解决Java导入excel大量数据出现内存溢出的问题

 private BufferedReader bReader;

  /**
   * 执行文件入口
   */
  public void execute() {
    try {
      if(!path.endsWith(".csv")){
        logger.info("-----该文件不是以CSV文件，请上传正确的文件格式------");
        return ;
      }
      Long startTime = System.currentTimeMillis();
      logger.info("------开始执行定时任务，时间=" + startTime);
      readCSV(path);
      Long endTime = System.currentTimeMillis();
      logger.info("------结束定时任务，时间=" + endTime + "---耗时="
          + (endTime - startTime));
    } catch (Exception e) {
      e.printStackTrace();
    }
  }

  /**
   * 读取csv并处理数据
   * @param path
   * @throws Exception
   */
  private void readCSV(String path) throws Exception {
    File file = new File(path); 
    try {
      bReader = new BufferedReader(new InputStreamReader(new FileInputStream(file), "gbk"));
       String line = "";
        //忽略第一行标题
        for (int i = 0; i < 1; i++) { 
          line = bReader.readLine(); 
        }
        while((line = bReader.readLine()) != null){
          if (line.trim() != "") {
          //分割开来的即是对应的每个单元格，注意空的情况
            String[] result = line.split(",");

            }
          }
        } 
    } finally {
      if (bReader != null) {
        bReader.close();
      }
    }
  }