fileoperate.java

利用jxl和jdom到报表用的,可以自定义excel模板

package com.glf.reportIE.commons;

import java.io.*;
import java.util.*;

public class FileOperate {
	public FileOperate() {	
	} 
	
	/**
	* 新建目录
	* @param folderPath String 如 c:/fqf
	* @return boolean
	*/
	public void newFolder(String folderPath) {
		try {
			String filePath = folderPath;
			filePath = filePath.toString();
			java.io.File myFilePath = new java.io.File(filePath);
			if (!myFilePath.exists()) {
				myFilePath.mkdir();
			}
		} catch (Exception e) {
			System.out.println("新建目录操作出错");
			e.printStackTrace();
		}
	}

	/**
	* 新建文件
	* @param filePathAndName String 文件路径及名称 如c:/fqf.txt
	* @param fileContent String 文件内容
	* @return boolean
	*/
	public void newFile(String filePathAndName, String fileContent) {
		try {
			String filePath = filePathAndName;
			filePath = filePath.toString();
			File myFilePath = new File(filePath);
			if (!myFilePath.exists()) {
				myFilePath.createNewFile();
			}
			FileWriter resultFile = new FileWriter(myFilePath);
			PrintWriter myFile = new PrintWriter(resultFile);
			String strContent = fileContent;
			myFile.println(strContent);
			resultFile.close();
		} catch (Exception e) {
			System.out.println("新建目录操作出错");
			e.printStackTrace();
		}
	}

	/**
	* 删除文件
	* @param filePathAndName String 文件路径及名称 如c:/fqf.txt
	* @param fileContent String
	* @return boolean
	*/
	public void delFile(String filePathAndName) {
		try {
			String filePath = filePathAndName;
			filePath = filePath.toString();
			java.io.File myDelFile = new java.io.File(filePath);
			myDelFile.delete();
		} catch (Exception e) {
			System.out.println("删除文件操作出错");
			e.printStackTrace();
		}
	}

	/**
	* 删除文件夹
	* @param filePathAndName String 文件夹路径及名称 如c:/fqf
	* @param fileContent String
	* @return boolean
	*/
	public void delFolder(String folderPath) {
		try {
			delAllFile(folderPath); //删除完里面所有内容
			String filePath = folderPath;
			filePath = filePath.toString();
			java.io.File myFilePath = new java.io.File(filePath);
			myFilePath.delete(); //删除空文件夹
		} catch (Exception e) {
			System.out.println("删除文件夹操作出错");
			e.printStackTrace();
		}
	}

	/**
	* 删除文件夹里面的所有文件
	* @param path String 文件夹路径 如 c:/fqf
	*/
	public void delAllFile(String path) {
		File file = new File(path);
		if (!file.exists()) {
			return;
		}
		if (!file.isDirectory()) {
			return;
		}
		String[] tempList = file.list();
		File temp = null;
		for (int i = 0; i < tempList.length; i++) {
			if (path.endsWith(File.separator)) {
				temp = new File(path + tempList[i]);
			} else {
				temp = new File(path + File.separator + tempList[i]);
			}
			if (temp.isFile()) {
				temp.delete();
			}
			if (temp.isDirectory()) {
				delAllFile(path+"/"+ tempList[i]);//先删除文件夹里面的文件
				delFolder(path+"/"+ tempList[i]);//再删除空文件夹
			}
		}
	}

	/**
	* 复制单个文件
	* @param oldPath String 原文件路径 如：c:/fqf.txt
	* @param newPath String 复制后路径 如：f:/fqf.txt
	* @return boolean
	*/
	public void copyFile(String oldPath, String newPath) {
		try {
			int bytesum = 0;
			int byteread = 0;
			File oldfile = new File(oldPath);
			if (oldfile.exists()) { //文件存在时
				InputStream inStream = new FileInputStream(oldPath); //读入原文件
				FileOutputStream fs = new FileOutputStream(newPath);
				byte[] buffer = new byte[1444];
				int length;
				while ( (byteread = inStream.read(buffer)) != -1) {
					bytesum += byteread; //字节数 文件大小
					//System.out.println(bytesum);
					fs.write(buffer, 0, byteread);
				}
				inStream.close();
			}
		} catch (Exception e) {
			System.out.println("复制单个文件操作出错");
			e.printStackTrace();
		}
	}
	
	/**
	 * 根据路径判断文件是否存在
	 */
	public boolean isNull(String oldPath){
		boolean flag = false;
		File oldfile = new File(oldPath);
		if (oldfile.exists()) { //文件存在时
			flag = true;
		} else {
			flag = false;
		}
		return flag;
	}

	/**
	* 复制整个文件夹内容
	* @param oldPath String 原文件路径 如：c:/fqf
	* @param newPath String 复制后路径 如：f:/fqf/ff
	* @return boolean
	*/
	public void copyFolder(String oldPath, String newPath) {
		try {
			(new File(newPath)).mkdirs(); //如果文件夹不存在 则建立新文件夹
			File a=new File(oldPath);
			String[] file=a.list();
			File temp=null;
			for (int i = 0; i < file.length; i++) {
				if(oldPath.endsWith(File.separator)){
					temp=new File(oldPath+file[i]);
				}else{
					temp=new File(oldPath+File.separator+file[i]);
				}

				if(temp.isFile()){
					FileInputStream input = new FileInputStream(temp);
					FileOutputStream output = new FileOutputStream(newPath + "/" +(temp.getName()).toString());
					byte[] b = new byte[1024 * 5];
					int len;
					while ( (len = input.read(b)) != -1) {
						output.write(b, 0, len);
					}
					output.flush();
					output.close();
					input.close();
				}
				if(temp.isDirectory()){//如果是子文件夹
					copyFolder(oldPath+"/"+file[i],newPath+"/"+file[i]);
				}
			}
		} catch (Exception e) {
			System.out.println("复制整个文件夹内容操作出错");
			e.printStackTrace();
		}
	}

	/**
	* 移动文件到指定目录
	* @param oldPath String 如：c:/fqf.txt
	* @param newPath String 如：d:/fqf.txt
	*/
	public void moveFile(String oldPath, String newPath) {
		copyFile(oldPath, newPath);
		delFile(oldPath);
	}

	/**
	* 移动文件到指定目录
	* @param oldPath String 如：c:/fqf.txt
	* @param newPath String 如：d:/fqf.txt
	*/
	public void moveFolder(String oldPath, String newPath) {
		copyFolder(oldPath, newPath);
		delFolder(oldPath);
	} 
	
	
	/**
	 * 列出一个目录下所有文件名，不包括文件夹里的文件
	 */
	@SuppressWarnings("unchecked")
	public ArrayList listAllFileOfOneFolder(String filePath){
		ArrayList fileArray = new ArrayList();
		File temp = new File(filePath);   
        File[] tempList = temp.listFiles();   
        for(int	i=0; i<tempList.length; i++){   
        	if(tempList[i].isFile()){   
        		fileArray.add(tempList[i]);
        	}
        }   
		return fileArray;
	}
	
	/**
	 * @param args
	 */
	public static void main(String[] args) {
		// TODO Auto-generated method stub
		//FileOperate _fileOperate = new FileOperate();
		//_fileOperate.copyFile("E:/j2ee/tomcat/webapps/thizcaiwu/upload/06000321.jpg", "E:/j2ee/tomcat/webapps/thizcaiwu/upload/06000321.png");
		//ArrayList temp = _fileOperate.listAllFileOfOneFolder("c:/");
		//System.out.print(temp);
	}

}