在类路径上检测到log4j-over-slf4j.jar和slf4j-log4j12.jar，从而抢占了StackOverflowError。

Question

我xuggle library在项目中曾使用来转码来自的视频mp4 to flv。我也曾经用来slf4j libraries支持日志记录结束。

import com.xuggle.mediatool.IMediaReader;
import com.xuggle.mediatool.IMediaViewer;
import com.xuggle.mediatool.IMediaWriter;
import com.xuggle.mediatool.ToolFactory;

public class TranscodingExample {

    private static final String inputFilename = "E:\\VIDEO\\Facebook.mp4";
    private static final String outputFilename = "E:\\VIDEO\\Facebook.flv";

    public static void main(String[] args) {

        // create a media reader
        IMediaReader mediaReader = 
               ToolFactory.makeReader(inputFilename);

        // create a media writer
        IMediaWriter mediaWriter = 
               ToolFactory.makeWriter(outputFilename, mediaReader);

        // add a writer to the reader, to create the output file
        mediaReader.addListener(mediaWriter);

        // create a media viewer with stats enabled
        IMediaViewer mediaViewer = ToolFactory.makeViewer(true);

        // add a viewer to the reader, to see the decoded media
        mediaReader.addListener(mediaViewer);

        // read and decode packets from the source file and
        // and dispatch decoded audio and video to the writer
        while (mediaReader.readPacket() == null) ;

    }

}

在这里我得到一个错误

"Detected both log4j-over-slf4j.jar AND slf4j-log4j12.jar on the class path, preempting StackOverflowError.".

我已将两个jar文件都用作库，以解决日志记录问题。有没有人遇到过同样的问题，如果这样的话，请写出解决这个问题的建议或解决方案。提前致谢。

Answer 1

因此，您必须排除冲突依赖性。试试这个：

<exclusions>
  <exclusion> 
    <groupId>org.slf4j</groupId>
    <artifactId>slf4j-log4j12</artifactId>
  </exclusion>
  <exclusion> 
    <groupId>log4j</groupId>
    <artifactId>log4j</artifactId>
  </exclusion>
</exclusions>

这解决了slf4j和Dozer的相同问题。