| | |
| | | import org.apache.poi.hssf.usermodel.HSSFWorkbook; |
| | | import org.apache.poi.ss.usermodel.*; |
| | | import org.apache.poi.xssf.usermodel.XSSFWorkbook; |
| | | import org.apache.poi.ss.util.CellRangeAddress; |
| | | |
| | | import javax.servlet.http.HttpServletResponse; |
| | | import jakarta.servlet.http.HttpServletResponse; |
| | | import java.io.IOException; |
| | | import java.lang.reflect.Field; |
| | | import java.lang.reflect.Modifier; |
| | | import java.net.URLEncoder; |
| | | import java.text.SimpleDateFormat; |
| | | import java.util.*; |
| | | import java.util.regex.Matcher; |
| | | import java.util.regex.Pattern; |
| | | |
| | | /** |
| | | * Created by vincent on 2/17/2024 |
| | | */ |
| | | @Slf4j |
| | | public class ExcelUtil { |
| | | private static final Pattern EXTEND_FIELD_SOURCE_PATTERN = Pattern.compile("^extendFields\\.\\[(.+)]$"); |
| | | private static final String SEQUENCE_SOURCE = "sequence"; |
| | | private static final String SEQUENCE_LABEL = "序号"; |
| | | |
| | | public static void build(Workbook workbook, HttpServletResponse response) { |
| | | response.reset(); |
| | | Http.cors(response); |
| | |
| | | } catch (IllegalAccessException e) { |
| | | e.printStackTrace(); |
| | | } |
| | | if (value != null) { |
| | | if (value instanceof Date) { |
| | | SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss"); |
| | | row.createCell(cellIndex).setCellValue(sdf.format((Date) value)); |
| | | } else { |
| | | row.createCell(cellIndex).setCellValue(value.toString()); |
| | | } |
| | | } |
| | | writeCellValue(row, cellIndex, value); |
| | | cellIndex++; |
| | | } |
| | | } |
| | |
| | | } |
| | | |
| | | return workbook; |
| | | } |
| | | |
| | | public static Workbook create(List<Map<String, Object>> rows, List<ExportColumn> columns) { |
| | | return create(rows, columns, null); |
| | | } |
| | | |
| | | public static Workbook create(List<Map<String, Object>> rows, List<ExportColumn> columns, ExportMeta exportMeta) { |
| | | XSSFWorkbook workbook = new XSSFWorkbook(); |
| | | Sheet sheet = workbook.createSheet("export"); |
| | | List<ExportColumn> effectiveColumns = buildEffectiveColumns(columns, exportMeta); |
| | | boolean generatedSequenceColumn = hasGeneratedSequenceColumn(columns, effectiveColumns); |
| | | int titleColumnCount = Math.max(effectiveColumns.size(), 4); |
| | | int currentRowIndex = 0; |
| | | |
| | | CellStyle titleStyle = createTitleStyle(workbook); |
| | | CellStyle subHeaderStyle = createSubHeaderStyle(workbook); |
| | | CellStyle headerStyle = createHeaderStyle(workbook); |
| | | CellStyle bodyStyle = createBodyStyle(workbook); |
| | | |
| | | if (exportMeta != null && exportMeta.isLandscape()) { |
| | | sheet.getPrintSetup().setLandscape(true); |
| | | } |
| | | |
| | | if (exportMeta != null && StringUtils.isNotBlank(exportMeta.getReportTitle())) { |
| | | Row titleRow = sheet.createRow(currentRowIndex++); |
| | | titleRow.setHeightInPoints(24); |
| | | Cell titleCell = titleRow.createCell(0); |
| | | titleCell.setCellValue(exportMeta.getReportTitle()); |
| | | titleCell.setCellStyle(titleStyle); |
| | | sheet.addMergedRegion(new CellRangeAddress(0, 0, 0, titleColumnCount - 1)); |
| | | |
| | | Row subHeaderRow = sheet.createRow(currentRowIndex++); |
| | | writeSubHeaderCell(subHeaderRow, 0, getSubHeaderText("报表日期", exportMeta.getReportDate()), subHeaderStyle); |
| | | writeSubHeaderCell(subHeaderRow, 1, getSubHeaderText("打印人", exportMeta.getOperator()), subHeaderStyle); |
| | | writeSubHeaderCell(subHeaderRow, 2, getSubHeaderText("打印时间", exportMeta.getPrintedAt()), subHeaderStyle); |
| | | writeSubHeaderCell(subHeaderRow, 3, getSubHeaderText("记录数", String.valueOf(exportMeta.getCount())), subHeaderStyle); |
| | | |
| | | currentRowIndex++; |
| | | } |
| | | |
| | | Row header = sheet.createRow(currentRowIndex++); |
| | | for (int index = 0; index < effectiveColumns.size(); index++) { |
| | | Cell headerCell = header.createCell(index); |
| | | headerCell.setCellValue(effectiveColumns.get(index).getLabel()); |
| | | headerCell.setCellStyle(headerStyle); |
| | | } |
| | | |
| | | int rowIndex = currentRowIndex; |
| | | for (int dataIndex = 0; dataIndex < rows.size(); dataIndex++) { |
| | | Map<String, Object> rowData = rows.get(dataIndex); |
| | | Row row = sheet.createRow(rowIndex++); |
| | | for (int columnIndex = 0; columnIndex < effectiveColumns.size(); columnIndex++) { |
| | | Object value = getExportCellValue(rowData, effectiveColumns.get(columnIndex).getSource(), generatedSequenceColumn, dataIndex); |
| | | writeCellValue(row, columnIndex, value, bodyStyle); |
| | | } |
| | | } |
| | | |
| | | for (int columnIndex = 0; columnIndex < effectiveColumns.size(); columnIndex++) { |
| | | sheet.autoSizeColumn(columnIndex); |
| | | } |
| | | |
| | | return workbook; |
| | | } |
| | | |
| | | private static List<ExportColumn> buildEffectiveColumns(List<ExportColumn> columns, ExportMeta exportMeta) { |
| | | List<ExportColumn> effectiveColumns = new ArrayList<>(columns); |
| | | if (exportMeta != null && exportMeta.isShowSequence() && !containsSequenceColumn(columns)) { |
| | | effectiveColumns.add(0, new ExportColumn(SEQUENCE_SOURCE, SEQUENCE_LABEL)); |
| | | } |
| | | return effectiveColumns; |
| | | } |
| | | |
| | | private static boolean containsSequenceColumn(List<ExportColumn> columns) { |
| | | for (ExportColumn column : columns) { |
| | | if (SEQUENCE_SOURCE.equals(column.getSource())) { |
| | | return true; |
| | | } |
| | | } |
| | | return false; |
| | | } |
| | | |
| | | private static boolean hasGeneratedSequenceColumn(List<ExportColumn> originalColumns, List<ExportColumn> effectiveColumns) { |
| | | return effectiveColumns.size() > originalColumns.size() |
| | | && !effectiveColumns.isEmpty() |
| | | && SEQUENCE_SOURCE.equals(effectiveColumns.get(0).getSource()); |
| | | } |
| | | |
| | | private static Object getExportCellValue( |
| | | Map<String, Object> rowData, |
| | | String source, |
| | | boolean generatedSequenceColumn, |
| | | int dataIndex |
| | | ) { |
| | | if (generatedSequenceColumn && SEQUENCE_SOURCE.equals(source)) { |
| | | return dataIndex + 1; |
| | | } |
| | | return getRowValue(rowData, source); |
| | | } |
| | | |
| | | private static Object getRowValue(Map<String, Object> rowData, String source) { |
| | | if (rowData == null || StringUtils.isBlank(source)) { |
| | | return null; |
| | | } |
| | | |
| | | if (rowData.containsKey(source)) { |
| | | return rowData.get(source); |
| | | } |
| | | |
| | | Matcher matcher = EXTEND_FIELD_SOURCE_PATTERN.matcher(source); |
| | | if (matcher.matches()) { |
| | | Object extendFields = rowData.get("extendFields"); |
| | | if (extendFields instanceof Map<?, ?> extendFieldMap) { |
| | | return extendFieldMap.get(matcher.group(1)); |
| | | } |
| | | } |
| | | |
| | | return rowData.get(source); |
| | | } |
| | | |
| | | private static void writeCellValue(Row row, int cellIndex, Object value) { |
| | | writeCellValue(row, cellIndex, value, null); |
| | | } |
| | | |
| | | private static void writeCellValue(Row row, int cellIndex, Object value, CellStyle cellStyle) { |
| | | Cell cell = row.createCell(cellIndex); |
| | | if (cellStyle != null) { |
| | | cell.setCellStyle(cellStyle); |
| | | } |
| | | if (value == null) { |
| | | return; |
| | | } |
| | | if (value instanceof Date) { |
| | | SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss"); |
| | | cell.setCellValue(sdf.format((Date) value)); |
| | | return; |
| | | } |
| | | cell.setCellValue(value.toString()); |
| | | } |
| | | |
| | | private static void writeSubHeaderCell(Row row, int cellIndex, String value, CellStyle cellStyle) { |
| | | Cell cell = row.createCell(cellIndex); |
| | | cell.setCellValue(value); |
| | | cell.setCellStyle(cellStyle); |
| | | } |
| | | |
| | | private static String getSubHeaderText(String label, String value) { |
| | | return label + ": " + StringUtils.defaultString(value); |
| | | } |
| | | |
| | | private static CellStyle createTitleStyle(Workbook workbook) { |
| | | CellStyle cellStyle = workbook.createCellStyle(); |
| | | cellStyle.setAlignment(HorizontalAlignment.CENTER); |
| | | cellStyle.setVerticalAlignment(VerticalAlignment.CENTER); |
| | | |
| | | Font font = workbook.createFont(); |
| | | font.setBold(true); |
| | | font.setFontHeightInPoints((short) 14); |
| | | cellStyle.setFont(font); |
| | | return cellStyle; |
| | | } |
| | | |
| | | private static CellStyle createSubHeaderStyle(Workbook workbook) { |
| | | CellStyle cellStyle = workbook.createCellStyle(); |
| | | cellStyle.setAlignment(HorizontalAlignment.LEFT); |
| | | cellStyle.setVerticalAlignment(VerticalAlignment.CENTER); |
| | | |
| | | Font font = workbook.createFont(); |
| | | font.setFontHeightInPoints((short) 10); |
| | | cellStyle.setFont(font); |
| | | return cellStyle; |
| | | } |
| | | |
| | | private static CellStyle createHeaderStyle(Workbook workbook) { |
| | | CellStyle cellStyle = workbook.createCellStyle(); |
| | | cellStyle.setAlignment(HorizontalAlignment.CENTER); |
| | | cellStyle.setVerticalAlignment(VerticalAlignment.CENTER); |
| | | |
| | | Font font = workbook.createFont(); |
| | | font.setBold(true); |
| | | font.setFontHeightInPoints((short) 10); |
| | | cellStyle.setFont(font); |
| | | return cellStyle; |
| | | } |
| | | |
| | | private static CellStyle createBodyStyle(Workbook workbook) { |
| | | CellStyle cellStyle = workbook.createCellStyle(); |
| | | cellStyle.setAlignment(HorizontalAlignment.LEFT); |
| | | cellStyle.setVerticalAlignment(VerticalAlignment.TOP); |
| | | cellStyle.setWrapText(true); |
| | | return cellStyle; |
| | | } |
| | | |
| | | public static class ExportColumn { |
| | | private final String source; |
| | | private final String label; |
| | | |
| | | public ExportColumn(String source, String label) { |
| | | this.source = source; |
| | | this.label = label; |
| | | } |
| | | |
| | | public String getSource() { |
| | | return source; |
| | | } |
| | | |
| | | public String getLabel() { |
| | | return label; |
| | | } |
| | | } |
| | | |
| | | public static class ExportMeta { |
| | | private final String reportTitle; |
| | | private final String reportDate; |
| | | private final String printedAt; |
| | | private final String operator; |
| | | private final int count; |
| | | private final Map<String, Object> reportStyle; |
| | | |
| | | public ExportMeta(String reportTitle, String reportDate, String printedAt, String operator, int count) { |
| | | this(reportTitle, reportDate, printedAt, operator, count, Collections.emptyMap()); |
| | | } |
| | | |
| | | public ExportMeta( |
| | | String reportTitle, |
| | | String reportDate, |
| | | String printedAt, |
| | | String operator, |
| | | int count, |
| | | Map<String, ?> reportStyle |
| | | ) { |
| | | this.reportTitle = reportTitle; |
| | | this.reportDate = reportDate; |
| | | this.printedAt = printedAt; |
| | | this.operator = operator; |
| | | this.count = count; |
| | | this.reportStyle = normalizeReportStyle(reportStyle); |
| | | } |
| | | |
| | | public String getReportTitle() { |
| | | return reportTitle; |
| | | } |
| | | |
| | | public String getReportDate() { |
| | | return reportDate; |
| | | } |
| | | |
| | | public String getPrintedAt() { |
| | | return printedAt; |
| | | } |
| | | |
| | | public String getOperator() { |
| | | return operator; |
| | | } |
| | | |
| | | public int getCount() { |
| | | return count; |
| | | } |
| | | |
| | | public Map<String, Object> getReportStyle() { |
| | | return reportStyle; |
| | | } |
| | | |
| | | public boolean isLandscape() { |
| | | return "landscape".equalsIgnoreCase(Objects.toString(getReportStyleValue("orientation"), "")); |
| | | } |
| | | |
| | | public boolean isShowSequence() { |
| | | if (reportStyle.isEmpty() || !reportStyle.containsKey("showSequence")) { |
| | | return true; |
| | | } |
| | | Object value = getReportStyleValue("showSequence"); |
| | | if (value instanceof Boolean boolValue) { |
| | | return boolValue; |
| | | } |
| | | return !"false".equalsIgnoreCase(Objects.toString(value, "")); |
| | | } |
| | | |
| | | private Object getReportStyleValue(String key) { |
| | | return reportStyle.get(key); |
| | | } |
| | | |
| | | private static Map<String, Object> normalizeReportStyle(Map<String, ?> reportStyle) { |
| | | if (reportStyle == null || reportStyle.isEmpty()) { |
| | | return Collections.emptyMap(); |
| | | } |
| | | |
| | | Map<String, Object> normalizedReportStyle = new HashMap<>(); |
| | | for (Map.Entry<String, ?> entry : reportStyle.entrySet()) { |
| | | normalizedReportStyle.put(entry.getKey(), entry.getValue()); |
| | | } |
| | | return Collections.unmodifiableMap(normalizedReportStyle); |
| | | } |
| | | } |
| | | |
| | | /** |
| | |
| | | |
| | | |
| | | } |
| | | |