java读写excel文件实现POI解析Excel的方法

package com.zhx.base.utils;

import org.apache.poi.hssf.usermodel.HSSFWorkbook;
import org.apache.poi.ss.usermodel.*;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;

import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.ArrayList;
import java.util.List;

/**
 * POI解析Excel
 */
public class ExcelReaderUtil {

  /**
   * 根据fileType不同读取excel文件
   *
   * @param path
   * @param path
   * @throws IOException
   */
  public static List> readExcel(String path) {
    String fileType = path.substring(path.lastIndexOf(".") + 1);
    // return a list contains many list
    List> lists = new ArrayList>();
    //读取excel文件
    InputStream is = null;
    try {
      is = new FileInputStream(path);
      //获取工作薄
      Workbook wb = null;
      if (fileType.equals("xls")) {
        wb = new HSSFWorkbook(is);
      } else if (fileType.equals("xlsx")) {
        wb = new XSSFWorkbook(is);
      } else {
        return null;
      }

      //读取第一个工作页sheet
      Sheet sheet = wb.getSheetAt(0);
      //第一行为标题
      for (Row row : sheet) {
        ArrayList list = new ArrayList();
        for (Cell cell : row) {
          //根据不同类型转化成字符串
          cell.setCellType(Cell.CELL_TYPE_STRING);
          list.add(cell.getStringCellValue());
        }
        lists.add(list);
      }
    } catch (IOException e) {
      e.printStackTrace();
    } finally {
      try {
        if (is != null) is.close();
      } catch (IOException e) {
        e.printStackTrace();
      }
    }
    return lists;
  }


  /**
   * 创建Excel.xls
   * @param lists 需要写入xls的数据
   * @param titles 列标题
   * @param name 文件名
   * @return
   * @throws IOException
   */
  public static Workbook creatExcel(List> lists, String[] titles, String name) throws IOException {
    System.out.println(lists);
    //创建新的工作薄
    Workbook wb = new HSSFWorkbook();
    // 创建第一个sheet（页），并命名
    Sheet sheet = wb.createSheet(name);
    // 手动设置列宽。第一个参数表示要为第几列设；，第二个参数表示列的宽度，n为列高的像素数。
    for(int i=0;i> lists = readExcel(path);
    for (List list : lists) {
      for (String strs : list) {
        System.out.println(strs);
      }
    }
  }
}

 
    
      org.apache.poi
      poi-excelant
      3.14
    

public Map insEm(File file) throws FileNotFoundException {
    String companyName = "";
    String epid = "";
    List

    insert into qf_employee_info(epid,employee_id,user_name,phone,user_email,status,create_time,creater,create_type) value
    
      (#{item.epid},"",#{item.name},#{item.identify},"",1,now(),"",2)