.signal.Signal.run（Signal.java:162）在java.util.concurrent.ThreadPoolExecutor.runWorker（ThreadPoolExecutor.java:1142）在java.util.concurrent.ThreadPoolExecutor $ Worker.run（ThreadPoolExecutor.java:617）在java.lang.Thread.run（Thread.java:745） 18：01：22,388错误[ReportCommand]导出到java.io.ByteArrayOutputStream时发生错误 net.sf.jasperreports.engine.JRException：java.io.IOException：字节数组不是可识别的图像格式。在net.sf.jasperreports.engine.export.JRPdfExporter $ InternalImageProcessor.processImageRetainShape（JRPdfExporter.java:1997）在net.sf.jasperreports.engine.export.JRPdfExporter $ InternalImageProcessor.process（JRPdfExporter.java:1787）在net.sf.jasperreports.engine.export.JRPdfExporter $ InternalImageProcessor.access $ 300（JRPdfExporter.java:1713）在net.sf.jasperreports.engine.export.JRPdfExporter.exportImage（JRPdfExporter.java:1653）在net.sf.jasperreports.engine.export.JRPdfExporter.exportElements（JRPdfExporter.java:1267）在net.sf.jasperreports.engine.export.JRPdfExporter.exportPage（JRPdfExporter.java:1210）在net.sf.jasperreports.engine.export.JRPdfExporter.exportReportToStream（JRPdfExporter.java:1074）在net.sf.jasperreports.engine.export.JRPdfExporter.exportReport（JRPdfExporter.java:691）在enco.sox2.reportmanager.ReportCommand.export（ReportCommand.java:192）在enco.sox2.reportmanager.ReportCommand.export（ReportCommand.java:159）在enco.sox2.reportmanager.ReportManager.generateReportToStream（ReportManager.java:175）在enco.sox2.cdo.server.reports.service.CdoReportService.generateReportToStream（CdoReportService.java:87）在enco.sox2.workspace.cdo.server.internal.CreateReportIndication.responding（CreateReportIndication.java:103）在org.eclipse.emf.cdo.server.internal.net4j.protocol.CDOServerIndicationWithMonitoring.responding（CDOServerIndicationWithMonitoring.java:177）在org.eclipse.net4j.signal.IndicationWithMonitoring.responding（IndicationWithMonitoring.java:93）在org.eclipse.net4j.signal.IndicationWithResponse.doExtendedOutput（IndicationWithResponse.java:106）在org.eclipse.net4j.signal.Signal.doOutput（Signal.java:346）在org.eclipse.net4j.signal.IndicationWithResponse.execute（IndicationWithResponse.java:75）在org.eclipse.net4j.signal.IndicationWithMonitoring.execute（IndicationWithMonitoring.java:66）在org.eclipse.net4j.signal.Signal.runSync（Signal.java:283）在org.eclipse.net4j.signal.Signal.run（Signal.java:162）在java.util.concurrent.ThreadPoolExecutor.runWorker（ThreadPoolExecutor.java:1142）在java.util.concurrent.ThreadPoolExecutor $ Worker.run（ThreadPoolExecutor.java:617）在java.lang.Thread.run（Thread.java:745）原因：java.io.IOException：字节数组不是可识别的图像格式。在com.lowagie.text.Image.getInstance（未知来源）在net.sf.jasperreports.engine.export.JRPdfExporter $ InternalImageProcessor.processImageRetainShape（JRPdfExporter.java:1992） ...另外23个 [错误] net.sf.jasperreports.engine.JRException：java.io.IOException：字节数组不是可识别的图像格式。！ENTRY enco.sox2.cdo.server.reports 4 0 2020-08-14 18：01：22.390 ！MESSAGE net.sf.jasperreports.engine.JRException：java.io.IOException：字节数组不是可识别的图像格式。！堆栈0 enco.sox2.reportmanager.ReportException：net.sf.jasperreports.engine.JRException：java.io.IOException：字节数组不是可识别的图像格式。在enco.sox2.reportmanager.ReportCommand.export（ReportCommand.java:195）在enco.sox2.reportmanager.ReportCommand.export（ReportCommand.java:159）在enco.sox2.reportmanager.ReportManager.generateReportToStream（ReportManager.java:175）在enco.sox2.cdo.server.reports.service.CdoReportService.generateReportToStream（CdoReportService.java:87）在enco.sox2.workspace.cdo.server.internal.CreateReportIndication.responding（CreateReportIndication.java:103）在org.eclipse.emf.cdo.server.internal.net4j.protocol.CDOServerIndicationWithMonitoring.responding（CDOServerIndicationWithMonitoring.java:177）在org.eclipse.net4j.signal.IndicationWithMonitoring.responding（IndicationWithMonitoring.java:93）在org.eclipse.net4j.signal.IndicationWithResponse.doExtendedOutput（IndicationWithResponse.java:106）在org.eclipse.net4j.signal.Signal.doOutput（Signal.java:346）在org.eclipse.net4j.signal.IndicationWithResponse.execute（IndicationWithResponse.java:75）在org.eclipse.net4j.signal.IndicationWithMonitoring.execute（IndicationWithMonitoring.java:66）在org.eclipse.net4j.signal.Signal.runSync（Signal.java:283）在org.eclipse.net4j.signal.Signal.run（Signal.java:162）在java.util.concurrent.ThreadPoolExecutor.runWorker（ThreadPoolExecutor.java:1142）在java.util.concurrent.ThreadPoolExecutor $ Worker.run（ThreadPoolExecutor.java:617）在java.lang.Thread.run（Thread.java:745）造成原因：net.sf.jasperreports.engine.JRException：java.io.IOException：字节数组不是可识别的图像格式。在net.sf.jasperreports.engine.export.JRPdfExporter $ InternalImageProcessor.processImageRetainShape（JRPdfExporter.java:1997）在net.sf.jasperreports.engine.export.JRPdfExporter $ InternalImageProcessor.process（JRPdfExporter.java:1787）在net.sf.jasperreports.engine.export.JRPdfExporter $ InternalImageProcessor.access $ 300（JRPdfExporter.java:1713）在net.sf.jasperreports.engine.export.JRPdfExporter.exportImage（JRPdfExporter.java:1653）在net.sf.jasperreports.engine.export.JRPdfExporter.exportElements（JRPdfExporter.java:1267）在net.sf.jasperreports.engine.export.JRPdfExporter.exportPage（JRPdfExporter.java:1210）在net.sf.jasperreports.engine.export.JRPdfExporter.exportReportToStream（JRPdfExporter.java:1074）在net.sf.jasperreports.engine.export.JRPdfExporter.exportReport（JRPdfExporter.java:691）在enco.sox2.reportmanager.ReportCommand.export（ReportCommand.java:192） ...另外15个原因：java.io.IOException：字节数组不是可识别的图像格式。在com.lowagie.text.Image.getInstance（未知来源）在net.sf.jasperreports.engine.export.JRPdfExporter $ InternalImageProcessor.processImageRetainShape（JRPdfExporter.java:1992） ...还有23

.svg文件在这里供参考。

    <?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE svg PUBLIC '-//W3C//DTD SVG 1.0//EN'
          'http://www.w3.org/TR/2001/REC-SVG-20010904/DTD/svg10.dtd'>
<svg fill-opacity="1" xmlns:xlink="http://www.w3.org/1999/xlink" color-rendering="auto" color-interpolation="auto" text-rendering="auto" stroke="black" stroke-linecap="square" width="1000" stroke-miterlimit="10" shape-rendering="auto" stroke-opacity="1" fill="black" stroke-dasharray="none" font-weight="normal" stroke-width="1" height="385" xmlns="http://www.w3.org/2000/svg" font-family="&apos;Dialog&apos;" font-style="normal" stroke-linejoin="miter" font-size="12" stroke-dashoffset="0" image-rendering="auto"
><!--Generated by the Batik Graphics2D SVG Generator--><defs id="genericDefs"
  /><g
  ><defs id="defs1"
    ><clipPath clipPathUnits="userSpaceOnUse" id="clipPath1"
      ><path d="M659 58 L701 58 L701 91 L659 91 L659 58 Z"
      /></clipPath
      ><clipPath clipPathUnits="userSpaceOnUse" id="clipPath2"
      ><path d="M659 88 L701 88 L701 121 L659 121 L659 88 Z"
      /></clipPath
      ><clipPath clipPathUnits="userSpaceOnUse" id="clipPath3"
      ><path d="M319 88 L361 88 L361 91 L319 91 L319 88 Z"
      /></clipPath
      ><clipPath clipPathUnits="userSpaceOnUse" id="clipPath4"
      ><path d="M19 52 L321 52 L321 128 L19 128 L19 52 Z"
      /></clipPath
      ><clipPath clipPathUnits="userSpaceOnUse" id="clipPath5"
      ><path d="M24 57 L38 57 L38 89 L24 89 L24 57 Z"
      /></clipPath
      ><clipPath clipPathUnits="userSpaceOnUse" id="clipPath6"
      ><path d="M-1 -8 L9 -8 L9 24 L-1 24 L-1 -8 Z"
      /></clipPath
      ><clipPath clipPathUnits="userSpaceOnUse" id="clipPath7"
      ><path d="M-1 -8 L17 -8 L17 24 L-1 24 L-1 -8 Z"
      /></clipPath
      ><clipPath clipPathUnits="userSpaceOnUse" id="clipPath8"
      ><path d="M55 57 L289 57 L289 89 L55 89 L55 57 Z"
      /></clipPath
      ><clipPath clipPathUnits="userSpaceOnUse" id="clipPath9"
      ><path d="M298 57 L316 57 L316 89 L298 89 L298 57 Z"
      /></clipPath
      ><clipPath clipPathUnits="userSpaceOnUse" id="clipPath10"
      ><path d="M24 87 L316 87 L316 123 L24 123 L24 87 Z"
      /></clipPath
      ><clipPath clipPathUnits="userSpaceOnUse" id="clipPath11"
      ><path d="M26 89 L40 89 L40 121 L26 121 L26 89 Z"
      /></clipPath
      ><clipPath clipPathUnits="userSpaceOnUse" id="clipPath12"
      ><path d="M54 89 L297 89 L297 121 L54 121 L54 89 Z"
      /></clipPath
      ><clipPath clipPathUnits="userSpaceOnUse" id="clipPath13"
      ><path d="M699 39 L1001 39 L1001 81 L699 81 L699 39 Z"
      /></clipPath
      ><clipPath clipPathUnits="userSpaceOnUse" id="clipPath14"
      ><path d="M704 44 L718 44 L718 76 L704 76 L704 44 Z"
      /></clipPath
      ><clipPath clipPathUnits="userSpaceOnUse" id="clipPath15"
      ><path d="M735 44 L991 44 L991 76 L735 76 L735 44 Z"
      /></clipPath
      ><clipPath clipPathUnits="userSpaceOnUse" id="clipPath16"
      ><path d="M699 99 L1001 99 L1001 141 L699 141 L699 99 Z"
      /></clipPath
      ><clipPath clipPathUnits="userSpaceOnUse" id="clipPath17"
      ><path d="M704 104 L718 104 L718 136 L704 136 L704 104 Z"
      /></clipPath
      ><clipPath clipPathUnits="userSpaceOnUse" id="clipPath18"
      ><path d="M735 104 L985 104 L985 136 L735 136 L735 104 Z"
      /></clipPath
      ><clipPath clipPathUnits="userSpaceOnUse" id="clipPath19"
      ><path d="M359 69 L661 69 L661 111 L359 111 L359 69 Z"
      /></clipPath
      ><clipPath clipPathUnits="userSpaceOnUse" id="clipPath20"
      ><path d="M364 74 L378 74 L378 106 L364 106 L364 74 Z"
      /></clipPath
      ><clipPath clipPathUnits="userSpaceOnUse" id="clipPath21"
      ><path d="M395 74 L632 74 L632 106 L395 106 L395 74 Z"
      /></clipPath
      ><clipPath clipPathUnits="userSpaceOnUse" id="clipPath22"
      ><path d="M638 74 L656 74 L656 106 L638 106 L638 74 Z"
      /></clipPath
    ></defs
    ><g fill="silver" font-family="&apos;Segoe UI&apos;" stroke-linecap="butt" stroke="silver"
    ><line y2="59" fill="none" x1="660" clip-path="url(#clipPath1)" x2="699" y1="89"
      /><line y2="119" fill="none" x1="660" clip-path="url(#clipPath2)" x2="699" y1="89"
      /><line y2="89" fill="none" x1="320" clip-path="url(#clipPath3)" x2="359" y1="89"
      /><rect x="20" y="53" clip-path="url(#clipPath4)" fill="white" width="300" rx="4" ry="4" height="74" stroke="none"
      /><rect x="20" y="53" clip-path="url(#clipPath4)" fill="none" width="299" rx="4" ry="4" height="73" stroke="black"
      /><rect x="25" y="58" clip-path="url(#clipPath5)" fill="white" width="12" height="30" stroke="none"
      /><image x="0" y="0" transform="matrix(1,1,27,65)" clip-path="url(#clipPath6)" fill="white" width="8" xlink:href="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAgAAAAQCAYAAAArij59AAAAXklEQVR42mP8//8/
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      /><rect x="27" y="58" clip-path="url(#clipPath5)" fill="none" width="7" height="29" stroke="black"
      /><image x="0" y="0" transform="matrix(1,37,65)" clip-path="url(#clipPath7)" fill="black" width="16" xlink:href="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAACq0lEQVR42pWTXUhT
YRjH/+/Z2dnmx5riMKeVJUsoTcsSJENliWAXeWFU0EUgBEFREEVfN14UDEESpGAZ
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6DYVI7hUTQPzCqxYB2SFH94gTgsNXG1a+ZkTjDoThFOBhoUu8u9j56MbxG25D8+g
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mUTD6zpMTBLo51Py0Nragqoqhz5Na+v/rjN2WKwdsalkl6uDs/ZF6HTcSNGx3FFo
lbPIEnvgMgs4anGDmbYCw8MJRwoOpJ7dm3PdaLH4NgAa2imaOvGqbGfYNj21RqeG
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2mL9TDxgWQo8CnxxxlQQIkvEcQ5bQWF3vF8Wf2CW/EXAextwOARkRUA/gLGH+/Ns
gTt3A93tbd+2bCGqW1I6aRUOSTsnSwFGm7enJ9cUZXTcPFchUo2WEmUiqMA/3wCo
qKwk/WYz3Qz6tkR1b58+7bYiKREkSQOGUzZumAEjisRgMGyaimVYRgxJjXkdgM8F
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CCwZRQKg7fwAAAAASUVORK5CYII=" height="16" stroke="black" preserveAspectRatio="none"
      />
    ></g
  ></g
></svg
>

如果有人有任何想法，我将很高兴听到它！谢谢！

解决方法

SVG无法渲染，因为Batik依靠java.net.URL来加载嵌入式图像，并且Java中不支持data:方案。

要渲染SVG，您需要为URLStreamHandler方案添加data:实现，并通过java.protocol.handler.pkgs系统属性对其进行注册。

URL处理程序可以使用例如jdatauri（您也可以找到on Maven）。

要注册它，您需要使用-Djava.protocol.handler.pkgs=net.myself.handlers

运行Java

package net.myself.handlers.data;

import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.net.URL;
import java.net.URLConnection;
import java.net.URLStreamHandler;
import java.nio.charset.StandardCharsets;

import com.github.ooxi.jdatauri.DataUri;

public class Handler extends URLStreamHandler {
    public Handler() {
    }

    @Override
    protected URLConnection openConnection(URL u) throws IOException {
        DataUri dataUri = DataUri.parse(u.toString(),StandardCharsets.UTF_8);
        byte[] data = dataUri.getData();
        return new URLConnection(u) {
            @Override
            public void connect() {             
            }

            @Override
            public InputStream getInputStream() {
                return new ByteArrayInputStream(data);
            }
        };
    }
}

batik jasper-reports svg

JasperReports中的内嵌base64图像进行蜡染SVG解析

问题描述

解决方法

相关问答