//读取CSV文件

    public void readCsvFile(String fileName) throws IOException {

        BufferedReader  bufferedReader=null;

        try{

           bufferedReader=new BufferedReader(new FileReader(fileName));

           String line=null;

           while(null!=(line=bufferedReader.readLine())){

               String[] lines = line.split(",");

               logger.info("这就是文件的内容"+ Arrays.toString(lines));

           }

        }catch (IOException e){

           throw  new IOException(e);

        }finally {

           if(bufferedReader!=null){

               try {

                   bufferedReader.close();

               } catch (IOException e) {

                   logger.error("输入流关流出现异常",e);

               }

           }

        }

    }

    //生产CSV文件

    public static void writerCsvFile(String fileName, List<String[]> list) throws IOException {

        BufferedWriter   bufferedWriter=null;

        try{

            bufferedWriter= new BufferedWriter(new OutputStreamWriter(new FileOutputStream(fileName),"GBK"));

            for (String[] s:list) {

                for (int i=0;i<s.length;i++){

                    bufferedWriter.write(s[i]);

                    bufferedWriter.write(",");

                }

                bufferedWriter.newLine();//记得换行

            }

        }catch (IOException e){

            throw  new IOException(e);

        }finally {

            if(bufferedWriter!=null){

                try {

                    bufferedWriter.close();

                } catch (IOException e2) {

                    logger.error("输出流关流出现异常",e2);

                }

            }

        }

    }