JAVA 0 的突破

使用IntelliJ Idea 开发的一个Java 处理数据文件折行的问题，整体来说功能比较简单的一个java脚本的开发，跨平台的优势可以处理windows和lunix平台的文件折行

package com.company;
import com.sun.javafx.image.BytePixelSetter;

import java.io.BufferedInputStream;
import java.io.BufferedInputStream;
import java.io.BufferedReader;
import java.io.File;
import java.io.FileInputStream;
import java.io.InputStreamReader;
import java.io.BufferedWriter;
import java.io.Reader;
import java.io.FileWriter;
public class Main {

    public static boolean isNumeric(String str){
        for (int i = 0; i < str.length(); i++){
          //  System.out.println(str.charAt(i));
            if (!Character.isDigit(str.charAt(i))){
                return false;
            }
        }
        return true;
    }

    public static void hrwtFilePorcess(String filePath){
        try {
            String encoding="UTF8";
            File file=new File(filePath);
            if(file.isFile() && file.exists()){ //判断文件是否存在
                InputStreamReader read = new InputStreamReader(
                new FileInputStream(file),encoding);//考虑到编码格式
                BufferedReader bufferedReader = new BufferedReader(read);

                String preLine=null;
                String lineTxt = null;
                String nextLineTxt=null;
                StringBuffer sb=new StringBuffer();

                boolean isTR=false;
                int a =0;
                while((lineTxt = bufferedReader.readLine()) != null ){

                    int index =lineTxt.indexOf("|");
                    String id =lineTxt.substring(0,index);
                    if(isNumeric(id)==false && preLine != null){
                        preLine+=lineTxt;
                        isTR=true;
                    }else {
                        isTR=false;
                        if(a!=0)
                        sb.append("\r\n");
                        preLine=lineTxt;
                    }

                    sb.append(lineTxt);
                    a++;

                }

                read.close();
                System.out.println("开始替换");
                BufferedWriter out = new BufferedWriter(new FileWriter(filePath));
                out.write(sb.toString());
                out.flush();
                out.close();
                System.out.println("替换完成："+filePath);
            }else{
                System.out.println("找不到指定的文件");
            }
        } catch (Exception e) {
            System.out.println("读取文件内容出错");
            e.printStackTrace();
        }

    }

    public static void sapFileProcess(String filePath){
        try {
            String encoding="UTF8";
            File file=new File(filePath);
            if(file.isFile() && file.exists()){ //判断文件是否存在
                InputStreamReader read = new InputStreamReader(
                        new FileInputStream(file),encoding);//考虑到编码格式
                BufferedReader bufferedReader = new BufferedReader(read);

                String lineTxt = null;

                StringBuffer sb=new StringBuffer();
                boolean isTR=false;
                int a =0;
                while((lineTxt = bufferedReader.readLine()) != null ) {
                    //5行之后如果不是\现开头就是折行
                    if (a >=6) {
                        int index = lineTxt.indexOf("|");
                        int index2 =lineTxt.indexOf("-------");

                        if (index > 1 && index2!=0 ) {
                            sb.append(lineTxt);

                        } else {
                            sb.append("\r\n");
                            sb.append(lineTxt);

                        }
                    }
                   else
                   {

                       if(a>0){
                           sb.append("\r\n");
                       }
                       sb.append(lineTxt);

                    }
                    a++;
                }
                BufferedWriter out = new BufferedWriter(new FileWriter(filePath));
                out.write(sb.toString());
                out.flush();
                out.close();
                System.out.println("替换完成："+filePath);
            }else{
                System.out.println("找不到指定的文件");
            }
        } catch (Exception e) {
            System.out.println("读取文件内容出错");
            e.printStackTrace();
        }

    }

    public static void main(String[] args) {
	// write your code here

        if(args.length>0){

            for (int i=0 ; i<args.length; i++   )
            {

                System.out.println((i));
                try
                {

                System.out.println(args[i]);
                String configPath=args[i];
                    System.out.println("configPath:"+configPath);

                File file=new File(configPath);
                String encoding="UTF8";
                if(file.isFile() && file.exists()) { //判断文件是否存在
                    InputStreamReader read = new InputStreamReader(
                            new FileInputStream(file),encoding);//考虑到编码格式
                    BufferedReader bufferedReader = new BufferedReader(read);
                    String lineTxt = null;
                    while((lineTxt = bufferedReader.readLine()) != null ){

                        String[] str =lineTxt.split("\\|");
                        String filePath=str[1];
                        String type=str[0];
                        String sap="sap";

                        System.out.println("filePath:"+filePath);
                        System.out.println("type:"+type + ": "+sap+ (type.equals(sap)));

                        if(type.equals(sap)){
                            System.out.println("sapFileProcess:");
                            sapFileProcess(filePath);
                        }else   {
                            System.out.println("hrwtFilePorcess:");

                            hrwtFilePorcess(filePath);
                        }

                    }

                }else   {

                    System.out.println("configPath:"+configPath +"； 配置文件不存在 ");

                }
                }
                catch (Exception e) {
                    System.out.println("读取文件内容出错");
                    e.printStackTrace();
                }

            }
        }else
        {

            System.out.println("请指定配置文件");
        }

        //test
        String filePath = "C:\\Users\\miachen\\Desktop\\data\\hrwt\\20170630-193314-CHN_PERSON.TXT";
        String sapFile = "C:\\Users\\miachen\\Desktop\\data\\sap\\KSB1_201703_2943.txt";

       // sapFileProcess(sapFile);

    }
}