package file;
import java.io.BufferedReader;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.FileWriter;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.util.StringTokenizer;
/**
* 文件操作類:主要對服務端的版本程序進行更新
* @author frienfship
*
*/
public class FileOperate {
private String message;
public FileOperate() {
}
/**
* 取得目錄的絕對路徑
* @return 返回絕對路徑
*/
public static String getAbsolutePath(){
File file = new File("ecq");
file.mkdir();
String path=file.getAbsolutePath();
return path;
}
/**
* 重命名文件夾
* @param path 原文件夾路徑
* @param newname 新名稱
* @return
*/
public static void renamePath(String path, String newname){
File file = new File(path);
String oldpath = path;
int point = oldpath.lastIndexOf('/');
String beyondpath = oldpath.substring(0, point);
String newpath = beyondpath + newname;
File newfile = new File(newpath);
file.renameTo(newfile);
// file.mkdirs();
}
/**
* 讀取文本文件內容
* @param filePathAndName 帶有完整絕對路徑的文件名
* @param encoding 文本文件打開的編碼方式
* @return 返回文本文件的內容
*/
public String readTxt(String filePathAndName, String encoding)
throws IOException {
encoding = encoding.trim();
StringBuffer str = new StringBuffer("");
String st = "";
try {
FileInputStream fs = new FileInputStream(filePathAndName);
InputStreamReader isr;
if (encoding.equals("")) {
isr = new InputStreamReader(fs);
} else {
isr = new InputStreamReader(fs, encoding);
}
BufferedReader br = new BufferedReader(isr);
try {
String data = "";
while ((data = br.readLine()) != null) {
str.append(data + " ");
}
} catch (Exception e) {
str.append(e.toString());
}
st = str.toString();
} catch (IOException es) {
st = "";
}
return st;
}
/**
* 新建目錄
* @param folderPath 目錄
* @return 返回目錄創建后的路徑
*/
public String createFolder(String folderPath) {
String txt = folderPath;
try {
java.io.File myFilePath = new java.io.File(txt);
txt = folderPath;
if (!myFilePath.exists()) {
myFilePath.mkdir();
}
} catch (Exception e) {
message = "創建目錄操作出錯";
}
return txt;
}
/**
* 多級目錄創建
* @param folderPath 準備要在本級目錄下創建新目錄的目錄路徑 例如 c:myf
* @param paths 無限級目錄參數，各級目錄以單數線區分 例如 a|b|c
* @return 返回創建文件后的路徑
*/
public String createFolders(String folderPath, String paths) {
String txts = folderPath;
try {
String txt;
txts = folderPath;
StringTokenizer st = new StringTokenizer(paths, "|");
for (int i = 0; st.hasMoreTokens(); i++) {
txt = st.nextToken().trim();
if (txts.lastIndexOf("/") != -1) {
txts = createFolder(txts + txt);
} else {
txts = createFolder(txts + txt + "/");
}
}
} catch (Exception e) {
message = "創建目錄操作出錯！";
}
return txts;
}
/**
* 新建文件
* @param filePathAndName 文本文件完整絕對路徑及文件名
* @param fileContent 文本文件內容
* @return
*/
public void createFile(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);
myFile.close();
resultFile.close();
} catch (Exception e) {
message = "創建文件操作出錯";
}
}
/**
* 有編碼方式的文件創建
* @param filePathAndName 文本文件完整絕對路徑及文件名
* @param fileContent 文本文件內容
* @param encoding 編碼方式 例如 GBK 或者 UTF-8
* @return
*/
public void createFile(String filePathAndName, String fileContent,
String encoding) {
try {
String filePath = filePathAndName;
filePath = filePath.toString();
File myFilePath = new File(filePath);
if (!myFilePath.exists()) {
myFilePath.createNewFile();
}
PrintWriter myFile = new PrintWriter(myFilePath, encoding);
String strContent = fileContent;
myFile.println(strContent);
myFile.close();
} catch (Exception e) {
message = "創建文件操作出錯";
}
}
/**
* 刪除文件
* @param filePathAndName 文本文件完整絕對路徑及文件名
* @return Boolean 成功刪除返回true遭遇異常返回false
*/
public boolean delFile(String filePathAndName) {
boolean bea = false;
try {
String filePath = filePathAndName;
File myDelFile = new File(filePath);
if(myDelFile.exists()){
myDelFile.delete();
bea = true;
}else{
bea = false;
message = (filePathAndName+"刪除文件操作出錯");
}
}
catch (Exception e) {
message = e.toString();
}
return bea;
}
/**
* 刪除文件夾
* @param folderPath 文件夾完整絕對路徑
* @return
*/
public void delFolder(String folderPath) {
try {
delAllFile(folderPath); //刪除完里面所有內容
String filePath = folderPath;
filePath = filePath.toString();
java.io.File myFilePath = new java.io.File(filePath);
myFilePath.delete(); //刪除空文件夾
} catch (Exception e) {
message = ("刪除文件夾操作出錯");
}
}
/**
* 刪除指定文件夾下所有文件
* @param path 文件夾完整絕對路徑
* @return
* @return
*/
public boolean delAllFile(String path) {
boolean bea = false;
File file = new File(path);
if (!file.exists()) {
return bea;
}
if (!file.isDirectory()) {
return bea;
}
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]);//先刪除文件夾里面的文件
delFolder(path + "/" + tempList[i]);//再刪除空文件夾
bea = true;
}
}
return bea;
}
/**
* 復制單個文件
* @param oldPathFile 準備復制的文件源
* @param newPathFile 拷貝到新絕對路徑帶文件名
* @return
*/
public void copyFile(String oldPathFile, String newPathFile) {
try {
int bytesum = 0;
int byteread = 0;
File oldfile = new File(oldPathFile);
if (oldfile.exists()) { //文件存在時
InputStream inStream = new FileInputStream(oldPathFile); //讀入原文件
FileOutputStream fs = new FileOutputStream(newPathFile);
byte[] buffer = new byte[1444];
while ((byteread = inStream.read(buffer)) != -1) {
bytesum += byteread; //字節數 文件大小
System.out.println(bytesum);
fs.write(buffer, 0, byteread);
}
inStream.close();
}
} catch (Exception e) {
message = ("復制單個文件操作出錯");
}
}
/**
* 復制整個文件夾的內容
* @param oldPath 準備拷貝的目錄
* @param newPath 指定絕對路徑的新目錄
* @return
*/
public Boolean copyFolder(String oldPath, String newPath) {
try {
new File(newPath).mkdirs(); //如果文件夾不存在 則建立新文件夾
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()) {//如果是子文件夾
copyFolder(oldPath + "/" + file[i], newPath + "/" + file[i]);
}
}
return true;
} catch (Exception e) {
message = "復制整個文件夾內容操作出錯";
return false;
}
}
/**
* 移動文件
* @param oldPath
* @param newPath
* @return
*/
public void moveFile(String oldPath, String newPath) {
copyFile(oldPath, newPath);
delFile(oldPath);
}
/**
* 移動目錄
* @param oldPath
* @param newPath
* @return
*/
public void moveFolder(String oldPath, String newPath) {
copyFolder(oldPath, newPath);
delFolder(oldPath);
}
public String getMessage() {
return this.message;
}
public static void main(String[] args) throws Exception {
FileOperate fo = new FileOperate();
String newPath = "e://aaa";
// System.out.println(newPath);
String oldPath = "http://14.1.1.101//bbb";
fo.copyFolder(oldPath, newPath);
// fo.delFolder("c://dola");
// FileOperate.renamePath("d://Audio", "不備份");
}
}