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java文件操作

package com.mis.inter.datainter.ereq;import java.io.File;import java.io.FileInputStream;import java.io.FileOutputStream;import java.io.FileWriter;import java.io.InputStream;import java.io.PrintWriter;public class CopyFile {    public CopyFile() {    }    /**      * 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("新建文件操作出错");            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                               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();        }    }    /**      * 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);    }   // 拷贝文件   private void copyFile2(String source, String dest) {   try {   File in = new File(source);   File out = new File(dest);   FileInputStream inFile = new FileInputStream(in);   FileOutputStream outFile = new FileOutputStream(out);   byte[] buffer = new byte[1024];   int i = 0;   while ((i = inFile.read(buffer)) != -1) {   outFile.write(buffer, 0, i);   }//end while   inFile.close();   outFile.close();   }//end try   catch (Exception e) {   }//end catch   }//end copyFile   public static void main(String[] args) {	    CopyFile file = new CopyFile();//	    file.newFolder("newFolder22222");	    file.copyFile("d:\\test.xls","d:\\cd\\te.xls");	   }} 

  

java文件操作