问题描述
- 为什么 函数不执行hfc.delete(path)函数;
-
public static void updateLog(String code, String record, String fileName) { try { String content = code + " " + record + System.getProperty("line.separator"); File file = new File(fileName); // file.mkdir(); // if file doesn't exists, then create it if (!file.exists()) { file.createNewFile(); } FileWriter fw = new FileWriter(file, true); BufferedWriter bw = new BufferedWriter(fw); bw.write(content); bw.close(); System.out.println("Log File updated"); } catch (IOException e) { e.printStackTrace(); } List list = new ArrayList(); try { BufferedReader bw = new BufferedReader(new FileReader(fileName)); String line = null; try { while ((line = bw.readLine()) != null) { list.add(line); } } catch (IOException e) { e.printStackTrace(); } } catch (FileNotFoundException e) { e.printStackTrace(); } int max = list.size();// TXT lines if (max > 10) { one_key(); } } public static void one_key() { // delete the first line String filePath = "C:\LOG"; String fileName = "AddLog.txt"; del(filePath, fileName); // delete file httpHandler hfc = new httpHandler(); String path = "C:\LOG\AddLog.txt"; hfc.deleteFile(path); // copy the file // File files = new File("C:\LOG\test\"); // File file[] = files.listFiles();// 获得目录中的文件及子目录信息 // int i = (int) (Math.random() * file.length); // fun(file, i); } public static void del(String filePath, String fileName) { RandomAccessFile readFile = null; try { readFile = new RandomAccessFile(filePath + "\" + fileName, "r"); readFile.readLine(); readFile.readLine(); readFile.readLine(); } catch (FileNotFoundException e) { // TODO Auto-generated catch block e.printStackTrace(); return; } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); return; } RandomAccessFile writeFile = null; try { writeFile = new RandomAccessFile(filePath + "\test\" + fileName, "rw"); String tempLine = null; while ((tempLine = readFile.readLine()) != null) { writeFile.writeBytes(tempLine); writeFile.writeBytes("rn"); } } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } try { readFile.close(); writeFile.close(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } } public boolean deleteFile(String sPath) { boolean flag = false; File file = new File(sPath); // 路径为文件且不为空则进行删除 if (file.isFile() && file.exists()) { file.delete(); flag = true; } return flag; } public static void fun(File file[], int i) { if (file[i].exists()) {// 如果文件存在 String name = file[i].getName();// 获取文件名 if (file[i].isFile() && name.endsWith(".txt")) { // 如果是文件并且后缀名为.txt File dest = new File("c:\LOG\" + file[i].getName()); file[i].renameTo(dest); } else { int j = (int) (Math.random() * file.length); fun(file, j); } } else { int j = (int) (Math.random() * file.length); fun(file, j); } }
时间: 2024-08-01 18:36:33