Spring Boot 导出Excel表格，以及导出批注

Spring Boot 导出Excel表格

添加支持

<dependency>
            <groupId>org.apache.poi</groupId>
            <artifactId>poi</artifactId>
            <version>3.9</version>
        </dependency>
        <dependency>
            <groupId>org.apache.poi</groupId>
            <artifactId>poi-ooxml</artifactId>
            <version>3.9</version>
        </dependency>

 

新建Excel实体类

import java.io.Serializable;
import java.util.List;

public class ExcelData implements Serializable {
    private static final long serialVersionUID = 4444017239100620999L;

    // 表头
    private List<String> titles;

    // 数据
    private List<List<Object>> rows;

    // 页签名称
    private String name;

    public List<String> getTitles() {
        return titles;
    }
    public void setTitles(List<String> titles) {
        this.titles = titles;
    }
    public List<List<Object>> getRows() {
        return rows;
    }
    public void setRows(List<List<Object>> rows) {
        this.rows = rows;
    }
    public String getName() {
        return name;
    }
    public void setName(String name) {
        this.name = name;
    }
}

 

添加excel工具类

package com.tj.college.util;

import org.apache.poi.ss.usermodel.BorderStyle;
import org.apache.poi.ss.usermodel.Cell;
import org.apache.poi.ss.usermodel.ClientAnchor;
import org.apache.poi.ss.usermodel.CreationHelper;
import org.apache.poi.ss.usermodel.Drawing;
import org.apache.poi.ss.usermodel.FillPatternType;
import org.apache.poi.ss.usermodel.Font;
import org.apache.poi.ss.usermodel.HorizontalAlignment;
import org.apache.poi.ss.usermodel.IndexedColors;
import org.apache.poi.ss.usermodel.Picture;
import org.apache.poi.ss.usermodel.Row;
import org.apache.poi.ss.usermodel.Sheet;
import org.apache.poi.ss.usermodel.VerticalAlignment;
import org.apache.poi.xssf.usermodel.XSSFCellStyle;
import org.apache.poi.xssf.usermodel.XSSFColor;
import org.apache.poi.xssf.usermodel.XSSFSheet;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;
import org.apache.poi.xssf.usermodel.extensions.XSSFCellBorder.BorderSide;

import javax.imageio.ImageIO;
import javax.servlet.http.HttpServletResponse;
import java.awt.image.BufferedImage;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.URL;
import java.net.URLEncoder;
import java.util.List;

public class ExcelUtils {
    public static void exportExcel(HttpServletResponse response, String fileName, ExcelData data, Boolean ... exportImg) throws Exception {
        // 告诉浏览器用什么软件可以打开此文件
        response.setHeader("content-Type", "application/vnd.ms-excel");
        // 下载文件的默认名称
        response.setHeader("Content-Disposition", "attachment;filename="+URLEncoder.encode(fileName, "utf-8"));
        exportExcel(data, response.getOutputStream(), exportImg);
    }

    public static void exportExcel(ExcelData data, OutputStream out, Boolean ... img) throws Exception {

        XSSFWorkbook wb = new XSSFWorkbook();
        try {
            String sheetName = data.getName();
            if (null == sheetName) {
                sheetName = "Sheet1";
            }
            XSSFSheet sheet = wb.createSheet(sheetName);
            writeExcel(wb, sheet, data, img);

            wb.write(out);
        } catch(Exception e){
            e.printStackTrace();
        }finally{
            //此处需要关闭 wb 变量
            out.close();
        }
    }

    private static void writeExcel(XSSFWorkbook wb, Sheet sheet, ExcelData data,Boolean ...img) {

        int rowIndex = 0;

        rowIndex = writeTitlesToExcel(wb, sheet, data.getTitles());
        writeRowsToExcel(wb, sheet, data.getRows(), rowIndex, img);
        autoSizeColumns(sheet, data.getTitles().size() + 1);

    }

    private static int writeTitlesToExcel(XSSFWorkbook wb, Sheet sheet, List<String> titles) {
        int rowIndex = 0;
        int colIndex = 0;

        Font titleFont = wb.createFont();
        titleFont.setFontName("simsun");
        titleFont.setColor(IndexedColors.BLACK.index);

        XSSFCellStyle titleStyle = wb.createCellStyle();
        titleStyle.setAlignment(HorizontalAlignment.CENTER);
        titleStyle.setVerticalAlignment(VerticalAlignment.CENTER);
        titleStyle.setFillPattern(FillPatternType.SOLID_FOREGROUND);
        titleStyle.setFont(titleFont);

        Row titleRow = sheet.createRow(rowIndex);
        // titleRow.setHeightInPoints(25);
        colIndex = 0;

        for (String field : titles) {
            Cell cell = titleRow.createCell(colIndex);
            cell.setCellValue(field);
            cell.setCellStyle(titleStyle);
            colIndex++;
        }

        rowIndex++;
        return rowIndex;
    }

    private static int writeRowsToExcel(XSSFWorkbook wb, Sheet sheet, List<List<Object>> rows, int rowIndex, Boolean ...img) {
        int colIndex = 0;

        Font dataFont = wb.createFont();
        dataFont.setFontName("simsun");
        dataFont.setColor(IndexedColors.BLACK.index);

        XSSFCellStyle dataStyle = wb.createCellStyle();
        dataStyle.setAlignment(HorizontalAlignment.CENTER);
        dataStyle.setVerticalAlignment(VerticalAlignment.CENTER);
        dataStyle.setFont(dataFont);for (List<Object> rowData : rows) {
            Row dataRow = sheet.createRow(rowIndex);
            dataRow.setHeightInPoints(30);//设置cell行高
            colIndex = 0;

            for (Object cellData : rowData) {
                Cell cell = dataRow.createCell(colIndex);
                if (cellData != null) {
                    cell.setCellValue(cellData.toString());
                } else {
                    cell.setCellValue("");
                }
                //导出图片
                if(img != null && img.length>=1 && img[0] == Boolean.TRUE && cell.getStringCellValue().startsWith("http")){
                    String imgUrl = cellData.toString();
                    cell.setCellValue("");//上面是填了url文本的，会把cell撑开，所以设置为""，不影响img的宽高显示
                    try {
                        URL url = new URL(imgUrl);

                        // 读取网络图片并将其转换为BufferedImage对象
                        BufferedImage image = ImageIO.read(url);
                        ByteArrayOutputStream os = new ByteArrayOutputStream();
                        ImageIO.write(image, "png", os);
                        InputStream is = new ByteArrayInputStream(os.toByteArray());

                        int pictureIdx = wb.addPicture(is, 4);

                        // 创建绘图工具
                        CreationHelper helper = wb.getCreationHelper();
                        Drawing drawing = sheet.createDrawingPatriarch();

                        // 创建锚点
                        ClientAnchor anchor = helper.createClientAnchor();
                        anchor.setRow1(rowIndex); // 图片开始的行
                        anchor.setCol1(colIndex); // 图片开始的列
                        anchor.setRow2(rowIndex+1); // 图片结束的行
                        anchor.setCol2(colIndex+1); // 图片结束的列

                        // 创建图片
                        Picture picture = drawing.createPicture(anchor, pictureIdx);

                        // 设置cell宽度为7个字符
　　　　　　　　　　　　　　 sheet.setColumnWidth(colIndex, 7 * 256);
                    }catch (Exception e){
                        e.printStackTrace();
                    }
                }
                cell.setCellStyle(dataStyle);
                colIndex++;
            }
            rowIndex++;
        }
        return rowIndex;
    }

    private static void autoSizeColumns(Sheet sheet, int columnNumber) {

        for (int i = 0; i < columnNumber; i++) {
            int orgWidth = sheet.getColumnWidth(i);
            sheet.autoSizeColumn(i, true);
            int newWidth = (int) (sheet.getColumnWidth(i) + 100);
//            if (newWidth > orgWidth) {
//                sheet.setColumnWidth(i, newWidth);
//            } else {
//                sheet.setColumnWidth(i, orgWidth);
//            }

            int maxWith = 256*255;
            //限制下最大宽度
            if(newWidth > maxWith) {
                sheet.setColumnWidth(i, maxWith);
            }else if (newWidth > orgWidth) {
                sheet.setColumnWidth(i, newWidth);
            } else {
                sheet.setColumnWidth(i, orgWidth);
            }
        }
    }

    private static void setBorder(XSSFCellStyle style, BorderStyle border, XSSFColor color) {
        style.setBorderTop(border);
        style.setBorderLeft(border);
        style.setBorderRight(border);
        style.setBorderBottom(border);
        style.setBorderColor(BorderSide.TOP, color);
        style.setBorderColor(BorderSide.LEFT, color);
        style.setBorderColor(BorderSide.RIGHT, color);
        style.setBorderColor(BorderSide.BOTTOM, color);
    }
}

 

ExcelUtils.java大概用得上（精简版，推荐）

package com.taojin.logistics.util;

import org.apache.poi.ss.usermodel.BorderStyle;
import org.apache.poi.ss.usermodel.Cell;
import org.apache.poi.ss.usermodel.FillPatternType;
import org.apache.poi.ss.usermodel.Font;
import org.apache.poi.ss.usermodel.HorizontalAlignment;
import org.apache.poi.ss.usermodel.IndexedColors;
import org.apache.poi.ss.usermodel.Row;
import org.apache.poi.ss.usermodel.Sheet;
import org.apache.poi.ss.usermodel.VerticalAlignment;
import org.apache.poi.xssf.usermodel.XSSFCellStyle;
import org.apache.poi.xssf.usermodel.XSSFColor;
import org.apache.poi.xssf.usermodel.XSSFSheet;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;
import org.apache.poi.xssf.usermodel.extensions.XSSFCellBorder.BorderSide;

import javax.servlet.http.HttpServletResponse;
import java.io.OutputStream;
import java.net.URLEncoder;
import java.util.List;

public class ExcelUtils {
    public static void exportExcel(HttpServletResponse response, String fileName, ExcelData data) throws Exception {
        // 告诉浏览器用什么软件可以打开此文件
        response.setHeader("content-Type", "application/vnd.ms-excel");
        // 下载文件的默认名称
        response.setHeader("Content-Disposition", "attachment;filename="+URLEncoder.encode(fileName, "utf-8"));
        exportExcel(data, response.getOutputStream());
    }

    public static void exportExcel(ExcelData data, OutputStream out) throws Exception {

        XSSFWorkbook wb = new XSSFWorkbook();
        try {
            String sheetName = data.getName();
            if (null == sheetName) {
                sheetName = "Sheet1";
            }
            XSSFSheet sheet = wb.createSheet(sheetName);
            writeExcel(wb, sheet, data);

            wb.write(out);
        } catch(Exception e){
            e.printStackTrace();
        }finally{
            //此处需要关闭 wb 变量
            out.close();
        }
    }

    private static void writeExcel(XSSFWorkbook wb, Sheet sheet, ExcelData data) {

        int rowIndex = 0;

        rowIndex = writeTitlesToExcel(wb, sheet, data.getTitles());
        writeRowsToExcel(wb, sheet, data.getRows(), rowIndex);
        autoSizeColumns(sheet, data.getTitles().size() + 1);

    }

    private static int writeTitlesToExcel(XSSFWorkbook wb, Sheet sheet, List<String> titles) {
        int rowIndex = 0;
        int colIndex = 0;

        Font titleFont = wb.createFont();
        titleFont.setFontName("simsun");
        titleFont.setColor(IndexedColors.BLACK.index);

        XSSFCellStyle titleStyle = wb.createCellStyle();
        titleStyle.setAlignment(HorizontalAlignment.CENTER);
        titleStyle.setVerticalAlignment(VerticalAlignment.CENTER);
        titleStyle.setFillPattern(FillPatternType.SOLID_FOREGROUND);
        titleStyle.setFont(titleFont);

        Row titleRow = sheet.createRow(rowIndex);
        // titleRow.setHeightInPoints(25);
        colIndex = 0;

        for (String field : titles) {
            Cell cell = titleRow.createCell(colIndex);
            cell.setCellValue(field);
            cell.setCellStyle(titleStyle);
            colIndex++;
        }

        rowIndex++;
        return rowIndex;
    }

    private static int writeRowsToExcel(XSSFWorkbook wb, Sheet sheet, List<List<Object>> rows, int rowIndex) {
        int colIndex = 0;

        Font dataFont = wb.createFont();
        dataFont.setFontName("simsun");
        dataFont.setColor(IndexedColors.BLACK.index);

        XSSFCellStyle dataStyle = wb.createCellStyle();
        dataStyle.setAlignment(HorizontalAlignment.CENTER);
        dataStyle.setVerticalAlignment(VerticalAlignment.CENTER);
        dataStyle.setFont(dataFont);for (List<Object> rowData : rows) {
            Row dataRow = sheet.createRow(rowIndex);
            colIndex = 0;

            for (Object cellData : rowData) {
                Cell cell = dataRow.createCell(colIndex);
                if (cellData != null) {
                    cell.setCellValue(cellData.toString());
                } else {
                    cell.setCellValue("");
                }

                cell.setCellStyle(dataStyle);
                colIndex++;
            }
            rowIndex++;
        }
        return rowIndex;
    }

    private static void autoSizeColumns(Sheet sheet, int columnNumber) {

        for (int i = 0; i < columnNumber; i++) {
            int orgWidth = sheet.getColumnWidth(i);
            sheet.autoSizeColumn(i, true);
            int newWidth = (int) (sheet.getColumnWidth(i) + 100);
//            if (newWidth > orgWidth) {
//                sheet.setColumnWidth(i, newWidth);
//            } else {
//                sheet.setColumnWidth(i, orgWidth);
//            }

            int maxWith = 256*255;
            //限制下最大宽度
            if(newWidth > maxWith) {
                sheet.setColumnWidth(i, maxWith);
            }else if (newWidth > orgWidth) {
                sheet.setColumnWidth(i, newWidth);
            } else {
                sheet.setColumnWidth(i, orgWidth);
            }
        }
    }

    private static void setBorder(XSSFCellStyle style, BorderStyle border, XSSFColor color) {
        style.setBorderTop(border);
        style.setBorderLeft(border);
        style.setBorderRight(border);
        style.setBorderBottom(border);
        style.setBorderColor(BorderSide.TOP, color);
        style.setBorderColor(BorderSide.LEFT, color);
        style.setBorderColor(BorderSide.RIGHT, color);
        style.setBorderColor(BorderSide.BOTTOM, color);
    }
}

 

 

# controller层,导出

import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;
import java.util.Map;

import javax.servlet.http.HttpServletResponse;

import com.soft.ssmproject.entity.ExcelData;
import com.soft.ssmproject.entity.ExcelInfo;
import com.soft.ssmproject.tool.ExcelUtils;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RestController;

@RestController
@RequestMapping("/excel")
public class ExcelController {
     @RequestMapping(value = "/export", method = RequestMethod.POST)
        public void excel(HttpServletResponse response) throws Exception {

　　　　　　ExcelData data = new ExcelData();
　　　　　　data.setName("预警记录");
　　　　　　//添加表头
　　　　　　data.setTitles(Arrays.asList("客服","预警时间","预警类型","预警值","主管","店铺","说明"));
　　　　　　//添加列
　　　　　　List<List<Object>> rows = new ArrayList();
　　　　　　List<Object> row = null;
　　　　　　List<ModelBeanView> listdata = new ArrayList();
　　　　　　for (ModelBeanview : listdata) {
    　　　　　　row = new ArrayList();
  　　　　　　  row.add(view.getName()+"("+ view.getTjkNumber() +")");
 　　　　　　   row.add(view.getWarningTime());
　　　　　　    row.add(view.getWarningTypeName());
    　　　　　　rows.add(row);
　　　　　　}
　　　　　　data.setRows(rows);
　　　　　　ExcelUtil.exportExcel(response, "预警记录.xlsx", data);

        }
}

 

导入：

    @RequestMapping(value = "/importExcel")
    public Object importReply(@RequestParam("file") MultipartFile file, String importType) {
        try {
            List<TrainReply> list = null;
                list = ExcelUtils.getExcelList(file.getInputStream(), new ExcelResolver<TrainReply>() {
                        @Override
                        public TrainReply resolve(org.apache.poi.ss.usermodel.Sheet sheet, Row row, int index) {
                            TrainReply reply = null;
                            if (index >= 1) {
                                reply = new TrainReply();
                                reply.setQuicktext(ExcelUtil.getCellString(row, 0));
                                reply.setReplytext(ExcelUtil.getCellString(row, 1));
                                reply.setTypeName(ExcelUtil.getCellString(row, 2));

　　　　　　　　　　　　　　　　　　//注意导入相应的类，这里不再赘述，new XSSFClientAnchor()参数含义见地址：https://blog.csdn.net/zhayaobao1/article/details/135156562
　　　　　　　　　　　　　　　　　　//Drawing patr = sheet.createDrawingPatriarch();
　　　　　　　　　　　　　　　　　　//Comment comment = patr.createCellComment(new XSSFClientAnchor(0, 0, 0, 0,  4, 2, 6, 5));
　　　　　　　　　　　　　　　　　　//comment.setString(new XSSFRichTextString("加批注啊，尼玛啊"));
　　　　　　　　　　　　　　　　　　//cell.setCellComment(comment);

                                index++;
                            }
                            return reply;
                        }
                    }
                );            return JsonResultBuilder.buildSuccess(null);
        } catch (Exception e) {
            return JsonResultBuilder.buildFailure("导入失败");
        }
    }

 

导入写法2，依赖更少： 

public List<StaffUserInfo> importBlackNames(MultipartFile file)throws IOException {
        Workbook wb = WorkbookFactory.create(file.getInputStream());
        Sheet sheet = wb.getSheetAt(0);
        int rows = sheet.getLastRowNum();

        List<StaffUserInfo> list = new ArrayList<StaffUserInfo>();
        int dataLine = 1;
        for (int i = 0; i <= rows; i++) {
            if(i < dataLine){
                continue;
            }
            Row row = sheet.getRow(i);
            XXX staff = new XXX ();
            staff.setRealName(row.getCell(0).getStringCellValue());
            
            list.add(staff);
        }
        wb.close();
        return list;
    }

 注：

导出批注写法

XSSFDrawing patr = sheet.createDrawingPatriarch();
  XSSFComment comment = patr.createCellComment(new XSSFClientAnchor(0, 0, 0, 0, (short) 4, 2, (short) 6, 5));
  comment.setString(new XSSFRichTextString(msg));
  cell.setCellComment(comment);

 

 字体，颜色， 风格，边框，批注，看这里

 

转子：https://blog.csdn.net/Cool_breeze_Rainy/article/details/80572308

XSSFCellStyle titleStyle = wb.createCellStyle();