java读写csv文件代码模板

import com.alibaba.fastjson.JSONObject;

import java.io.*;
import java.util.List;


public class CSVUtil {

    public static List readCSV( String filePath ){

    try {
        BufferedReader reader = new BufferedReader(new FileReader( filePath ));
        //第一行信息，为标题信息，不用，如果需要，注释掉
        reader.readLine();
        String line = null;
        while((line=reader.readLine())!=null){
            //CSV格式文件为逗号分隔符文件，这里根据逗号切分
            String item[] = line.split("，")；
            String last = item[item.length-1];
        }
    } catch (Exception e) {
        e.printStackTrace();
    }
    return null;
}

public static void wirteCSV( String filePath , JSonObject datas ){

    int row = 0;
    //csv文件表头
    List columnList = (List) datas.get("columns");
    StringBuilder columns = new StringBuilder("序号");
    for (int i = 0; i < columnList.size(); i++) {
        columns.append(",");
        columns.append( columnList.get(i) );
    }
    List< List