excel表格数据导入导出

/**
 * 导出数据到excel表格
 * Created by shenjianhua on 2018-12-28
 */

package com.luer.comm.excel;

import java.io.FileOutputStream;
import org.apache.poi.hssf.usermodel.HSSFCell;
import org.apache.poi.hssf.usermodel.HSSFCellStyle;
import org.apache.poi.hssf.usermodel.HSSFFont;
import org.apache.poi.hssf.usermodel.HSSFRow;
import org.apache.poi.hssf.usermodel.HSSFSheet;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;
import org.apache.poi.hssf.util.CellRangeAddress;
import org.apache.poi.hssf.util.HSSFColor;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;



/**
 * 导出数据到excel表格
 * Created by shenjianhua on 2018-12-28
 */
@RestController
@RequestMapping("exportExcel")
public class ExportexcelUtil {

    /*
    *
    * 常用组件：

    HSSFWorkbook    excel的文档对象

    HSSFSheet       excel的表单

    HSSFRow        excel的行

    HSSFCell       excel的格子单元

    HSSFFont        excel字体

    样式：

    HSSFCellStyle    cell样式
    *
    * */
    public static void main(String [] args) throws Exception {

        //excel的表单名
        String sheetName = "操作员数据表1";
        //excel的标题名
        String titleName = "操作员数据表2";
        //提示 没啥用
        String fileName = "操作员数据表3";
        //int columnNumber = 3;
        int columnNumber = 9;
        //int[] columnWidth = { 10, 20, 30 };
        //int[] columnWidth = {40,20,20,20,20,20,20,20,20};
        String[][] dataList = { { "4e7a2bbe5cc24a63b214b3824596cd543","2018-12-27 10:34:19","2018-12-27 10:34:19","usernamedsfsdsf","passwrodsdlkjflsd","nicknamesdgfds","18896876323","1324325432.qq.com","remarkdsgfdg"},
                { "4e7a2bbe5cc24a63b214b38296cd543","2018-12-27 10:34:19","2018-12-27 10:34:19","usernamedsfsdsf","passwrodsdlkjflsd","nicknamesdgfds","18896876323","1324325432.qq.com","remarkdsgfdg" },
                { "9198a9f1acf74b648b50eee69d312276","2018-12-27 10:34:19","2018-12-27 10:34:19","usernamedsfsdsf","passwrodsdlkjflsd","nicknamesdgfds","18896876323","1324325432.qq.com","remarkdsgfdg"},
                { "9198a9f1acf14b648b50eee69d312276","2018-12-27 10:34:19","2018-12-27 10:34:19","usernamedsfsdsf","passwrodsdlkjflsd","nicknamesdgfds","18896876323","1324325432.qq.com","remarkdsgfdg"},
                { "9198a9f1acf24b648b50eee69d312276","2018-12-27 10:34:19","2018-12-27 10:34:19","usernamedsfsdsf","passwrodsdlkjflsd","nicknamesdgfds","18896876323","1324325432.qq.com","remarkdsgfdg"},
                { "9198a9f1acf34b648b50eee69d312276","2018-12-27 10:34:19","2018-12-27 10:34:19","usernamedsfsdsf","passwrodsdlkjflsd","nicknamesdgfds","18896876323","1324325432.qq.com","remarkdsgfdg"},
                { "9198a9f1acf44b648b50eee69d312276","2018-12-27 10:34:19","2018-12-27 10:34:19","usernamedsfsdsf","passwrodsdlkjflsd","nicknamesdgfds","18896876323","1324325432.qq.com","remarkdsgfdg"},
                { "9198a9f1acf54b648b50eee69d312276","2018-12-27 10:34:19","2018-12-27 10:34:19","usernamedsfsdsf","passwrodsdlkjflsd","nicknamesdgfds","18896876323","1324325432.qq.com","remarkdsgfdg"},
                { "9198a9f1acf64b648b50eee69d312276","2018-12-27 10:34:19","2018-12-27 10:34:19","usernamedsfsdsf","passwrodsdlkjflsd","nicknamesdgfds","18896876323","1324325432.qq.com","remarkdsgfdg"},
                { "9198a9f1acf84b648b50eee69d312276","2018-12-27 10:34:19","2018-12-27 10:34:19","usernamedsfsdsf","passwrodsdlkjflsd","nicknamesdgfds","18896876323","1324325432.qq.com","remarkdsgfdg"},
                { "9198a9f1acf94b648b50eee69d312276","2018-12-27 10:34:19","2018-12-27 10:34:19","usernamedsfsdsf","passwrodsdlkjflsd","nicknamesdgfds","18896876323","1324325432.qq.com","remarkdsgfdg"},
                { "9198a9f1acfw4b648b50eee69d312276","2018-12-27 10:34:19","2018-12-27 10:34:19","usernamedsfsdsf","passwrodsdlkjflsd","nicknamesdgfds","18896876323","1324325432.qq.com","remarkdsgfdg"}
        };
        String[] columnName = { "操作员id", "创造时间", "更新时间","登录账号","登录密码","昵称","手机号码","邮箱","注释" };
        new ExportexcelUtil().ExportNoResponse(sheetName, titleName,
                columnNumber, /*columnWidth,*/ columnName, dataList, fileName);
    }
    /*
    * 导出数据到excel表格
    * */

    /*
    * String titleName: excel标题名
    *
    * String sheetName: excel表单名
    *
    * int columnNumber: excel标题名的数量
    *
    * String[] columnName：excel标题名成
    *
    * String[][] dataList: 导入的数据集合
    * */

    @RequestMapping("/export")
    public void ExportNoResponse( String titleName,String sheetName,
                                  int columnNumber, /*int[] columnWidth,*/
                                 String[] columnName, String[][] dataList,String fileName) throws Exception {
        int flag = 0;
        int[] columnWidth=new int[columnNumber];
        for(flag=0;flag<columnNumber;flag++){
            if(flag==0){
                columnWidth[flag] = 40;
                //System.out.println("columnWidth[i]: "+columnWidth[flag]);
            }else{

                columnWidth[flag] = 30;
                //System.out.println("columnWidth[i]: "+columnWidth[flag]);
            }
        }

        if (columnNumber == columnWidth.length&& columnWidth.length == columnName.length) {
            // 第一步，创建一个webbook，对应一个Excel文件
            HSSFWorkbook wb = new HSSFWorkbook();
            // 第二步，在webbook中添加一个sheet,对应Excel文件中的sheet
            HSSFSheet sheet = wb.createSheet(sheetName);
            // sheet.setDefaultColumnWidth(15); //统一设置列宽
            for (int i = 0; i < columnNumber; i++)
            {
                for (int j = 0; j <= i; j++)
                {
                    if (i == j)
                    {
                        sheet.setColumnWidth(i, columnWidth[j] * 256); // 单独设置每列的宽
                    }
                }
            }
            // 创建第0行 也就是标题
            HSSFRow row1 = sheet.createRow((int) 0);
            row1.setHeightInPoints(50);// 设备标题的高度
            // 第三步创建标题的单元格样式style2以及字体样式headerFont1
            HSSFCellStyle style2 = wb.createCellStyle();
            style2.setAlignment(HSSFCellStyle.ALIGN_CENTER);
            style2.setVerticalAlignment(HSSFCellStyle.VERTICAL_CENTER);
            style2.setFillForegroundColor(HSSFColor.LIGHT_TURQUOISE.index);
            style2.setFillPattern(HSSFCellStyle.SOLID_FOREGROUND);
            HSSFFont headerFont1 = (HSSFFont) wb.createFont(); // 创建字体样式
            headerFont1.setBoldweight(HSSFFont.BOLDWEIGHT_BOLD); // 字体加粗
            headerFont1.setFontName("黑体"); // 设置字体类型
            headerFont1.setFontHeightInPoints((short) 15); // 设置字体大小
            style2.setFont(headerFont1); // 为标题样式设置字体样式

            HSSFCell cell1 = row1.createCell(0);// 创建标题第一列
            sheet.addMergedRegion(new CellRangeAddress(0, 0, 0,
                    columnNumber - 1)); // 合并第0到第17列
            cell1.setCellValue(titleName); // 设置值标题
            cell1.setCellStyle(style2); // 设置标题样式

            // 创建第1行 也就是表头
            HSSFRow row = sheet.createRow((int) 1);
            row.setHeightInPoints(37);// 设置表头高度

            // 第四步，创建表头单元格样式 以及表头的字体样式
            HSSFCellStyle style = wb.createCellStyle();
            style.setWrapText(true);// 设置自动换行
            style.setAlignment(HSSFCellStyle.ALIGN_CENTER);
            style.setVerticalAlignment(HSSFCellStyle.VERTICAL_CENTER); // 创建一个居中格式

            style.setBottomBorderColor(HSSFColor.BLACK.index);
            style.setBorderBottom(HSSFCellStyle.BORDER_THIN);
            style.setBorderLeft(HSSFCellStyle.BORDER_THIN);
            style.setBorderRight(HSSFCellStyle.BORDER_THIN);
            style.setBorderTop(HSSFCellStyle.BORDER_THIN);

            HSSFFont headerFont = (HSSFFont) wb.createFont(); // 创建字体样式
            headerFont.setBoldweight(HSSFFont.BOLDWEIGHT_BOLD); // 字体加粗
            headerFont.setFontName("黑体"); // 设置字体类型
            headerFont.setFontHeightInPoints((short) 10); // 设置字体大小
            style.setFont(headerFont); // 为标题样式设置字体样式

            // 第四.一步，创建表头的列
            for (int i = 0; i < columnNumber; i++)
            {
                HSSFCell cell = row.createCell(i);
                cell.setCellValue(columnName[i]);
                cell.setCellStyle(style);
            }

            // 第五步，创建单元格，并设置值
            for (int i = 0; i < dataList.length; i++)
            {
                row = sheet.createRow((int) i + 2);
                // 为数据内容设置特点新单元格样式1 自动换行 上下居中
                HSSFCellStyle zidonghuanhang = wb.createCellStyle();
                zidonghuanhang.setWrapText(true);// 设置自动换行
                zidonghuanhang
                        .setVerticalAlignment(HSSFCellStyle.VERTICAL_CENTER); // 创建一个居中格式

                // 设置边框
                zidonghuanhang.setBottomBorderColor(HSSFColor.BLACK.index);
                zidonghuanhang.setBorderBottom(HSSFCellStyle.BORDER_THIN);
                zidonghuanhang.setBorderLeft(HSSFCellStyle.BORDER_THIN);
                zidonghuanhang.setBorderRight(HSSFCellStyle.BORDER_THIN);
                zidonghuanhang.setBorderTop(HSSFCellStyle.BORDER_THIN);

                // 为数据内容设置特点新单元格样式2 自动换行 上下居中左右也居中
                HSSFCellStyle zidonghuanhang2 = wb.createCellStyle();
                zidonghuanhang2.setWrapText(true);// 设置自动换行
                zidonghuanhang2
                        .setVerticalAlignment(HSSFCellStyle.VERTICAL_CENTER); // 创建一个上下居中格式
                zidonghuanhang2.setAlignment(HSSFCellStyle.ALIGN_CENTER);// 左右居中

                // 设置边框
                zidonghuanhang2.setBottomBorderColor(HSSFColor.BLACK.index);
                zidonghuanhang2.setBorderBottom(HSSFCellStyle.BORDER_THIN);
                zidonghuanhang2.setBorderLeft(HSSFCellStyle.BORDER_THIN);
                zidonghuanhang2.setBorderRight(HSSFCellStyle.BORDER_THIN);
                zidonghuanhang2.setBorderTop(HSSFCellStyle.BORDER_THIN);
                HSSFCell datacell = null;
                for (int j = 0; j < columnNumber; j++)
                {
                    datacell = row.createCell(j);
                    datacell.setCellValue(dataList[i][j]);
                    datacell.setCellStyle(zidonghuanhang2);
                }
            }

            // 第六步，将文件存到指定位置
            try {
                FileOutputStream fout = new FileOutputStream("D:operator.xls");
                wb.write(fout);
                String str = "导出" + fileName + "成功！";
                System.out.println(str);
                fout.close();
            } catch (Exception e) {
                e.printStackTrace();
                String str1 = "导出" + fileName + "失败！";
                System.out.println(str1);
            }
        } else {
            System.out.println("列数目长度名称三个数组长度要一致");
        }

    }

}

/**
 * Excel 导入到mysql
 * Created by shenjianhua on 2018-12-28
 */

package com.luer.comm.excel;

import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.List;

import com.luer.operator.bean.Operator;
import com.luer.operator.service.OperatorService;
import org.apache.log4j.Logger;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;
import org.apache.poi.ss.usermodel.Cell;
import org.apache.poi.ss.usermodel.Row;
import org.apache.poi.ss.usermodel.Sheet;
import org.apache.poi.ss.usermodel.Workbook;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.*;
import org.springframework.web.multipart.MultipartFile;

/**
 * Excel 导入到mysql
 * Created by shenjianhua on 2019-1-3
 */
@RestController
@RequestMapping("/importExcel")
public class ImportexcelUtil {

    private static Logger logger = Logger.getLogger(ImportexcelUtil.class);
    private final static String xls = "xls";
    private final static String xlsx = "xlsx";

    /**
     * 读入excel文件，解析后返回
     *
     * @param
     * @throws IOException
     */


    @Autowired
    OperatorService operatorService;

    /*
    * 读取excel数据导入数据库
    * */
    @ResponseBody
    @RequestMapping("/readExcel")
    public List<String[]> readExcel(MultipartFile file) throws Exception {
        //检查文件
        checkFile(file);
        //获得Workbook工作薄对象
        Workbook workbook = getWorkBook(file);
        //创建返回对象，把每行中的值作为一个数组，所有行作为一个集合返回
        List<String[]> list = new ArrayList<String[]>();
        if (workbook != null) {
            for (int sheetNum = 0; sheetNum < workbook.getNumberOfSheets(); sheetNum++) {
                //获得当前sheet工作表
                Sheet sheet = workbook.getSheetAt(sheetNum);
                if (sheet == null) {
                    continue;
                }
                //获得当前sheet的开始行
                int firstRowNum = sheet.getFirstRowNum();
                //获得当前sheet的结束行
                int lastRowNum = sheet.getLastRowNum();
                //循环除了第一行的所有行
                for (int rowNum = firstRowNum + 1; rowNum <= lastRowNum; rowNum++) {
                    //获得当前行
                    Row row = sheet.getRow(rowNum);
                    if (row == null) {
                        continue;
                    }
                    //获得当前行的开始列
                    int firstCellNum = row.getFirstCellNum();
                    //获得当前行的列数
                    int lastCellNum = row.getPhysicalNumberOfCells();
                    String[] cells = new String[row.getPhysicalNumberOfCells()];
                    //循环当前行
                    for (int cellNum = firstCellNum; cellNum < lastCellNum; cellNum++) {
                        Cell cell = row.getCell(cellNum);
                        cells[cellNum] = getCellValue(cell);
                    }
                    list.add(cells);
                }

            }
            //workbook.close();
        }

        /*
        * 封装对象存入数据库
        * 
        * 修改字段的遍历次数
        * */
        for(int k=1;k<9;k++) {
            Operator operator = new Operator();
            if(null != list.get(k)[0]){
                operator.setId(list.get(k)[0]);
            }
            if(null != list.get(k)[1]){
                operator.setCreateTime(new SimpleDateFormat("yyyy-MM-dd HH:mm:ss").parse(list.get(k)[1]));
               /* String string = "2016-10-24 21:59:06";
                SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
                System.out.println(sdf.parse(list.get(k)[1]));*/
            }
            if(null != list.get(k)[2]){
                operator.setCreateTime(new SimpleDateFormat("yyyy-MM-dd HH:mm:ss").parse(list.get(k)[1]));
            }
            if(null != list.get(k)[3]){
                operator.setUsername(list.get(3)[3]);
            }
            if(null != list.get(k)[4]){
                operator.setPassword(list.get(k)[4]);
            }
            if(null != list.get(k)[5]){
                operator.setNickname(list.get(k)[5]);
            }
            if(null != list.get(k)[6]){
                operator.setPhoneNumber(list.get(k)[6]);
            }
            if(null != list.get(k)[7]){
                operator.setEmail(list.get(k)[8]);
            }
            if(null != list.get(k)[8]){
                operator.setRemark(list.get(k)[8]);
            }
            operatorService.insertOperator(operator);
        }

        return list;
    }


    @ResponseBody
    @RequestMapping("/readExcel2")
    public String[] readExcel2(MultipartFile file) throws IOException {
        //检查文件
        checkFile(file);
        //获得Workbook工作薄对象
        Workbook workbook = getWorkBook(file);
        //创建返回对象，把每行中的值作为一个数组，所有行作为一个集合返回
        List<String[]> list = new ArrayList<String[]>();
        if (workbook != null) {
            for (int sheetNum = 0; sheetNum < workbook.getNumberOfSheets(); sheetNum++) {
                //获得当前sheet工作表
                Sheet sheet = workbook.getSheetAt(sheetNum);
                if (sheet == null) {
                    continue;
                }
                //获得当前sheet的开始行
                int firstRowNum = sheet.getFirstRowNum();
                //获得当前sheet的结束行
                int lastRowNum = sheet.getLastRowNum();
                //循环除了第一行的所有行
                for (int rowNum = firstRowNum + 1; rowNum <= lastRowNum; rowNum++) {
                    //获得当前行
                    Row row = sheet.getRow(rowNum);
                    if (row == null) {
                        continue;
                    }
                    //获得当前行的开始列
                    int firstCellNum = row.getFirstCellNum();
                    //获得当前行的列数
                    int lastCellNum = row.getPhysicalNumberOfCells();
                    String[] cells = new String[row.getPhysicalNumberOfCells()];
                    //循环当前行
                    for (int cellNum = firstCellNum; cellNum < lastCellNum; cellNum++) {
                        Cell cell = row.getCell(cellNum);
                        cells[cellNum] = getCellValue(cell);
                    }
                    list.add(cells);
                }
            }
            // workbook.close();
        }

        return list.get(0);
    }

    public static void checkFile(MultipartFile file) throws IOException {
        //判断文件是否存在
        if (null == file) {
            logger.error("文件不存在！");
            throw new FileNotFoundException("文件不存在！");
        }
        //获得文件名
        String fileName = file.getOriginalFilename();
        //判断文件是否是excel文件
        if (!fileName.endsWith(xls) && !fileName.endsWith(xlsx)) {
            logger.error(fileName + "不是excel文件");
            throw new IOException(fileName + "不是excel文件");
        }
    }

    public static Workbook getWorkBook(MultipartFile file) {
        //获得文件名
        String fileName = file.getOriginalFilename();
        //创建Workbook工作薄对象，表示整个excel
        Workbook workbook = null;
        try {
            //获取excel文件的io流
            InputStream is = file.getInputStream();
            //根据文件后缀名不同(xls和xlsx)获得不同的Workbook实现类对象
            if (fileName.endsWith(xls)) {
                //2003
                workbook = new HSSFWorkbook(is);
            } else if (fileName.endsWith(xlsx)) {
                //2007 及2007以上
                workbook = new XSSFWorkbook(is);
            }
        } catch (IOException e) {
            logger.info(e.getMessage());
        }
        return workbook;
    }

    public static String getCellValue(Cell cell) {
        String cellValue = "";
        if (cell == null) {
            return cellValue;
        }
        //把数字当成String来读，避免出现1读成1.0的情况
        if (cell.getCellType() == Cell.CELL_TYPE_NUMERIC) {
            cell.setCellType(Cell.CELL_TYPE_STRING);
        }
        //判断数据的类型
        switch (cell.getCellType()) {
            case Cell.CELL_TYPE_NUMERIC: //数字
                cellValue = String.valueOf(cell.getNumericCellValue());
                break;
            case Cell.CELL_TYPE_STRING: //字符串
                cellValue = String.valueOf(cell.getStringCellValue());
                break;
            case Cell.CELL_TYPE_BOOLEAN: //Boolean
                cellValue = String.valueOf(cell.getBooleanCellValue());
                break;
            case Cell.CELL_TYPE_FORMULA: //公式
                cellValue = String.valueOf(cell.getCellFormula());
                break;
            case Cell.CELL_TYPE_BLANK: //空值
                cellValue = "";
                break;
            case Cell.CELL_TYPE_ERROR: //故障
                cellValue = "非法字符";
                break;
            default:
                cellValue = "未知类型";
                break;
        }
        return cellValue;
    }
}


如果帮助到你 给点鼓励 点个赞吧 谢谢亲