Java FileInputStream Copy copyFile(String source, String target)

Description

copy File

License

Apache License

Declaration

public static boolean copyFile(String source, String target) 

Method Source Code

//package com.java2s;
//License from project: Apache License 

import java.io.*;

public class Main {
    public static boolean copyFile(String source, String target) {
        boolean isSuc = false;
        InputStream in = null;//w w  w.ja  va 2s.  c  o  m
        FileOutputStream out = null;
        try {
            int bytesum = 0;
            int byteread = 0;
            File oldfile = new File(source);
            newFile(target);
            if (oldfile.exists()) {
                in = new FileInputStream(source);
                out = new FileOutputStream(target, false);// no append,
                // overwrite old.
                byte[] buffer = new byte[4096];
                while ((byteread = in.read(buffer)) != -1) {
                    bytesum += byteread;
                    out.write(buffer, 0, byteread);
                }
                isSuc = true;
            } else {
                System.err.println("File " + source + " not exists");
            }

        } catch (Exception e) {
            System.err.println("Exception occur when copying a file");
            e.printStackTrace();
        } finally {
            try {
                if (in != null) {
                    in.close();
                }
            } catch (IOException e) {
            }
            try {
                if (out != null) {
                    out.close();
                }
            } catch (IOException e) {
            }
        }
        return isSuc;
    }

    public static boolean copyFile(InputStream inputStream, String target) {
        boolean isSuc = false;
        FileOutputStream out = null;
        try {
            int bytesum = 0;
            int byteread = 0;
            newFile(target);
            out = new FileOutputStream(target, false);
            byte[] buffer = new byte[4096];
            while ((byteread = inputStream.read(buffer)) != -1) {
                bytesum += byteread;
                out.write(buffer, 0, byteread);
            }
            isSuc = true;
        } catch (Exception e) {
            System.err.println("Exception occur when copying a file");
            e.printStackTrace();
        } finally {
            try {
                if (inputStream != null) {
                    inputStream.close();
                }
            } catch (IOException e) {
            }
            try {
                if (out != null) {
                    out.close();
                }
            } catch (IOException e) {
            }
        }
        return isSuc;
    }

    public static boolean newFile(String fullName) {
        try {
            File file = new File(fullName);
            if (!file.exists()) {
                if (!file.getParentFile().exists()) {
                    file.getParentFile().mkdirs();
                }
                file.createNewFile();
            }
        } catch (Exception e) {
            System.out.println("error occur when creating folder");
            e.printStackTrace();
            return false;
        }
        return true;
    }

    public static boolean newFile(String fullName, String text) {

        try {
            newFile(fullName);
            FileWriter out = new FileWriter(fullName, false);
            out.write(text);
            out.close();
        } catch (Exception e) {
            System.out.println("error occur when creating file");
            e.printStackTrace();
            return false;
        }
        return true;

    }

    public static void createNewFile(File f) throws IOException {
        if (f.exists()) {
            f.delete();
        }
        f.getParentFile().mkdirs();
        f.createNewFile();
    }
}

Related

1. copyFile(String source, String dest)
2. copyFile(String source, String destination)
3. copyFile(String source, String destination)
4. copyFile(String source, String destination)
5. copyFile(String source, String destination)
6. copyFile(String source, String targetDirectory, String filesep)
7. copyFile(String sourceFile, String destDir, String newFileName)
8. copyFile(String sourceFile, String destFile)
9. copyFile(String sourcefile, String targetfile)