查找jar包中.class文件关键字(变量名，字符串)

￡神魔★判官ぃ 2023-10-05 08:46 5阅读 0赞

原文链接:[https://www.cnblogs.com/hithlb/p/3906151.html][https_www.cnblogs.com_hithlb_p_3906151.html]

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package test;
    
    import java.io.BufferedReader;
    import java.io.File;
    import java.io.FileFilter;
    import java.io.IOException;
    import java.io.InputStreamReader;
    import java.util.Enumeration;
    import java.util.regex.Pattern;
    import java.util.zip.ZipEntry;
    import java.util.zip.ZipFile;
    
    public class FindForJarIndex {
    
        public static final String path = "I:\\Android\\04test\\Wc\\app\\libs"; //jar包父目录
        public static final String keywords = "getMessageFormat"; //关键字
    
        public static void main(String[] args) {
            File file = new File(path);
            final Pattern p = Pattern.compile(".+\\.jar$");
            File[] files = file.listFiles(new FileFilter() {
                @Override
                public boolean accept(File pathname) {
                    if (p.matcher(pathname.getPath()).matches()) {
                        return true;
                    } else {
                        return false;
                    }
                }
            });
    
            search(files);
        }
    
        private static void search(File[] files) {
            try {
                for (File f : files) {
                    if (f.isDirectory()) {
                        search(f.listFiles());
                    } else {
                        ZipFile jar = new ZipFile(f);
                        Enumeration enumration = jar.entries();
                        while (enumration.hasMoreElements()) {
                            ZipEntry zipEntry = (ZipEntry) enumration.nextElement();
    
                            InputStreamReader isr = new InputStreamReader(jar.getInputStream(zipEntry));
                            BufferedReader br = new BufferedReader(isr);
                            String line = br.readLine();
                            int line_num = 1;
                            while (null != line) {
    //                            System.out.println(line);
                                if (line.contains(keywords)) {
                                    System.out.println(
                                        f.getPath() + "," + zipEntry.getName() + "," + "line number = "
                                            + line_num);
                                }
                                line = br.readLine();
                                line_num++;
                            }
                        }
                    }
                }
            } catch (IOException io_e) {
                io_e.printStackTrace();
            }
        }
    }

[https_www.cnblogs.com_hithlb_p_3906151.html]: https://www.cnblogs.com/hithlb/p/3906151.html