当我遇到这个问题时，我不知道有什么实用程序可以做到这一点，所以我写了下面的代码:

public class Main {

    /**
     * 
     */
    private static String CLASS_FILE_TO_FIND =
            "class.to.find.Here";
    private static List<String> foundIn = new LinkedList<String>();

    /**
     * @param args the first argument is the path of the file to search in. The second may be the
     *        class file to find.
     */
    public static void main(String[] args) {
        if (!CLASS_FILE_TO_FIND.endsWith(".class")) {
            CLASS_FILE_TO_FIND = CLASS_FILE_TO_FIND.replace('.', '/') + ".class";
        }
        File start = new File(args[0]);
        if (args.length > 1) {
            CLASS_FILE_TO_FIND = args[1];
        }
        search(start);
        System.out.println("------RESULTS------");
        for (String s : foundIn) {
            System.out.println(s);
        }
    }

    private static void search(File start) {
        try {
            final FileFilter filter = new FileFilter() {

                public boolean accept(File pathname) {
                    return pathname.getName().endsWith(".jar") || pathname.isDirectory();
                }
            };
            for (File f : start.listFiles(filter)) {
                if (f.isDirectory()) {
                    search(f);
                } else {
                    searchJar(f);
                }
            }
        } catch (Exception e) {
            System.err.println("Error at: " + start.getPath() + " " + e.getMessage());
        }
    }

    private static void searchJar(File f) {
        try {
            System.out.println("Searching: " + f.getPath());
            JarFile jar = new JarFile(f);
            ZipEntry e = jar.getEntry(CLASS_FILE_TO_FIND);
            if (e == null) {
                e = jar.getJarEntry(CLASS_FILE_TO_FIND);
                if (e != null) {
                    foundIn.add(f.getPath());
                }
            } else {
                foundIn.add(f.getPath());
            }
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

}

要搜索给定目录下的所有jar文件以查找特定的类，你可以这样做:

ls *.jar | xargs grep -F MyClass

或者更简单一点，

grep -F MyClass *.jar

输出如下所示:

Binary file foo.jar matches

它非常快，因为-F选项意味着搜索Fixed字符串，所以它不会为每次grep调用加载regex引擎。如果需要，您总是可以省略-F选项并使用正则表达式。

无耻的自我推销，但你可以试试我写的实用工具:http://sourceforge.net/projects/zfind

它支持大多数常见的归档/压缩文件(jar, zip, tar, tar.gz等)，不像许多其他jar/zip查找器，支持嵌套的zip文件(zip在zip, jar在jar等)，直到无限的深度。

你可以在一个充满jar的目录中找到一个类，它带有一些shell:

寻找类“FooBar”:

LIB_DIR=/some/dir/full/of/jarfiles
for jarfile in $(find $LIBDIR -name "*.jar"); do
   echo "--------$jarfile---------------"
   jar -tvf $jarfile | grep FooBar
done

使用这个. .你可以在类路径..中找到任何文件。保证. .

import java.net.URL;
import java.net.URLClassLoader;
import java.util.zip.ZipEntry;
import java.util.zip.ZipInputStream;

public class FileFinder {

    public static void main(String[] args) throws Exception {

        String file = <your file name>;

        ClassLoader cl = ClassLoader.getSystemClassLoader();

        URL[] urls = ((URLClassLoader)cl).getURLs();

        for(URL url: urls){
            listFiles(file, url);
        }
    }

    private static void listFiles(String file, URL url) throws Exception{
        ZipInputStream zip = new ZipInputStream(url.openStream());
          while(true) {
            ZipEntry e = zip.getNextEntry();
            if (e == null)
              break;
            String name = e.getName();
            if (name.endsWith(file)) {
                System.out.println(url.toString() + " -> " + name);
            }
          }
    }

}

文件名:searchForFiles.py

import os, zipfile, glob, sys

def main():
    searchFile = sys.argv[1] #class file to search for, sent from batch file below (optional, see second block of code below)
    listOfFilesInJar = []
    for file in glob.glob("*.jar"):
        archive = zipfile.ZipFile(file, 'r')
        for x in archive.namelist():
            if str(searchFile) in str(x):
                listOfFilesInJar.append(file)

    for something in listOfFilesInJar:
        print("location of "+str(searchFile)+": ",something)

if __name__ == "__main__":
    sys.exit(main())

你可以通过创建一个带有以下文本的.bat文件(用你正在搜索的文件替换“AddWorkflows.class”)来轻松运行:

(文件:CallSearchForFiles.bat)

@echo off
python -B -c "import searchForFiles;x=searchForFiles.main();" AddWorkflows.class
pause

您可以双击CallSearchForFiles.bat来运行它，或者从命令行“CallSearchForFiles.bat SearchFile.class”调用它。

单击以查看示例输出