From af0e0a110e7187bf008655f7510199a0c0b25ec4 Mon Sep 17 00:00:00 2001 From: Nymph2333 <498092988@qq.com> Date: 星期一, 10 四月 2023 14:27:40 +0800 Subject: [PATCH] newInstance() 已弃用,使用clazz.getDeclaredConstructor().newInstance() This method propagates any exception thrown by the nullary constructor, including a checked exception. Use of this method effectively bypasses the compile-time exception checking that would otherwise be performed by the compiler. The Constructor.newInstance method avoids this problem by wrapping any exception thrown by the constructor in a (checked) InvocationTargetException. The call clazz.newInstance() can be replaced by clazz.getDeclaredConstructor().newInstance() The latter sequence of calls is inferred to be able to throw the additional exception types InvocationTargetException and NoSuchMethodException. Both of these exception types are subclasses of ReflectiveOperationException. --- ruoyi-common/src/main/java/com/ruoyi/common/utils/poi/ExcelUtil.java | 522 ++++++++++++++++++++++++++++++++++++++++++++++++--------- 1 files changed, 434 insertions(+), 88 deletions(-) diff --git a/ruoyi-common/src/main/java/com/ruoyi/common/utils/poi/ExcelUtil.java b/ruoyi-common/src/main/java/com/ruoyi/common/utils/poi/ExcelUtil.java index e8f2950..cbe47b6 100644 --- a/ruoyi-common/src/main/java/com/ruoyi/common/utils/poi/ExcelUtil.java +++ b/ruoyi-common/src/main/java/com/ruoyi/common/utils/poi/ExcelUtil.java @@ -7,10 +7,14 @@ import java.io.OutputStream; import java.lang.reflect.Field; import java.lang.reflect.Method; +import java.lang.reflect.ParameterizedType; import java.math.BigDecimal; import java.text.DecimalFormat; +import java.time.LocalDate; +import java.time.LocalDateTime; import java.util.ArrayList; import java.util.Arrays; +import java.util.Collection; import java.util.Comparator; import java.util.Date; import java.util.HashMap; @@ -20,6 +24,9 @@ import java.util.UUID; import java.util.stream.Collectors; import javax.servlet.http.HttpServletResponse; +import org.apache.commons.lang3.ArrayUtils; +import org.apache.commons.lang3.RegExUtils; +import org.apache.commons.lang3.reflect.FieldUtils; import org.apache.poi.hssf.usermodel.HSSFClientAnchor; import org.apache.poi.hssf.usermodel.HSSFPicture; import org.apache.poi.hssf.usermodel.HSSFPictureData; @@ -41,6 +48,7 @@ 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.Name; import org.apache.poi.ss.usermodel.PictureData; import org.apache.poi.ss.usermodel.Row; import org.apache.poi.ss.usermodel.Sheet; @@ -86,7 +94,14 @@ { private static final Logger log = LoggerFactory.getLogger(ExcelUtil.class); + public static final String FORMULA_REGEX_STR = "=|-|\\+|@"; + public static final String[] FORMULA_STR = { "=", "-", "+", "@" }; + + /** + * 用于dictType属性数据存储,避免重复查缓存 + */ + public Map<String, String> sysDictMap = new HashMap<String, String>(); /** * Excel sheet最大行数,默认65536 @@ -132,7 +147,7 @@ * 当前行号 */ private int rownum; - + /** * 标题 */ @@ -142,6 +157,26 @@ * 最大高度 */ private short maxHeight; + + /** + * 合并后最后行数 + */ + private int subMergedLastRowNum = 0; + + /** + * 合并后开始行数 + */ + private int subMergedFirstRowNum = 1; + + /** + * 对象的子列表方法 + */ + private Method subMethod; + + /** + * 对象的子列表属性 + */ + private List<Field> subFields; /** * 统计列表 @@ -158,9 +193,25 @@ */ public Class<T> clazz; + /** + * 需要排除列属性 + */ + public String[] excludeFields; + public ExcelUtil(Class<T> clazz) { this.clazz = clazz; + } + + /** + * 隐藏Excel中列属性 + * + * @param fields 列属性名 示例[单个"name"/多个"id","name"] + * @throws Exception + */ + public void hideColumn(String... fields) + { + this.excludeFields = fields; } public void init(List<T> list, String sheetName, String title, Type type) @@ -176,6 +227,7 @@ createExcelField(); createWorkbook(); createTitle(); + createSubHead(); } /** @@ -185,13 +237,48 @@ { if (StringUtils.isNotEmpty(title)) { + subMergedFirstRowNum++; + subMergedLastRowNum++; + int titleLastCol = this.fields.size() - 1; + if (isSubList()) + { + titleLastCol = titleLastCol + subFields.size() - 1; + } Row titleRow = sheet.createRow(rownum == 0 ? rownum++ : 0); titleRow.setHeightInPoints(30); Cell titleCell = titleRow.createCell(0); titleCell.setCellStyle(styles.get("title")); titleCell.setCellValue(title); - sheet.addMergedRegion(new CellRangeAddress(titleRow.getRowNum(), titleRow.getRowNum(), titleRow.getRowNum(), - this.fields.size() - 1)); + sheet.addMergedRegion(new CellRangeAddress(titleRow.getRowNum(), titleRow.getRowNum(), titleRow.getRowNum(), titleLastCol)); + } + } + + /** + * 创建对象的子列表名称 + */ + public void createSubHead() + { + if (isSubList()) + { + subMergedFirstRowNum++; + subMergedLastRowNum++; + Row subRow = sheet.createRow(rownum); + int excelNum = 0; + for (Object[] objects : fields) + { + Excel attr = (Excel) objects[1]; + Cell headCell1 = subRow.createCell(excelNum); + headCell1.setCellValue(attr.name()); + headCell1.setCellStyle(styles.get(StringUtils.format("header_{}_{}", attr.headerColor(), attr.headerBackgroundColor()))); + excelNum++; + } + int headFirstRow = excelNum - 1; + int headLastRow = headFirstRow + subFields.size() - 1; + if (headLastRow > headFirstRow) + { + sheet.addMergedRegion(new CellRangeAddress(rownum, rownum, headFirstRow, headLastRow)); + } + rownum++; } } @@ -314,7 +401,7 @@ String dateFormat = field.getAnnotation(Excel.class).dateFormat(); if (StringUtils.isNotEmpty(dateFormat)) { - val = DateUtils.parseDateToStr(dateFormat, (Date) val); + val = parseDateToStr(dateFormat, val); } else { @@ -326,7 +413,7 @@ { val = Convert.toInt(val); } - else if (Long.TYPE == fieldType || Long.class == fieldType) + else if ((Long.TYPE == fieldType || Long.class == fieldType) && StringUtils.isNumeric(Convert.toStr(val))) { val = Convert.toLong(val); } @@ -409,7 +496,7 @@ { return exportExcel(list, sheetName, StringUtils.EMPTY); } - + /** * 对list数据源将其里面的数据导入到excel表单 * @@ -431,7 +518,6 @@ * @param list 导出数据集合 * @param sheetName 工作表的名称 * @return 结果 - * @throws IOException */ public void exportExcel(HttpServletResponse response, List<T> list, String sheetName) { @@ -446,7 +532,6 @@ * @param sheetName 工作表的名称 * @param title 标题 * @return 结果 - * @throws IOException */ public void exportExcel(HttpServletResponse response, List<T> list, String sheetName, String title) { @@ -573,8 +658,20 @@ // 写入各个字段的列头名称 for (Object[] os : fields) { + Field field = (Field) os[0]; Excel excel = (Excel) os[1]; - this.createCell(excel, row, column++); + if (Collection.class.isAssignableFrom(field.getType())) + { + for (Field subField : subFields) + { + Excel subExcel = subField.getAnnotation(Excel.class); + this.createHeadCell(subExcel, row, column++); + } + } + else + { + this.createHeadCell(excel, row, column++); + } } if (Type.EXPORT.equals(type)) { @@ -590,21 +687,67 @@ * @param index 序号 * @param row 单元格行 */ + @SuppressWarnings("unchecked") public void fillExcelData(int index, Row row) { int startNo = index * sheetSize; int endNo = Math.min(startNo + sheetSize, list.size()); + int rowNo = (1 + rownum) - startNo; for (int i = startNo; i < endNo; i++) { - row = sheet.createRow(i + 1 + rownum - startNo); + rowNo = isSubList() ? (i > 1 ? rowNo + 1 : rowNo + i) : i + 1 + rownum - startNo; + row = sheet.createRow(rowNo); // 得到导出对象. T vo = (T) list.get(i); + Collection<?> subList = null; + if (isSubList()) + { + if (isSubListValue(vo)) + { + subList = getListCellValue(vo); + subMergedLastRowNum = subMergedLastRowNum + subList.size(); + } + else + { + subMergedFirstRowNum++; + subMergedLastRowNum++; + } + } int column = 0; for (Object[] os : fields) { Field field = (Field) os[0]; Excel excel = (Excel) os[1]; - this.addCell(excel, row, vo, field, column++); + if (Collection.class.isAssignableFrom(field.getType()) && StringUtils.isNotNull(subList)) + { + boolean subFirst = false; + for (Object obj : subList) + { + if (subFirst) + { + rowNo++; + row = sheet.createRow(rowNo); + } + List<Field> subFields = FieldUtils.getFieldsListWithAnnotation(obj.getClass(), Excel.class); + int subIndex = 0; + for (Field subField : subFields) + { + if (subField.isAnnotationPresent(Excel.class)) + { + subField.setAccessible(true); + Excel attr = subField.getAnnotation(Excel.class); + this.addCell(attr, row, (T) obj, subField, column + subIndex); + } + subIndex++; + } + subFirst = true; + } + this.subMergedFirstRowNum = this.subMergedFirstRowNum + subList.size(); + } + else + { + this.addCell(excel, row, vo, field, column++); + } } } } @@ -647,20 +790,6 @@ styles.put("data", style); style = wb.createCellStyle(); - style.cloneStyleFrom(styles.get("data")); - style.setAlignment(HorizontalAlignment.CENTER); - style.setVerticalAlignment(VerticalAlignment.CENTER); - style.setFillForegroundColor(IndexedColors.GREY_50_PERCENT.getIndex()); - style.setFillPattern(FillPatternType.SOLID_FOREGROUND); - Font headerFont = wb.createFont(); - headerFont.setFontName("Arial"); - headerFont.setFontHeightInPoints((short) 10); - headerFont.setBold(true); - headerFont.setColor(IndexedColors.WHITE.getIndex()); - style.setFont(headerFont); - styles.put("header", style); - - style = wb.createCellStyle(); style.setAlignment(HorizontalAlignment.CENTER); style.setVerticalAlignment(VerticalAlignment.CENTER); Font totalFont = wb.createFont(); @@ -669,35 +798,105 @@ style.setFont(totalFont); styles.put("total", style); - style = wb.createCellStyle(); - style.cloneStyleFrom(styles.get("data")); - style.setAlignment(HorizontalAlignment.LEFT); - styles.put("data1", style); + styles.putAll(annotationHeaderStyles(wb, styles)); - style = wb.createCellStyle(); - style.cloneStyleFrom(styles.get("data")); - style.setAlignment(HorizontalAlignment.CENTER); - styles.put("data2", style); + styles.putAll(annotationDataStyles(wb)); - style = wb.createCellStyle(); - style.cloneStyleFrom(styles.get("data")); - style.setAlignment(HorizontalAlignment.RIGHT); - styles.put("data3", style); + return styles; + } + /** + * 根据Excel注解创建表格头样式 + * + * @param wb 工作薄对象 + * @return 自定义样式列表 + */ + private Map<String, CellStyle> annotationHeaderStyles(Workbook wb, Map<String, CellStyle> styles) + { + Map<String, CellStyle> headerStyles = new HashMap<String, CellStyle>(); + for (Object[] os : fields) + { + Excel excel = (Excel) os[1]; + String key = StringUtils.format("header_{}_{}", excel.headerColor(), excel.headerBackgroundColor()); + if (!headerStyles.containsKey(key)) + { + CellStyle style = wb.createCellStyle(); + style.cloneStyleFrom(styles.get("data")); + style.setAlignment(HorizontalAlignment.CENTER); + style.setVerticalAlignment(VerticalAlignment.CENTER); + style.setFillForegroundColor(excel.headerBackgroundColor().index); + style.setFillPattern(FillPatternType.SOLID_FOREGROUND); + Font headerFont = wb.createFont(); + headerFont.setFontName("Arial"); + headerFont.setFontHeightInPoints((short) 10); + headerFont.setBold(true); + headerFont.setColor(excel.headerColor().index); + style.setFont(headerFont); + headerStyles.put(key, style); + } + } + return headerStyles; + } + + /** + * 根据Excel注解创建表格列样式 + * + * @param wb 工作薄对象 + * @return 自定义样式列表 + */ + private Map<String, CellStyle> annotationDataStyles(Workbook wb) + { + Map<String, CellStyle> styles = new HashMap<String, CellStyle>(); + for (Object[] os : fields) + { + Excel excel = (Excel) os[1]; + String key = StringUtils.format("data_{}_{}_{}", excel.align(), excel.color(), excel.backgroundColor()); + if (!styles.containsKey(key)) + { + CellStyle style = wb.createCellStyle(); + style.setAlignment(excel.align()); + style.setVerticalAlignment(VerticalAlignment.CENTER); + style.setBorderRight(BorderStyle.THIN); + style.setRightBorderColor(IndexedColors.GREY_50_PERCENT.getIndex()); + style.setBorderLeft(BorderStyle.THIN); + style.setLeftBorderColor(IndexedColors.GREY_50_PERCENT.getIndex()); + style.setBorderTop(BorderStyle.THIN); + style.setTopBorderColor(IndexedColors.GREY_50_PERCENT.getIndex()); + style.setBorderBottom(BorderStyle.THIN); + style.setBottomBorderColor(IndexedColors.GREY_50_PERCENT.getIndex()); + style.setFillPattern(FillPatternType.SOLID_FOREGROUND); + style.setFillForegroundColor(excel.backgroundColor().getIndex()); + Font dataFont = wb.createFont(); + dataFont.setFontName("Arial"); + dataFont.setFontHeightInPoints((short) 10); + dataFont.setColor(excel.color().index); + style.setFont(dataFont); + styles.put(key, style); + } + } return styles; } /** * 创建单元格 */ - public Cell createCell(Excel attr, Row row, int column) + public Cell createHeadCell(Excel attr, Row row, int column) { // 创建列 Cell cell = row.createCell(column); // 写入列信息 cell.setCellValue(attr.name()); setDataValidation(attr, row, column); - cell.setCellStyle(styles.get("header")); + cell.setCellStyle(styles.get(StringUtils.format("header_{}_{}", attr.headerColor(), attr.headerBackgroundColor()))); + if (isSubList()) + { + // 填充默认样式,防止合并单元格样式失效 + sheet.setDefaultColumnStyle(column, styles.get(StringUtils.format("data_{}_{}_{}", attr.align(), attr.color(), attr.backgroundColor()))); + if (attr.needMerge()) + { + sheet.addMergedRegion(new CellRangeAddress(rownum - 1, rownum, column, column)); + } + } return cell; } @@ -714,9 +913,13 @@ { String cellValue = Convert.toStr(value); // 对于任何以表达式触发字符 =-+@开头的单元格,直接使用tab字符作为前缀,防止CSV注入。 - if (StringUtils.containsAny(cellValue, FORMULA_STR)) + if (StringUtils.startsWithAny(cellValue, FORMULA_STR)) { - cellValue = StringUtils.replaceEach(cellValue, FORMULA_STR, new String[] { "\t=", "\t-", "\t+", "\t@" }); + cellValue = RegExUtils.replaceFirst(cellValue, FORMULA_REGEX_STR, "\t$0"); + } + if (value instanceof Collection && StringUtils.equals("[]", cellValue)) + { + cellValue = StringUtils.EMPTY; } cell.setCellValue(StringUtils.isNull(cellValue) ? attr.defaultValue() : cellValue + attr.suffix()); } @@ -783,17 +986,18 @@ // 设置列宽 sheet.setColumnWidth(column, (int) ((attr.width() + 0.72) * 256)); } - // 如果设置了提示信息则鼠标放上去提示. - if (StringUtils.isNotEmpty(attr.prompt())) + if (StringUtils.isNotEmpty(attr.prompt()) || attr.combo().length > 0) { - // 这里默认设了2-101列提示. - setXSSFPrompt(sheet, "", attr.prompt(), 1, 100, column, column); - } - // 如果设置了combo属性则本列只能选择不能输入 - if (attr.combo().length > 0) - { - // 这里默认设了2-101列只能选择不能输入. - setXSSFValidation(sheet, attr.combo(), 1, 100, column, column); + if (attr.combo().length > 15 || StringUtils.join(attr.combo()).length() > 255) + { + // 如果下拉数大于15或字符串长度大于255,则使用一个新sheet存储,避免生成的模板下拉值获取不到 + setXSSFValidationWithHidden(sheet, attr.combo(), attr.prompt(), 1, 100, column, column); + } + else + { + // 提示信息或只能选择不能输入的列内容. + setPromptOrValidation(sheet, attr.combo(), attr.prompt(), 1, 100, column, column); + } } } @@ -812,8 +1016,12 @@ { // 创建cell cell = row.createCell(column); - int align = attr.align().value(); - cell.setCellStyle(styles.get("data" + (align >= 1 && align <= 3 ? align : ""))); + if (isSubListValue(vo) && getListCellValue(vo).size() > 1 && attr.needMerge()) + { + CellRangeAddress cellAddress = new CellRangeAddress(subMergedFirstRowNum, subMergedLastRowNum, column, column); + sheet.addMergedRegion(cellAddress); + } + cell.setCellStyle(styles.get(StringUtils.format("data_{}_{}_{}", attr.align(), attr.color(), attr.backgroundColor()))); // 用于读取对象中的属性 Object value = getTargetValue(vo, field, attr); @@ -823,7 +1031,7 @@ String dictType = attr.dictType(); if (StringUtils.isNotEmpty(dateFormat) && StringUtils.isNotNull(value)) { - cell.setCellValue(DateUtils.parseDateToStr(dateFormat, (Date) value)); + cell.setCellValue(parseDateToStr(dateFormat, value)); } else if (StringUtils.isNotEmpty(readConverterExp) && StringUtils.isNotNull(value)) { @@ -831,11 +1039,16 @@ } else if (StringUtils.isNotEmpty(dictType) && StringUtils.isNotNull(value)) { - cell.setCellValue(convertDictByExp(Convert.toStr(value), dictType, separator)); + if (!sysDictMap.containsKey(dictType + value)) + { + String lable = convertDictByExp(Convert.toStr(value), dictType, separator); + sysDictMap.put(dictType + value, lable); + } + cell.setCellValue(sysDictMap.get(dictType + value)); } else if (value instanceof BigDecimal && -1 != attr.scale()) { - cell.setCellValue((((BigDecimal) value).setScale(attr.scale(), attr.roundingMode())).toString()); + cell.setCellValue((((BigDecimal) value).setScale(attr.scale(), attr.roundingMode())).doubleValue()); } else if (!attr.handler().equals(ExcelHandlerAdapter.class)) { @@ -857,48 +1070,78 @@ } /** - * 设置 POI XSSFSheet 单元格提示 + * 设置 POI XSSFSheet 单元格提示或选择框 * * @param sheet 表单 - * @param promptTitle 提示标题 + * @param textlist 下拉框显示的内容 * @param promptContent 提示内容 * @param firstRow 开始行 * @param endRow 结束行 * @param firstCol 开始列 * @param endCol 结束列 */ - public void setXSSFPrompt(Sheet sheet, String promptTitle, String promptContent, int firstRow, int endRow, + public void setPromptOrValidation(Sheet sheet, String[] textlist, String promptContent, int firstRow, int endRow, int firstCol, int endCol) { DataValidationHelper helper = sheet.getDataValidationHelper(); - DataValidationConstraint constraint = helper.createCustomConstraint("DD1"); + DataValidationConstraint constraint = textlist.length > 0 ? helper.createExplicitListConstraint(textlist) : helper.createCustomConstraint("DD1"); CellRangeAddressList regions = new CellRangeAddressList(firstRow, endRow, firstCol, endCol); DataValidation dataValidation = helper.createValidation(constraint, regions); - dataValidation.createPromptBox(promptTitle, promptContent); - dataValidation.setShowPromptBox(true); + if (StringUtils.isNotEmpty(promptContent)) + { + // 如果设置了提示信息则鼠标放上去提示 + dataValidation.createPromptBox("", promptContent); + dataValidation.setShowPromptBox(true); + } + // 处理Excel兼容性问题 + if (dataValidation instanceof XSSFDataValidation) + { + dataValidation.setSuppressDropDownArrow(true); + dataValidation.setShowErrorBox(true); + } + else + { + dataValidation.setSuppressDropDownArrow(false); + } sheet.addValidationData(dataValidation); } /** - * 设置某些列的值只能输入预制的数据,显示下拉框. + * 设置某些列的值只能输入预制的数据,显示下拉框(兼容超出一定数量的下拉框). * * @param sheet 要设置的sheet. * @param textlist 下拉框显示的内容 + * @param promptContent 提示内容 * @param firstRow 开始行 * @param endRow 结束行 * @param firstCol 开始列 * @param endCol 结束列 - * @return 设置好的sheet. */ - public void setXSSFValidation(Sheet sheet, String[] textlist, int firstRow, int endRow, int firstCol, int endCol) + public void setXSSFValidationWithHidden(Sheet sheet, String[] textlist, String promptContent, int firstRow, int endRow, int firstCol, int endCol) { + String hideSheetName = "combo_" + firstCol + "_" + endCol; + Sheet hideSheet = wb.createSheet(hideSheetName); // 用于存储 下拉菜单数据 + for (int i = 0; i < textlist.length; i++) + { + hideSheet.createRow(i).createCell(0).setCellValue(textlist[i]); + } + // 创建名称,可被其他单元格引用 + Name name = wb.createName(); + name.setNameName(hideSheetName + "_data"); + name.setRefersToFormula(hideSheetName + "!$A$1:$A$" + textlist.length); DataValidationHelper helper = sheet.getDataValidationHelper(); // 加载下拉列表内容 - DataValidationConstraint constraint = helper.createExplicitListConstraint(textlist); + DataValidationConstraint constraint = helper.createFormulaListConstraint(hideSheetName + "_data"); // 设置数据有效性加载在哪个单元格上,四个参数分别是:起始行、终止行、起始列、终止列 CellRangeAddressList regions = new CellRangeAddressList(firstRow, endRow, firstCol, endCol); // 数据有效性对象 DataValidation dataValidation = helper.createValidation(constraint, regions); + if (StringUtils.isNotEmpty(promptContent)) + { + // 如果设置了提示信息则鼠标放上去提示 + dataValidation.createPromptBox("", promptContent); + dataValidation.setShowPromptBox(true); + } // 处理Excel兼容性问题 if (dataValidation instanceof XSSFDataValidation) { @@ -911,6 +1154,8 @@ } sheet.addValidationData(dataValidation); + // 设置hiddenSheet隐藏 + wb.setSheetHidden(wb.getSheetIndex(hideSheet), true); } /** @@ -928,7 +1173,7 @@ for (String item : convertSource) { String[] itemArray = item.split("="); - if (StringUtils.containsAny(separator, propertyValue)) + if (StringUtils.containsAny(propertyValue, separator)) { for (String value : propertyValue.split(separator)) { @@ -965,7 +1210,7 @@ for (String item : convertSource) { String[] itemArray = item.split("="); - if (StringUtils.containsAny(separator, propertyValue)) + if (StringUtils.containsAny(propertyValue, separator)) { for (String value : propertyValue.split(separator)) { @@ -1086,7 +1331,7 @@ */ public String encodingFilename(String filename) { - filename = UUID.randomUUID().toString() + "_" + filename + ".xlsx"; + filename = UUID.randomUUID() + "_" + filename + ".xlsx"; return filename; } @@ -1121,7 +1366,7 @@ if (StringUtils.isNotEmpty(excel.targetAttr())) { String target = excel.targetAttr(); - if (target.indexOf(".") > -1) + if (target.contains(".")) { String[] targets = target.split("[.]"); for (String name : targets) @@ -1178,28 +1423,39 @@ tempFields.addAll(Arrays.asList(clazz.getDeclaredFields())); for (Field field : tempFields) { - // 单注解 - if (field.isAnnotationPresent(Excel.class)) + if (!ArrayUtils.contains(this.excludeFields, field.getName())) { - Excel attr = field.getAnnotation(Excel.class); - if (attr != null && (attr.type() == Type.ALL || attr.type() == type)) + // 单注解 + if (field.isAnnotationPresent(Excel.class)) { - field.setAccessible(true); - fields.add(new Object[] { field, attr }); - } - } - - // 多注解 - if (field.isAnnotationPresent(Excels.class)) - { - Excels attrs = field.getAnnotation(Excels.class); - Excel[] excels = attrs.value(); - for (Excel attr : excels) - { + Excel attr = field.getAnnotation(Excel.class); if (attr != null && (attr.type() == Type.ALL || attr.type() == type)) { field.setAccessible(true); fields.add(new Object[] { field, attr }); + } + if (Collection.class.isAssignableFrom(field.getType())) + { + subMethod = getSubMethod(field.getName(), clazz); + ParameterizedType pt = (ParameterizedType) field.getGenericType(); + Class<?> subClass = (Class<?>) pt.getActualTypeArguments()[0]; + this.subFields = FieldUtils.getFieldsListWithAnnotation(subClass, Excel.class); + } + } + + // 多注解 + if (field.isAnnotationPresent(Excels.class)) + { + Excels attrs = field.getAnnotation(Excels.class); + Excel[] excels = attrs.value(); + for (Excel attr : excels) + { + if (!ArrayUtils.contains(this.excludeFields, field.getName() + "." + attr.targetAttr()) + && (attr != null && (attr.type() == Type.ALL || attr.type() == type))) + { + field.setAccessible(true); + fields.add(new Object[] { field, attr }); + } } } } @@ -1216,7 +1472,7 @@ for (Object[] os : this.fields) { Excel excel = (Excel) os[1]; - maxHeight = maxHeight > excel.height() ? maxHeight : excel.height(); + maxHeight = Math.max(maxHeight, excel.height()); } return (short) (maxHeight * 20); } @@ -1353,7 +1609,7 @@ HSSFPicture pic = (HSSFPicture) shape; int pictureIndex = pic.getPictureIndex() - 1; HSSFPictureData picData = pictures.get(pictureIndex); - String picIndex = String.valueOf(anchor.getRow1()) + "_" + String.valueOf(anchor.getCol1()); + String picIndex = anchor.getRow1() + "_" + anchor.getCol1(); sheetIndexPicMap.put(picIndex, picData); } } @@ -1396,4 +1652,94 @@ } return sheetIndexPicMap; } + + /** + * 格式化不同类型的日期对象 + * + * @param dateFormat 日期格式 + * @param val 被格式化的日期对象 + * @return 格式化后的日期字符 + */ + public String parseDateToStr(String dateFormat, Object val) + { + if (val == null) + { + return ""; + } + String str; + if (val instanceof Date) + { + str = DateUtils.parseDateToStr(dateFormat, (Date) val); + } + else if (val instanceof LocalDateTime) + { + str = DateUtils.parseDateToStr(dateFormat, DateUtils.toDate((LocalDateTime) val)); + } + else if (val instanceof LocalDate) + { + str = DateUtils.parseDateToStr(dateFormat, DateUtils.toDate((LocalDate) val)); + } + else + { + str = val.toString(); + } + return str; + } + + /** + * 是否有对象的子列表 + */ + public boolean isSubList() + { + return StringUtils.isNotNull(subFields) && subFields.size() > 0; + } + + /** + * 是否有对象的子列表,集合不为空 + */ + public boolean isSubListValue(T vo) + { + return StringUtils.isNotNull(subFields) && subFields.size() > 0 && StringUtils.isNotNull(getListCellValue(vo)) && getListCellValue(vo).size() > 0; + } + + /** + * 获取集合的值 + */ + public Collection<?> getListCellValue(Object obj) + { + Object value; + try + { + value = subMethod.invoke(obj, new Object[] {}); + } + catch (Exception e) + { + return new ArrayList<Object>(); + } + return (Collection<?>) value; + } + + /** + * 获取对象的子列表方法 + * + * @param name 名称 + * @param pojoClass 类对象 + * @return 子列表方法 + */ + public Method getSubMethod(String name, Class<?> pojoClass) + { + StringBuffer getMethodName = new StringBuffer("get"); + getMethodName.append(name.substring(0, 1).toUpperCase()); + getMethodName.append(name.substring(1)); + Method method = null; + try + { + method = pojoClass.getMethod(getMethodName.toString(), new Class[] {}); + } + catch (Exception e) + { + log.error("获取对象异常{}", e.getMessage()); + } + return method; + } } -- Gitblit v1.9.2