[javaSE] java获取文件列表详解编程语言

private static final String FILE_PATH = "./"; private static List Map String, String FileList; public static void main(String[] args) { listFiles(new File(FILE_PATH), 1); // for(Map String,String item:FileList){ // System.out.println("{name:"+item.get("name")+",level:"+item.get("level")+"}"); // } public static void listFiles(File file, int level) { FileList = new ArrayList (); Map String, String item; File[] files = file.listFiles(); if (file.list().length != 0) { for (File fileTemp : files) { String fileName = fileTemp.getName(); System.out.println(getLevelPrefix(level) + fileName); if (fileTemp.isDirectory() fileTemp.list().length 0) { listFiles(fileTemp, level + 1); } else { item = new HashMap String, String (); item.put("name", fileTemp.getName()); item.put("level", String.valueOf(level)); FileList.add(item); } else { System.out.println(getLevelPrefix(level) + file.getName()); public static String getLevelPrefix(int level) { StringBuilder sb = new StringBuilder(); for (int i = 1; i level; i++) { sb.append(" "); sb.append("|--"); return sb.toString(); }

 

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