Vernacular text exported from Excel

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1. Background introduction

This is the case, I have done the most primitive POImethod for excel export before! The header needs to be spliced, and then filled with data! Later, I found that I encountered complex headers, especially adding styles , and merging cells . I wiped! It's not too much trouble! Later, I thought about whether it is possible to define a template, then read the template, and finally fill in the data!

After I had this idea, I started to ask Mommy. There is indeed POIa template read, but Ali has also made a package EasyExcelfor the native one POI, and also provides a template read fill, so what should I say, I will definitely support Ali's father? !

The next journey is like this, let's first look at an export I made with native POI before, and then an export that reads the FTP template file! (In fact, reading remote files may be commonly used in projects, you can focus on it! FTP download and upload are used here!)

The original method

used dependencies

<dependency>
  <groupId>org.apache.poi</groupId>
  <artifactId>poi</artifactId>
  <version>4.1.1</version>
</dependency>

<dependency>
  <groupId>org.apache.poi</groupId>
  <artifactId>poi-ooxml</artifactId>
  <version>4.1.1</version>
</dependency>
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renderings

Bloated code display ( just look at it, not the point! ):

 public Map<String,String> expExcelByJzbg(ExcelJzbg excelJzbg){
        //创建WorkBook实例
        HSSFWorkbook workbook = new HSSFWorkbook();
        //获取第一张工作表
        HSSFSheet sheet = workbook.createSheet("人员情况模板");
        sheet.setColumnWidth(0, (int) Math.ceil((4.73 * 250)));
        sheet.setColumnWidth(1, (int) Math.ceil((5.31 * 250)));
        sheet.setColumnWidth(2, (int) Math.ceil((9.45 * 250)));
        sheet.setColumnWidth(3, (int) Math.ceil((9.45 * 250)));
        sheet.setColumnWidth(4, (int) Math.ceil((9.45 * 250)));
        sheet.setColumnWidth(5, (int) Math.ceil((9.08 * 250)));
        sheet.setColumnWidth(6, (int) Math.ceil((8.2 * 250)));
        sheet.setColumnWidth(7, (int) Math.ceil((6.38 * 250)));
        sheet.setColumnWidth(8, (int) Math.ceil((3.79 * 250)));
        sheet.setColumnWidth(9, (int) Math.ceil((4.18 * 250)));
        sheet.setColumnWidth(10, (int) Math.ceil((14.47 * 250)));
        sheet.setColumnWidth(11, (int) Math.ceil((15.63 * 250)));
        sheet.setColumnWidth(12, (int) Math.ceil((16.36 * 250)));
        sheet.setColumnWidth(13, (int) Math.ceil((21.05 * 250)));
        sheet.setColumnWidth(14, (int) Math.ceil((16.99 * 250)));
        sheet.setColumnWidth(15, (int) Math.ceil((12.09 * 250)));
        sheet.setColumnWidth(16, (int) Math.ceil((18.36 * 250)));
        sheet.setColumnWidth(17, (int) Math.ceil((7.07 * 250)));
        sheet.setColumnWidth(18, (int) Math.ceil((9.96 * 250)));
        sheet.setColumnWidth(19, (int) Math.ceil((13.28 * 250)));
        sheet.setColumnWidth(20, (int) Math.ceil((8.44 * 250)));
        //创建列头单元格样式
        /*第一行*/
        HSSFCellStyle style = workbook.createCellStyle();
        style.setAlignment(HorizontalAlignment.CENTER);
        style.setVerticalAlignment(VerticalAlignment.CENTER);

        HSSFFont oneFont = workbook.createFont();
        oneFont.setFontName("方正小标宋简体");
        oneFont.setFontHeightInPoints((short) 18);
        oneFont.setBold(true);
        style.setFont(oneFont);
        style.setWrapText(true);


        HSSFRow row1 = sheet.createRow(0);
        HSSFCell cell11 = row1.createCell(0);
        cell11.setCellStyle(style);
        cell11.setCellValue("集中办公人员基本信息台账");
        row1.setHeight((short) (43 * 20));


        /*第二行*/
        HSSFCellStyle styletwo = workbook.createCellStyle();
        styletwo.setAlignment(HorizontalAlignment.CENTER);
        styletwo.setVerticalAlignment(VerticalAlignment.CENTER);
        HSSFFont twoFont = workbook.createFont();
        twoFont.setFontName("仿宋_GB2312");
        twoFont.setFontHeightInPoints((short) 14);
        styletwo.setFont(twoFont);
        styletwo.setAlignment(HorizontalAlignment.LEFT);
        styletwo.setWrapText(true);


        HSSFRow row2 = sheet.createRow(1);
        HSSFCell cell21 = row2.createCell(0);
        cell21.setCellStyle(styletwo);
        cell21.setCellValue("组别：" + excelJzbg.getOtherValues().get("zb"));

        HSSFCell cell22 = row2.createCell(11);
        cell22.setCellStyle(styletwo);
        cell22.setCellValue(excelJzbg.getOtherValues().get("yearMonth"));

        HSSFCell cell23 = row2.createCell(16);
        cell23.setCellStyle(styletwo);
        cell23.setCellValue("负责人签字：");

        row2.setHeight((short) (28 * 20));


        /*第三行*/
        HSSFCellStyle styleThree = workbook.createCellStyle();
        styleThree.setAlignment(HorizontalAlignment.CENTER);
        styleThree.setVerticalAlignment(VerticalAlignment.CENTER);
        HSSFFont threeFont = workbook.createFont();
        threeFont.setFontName("仿宋");
        threeFont.setFontHeightInPoints((short) 12);
        styleThree.setFont(threeFont);
        styleThree.setWrapText(true);

        HSSFRow row3 = sheet.createRow(2);

        HSSFCell cell3_0 = row3.createCell(0);
        cell3_0.setCellStyle(styleThree);
        cell3_0.setCellValue("序号");

        HSSFCell cell3_1 = row3.createCell(1);
        cell3_1.setCellStyle(styleThree);
        cell3_1.setCellValue("姓名");

        HSSFCell cell3_2 = row3.createCell(2);
        cell3_2.setCellStyle(styleThree);
        cell3_2.setCellValue("出生年月");

        HSSFCell cell3_3 = row3.createCell(3);
        cell3_3.setCellStyle(styleThree);
        cell3_3.setCellValue("身份证号");

        HSSFCell cell3_4 = row3.createCell(4);
        cell3_4.setCellStyle(styleThree);
        cell3_4.setCellValue("手机号码");

        HSSFCell cell3_5 = row3.createCell(5);
        cell3_5.setCellStyle(styleThree);
        cell3_5.setCellValue("职务/职级");

        HSSFCell cell3_6 = row3.createCell(6);
        cell3_6.setCellStyle(styleThree);
        cell3_6.setCellValue("学历");

        HSSFCell cell3_7 = row3.createCell(7);
        cell3_7.setCellStyle(styleThree);
        cell3_7.setCellValue("学位");

        HSSFCell cell3_8 = row3.createCell(8);
        cell3_8.setCellStyle(styleThree);
        cell3_8.setCellValue("性别");

        HSSFCell cell3_9 = row3.createCell(9);
        cell3_9.setCellStyle(styleThree);
        cell3_9.setCellValue("政治面貌");

        HSSFCell cell3_10 = row3.createCell(10);
        cell3_10.setCellStyle(styleThree);
        cell3_10.setCellValue("集中办公时间起");

        HSSFCell cell3_11 = row3.createCell(11);
        cell3_11.setCellStyle(styleThree);
        cell3_11.setCellValue("集中办公时间止");

        HSSFCell cell3_12 = row3.createCell(12);
        cell3_12.setCellStyle(styleThree);
        cell3_12.setCellValue("集中办公发文名称");

        HSSFCell cell3_13 = row3.createCell(13);
        cell3_13.setCellStyle(styleThree);
        cell3_13.setCellValue("集中办公发文文号");

        HSSFCell cell3_14 = row3.createCell(14);
        cell3_14.setCellStyle(styleThree);
        cell3_14.setCellValue("工作单位");

        HSSFCell cell3_15 = row3.createCell(15);
        cell3_15.setCellStyle(styleThree);
        cell3_15.setCellValue("所属省（市）");

        HSSFCell cell3_16 = row3.createCell(16);
        cell3_16.setCellStyle(styleThree);
        cell3_16.setCellValue("工作单位地址");

        HSSFCell cell3_17 = row3.createCell(17);
        cell3_17.setCellStyle(styleThree);
        cell3_17.setCellValue("工作单位邮编");

        HSSFCell cell3_18 = row3.createCell(18);
        cell3_18.setCellStyle(styleThree);
        cell3_18.setCellValue("单位收件人姓名");

        HSSFCell cell3_19 = row3.createCell(19);
        cell3_19.setCellStyle(styleThree);
        cell3_19.setCellValue("单位收件人手机");

        HSSFCell cell3_20 = row3.createCell(20);
        cell3_20.setCellStyle(styleThree);
        cell3_20.setCellValue("备注");

        row3.setHeight((short) (63 * 20));

        /*数据*/
        List<Map<String, String>> values = excelJzbg.getValues();
        int indexRow = 0;
        for (int i = 0; i < values.size(); i++) {
            Map<String,String> oneData = values.get(i);
            HSSFRow row4 = sheet.createRow(i + 3);
            HSSFCell cell4_0 = row4.createCell(0);
            cell4_0.setCellStyle(styleThree);
            cell4_0.setCellValue(i + 1);

            HSSFCell cell4_1 = row4.createCell(1);
            cell4_1.setCellStyle(styleThree);
            cell4_1.setCellValue(oneData.get("jdrymc"));

            HSSFCell cell4_2 = row4.createCell(2);
            cell4_2.setCellStyle(styleThree);
            cell4_2.setCellValue(oneData.get("csny").substring(0,7));

            HSSFCell cell4_3 = row4.createCell(3);
            cell4_3.setCellStyle(styleThree);
            cell4_3.setCellValue(oneData.get("sfzhm"));

            HSSFCell cell4_4 = row4.createCell(4);
            cell4_4.setCellStyle(styleThree);
            cell4_4.setCellValue("");

            HSSFCell cell4_5 = row4.createCell(5);
            cell4_5.setCellStyle(styleThree);
            cell4_5.setCellValue(oneData.get("zwzjdm"));

            HSSFCell cell4_6 = row4.createCell(6);
            cell4_6.setCellStyle(styleThree);
            cell4_6.setCellValue(oneData.get("xl"));

            HSSFCell cell4_7 = row4.createCell(7);
            cell4_7.setCellStyle(styleThree);
            cell4_7.setCellValue(oneData.get("xw"));

            HSSFCell cell4_8 = row4.createCell(8);
            cell4_8.setCellStyle(styleThree);
            cell4_8.setCellValue(oneData.get("xb"));

            HSSFCell cell4_9 = row4.createCell(9);
            cell4_9.setCellStyle(styleThree);
            cell4_9.setCellValue(oneData.get("zzmm"));

            HSSFCell cell4_10 = row4.createCell(10);
            cell4_10.setCellStyle(styleThree);
            cell4_10.setCellValue(oneData.get("jzbgsjq").substring(0,10));

            HSSFCell cell4_11 = row4.createCell(11);
            cell4_11.setCellStyle(styleThree);
            cell4_11.setCellValue(oneData.get("jzbgsjz").substring(0,10));

            HSSFCell cell4_12 = row4.createCell(12);
            cell4_12.setCellStyle(styleThree);
            cell4_12.setCellValue(oneData.get("jzbgfwmc"));

            HSSFCell cell4_13 = row4.createCell(13);
            cell4_13.setCellStyle(styleThree);
            cell4_13.setCellValue(oneData.get("jzbgfwwh"));

            HSSFCell cell4_14 = row4.createCell(14);
            cell4_14.setCellStyle(styleThree);
            cell4_14.setCellValue(oneData.get("gzdw"));

            HSSFCell cell4_15 = row4.createCell(15);
            cell4_15.setCellStyle(styleThree);
            cell4_15.setCellValue(oneData.get("sssf"));

            HSSFCell cell4_16 = row4.createCell(16);
            cell4_16.setCellStyle(styleThree);
            cell4_16.setCellValue(oneData.get("gzdwdz"));

            HSSFCell cell4_17 = row4.createCell(17);
            cell4_17.setCellStyle(styleThree);
            cell4_17.setCellValue(oneData.get("gzdwyb"));

            HSSFCell cell4_18 = row4.createCell(18);
            cell4_18.setCellStyle(styleThree);
            cell4_18.setCellValue(oneData.get("dwsjrxm"));

            HSSFCell cell4_19 = row4.createCell(19);
            cell4_19.setCellStyle(styleThree);
            cell4_19.setCellValue(oneData.get("dwsjrsj"));

            HSSFCell cell4_20 = row4.createCell(20);
            cell4_20.setCellStyle(styleThree);
            cell4_20.setCellValue("");

            row4.setHeight((short) (78.75 * 20));
        }

        HSSFRow row4 = sheet.createRow(values.size() + 3);
        HSSFCell cell4_0 = row4.createCell(15);
        cell4_0.setCellStyle(styleThree);
        cell4_0.setCellValue("经办人签字：");


        CellRangeAddress regionOne = new CellRangeAddress(0, 0, 0, 20);
        sheet.addMergedRegion(regionOne);
        CellRangeAddress regionTwo1 = new CellRangeAddress(1, 1, 0, 10);
        sheet.addMergedRegion(regionTwo1);
        CellRangeAddress regionTwo2 = new CellRangeAddress(1, 1, 11, 15);
        sheet.addMergedRegion(regionTwo2);
        CellRangeAddress regionTwo3 = new CellRangeAddress(1, 1, 16, 20);
        sheet.addMergedRegion(regionTwo3);



        // 生成返回文件
        ByteArrayOutputStream os = new ByteArrayOutputStream();
        try {
            workbook.write(os);
        } catch (IOException e) {
            e.printStackTrace();
        }


        // 上传FTP
        String expFileName = excelJzbg.getExpFileName();
        if (!expFileName.toLowerCase().endsWith(".xlsx")) expFileName += ".xlsx";
        return fileUploadService.uploadFile(null, toMultipartFile(os.toByteArray(), expFileName), WJLX, excelJzbg.getCzryDm());
    }
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3. Upgraded version

excel template

Dependency package

<dependency>
  <groupId>com.alibaba</groupId>
  <artifactId>easyexcel</artifactId>
  <version>2.2.10</version>
</dependency>
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entity class

@Data
@NoArgsConstructor
@AllArgsConstructor
@ToString
public class ExcelCommon {
    private String czryDm;
    /**
     * 模板名称(注意模板必须是.xlsx后缀)
     */
    private String templateName;
    /**
     * 导出文件名称
     */
    private String expFileName;

    /**
     * 存储的数据
     * 必须存放type
     * values.put(“type”,"01");
     * type=01 List 下面还有数据需要存储的复杂表格
     *
     * mapData,listData是需要填充的数据(谁存在就存储谁)
     * values.put("mapData",mapData);
     * values.put("listData",listData);
     */
    private Map<String, Object> values;

}
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method of implementation

@Override
    public Map<String, String> expExcel(ExcelCommon excelCommon) {
        try{
            // 1、下载文档模版
            String templateName = excelCommon.getTemplateName();
            if (!templateName.toLowerCase().endsWith(".xlsx")) templateName += ".xlsx";
            byte[] templateBytes = ftpUtil.downLoad(templatePath, templateName);
         
            if (templateBytes == null) {
                Map<String, String> result = new HashMap<>();
                result.put("rtnCode", "1000");
                result.put("rtnMsg", "模版获取失败");
                log.info("获取模版文件失败[" + templateName + "]");
                return result;
            }

            // 2、转换成输入流
            InputStream is = new ByteArrayInputStream(templateBytes);

            // 3、定义输出流
            ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream();

            // 4、定义easyExcel
            ExcelWriter excelWriter = EasyExcel.write(byteArrayOutputStream).withTemplate(is).build();
            WriteSheet writeSheet = EasyExcel.writerSheet().build();

            // 5、根据数据类型填充数据
            Map<String, Object> values = excelCommon.getValues();
            if (values.containsKey("type") == false) {
                Map<String, String> result = new HashMap<>();
                result.put("rtnCode", "1000");
                result.put("rtnMsg", "values中不存在【type】的key");
                log.info("获取模版文件失败[" + templateName + "]");
                return result;
            }


            String type = (String) values.get("type");
            if ("01".equals(type) == true){
                FillConfig fillConfig = FillConfig.builder().forceNewRow(Boolean.TRUE).build();
                if (values.containsKey("mapData") == true) excelWriter.fill(values.get("mapData"), fillConfig, writeSheet);
                if (values.containsKey("listData") == true) excelWriter.fill(values.get("listData"), fillConfig, writeSheet);
            }else{
                if (values.containsKey("mapData") == true) excelWriter.fill(values.get("mapData"), writeSheet);
                if (values.containsKey("listData") == true) excelWriter.fill(values.get("listData"), writeSheet);
            }

            excelWriter.finish();

            // 6、上传FTP
            String expFileName = excelCommon.getExpFileName();
            if (!expFileName.toLowerCase().endsWith(".xlsx")) expFileName += ".xlsx";
            return fileUploadService.uploadFile(null, toMultipartFile(byteArrayOutputStream.toByteArray(), expFileName), "xlsx", excelCommon.getCzryDm());
        }catch (Exception e){
            e.printStackTrace();
        }
        return null;
    }
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Effect picture:

4. Summary

The purpose of writing this article is to let everyone understand the method of easyExcel template reading, and it can be read and exported remotely! I hope it can help you. There are some FTPmethods above. If you need it, you can privately message me, and then I won't post it here (it's not very convenient)~

Thank you for reading, I am Also_Code, a programmer who likes to complicate simple problems and simplify complex problems! ❤