取文件分为多个文件_JAVA_编程开发_程序员俱乐部

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手动查库生成的文件放在一个txt文件里了，上传ftp要求十万一个txt，就临时写了个工具

class="java" name="code">package com.ailk.ecs.ssp.test;

import java.io.BufferedWriter;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStreamWriter;
import java.util.ArrayList;

import org.apache.commons.io.FileUtils;
import org.apache.commons.io.LineIterator;

public class orderDate {
    public static final int X = 103;

    @SuppressWarnings({ "rawtypes", "unchecked" })
    public static void main(String[] args) throws Exception {
        File file = new File("C:\\Users\\wangcx\\Desktop\\123\\20180322PLUS_04.TXT");
        LineIterator it = FileUtils.lineIterator(file, "UTF-8");
        ArrayList list1 = new ArrayList();
        int filelenth = (int) file.length();
        int i = 1;
        try {
            while (it.hasNext()) {
                String line = it.nextLine();
                list1.add(line + "\r\n");
                if (list1.size() % 100000 == 0) {
                    getfile(list1, i);
                    list1.clear();
                    i++;
                }
            }
            getfile(list1, i);
        }
        finally {

            LineIterator.closeQuietly(it);

        }

    }

    private static void getfile(ArrayList<String> list1, int i) throws IOException {
        BufferedWriter bw = null;
        if (list1.size() == 0) {

        }
        else {

            try {
                System.out.println(list1.size());
                String url = "C:\\Users\\wangcx\\Desktop\\321\\";
                i = i + X;
                File file1 = new File(url + (i > 9 ? "20180328PLUS_" + i : "20180328PLUS_0" + i) + ".txt");// (i < 10 ? Name + "_0" + i : Name + "_" + i)
                FileOutputStream out = new FileOutputStream(file1);
                OutputStreamWriter outwriter = new OutputStreamWriter(out, "UTF-8");
                bw = new BufferedWriter(outwriter);
                bw.write(list1.size() + 2 + "\r\n");
                for (String line : list1) {
                    bw.write(line);
                }
            }
            finally {
                bw.flush();
                bw.close();
            }
        }

    }

}

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