读取csv文件

package com.mdl.excel.csv;import java.io.BufferedReader;import java.io.File;import java.io.FileInputStream;import java.io.FileNotFoundException;import java.io.IOException;import java.io.InputStreamReader;import java.util.StringTokenizer;public class ReadCSV {    public static void main(String[] args) {        try {            File csv = new File("E:/my document/poi-excel/excle_file/mongodb.csv"); // CSV文件            //直接使用BufferedReader读取数据会出现乱码            // BufferedReader br = new BufferedReader(new FileReader(csv));            //通过InputStreamReader解决乱码问题            InputStreamReader isr = new InputStreamReader(new FileInputStream(csv), "GBK");            BufferedReader br = new BufferedReader(isr);            // 读取直到最后一行            String line = "";            while ((line = br.readLine()) != null) {                // String lines = new String(line.getBytes(),"GB2312");                // 把一行数据分割成多个字段                StringTokenizer st = new StringTokenizer(line, ",");                while (st.hasMoreTokens()) {                    // 每一行的多个字段用TAB隔开表示                    System.out.print(st.nextToken() + "###");                }                System.out.println();            }            br.close();        } catch (FileNotFoundException e) {            // 捕获File对象生成时的异常            e.printStackTrace();        } catch (IOException e) {            // 捕获BufferedReader对象关闭时的异常            e.printStackTrace();        }    }}