struts2实现文件上传的工具类
FileTool.java
import java.io.File;import java.io.FileInputStream;import java.io.FileOutputStream;import java.io.IOException;import java.util.Calendar;import java.util.Locale;/** * 文件操作工具類 * * @author fengyapeng * @time: 2011-4-11 下午03:40:41 * @Company:oddtech */public class FileTool {private static int i;public static boolean copyFile(String resourceFimeName,String targetFileName) throws IOException {return copyFile(new File(resourceFimeName), new File(targetFileName));}/** * 文件拷貝 * * @param resourceFimeName * 源文件的路徑名稱 * @param targetFile * 目的文件 * @return * @throws IOException */public static boolean copyFile(String resourceFimeName, File targetFile)throws IOException {return copyFile(new File(resourceFimeName), targetFile);}/** * 文件拷貝 * * @param resourceFile * 源文件 * @param targetFileName * 目的文件的路徑名稱 * @return * @throws IOException */public static boolean copyFile(File resourceFile, String targetFileName)throws IOException {return copyFile(resourceFile, new File(targetFileName));}/** * 文件拷貝 * * @param resourceFile * 源文件 * @param targetFile * 目的文件 * @return * @throws IOException */public static boolean copyFile(File resourceFile, File targetFile)throws IOException {if (resourceFile == null || targetFile == null)return false;if (resourceFile.exists()) {if (!targetFile.exists()) {File parentFile = targetFile.getParentFile();if (!parentFile.exists())parentFile.mkdirs();targetFile.createNewFile();}FileInputStream in = new FileInputStream(resourceFile);FileOutputStream out = new FileOutputStream(targetFile);byte[] buffer = new byte[1024 * 8];int i = 0;while ((i = in.read(buffer)) != -1) {out.write(buffer, 0, i);}out.flush();return true;} else {return false;}}/** * 文件刪除， * * @param fileName * 文件的路徑 */public static void deleteFile(String fileName) {if (fileName != null) {deleteFile(new File(fileName));}}/** * 文件刪除 * * @param file * 文件 */public static void deleteFile(File file) {if (file != null && file.exists()) {System.out.println(file.delete());}}/** * 按照當前時間命名上傳的文件名 */public static String getFileNameByTime() {Calendar date = Calendar.getInstance(Locale.CHINESE);StringBuffer fileName = new StringBuffer();if (i == 100)i = 0;if (i <= 9) {fileName.append(date.get(Calendar.YEAR)).append(date.get(Calendar.MONTH) + 1).append(date.get(Calendar.DAY_OF_MONTH)).append(date.get(Calendar.HOUR_OF_DAY)).append(date.get(Calendar.MINUTE)).append(date.get(Calendar.MILLISECOND)).append("00").append(i);} else {fileName.append(date.get(Calendar.YEAR)).append(date.get(Calendar.MONTH) + 1).append(date.get(Calendar.DAY_OF_MONTH)).append(date.get(Calendar.HOUR_OF_DAY)).append(date.get(Calendar.MINUTE)).append(date.get(Calendar.MILLISECOND)).append("0").append(i);}System.out.println(date.toString());return fileName.toString();}}?