package com.abin.test.result;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
//以前做Java很少会用到文件，原因之一是我做的项目的那一块很少用到文件操作，只用过文件上传，应我同学的要求，今天帮他实现了一下，放在这里
//以备以后再用的着的话好找，这些都是参考网上好多人的心血而成的。
public class CopyFile1 {
//复制文件并且改名：
public static void doCopyFile(String fromPath ,String toPath) throws IOException{
String toNewPath=toPath+fromPath.subSequence(fromPath.lastIndexOf("\\")+1, fromPath.length());
File srcFile = new File(fromPath);
File destFile = new File(toNewPath);
FileInputStream input = new FileInputStream(srcFile);
try {
FileOutputStream output = new FileOutputStream(destFile);
try {
byte[] buffer = new byte[4096];
int n = 0;
while (-1 != (n = input.read(buffer))) {
output.write(buffer, 0, n);
}
} finally {
try {
if (output != null) {
output.close();
}
} catch (IOException ioe) {
// ignore
}
}
} finally {
try {
if (input != null) {
input.close();
}
} catch (IOException ioe) {
// ignore
}
}
}
//移动文件并且改名：
public static void doCopyFileAndUpdateFileName(String fromPath ,String toPath,String newName) throws
IOException{
String toNewPath=toPath+newName;
File srcFile = new File(fromPath);
File destFile = new File(toNewPath);
FileInputStream input = new FileInputStream(srcFile);
try {
FileOutputStream output = new FileOutputStream(destFile);
try {
byte[] buffer = new byte[4096];
int n = 0;
while (-1 != (n = input.read(buffer))) {
output.write(buffer, 0, n);
}
} finally {
try {
if (output != null) {
output.close();
}
} catch (IOException ioe) {
// ignore
}
}
} finally {
try {
if (input != null) {
input.close();
}
} catch (IOException ioe) {
// ignore
}
}
}
//删除文件：
public static void doDeleteFile(String path) throws IOException{
File file=new File(path);
if(file.exists()||file.isFile()||!file.isDirectory()){
file.delete();
file.deleteOnExit();
}
}
//修改文件名：
public static void doUpdateFileName(String path1,String newName1) throws IOException{
String path=path1.substring(0, path1.lastIndexOf("\\"))+"\\";
System.out.println(path);
File newFile=new File(path+newName1);
File file=new File(path1);
file.renameTo(newFile);
}
public static void main(String args[])throws Exception {
String fromPath="e:\\love.jpg";
String toPath="e:\\demo\\";
String newName="abin.jpg";
String newName1="abin.jpg";
String path="e:\\demo\\love.jpg";
String path1="e:\\demo\\love.jpg";
// new CopyFile1().doCopyFile(fromPath, toPath);
// new CopyFile1().doCopyFileAndUpdateFileName(fromPath, toPath, newName);
// new CopyFile1().doDeleteFile(path);
new CopyFile1().doUpdateFileName(path1, newName1);
CopyFile1 aaa=new CopyFile1();
aaa.doCopyFile(fromPath, toPath);
}
}