Java tutorial
//package com.java2s; //License from project: Apache License import java.io.BufferedInputStream; import java.io.BufferedOutputStream; import java.io.File; import java.io.FileInputStream; import java.io.FileNotFoundException; import java.io.FileOutputStream; import java.io.IOException; public class Main { public static void copyFile(String sourcePath, String toPath) { File sourceFile = new File(sourcePath); File targetFile = new File(toPath); createDipPath(toPath); try { BufferedInputStream inBuff = null; BufferedOutputStream outBuff = null; try { inBuff = new BufferedInputStream(new FileInputStream(sourceFile)); outBuff = new BufferedOutputStream(new FileOutputStream(targetFile)); byte[] b = new byte[1024 * 5]; int len; while ((len = inBuff.read(b)) != -1) { outBuff.write(b, 0, len); } outBuff.flush(); } finally { if (inBuff != null) inBuff.close(); if (outBuff != null) outBuff.close(); } } catch (FileNotFoundException e) { // TODO Auto-generated catch block e.printStackTrace(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } } public static void createDipPath(String file) { String parentFile = file.substring(0, file.lastIndexOf("/")); File file1 = new File(file); File parent = new File(parentFile); if (!file1.exists()) { parent.mkdirs(); try { file1.createNewFile(); } catch (IOException e) { } } } }