java 从txt读数据 往excel写数据

package com.zyq.read;

import java.io.BufferedReader;

import java.io.File;

import java.io.FileInputStream;

import java.io.IOException;

import java.io.InputStreamReader;

import java.util.ArrayList;

import jxl.Workbook;

import jxl.write.Label;

import jxl.write.WritableSheet;

import jxl.write.WritableWorkbook;

import jxl.write.WriteException;

public class CreateExcelForDD {

public static void main(String[] args) {

/*

* 1.打开文件

* 2.生成名为“第一页”的工作表，参数0表示这是第一页

* 3.读取"客户资料.txt"文件内容

* 4.读取的每行字符串

* 5.根据~分割字符串

* 6.将分割后的字符子串放到aList中

* 7.将aList放到大的arrayList中

* 8.遍历arrayList，将其中的数据写入到xls表中

* 9.将数据写到j列i行

*/

WritableWorkbook book = null;

try {

book = Workbook.createWorkbook(new File("F:\\客户资料.xls"));// 1

WritableSheet sheet = book.createSheet("第一页", 0); // 2

ArrayList<ArrayList<String>> arrayList = new ArrayList<>();

try {

String eccoding = "GBK";

File file = new File("F:\\客户资料.txt");// 3

if (file.isFile() && file.exists()) {

InputStreamReader reader = new InputStreamReader(new FileInputStream(file), eccoding);

BufferedReader bufferedReader = new BufferedReader(reader);

String lineTxt = null;// 4

while ((lineTxt = bufferedReader.readLine()) != null) {

ArrayList<String> aList = new ArrayList<>();

String[] strings = lineTxt.split("~");// 5

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

aList.add(strings[i]);// 6

}

arrayList.add(aList);// 7

}

} else

System.out.println("file is not exist or file is not a file");

} catch (Exception e) {

System.out.println(e);

}

for (int i = 0; i < arrayList.size(); i++) {// 8

ArrayList<String> aList2 = arrayList.get(i);

for (int j = 0; j < aList2.size(); j++) {

Label label = new Label(j, i, aList2.get(j));// 9

sheet.addCell(label);

}

}

book.write();

} catch (Exception e) {

System.out.println(e);

} finally {

try {

book.close();

} catch (WriteException e) {

e.printStackTrace();

} catch (IOException e) {

e.printStackTrace();

}

}

}

}