Text replacement demo

package com.na.ip;

import java.io.BufferedReader;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.net.InetAddress;
import java.net.UnknownHostException;
import java.util.Scanner;

public class Main {
    public static void main(String[] args) throws UnknownHostException, IOException {

        String local = "localhost";
        String server = "baseserver";
        String ip = getLocalIp();
        String baseserver = "";
        String folder = getJarDir();
        System.out.println(" The current path is ：" + folder);
        System.out.println(" This machine ip by ：" + ip);
        System.out.println(" Whether it is right (Y/N)?");
        @SuppressWarnings("resource")
        Scanner sc = new Scanner(System.in);
        String str = sc.nextLine();
        if ("Y".equalsIgnoreCase(str)) {
        } else {
            System.out.println(" Enter this machine IP：");
            sc = new Scanner(System.in);
            str = sc.nextLine();
            ip = str;
        }
        System.out.println(" Input basic service machine IP( Multiple needs , separate )：");
        sc = new Scanner(System.in);
        str = sc.nextLine();
        baseserver = str;
        if (args != null && args.length > 0 && args[0].equalsIgnoreCase("vip")) {
            if (args.length > 2 && args[1].equals("vvip")) {
                System.out.println(" Enter source folder path ：");
                sc = new Scanner(System.in);
                str = sc.nextLine();
                folder = str;
            }

            System.out.println(" Enter this machine IP String to replace ：");
            sc = new Scanner(System.in);
            str = sc.nextLine();
            local = str;
            System.out.println(" Input basic service machine IP String to replace ：");
            sc = new Scanner(System.in);
            str = sc.nextLine();
            server = str;
        }
        System.out.println(" This machine ip by ：" + ip + ", Will replace the string ：" + local + "; Basic services ip by :" + baseserver + ", Will replace the string ：" + server);
        System.out.println(" Enter the destination folder path ：");
        sc = new Scanner(System.in);
        str = sc.nextLine();
        String dest = str;

        File dir = new File(folder);
        for (File file : dir.listFiles()) {
            if (!file.isDirectory()) {
                continue;
            }
            String folderName = file.getName();
            File serverFolder = new File(dest + File.separator + folderName);
            if (!serverFolder.exists()) {
                serverFolder.mkdirs();
            }
            for (File configFile : file.listFiles()) {
                if (!configFile.isDirectory()) {
                    continue;
                }
                String configFolderName = configFile.getName();
                File configFolder = new File(serverFolder.getAbsoluteFile() + File.separator + configFolderName);
                if (!configFolder.exists()) {
                    configFolder.mkdirs();
                }
                for (File config : configFile.listFiles()) {
                    if (config.isDirectory()) {
                        continue;
                    }
                    String name = config.getName();
                    File configTxt = new File(configFolder.getAbsoluteFile() + File.separator + name);
                    System.out.println(" Start replacing " + config.getAbsolutePath() + " The contents of the document ：");
                    if(name.contains("ignite") && baseserver.split(",|,").length > 1 
                            && server.split(",|,").length == baseserver.split(",|,").length) {
                        replacTextContent(config.getAbsolutePath(),baseserver.split(",|,"),
                                server.split(",|,"), configTxt.getAbsolutePath());
                        replacTextContent(configTxt.getAbsolutePath(),new String[] { local },
                                new String[] { ip }, configTxt.getAbsolutePath());
                        
                    }else {
                        replacTextContent(config.getAbsolutePath(), new String[] { local, server },
                                new String[] { ip, baseserver }, configTxt.getAbsolutePath());
                    }
                }
            }

        }

    }

    //  obtain jar Catalog 
    public static String getJarDir() {
        File file = getFile();
        if (file == null)
            return null;
        return getFile().getParent();
    }

    public static File getFile() {
        String path = Main.class.getProtectionDomain().getCodeSource().getLocation().getFile();
        try {
            path = java.net.URLDecoder.decode(path, "UTF-8");//  Convert Chinese and spaces 
        } catch (java.io.UnsupportedEncodingException e) {
            return null;
        }
        return new File(path);
    }

    /**
     *  Replace the string in the text file 
     * 
     * @param path
     * @throws IOException
     */
    public static void replacTextContent(String path, String[] srcStr, String[] replaceStr, String dest){
        try {
            //  read 
            File file = new File(path);
            //FileReader in = new FileReader(file);
            BufferedReader bufIn = new BufferedReader(new InputStreamReader(new FileInputStream(file), "UTF-8"));
            //  Memory flow ,  As a temporary stream 
            //CharArrayWriter tempStream = new CharArrayWriter();
            OutputStreamWriter tempStream = new OutputStreamWriter(new FileOutputStream(new File(dest)),"UTF-8");
            //  Replace 
            String line = null;
            while ((line = bufIn.readLine()) != null) {
                //  Replace... In each line ,  Qualified string 
                for (int i = 0; i < srcStr.length; i++) {
                    line = line.replaceAll(srcStr[i], replaceStr[i]);
                }
                //  Write the line to memory 
                tempStream.write(line);
                //  Add line breaks 
                tempStream.append(System.getProperty("line.separator"));
            }
            //  close   Input stream 
            bufIn.close();
            //  Stream in memory   write in   file 
            //FileWriter out = new FileWriter(new File(dest));
            //tempStream.writeTo(out);
            //out.close();
            tempStream.close();
            System.out.println(" End of replacement , Generate file path ：" + dest);
        } catch (Throwable e) {
            System.err.println(" Replace "+path+" File failed ！");
        }
        

    }

    public static String getLocalIp() throws UnknownHostException {
        InetAddress address = InetAddress.getLocalHost();
//        System.out.println(address);//  Get the computer name and ip Address 
        String hostAddress = address.getHostAddress();
//        System.out.println(hostAddress);//  obtain ip Address 
//        String hostName = address.getHostName();
//        System.out.println(hostName);//  Get the computer name 
        return hostAddress;
    }
}

Compile operation ：

javac -encoding utf-9 Main.java

java Main