?? fileoperate.java
字號(hào):
import java.io.*;
public class FileOperate {
public static void main(String[] args){
FileOperate.copyFile("D:\\新建位圖圖像.bmp", "D:\\圖書");
}
/**
* 新建目錄
*
* @param folderPath
* String 如 c:/fqf
* @return boolean
*/
public static 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("新建目錄操作出錯(cuò)");
e.printStackTrace();
}
}
/**
* 新建文件
*
* @param filePathAndName
* String 文件路徑及名稱 如c:/fqf.txt
* @param fileContent
* String 文件內(nèi)容
* @return boolean
*/
public static 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("新建目錄操作出錯(cuò)");
e.printStackTrace();
}
}
/**
* 刪除文件
*
* @param filePathAndName
* String 文件路徑及名稱 如c:/fqf.txt
* @param fileContent
* String
* @return boolean
*/
public static boolean delFile(String filePathAndName) {
boolean b=true;
try {
String filePath = filePathAndName;
filePath = filePath.toString();
java.io.File myDelFile = new java.io.File(filePath);
b=myDelFile.delete();
} catch (Exception e) {
System.out.println("刪除文件操作出錯(cuò)");
e.printStackTrace();
b=false;
}
return b;
}
/**
* 刪除文件夾
*
* @param filePathAndName
* String 文件夾路徑及名稱 如c:/fqf
* @param fileContent
* String
* @return boolean
*/
public static boolean delFolder(String folderPath) {
boolean b=true;
try {
delAllFile(folderPath); // 刪除完里面所有內(nèi)容
String filePath = folderPath;
filePath = filePath.toString();
java.io.File myFilePath = new java.io.File(filePath);
b=myFilePath.delete(); // 刪除空文件夾
} catch (Exception e) {
System.out.println("刪除文件夾操作出錯(cuò)");
b=false;
}
return b;
}
/**
* 刪除文件夾里面的所有文件
*
* @param path
* String 文件夾路徑 如 c:/fqf
*/
public static void delAllFile(String path) {
File file = new File(path);
boolean b=true;
if (!file.exists()) {
b=false;
return;
}
if (!file.isDirectory()) {
b=false;
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]);// 先刪除文件夾里面的文件
delFolder(path + "/" + tempList[i]);// 再刪除空文件夾
}
}
}
/**
* 復(fù)制單個(gè)文件
*
* @param oldPath
* String 原文件路徑 如:c:/fqf.txt
* @param newPath
* String 復(fù)制后路徑 如:f:/fqf.txt
* @return boolean
*/
public static boolean copyFile(String oldPath, String newPath) {
boolean b=true;
try {
int bytesum = 0;
int byteread = 0;
File oldfile = new File(oldPath);
newPath=newPath+"\\"+oldfile.getName();
File newfile = new File(newPath);
newfile.createNewFile();
newfile.exists();
if (oldfile.exists()) { // 文件存在時(shí)
InputStream inStream = new FileInputStream(oldPath); // 讀入原文件
FileOutputStream fs = new FileOutputStream(newPath);
byte[] buffer = new byte[1444];
while ((byteread = inStream.read(buffer)) != -1) {
bytesum += byteread; // 字節(jié)數(shù) 文件大小
System.out.println(bytesum);
fs.write(buffer, 0, byteread);
}
inStream.close();
}
} catch (Exception e) {
System.out.println("復(fù)制單個(gè)文件操作出錯(cuò)");
b=false;
e.printStackTrace();
}
return b;
}
/**
* 復(fù)制整個(gè)文件夾內(nèi)容
*
* @param oldPath
* String 原文件路徑 如:c:/fqf
* @param newPath
* String 復(fù)制后路徑 如:f:/fqf/ff
* @return boolean
*/
public static boolean copyFolder(String oldPath, String newPath) {
boolean bo=true;
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]);
}
bo=true;
}
} catch (Exception e) {
System.out.println("復(fù)制整個(gè)文件夾內(nèi)容操作出錯(cuò)");
e.printStackTrace();
bo=false;
}
return bo;
}
/**
* 移動(dòng)文件到指定目錄
*
* @param oldPath
* String 如:c:/fqf.txt
* @param newPath
* String 如:d:/fqf.txt
*/
public static boolean moveFile(String oldPath, String newPath) {
boolean b1=copyFile(oldPath, newPath);
boolean b2=delFile(oldPath);
return b1&b2;
}
/**
* 移動(dòng)文件到指定目錄
*
* @param oldPath
* String 如:c:/fqf.txt
* @param newPath
* String 如:d:/fqf.txt
*/
public static boolean moveFolder(String oldPath, String newPath) {
boolean b1=copyFolder(oldPath, newPath);
boolean b2=delFolder(oldPath);
return b1&&b2;
}
}
?? 快捷鍵說(shuō)明
復(fù)制代碼
Ctrl + C
搜索代碼
Ctrl + F
全屏模式
F11
切換主題
Ctrl + Shift + D
顯示快捷鍵
?
增大字號(hào)
Ctrl + =
減小字號(hào)
Ctrl + -