小编guy*_*and的帖子

在Java中使用Regex.我一直试图让它发挥作用,但它每次都会抛出该死的错误.我确信它与花括号有关.

String openbrace = Pattern.quote("{");
String closebrace = Pattern.quote("}");
Pattern pattern = Pattern.compile(openbrace+"[ ]?\"(.*?)\"[ ]?,[ ]?\"(.*?)\"[ ]?"+closebrace);

+

{ "Working", "Working" },

=

Illegal Repetition

编辑:我使用NetBeans 7.0与JDK 1.7

当我使用以下代码运行类时:

public static void main(String[] args)
{
    createDuplicateStructure("in", "out");
}

public static void createDuplicateStructure(String path_start, String path_result)
{
    File start = new File(path_start);
    File result = new File(path_result);
    duplicateDirectoryStructure(start, result);
}

public static void duplicateDirectoryStructure(File start_dir, File result_dir)
{
    //FileFilter used by listFiles(filter) - to make sure they are dirs
    FileFilter dirs_only = new FileFilter() 
            { 
                public boolean accept(File file){  return file.isDirectory();} 
            };
    File[] dir_contents = start_dir.listFiles(dirs_only);
    for(File dir : dir_contents)
    {
        File duplicate = new File(result_dir.getPath(), dir.getName());
        if(dir.mkdir())
        { …