查找匹配给定字符串的jar:

找到。name \*.jar -exec grep -l YOUR_CLASSNAME {} \;

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();
        }
    }

}

这个在MinGW (windows bash环境)中工作得很好~ gitbash

把这个函数放到HOME目录下的.bashrc文件中:

# this function helps you to find a jar file for the class
function find_jar_of_class() {
  OLD_IFS=$IFS
  IFS=$'\n'
  jars=( $( find -type f -name "*.jar" ) )
  for i in ${jars[*]} ; do 
    if [ ! -z "$(jar -tvf "$i" | grep -Hsi $1)" ] ; then
      echo "$i"
    fi
   done 
  IFS=$OLD_IFS
}

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。

检查这个eclipse插件，它可以做你正在寻找的工作。

https://marketplace.eclipse.org/content/jarchiveexplorer

要在一个jar文件夹(及其子文件夹)中找到一个类: https://jarscan.com/

Usage: java -jar jarscan.jar [-help | /?]
                    [-dir directory name]
                    [-zip]
                    [-showProgress]
                    <-files | -class | -package>
                    <search string 1> [search string 2]
                    [search string n]

Help:
  -help or /?           Displays this message.

  -dir                  The directory to start searching
                        from default is "."

  -zip                  Also search Zip files

  -showProgress         Show a running count of files read in

  -files or -class      Search for a file or Java class
                        contained in some library.
                        i.e. HttpServlet

  -package              Search for a Java package
                        contained in some library.
                        i.e. javax.servlet.http

  search string         The file or package to
                        search for.
                        i.e. see examples above

例子:

java -jar jarscan.jar -dir C:\Folder\To\Search -showProgress -class GenericServlet