1

MrShi

2025-03-18 a836f03a5d1fbfa81e147d09ffdfa87ba3975c13

 server/services/src/main/java/com/doumee/core/annotation/excel/ExcelExporter.java

@@ -5,6 +5,7 @@
import lombok.AllArgsConstructor;
import lombok.Data;
import org.apache.poi.ss.usermodel.*;
import org.apache.poi.ss.util.CellRangeAddress;
import org.apache.poi.xssf.streaming.SXSSFWorkbook;
import org.springframework.core.annotation.AnnotationConfigurationException;

@@ -21,7 +22,7 @@
/**
 * Excel导出实现
 * @author Eva.Caesar Liu
 * @date 2022/03/15 09:54
 * @date 2023/02/14 11:14
 */
@Data
public class ExcelExporter<T> {
@@ -40,6 +41,75 @@
        ExcelExporter<T> excelExporter = new ExcelExporter<>();
        excelExporter.setModelClass(modelClass);
        return excelExporter;
    }
    /**
     * 导出到指定输出流
     * @param data 数据
     * @param sheetName Sheet名称
     */
    public void exportWithFirstAndEnd (List<T> data, String sheetName,String first,String end, OutputStream os) {
        SXSSFWorkbook sxssfWorkbook;
        try {
            sxssfWorkbook = new SXSSFWorkbook();
            Sheet sheet = sxssfWorkbook.createSheet(sheetName);
            // 创建列头
            sheet.createFreezePane(0, 2);
            sheet.addMergedRegion(new CellRangeAddress(0   ,0,0,this.getColumns().size()-1));
            Row title = sheet.createRow(0);
            title.setHeight((short) 1000);
            Cell c = title.createCell(0);
            c.setCellValue(first);
            configFirstCell(sxssfWorkbook,c);

            Row header = sheet.createRow(1);
            List<ColumnInfo> columns = this.getColumns();
            for (int columnIndex = 0; columnIndex < columns.size(); columnIndex++) {
                ColumnInfo column = columns.get(columnIndex);
                Cell cell = header.createCell(columnIndex);
                cell.setCellValue(column.columnConfig.name());
                // 列宽设置
                if (column.columnConfig.width() == -1) {
                    sheet.setColumnWidth(columnIndex, column.columnConfig.name().length() * 2 * 256);
                } else {
                    sheet.setColumnWidth(columnIndex, column.columnConfig.width() * 2 * 256);
                }
                // 设置列头单元格
                configHeaderCell(sxssfWorkbook, cell, column.columnConfig);
            }
            // 创建数据记录
            for (int rowIndex = 0; rowIndex < data.size(); rowIndex++) {
                Row row = sheet.createRow(rowIndex + 2);
                for (int columnIndex = 0; columnIndex < columns.size(); columnIndex++) {
                    ColumnInfo column = columns.get(columnIndex);
                    Cell cell = row.createCell(columnIndex);
                    cell.setCellValue(getCellData(column, data.get(rowIndex)));

                    // 设置数据单元格
                    configDataCell(sxssfWorkbook, cell, column.columnConfig);

                }
            }


            sheet.addMergedRegion(new CellRangeAddress(data.size()+2   ,data.size()+2,0,this.getColumns().size()-1));
            Row endRow = sheet.createRow(data.size()+2);
//            endRow.setHeight((short) 600);
            Cell c1 = endRow.createCell(0);
            c1.setCellValue(end);
            configEndCell(sxssfWorkbook,c1);
            sxssfWorkbook.write(os);
            os.close();
        } catch (Exception e) {
            throw new BusinessException(ResponseStatus.EXPORT_EXCEL_ERROR, e);
        } finally {
            if (os != null) {
                try {
                    os.close();
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
        }
    }

    /**
@@ -77,8 +147,10 @@
                    ColumnInfo column = columns.get(columnIndex);
                    Cell cell = row.createCell(columnIndex);
                    cell.setCellValue(getCellData(column, data.get(rowIndex)));

                    // 设置数据单元格
                    configDataCell(sxssfWorkbook, cell, column.columnConfig);

                }
            }
            sxssfWorkbook.write(os);
@@ -115,6 +187,25 @@
            throw new BusinessException(ResponseStatus.EXPORT_EXCEL_ERROR, e);
        }
    }
    /**
     * 导出至响应流
     * @param data 数据
     * @param fileName Excel文件名
     * @param sheetName Sheet名称
     * @param response HttpServletResponse对象
     */
    public void exportWithFirstAndEnd (List<T> data, String fileName, String sheetName, String first,String end ,HttpServletResponse response) {
        try {
            String encodeFileName = URLEncoder.encode(fileName, Charset.forName("UTF-8").toString()) + ".xlsx";
            response.setHeader("Content-Disposition","attachment;filename=" + encodeFileName);
            response.setContentType("application/octet-stream");
            response.setHeader("eva-opera-type", "download");
            response.setHeader("eva-download-filename", encodeFileName);
            this.exportWithFirstAndEnd(data, sheetName,first,end, response.getOutputStream());
        } catch (IOException e) {
            throw new BusinessException(ResponseStatus.EXPORT_EXCEL_ERROR, e);
        }
    }

    /**
     * 导出至响应流
@@ -123,10 +214,20 @@
     * @param response HttpServletResponse对象
     */
    public void export (List<T> data, String fileName, HttpServletResponse response) {

        this.export(data, fileName, DEFAULT_SHEET_NAME, response);
    }

    /**
     * 导出至响应流
     * @param data 数据
     * @param fileName Excel文件名
     * @param response HttpServletResponse对象
     */
    public void exportWithFirstAndEnd (List<T> data, String fileName,String first,String end, HttpServletResponse response) {
        this.exportWithFirstAndEnd(data, fileName, DEFAULT_SHEET_NAME, first,end,response);
    }

    /**O
     * 获取列集合
     */
    private List<ColumnInfo> getColumns () {
@@ -169,6 +270,7 @@
        style.setFont(font);
        // 边框
        configCellBorder(style);
        style.setWrapText(true);
        cell.setCellStyle(style);
    }

@@ -190,6 +292,42 @@
        configCellBorder(style);
        cell.setCellStyle(style);
    }
    /**
     * 配置列头单元格
     */
    private void configFirstCell (SXSSFWorkbook workbook, Cell cell ) {
        CellStyle style = workbook.createCellStyle();
        style.setAlignment(HorizontalAlignment.CENTER);
        style.setVerticalAlignment(VerticalAlignment.CENTER);
        // 设置背景
        style.setFillPattern(FillPatternType.SOLID_FOREGROUND);
        style.setFillForegroundColor(IndexedColors.GREY_25_PERCENT.getIndex());
        // 字体
        Font font = workbook.createFont();
        font.setFontHeightInPoints((short)18);
        style.setFont(font);
        // 设置边框
        configCellBorder(style);
        cell.setCellStyle(style);
    }
    /**
     * 配置列头单元格
     */
    private void configEndCell (SXSSFWorkbook workbook, Cell cell ) {
        CellStyle style = workbook.createCellStyle();
        style.setAlignment(HorizontalAlignment.RIGHT);
        style.setVerticalAlignment(VerticalAlignment.CENTER);
        // 设置背景
        style.setFillPattern(FillPatternType.SOLID_FOREGROUND);
        style.setFillForegroundColor(IndexedColors.GREY_25_PERCENT.getIndex());
        // 字体
        Font font = workbook.createFont();
        font.setFontHeightInPoints((short)14);
        style.setFont(font);
        // 设置边框
        configCellBorder(style);
        cell.setCellStyle(style);
    }

    /**
     * 配置单元格边框