java csv读取

import java.io.BufferedReader;
import java.io.FileReader;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;

public class CsvReader {

    private String filename = null;
    private BufferedReader bufferedreader = null;
    public List list = new ArrayList();

    public CsvReader(String filename) throws IOException {
        this.filename = filename;
        bufferedreader = new BufferedReader(new FileReader(filename));
        String stemp;
        while ((stemp = bufferedreader.readLine()) != null) {
            list.add(stemp);
        }
    }

    public List getList() throws IOException {
        return list;
    }

    public int getRowNum() {
        return list.size();
    }

    public int getColNum() {
        if (!list.toString().equals("[]")) {
            if (list.get(0).toString().contains(",")) {
                return list.get(0).toString().split(",").length;
            } else if (list.get(0).toString().trim().length() != 0) {
                return 1;
            } else {
                return 0;
            }
        } else {
            return 0;
        }
    }

    public String getRow(int index) {
        if (this.list.size() != 0)
            return (String) list.get(index);
        else
            return null;
    }

    public String getCol(int index) {
        if (this.getColNum() == 0) {
            return null;
        }
        StringBuffer scol = new StringBuffer();
        String temp = null;
        int colnum = this.getColNum();
        if (colnum > 1) {
            for (Iterator it = list.iterator(); it.hasNext();) {
                temp = it.next().toString();
                scol = scol.append(temp.split(",")[index] + ",");
            }
        } else {
            for (Iterator it = list.iterator(); it.hasNext();) {
                temp = it.next().toString();
                scol = scol.append(temp + ",");
            }
        }
        String str = new String(scol.toString());
        str = str.substring(0, str.length() - 1);
        return str;
    }

    public String getString(int row, int col) {
        String temp = null;
        int colnum = this.getColNum();
        if (colnum > 1) {
            temp = list.get(row).toString().split(",")[col];
        } else if (colnum == 1) {
            temp = list.get(row).toString();
        } else {
            temp = null;
        }
        return temp;
    }

    public void CsvClose() throws IOException {
        this.bufferedreader.close();
    }

    public static void main(String[] args) throws IOException {
        CsvReader cu = new CsvReader("E:/temp1/data1/test1.csv");

        for (int i = 0; i < cu.getRowNum(); i++) {
            String ID = cu.getString(i, 0);
            String NAME = cu.getString(i, 1);
            System.out.println("===ID:" + ID);
            System.out.println("===NAME:" + NAME);
            System.out.println(" ");
        }

        cu.CsvClose();
    }
}