java 读写csv

import java.io.IOException;
import java.nio.charset.Charset;

import com.csvreader.CsvReader;
import com.csvreader.CsvWriter;

public class CsvUtil {
     /**
     * 读取CSV文件
     * @throws Exception 
     */
     public static void  readeCsv() throws Exception{ 
         CsvReader r = new CsvReader("d:/test2.csv", ',',Charset.forName("GBK"));
            //读取表头
            while(r.readHeaders()){
                System.out.println(r.getRawRecord());
            }
            //逐条读取记录，直至读完
            while (r.readRecord()) {
                //读取一条记录
                System.out.println(r.getRawRecord());
                //按列名读取这条记录的值
                System.out.println(r.get("Name"));
                System.out.println(r.get("class"));
                System.out.println(r.get("number"));
                System.out.println(r.get("sex"));
            }
            r.close();}
     
     /**
      * 写入CSV文件
      */
     public static void writeCsv(){
         try {
             
             String csvFilePath = "d:/test2.csv";
              CsvWriter wr =new CsvWriter(csvFilePath, ',',Charset.forName("GBK"));
//              String[] contents = {"aaaaa","bbbbb","cccccc","ddddddddd"};
              String[] contents = {"Lilymm","五一","90","女"};   
              String[] contents2 = {"Lilyo","五一","90","女"};   
              wr.writeRecord(contents);
              wr.writeRecord(contents2);
              wr.close();
          } catch (IOException e) {
             e.printStackTrace();
          }
     }
     
     public static void main(String[] args) {
        writeCsv();
         try {
            readeCsv();
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}

<dependency>
            <groupId>net.sourceforge.javacsv</groupId>
            <artifactId>javacsv</artifactId>
            <version>2.0</version>
        </dependency>