JAVA实现CSV文件的读取

package util.leetcode;

import org.apache.poi.hssf.usermodel.HSSFCell;
import org.apache.poi.hssf.usermodel.HSSFRow;
import org.apache.poi.hssf.usermodel.HSSFSheet;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;

import java.io.*;


public class CSVReader {
    public static void main(String[] args) {

		// 对应文件路径
        String csvFile = "C:\Users\Desktop\***.csv";

        String desXLSFile = csvFile.replace (".csv",".xls");
        String line = "";
        String cvsSplitBy = ",";


        HSSFWorkbook workbook = new HSSFWorkbook ();
        //第二部，在workbook中创建一个sheet对应excel中的sheet
        HSSFSheet sheet = workbook.createSheet("sheet1");
        //第三部，在sheet表中添加表头第0行，老版本的poi对sheet的行列有限制
        HSSFRow row = sheet.createRow(0);

        try (BufferedReader br = new BufferedReader (new FileReader (csvFile))) {

            int currLineNO= 0;
            while ((line = br.readLine ()) != null) {

                String[] country = line.split (cvsSplitBy);

                if (currLineNO == 0){
                    for (String cellVal: country ) {
                        //第四步，创建单元格，设置表头
                        String cellEncodeval = new String (cellVal.getBytes ("utf-8"));
                        System.out.println ("当前表头为："+cellEncodeval);
                        HSSFCell cell = row.createCell(Short.valueOf (currLineNO+""));

                        cell.setCellValue(cellEncodeval);
                        currLineNO++;
                    }
                    currLineNO = 1;
                    continue;
                }

                HSSFRow row1 = sheet.createRow(currLineNO);
                for (int i = 0; i < country.length; i++) {
                    System.out.println ("当前操作元素：行数"+(i+1)+";元素值"+country[i]);
                    row1.createCell(Short.valueOf (i+"")).setCellValue(country[i]);
                }

                currLineNO ++;

                System.out.println ();
            }

        } catch (FileNotFoundException e) {
            e.printStackTrace ();
        } catch (IOException e) {
            e.printStackTrace ();
        }

        File file = new File (desXLSFile);
        if (file.exists()) {
            file.delete();
        }
        //将文件保存到指定的位置
        try {
            file.createNewFile();
            FileOutputStream fileOutputStream = new FileOutputStream (file);


            workbook.write(fileOutputStream);
            System.out.println("写入成功");
        } catch (IOException e) {
            e.printStackTrace();
        }
    }


}