From 94d5c174aa78399abff1c2acc38005815795f158 Mon Sep 17 00:00:00 2001
From: RuoYi <yzz_ivy@163.com>
Date: 星期三, 13 十二月 2023 11:47:35 +0800
Subject: [PATCH] 添加新群号：161281055
---
ruoyi-common/src/main/java/com/ruoyi/common/utils/poi/ExcelUtil.java | 121 +++++++++++++++++++++++++++++++++++-----
1 files changed, 105 insertions(+), 16 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 6137c86..68ccbf1 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
@@ -48,6 +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;
@@ -96,6 +97,11 @@
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
@@ -282,9 +288,23 @@
* @param is 输入流
* @return 转换后集合
*/
- public List<T> importExcel(InputStream is) throws Exception
+ public List<T> importExcel(InputStream is)
{
- return importExcel(is, 0);
+ List<T> list = null;
+ try
+ {
+ list = importExcel(is, 0);
+ }
+ catch (Exception e)
+ {
+ log.error("导入Excel异常{}", e.getMessage());
+ throw new UtilException(e.getMessage());
+ }
+ finally
+ {
+ IOUtils.closeQuietly(is);
+ }
+ return list;
}
/**
@@ -330,7 +350,6 @@
}
// 获取最后一个非空行的行下标，比如总行数为n，则返回的为n-1
int rows = sheet.getLastRowNum();
-
if (rows > 0)
{
// 定义一个map用于存放excel列的序号和field.
@@ -445,7 +464,7 @@
{
propertyName = field.getName() + "." + attr.targetAttr();
}
- else if (StringUtils.isNotEmpty(attr.readConverterExp()))
+ if (StringUtils.isNotEmpty(attr.readConverterExp()))
{
val = reverseByExp(Convert.toStr(val), attr.readConverterExp(), attr.separator());
}
@@ -455,7 +474,7 @@
}
else if (!attr.handler().equals(ExcelHandlerAdapter.class))
{
- val = dataFormatHandlerAdapter(val, attr);
+ val = dataFormatHandlerAdapter(val, attr, null);
}
else if (ColumnType.IMAGE == attr.cellType() && StringUtils.isNotEmpty(pictures))
{
@@ -689,7 +708,7 @@
int rowNo = (1 + rownum) - startNo;
for (int i = startNo; i < endNo; i++)
{
- rowNo = i > 1 ? rowNo + 1 : rowNo + i;
+ 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);
@@ -911,6 +930,10 @@
{
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());
}
else if (ColumnType.NUMERIC == attr.cellType())
@@ -978,8 +1001,16 @@
}
if (StringUtils.isNotEmpty(attr.prompt()) || attr.combo().length > 0)
{
- // 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);
+ 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);
+ }
}
}
@@ -1021,7 +1052,12 @@
}
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())
{
@@ -1029,7 +1065,7 @@
}
else if (!attr.handler().equals(ExcelHandlerAdapter.class))
{
- cell.setCellValue(dataFormatHandlerAdapter(value, attr));
+ cell.setCellValue(dataFormatHandlerAdapter(value, attr, cell));
}
else
{
@@ -1081,6 +1117,58 @@
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（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
+ */
+ 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.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)
+ {
+ dataValidation.setSuppressDropDownArrow(true);
+ dataValidation.setShowErrorBox(true);
+ }
+ else
+ {
+ dataValidation.setSuppressDropDownArrow(false);
+ }
+
+ sheet.addValidationData(dataValidation);
+ // 设置hiddenSheet隐藏
+ wb.setSheetHidden(wb.getSheetIndex(hideSheet), true);
}
/**
@@ -1190,13 +1278,13 @@
* @param excel 数据注解
* @return
*/
- public String dataFormatHandlerAdapter(Object value, Excel excel)
+ public String dataFormatHandlerAdapter(Object value, Excel excel, Cell cell)
{
try
{
Object instance = excel.handler().newInstance();
- Method formatMethod = excel.handler().getMethod("format", new Class[] { Object.class, String[].class });
- value = formatMethod.invoke(instance, value, excel.args());
+ Method formatMethod = excel.handler().getMethod("format", new Class[] { Object.class, String[].class, Cell.class, Workbook.class });
+ value = formatMethod.invoke(instance, value, excel.args(), cell, this.wb);
}
catch (Exception e)
{
@@ -1256,7 +1344,7 @@
*/
public String encodingFilename(String filename)
{
- filename = UUID.randomUUID().toString() + "_" + filename + ".xlsx";
+ filename = UUID.randomUUID() + "_" + filename + ".xlsx";
return filename;
}
@@ -1375,7 +1463,8 @@
Excel[] excels = attrs.value();
for (Excel attr : excels)
{
- if (attr != null && (attr.type() == Type.ALL || attr.type() == type))
+ 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 });
@@ -1533,7 +1622,7 @@
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);
}
}
--
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