Java反编译代码对齐

使用反编译的代码作为jar包源码进行调试时，经常会遇到的情况是反编译后的源码之在注释里包含行号，但是与代码所在行经常对应不上。这个时候，就有必要对代码进行对齐了。

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 public class Reorg {
     public static void main(String[] args) throws IOException {
         File file = new File("D:\\OpenSource\\lib\\framework\\frameworkTest");
         doReorg(file);
     }

     public static void doReorg(File file) throws IOException {
         System.out.println("搜索路径:" + file.getPath());
         if (file.isDirectory()) {
             File[] javaFiles = file.listFiles(new FilenameFilter() {
                 @Override
                 public boolean accept(File dir, String name) {
                     if (name.endsWith(".java"))
                         return true;
                     return false;
                 }
             });

             for (File javaFile : javaFiles) {
                 ReorgJavaFile.reorgFile(javaFile);
             }

             File[] paths = file.listFiles(new FileFilter() {
                 @Override
                 public boolean accept(File pathname) {
                     if (pathname.isDirectory())
                         return true;
                     return false;
                 }
             });

             for (File path : paths) {
                 doReorg(path);
             }
         }
     }

 }

 public class ReorgJavaFile {
     private static final Pattern p = Pattern.compile("/\\*\\s*(\\d+)\\s*\\*/");

     public static void reorgFile(File f) throws IOException {
         System.out.println("检查文件:" + f.getPath());

         int a = 0;
         BufferedReader r = new BufferedReader(new FileReader(f));
         StringBuilder sb = new StringBuilder();

         String line;
         while ((line = r.readLine()) != null) {

             a++;
             Matcher m = p.matcher(line);
             if (m.find()) {
                 int num = Integer.valueOf(m.group(1));
                 if (num < a) {
                     System.out.print("\t");
                     System.out.println(f.getPath());
                     System.out.print("\t");
                     System.out.println("In line " + a + ", src file line is " + num);
                 } else if (num > a) {
                     while (num != a) {
                         sb.append("\n");
                         a++;
                     }
                 }
             }

             sb.append(line).append("\n");

         }

         r.close();

         BufferedWriter w = new BufferedWriter(new FileWriter(f));
         w.write(sb.toString());

         w.flush();
         w.close();
     }

 }

不过此代码只能对反编译代码进行部分对齐，仍有一些地方需要人工进行对齐。