异常：java.lang.NoSuchMethodError：com.lowagie.text.pdf.PdfWriter.setRgbTransparencyBlending(Z)V

exception: java.lang.NoSuchMethodError: com.lowagie.text.pdf.PdfWriter.setRgbTransparencyBlending(Z)V

提问by Andrew Valevskiy

guys! For long time I can't fix the exception: java.lang.NoSuchMethodError: com.lowagie.text.pdf.PdfWriter.setRgbTransparencyBlending(Z)V

伙计们！很长一段时间我无法修复异常：java.lang.NoSuchMethodError: com.lowagie.text.pdf.PdfWriter.setRgbTransparencyBlending(Z)V

I've add all need jars into classpath:

我已将所有需要的 jars 添加到类路径中：

• commons-beanutils-1.8.0
• commons-collections-2.1.1
• commons-digester-2.1.0
• commons-javaflow-20060411
• commons-logging-1.1.1
• itext - 2.1.5
• jasperreports - 5.1.0

• commons-beanutils-1.8.0
• commons-collections-2.1.1
• commons-digester-2.1.0
• 公共-javaflow-20060411
• commons-logging-1.1.1
• 文本 - 2.1.5
• 碧玉报告 - 5.1.0

I saw requirements for JasperReports here, so I've all need libraries, but, anyway, I can't fix the bug

我在这里看到了 JasperReports 的需求，所以我都需要库，但是，无论如何，我无法修复错误

My code:

我的代码：

    class ForIReport {

    public static void main(String[] args) {

//        def conn = Sql.newInstance(
//                "jdbc:sqlserver://localhost:1433;databaseName=twitter",
//                'sa',
//                'sunrise123',
//                'com.microsoft.sqlserver.jdbc.SQLServerDriver')

//        Class.forName("com.microsoft.jdbc.SQLServerDriver").newInstance();
//        Connection conn = DriverManager.getConnection("jdbc:microsoft:sqlserver://localhost:1433", 'sa', 'sunrise123');

        def fileName = "C:/Users/avalev/Documents/iReport/First.jasper"

        def outFileName = "First.pdf"

        HashMap hm = new HashMap()

        JasperPrint print = JasperFillManager.fillReport(fileName, hm, new JREmptyDataSource())


        JRExporter exporter = new JRPdfExporter()

        exporter.setParameter(
                JRExporterParameter.OUTPUT_FILE_NAME,
                outFileName);

        exporter.setParameter(JRExporterParameter.JASPER_PRINT, print)

        exporter.exportReport()

        println("Created file :" + outFileName)

    }

}

and description of exception

和异常描述

log4j:WARN No appenders could be found for logger (net.sf.jasperreports.extensions.ExtensionsEnvironment).
log4j:WARN Please initialize the log4j system properly.
log4j:WARN See http://logging.apache.org/log4j/1.2/faq.html#noconfig for more info.
Exception in thread "main" java.lang.NoSuchMethodError: com.lowagie.text.pdf.PdfWriter.setRgbTransparencyBlending(Z)V
    at net.sf.jasperreports.engine.export.JRPdfExporter.exportReportToStream(JRPdfExporter.java:596)
    at net.sf.jasperreports.engine.export.JRPdfExporter.exportReport(JRPdfExporter.java:419)
    at net.sf.jasperreports.engine.JRExporter$exportReport.call(Unknown Source)
    at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:42)
    at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:108)
    at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:112)
    at ForIReport.main(One.groovy:51)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
    at java.lang.reflect.Method.invoke(Method.java:597)
    at com.intellij.rt.execution.application.AppMain.main(AppMain.java:120)

I can create the instance of PdfWriter class (for check myself)

我可以创建 PdfWriter 类的实例（用于检查自己）

Thank you for your help

感谢您的帮助

采纳答案by M. Abbas

jasperreports-5.1.0needs itext-2.1.7.

jasperreports-5.1.0需要itext-2.1.7。

You can see it in the pomof the jasperreports-5.1.0project:

可以在项目的pom中看到jasperreports-5.1.0：

<dependency>
    <groupId>com.lowagie</groupId>
    <artifactId>itext</artifactId>
    <version>2.1.7.js2</version>
    <scope>compile</scope>
</dependency>

You need to upgrade the version of itext to version 2.1.7minimum.

您需要将 itext 的版本升级到最低版本2.1.7。

回答by Eugene

I had the same [runtime] error. What I realized was, I had the wrong jars for the "batik" library. I got all version 1.7 jars from the org.apache.xmlgraphics. I'm using jasper in this way:

我有同样的[runtime] error。我意识到的是，我为“蜡染”图书馆准备了错误的罐子。我从org.apache.xmlgraphics. 我以这种方式使用碧玉：

 <dependency>
      <groupId>net.sf.jasperreports</groupId>
      <artifactId>jasperreports</artifactId>
      <version>4.0.0</version>
   </dependency>

The batik, for example:

蜡染，例如：

<dependency>
      <groupId>org.apache.xmlgraphics</groupId>
      <artifactId>batik-anim</artifactId>
      <version>1.7</version>
</dependency>

Also, I made sure I only had one instance of iText in the pom:

另外，我确保在 pom 中只有一个 iText 实例：

<dependency>
   <groupId>com.lowagie</groupId>
   <artifactId>iText</artifactId>
   <version>2.1.7</version>
</dependency>

Hope that helps.

希望有帮助。

回答by Kandy

I had the same issue, when retrieving data from grid and writing to a PDF using

我遇到了同样的问题，当从网格中检索数据并使用

flying-saucer-pdf

飞碟-pdf

The isuue was com.lowagie (itext)and org.xhtmlrenderer (flying-saucer-pdf)versions incompatible,

isuue 是com.lowagie (itext)和org.xhtmlrenderer (flying-saucer-pdf)版本不兼容，

use following,

使用以下，

<dependency>
        <groupId>com.lowagie</groupId>
        <artifactId>itext</artifactId>
        <version>2.1.7</version>
    </dependency>
    <dependency>
        <groupId>org.xhtmlrenderer</groupId>
        <artifactId>flying-saucer-pdf</artifactId>
        <version>9.0.7</version>
    </dependency>

回答by Sanketik Gote

I have also came across same situation but finally succeeded to resolve it.

我也遇到过同样的情况，但最终成功解决了它。

If you are using maven then add below dependency

如果您使用的是 maven，请添加以下依赖项

<dependency> <groupId>org.eclipse.birt.runtime.3_7_1</groupId> <artifactId>com.lowagie.text</artifactId> <version>2.1.7</version> </dependency>

<dependency> <groupId>org.eclipse.birt.runtime.3_7_1</groupId> <artifactId>com.lowagie.text</artifactId> <version>2.1.7</version> </dependency>

or download jar from below link and add to your buildpath

或从下面的链接下载 jar 并添加到您的构建路径

com.lowagie.text_2.1.7

com.lowagie.text_2.1.7

It will be of no use to add itext-2.1.7.jar , Also the latest version of that is itextpdf-5.5.9.jar

添加 itext-2.1.7.jar 也没有用，而且最新版本是 itextpdf-5.5.9.jar