在java中实现了批量修改文件名 一共需要如下三个类： 1、FileOperation实现批量修改文件名 2、Pair保存文件修改后的信息 3、FileException异常类 源代码如下： FileException.java /** * @author yunfeiyang * */ public class FileException extends Exception { private static final long serialVersionUID = -6732271928769108516L; private String message; public FileException() { // TODO Auto-generated constructor stub } /** * @param message */ public FileException(String message) { super(message); this.message = message; } /** * @param cause */ public FileException(Throwable cause) { super(cause); // TODO Auto-generated constructor stub } /** * @param message * @param cause */ public FileException(String message, Throwable cause) { super(message, cause); } public String getErrorMessage() { return message; } } FileOperation.java package com.zjut.yunfeiyang; import java.io.File; import java.util.ArrayList; public class FileOperation { public FileOperation() { } public Pair renameFile(File source, String name) throws NullPointerException, FileException { if (source == null) { throw new NullPointerException("source file is null"); } else if (name == null || name.trim().length() == 0) { throw new NullPointerException("file name is null"); } else if (!source.exists()) { throw new FileException("File does not exsist"); } else if (source.isDirectory()) { throw new FileException("It is a directory not a file"); } else { String filename = source.getName(); String fname = filename.substring(0, filename.lastIndexOf(".")); if (fname.equalsIgnoreCase(name)) { throw new FileException( "file name can't be the same with source file for filename:" + name); } else { String extensin = filename .substring(filename.lastIndexOf(".") + 1); String newName = name + "." + extensin; String pat...
