From 06074571f5d5c8ceba1f58649485b29ee594e930 Mon Sep 17 00:00:00 2001
From: RuoYi <yzz_ivy@163.com>
Date: Sun, 27 Dec 2020 10:05:28 +0800
Subject: [PATCH] Excel注解支持Image图片导出
---
ruoyi-common/ruoyi-common-core/src/main/java/com/ruoyi/common/core/utils/poi/ExcelUtil.java | 94 +++++++++++++++++++++++++++++++++++++++++------
1 files changed, 82 insertions(+), 12 deletions(-)
diff --git a/ruoyi-common/ruoyi-common-core/src/main/java/com/ruoyi/common/core/utils/poi/ExcelUtil.java b/ruoyi-common/ruoyi-common-core/src/main/java/com/ruoyi/common/core/utils/poi/ExcelUtil.java
index 8aac361..30b5427 100644
--- a/ruoyi-common/ruoyi-common-core/src/main/java/com/ruoyi/common/core/utils/poi/ExcelUtil.java
+++ b/ruoyi-common/ruoyi-common-core/src/main/java/com/ruoyi/common/core/utils/poi/ExcelUtil.java
@@ -16,15 +16,16 @@
import java.util.Set;
import java.util.stream.Collectors;
import javax.servlet.http.HttpServletResponse;
-import org.apache.poi.hssf.usermodel.HSSFDateUtil;
import org.apache.poi.ss.usermodel.BorderStyle;
import org.apache.poi.ss.usermodel.Cell;
import org.apache.poi.ss.usermodel.CellStyle;
import org.apache.poi.ss.usermodel.CellType;
+import org.apache.poi.ss.usermodel.ClientAnchor;
import org.apache.poi.ss.usermodel.DataValidation;
import org.apache.poi.ss.usermodel.DataValidationConstraint;
import org.apache.poi.ss.usermodel.DataValidationHelper;
import org.apache.poi.ss.usermodel.DateUtil;
+import org.apache.poi.ss.usermodel.Drawing;
import org.apache.poi.ss.usermodel.FillPatternType;
import org.apache.poi.ss.usermodel.Font;
import org.apache.poi.ss.usermodel.HorizontalAlignment;
@@ -36,6 +37,7 @@
import org.apache.poi.ss.usermodel.WorkbookFactory;
import org.apache.poi.ss.util.CellRangeAddressList;
import org.apache.poi.xssf.streaming.SXSSFWorkbook;
+import org.apache.poi.xssf.usermodel.XSSFClientAnchor;
import org.apache.poi.xssf.usermodel.XSSFDataValidation;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
@@ -46,6 +48,8 @@
import com.ruoyi.common.core.text.Convert;
import com.ruoyi.common.core.utils.DateUtils;
import com.ruoyi.common.core.utils.StringUtils;
+import com.ruoyi.common.core.utils.file.FileTypeUtils;
+import com.ruoyi.common.core.utils.file.ImageUtils;
import com.ruoyi.common.core.utils.reflect.ReflectUtils;
/**
@@ -96,6 +100,11 @@
* 注解列表
*/
private List<Object[]> fields;
+
+ /**
+ * 最大高度
+ */
+ private short maxHeight;
/**
* 统计列表
@@ -234,7 +243,15 @@
}
else
{
- val = Convert.toStr(val);
+ String dateFormat = field.getAnnotation(Excel.class).dateFormat();
+ if (StringUtils.isNotEmpty(dateFormat))
+ {
+ val = DateUtils.parseDateToStr(dateFormat, (Date) val);
+ }
+ else
+ {
+ val = Convert.toStr(val);
+ }
}
}
else if ((Integer.TYPE == fieldType || Integer.class == fieldType) && StringUtils.isNumeric(Convert.toStr(val)))
@@ -507,14 +524,53 @@
{
if (ColumnType.STRING == attr.cellType())
{
- cell.setCellType(CellType.STRING);
cell.setCellValue(StringUtils.isNull(value) ? attr.defaultValue() : value + attr.suffix());
}
else if (ColumnType.NUMERIC == attr.cellType())
{
- cell.setCellType(CellType.NUMERIC);
cell.setCellValue(StringUtils.contains(Convert.toStr(value), ".") ? Convert.toDouble(value) : Convert.toInt(value));
}
+ else if (ColumnType.IMAGE == attr.cellType())
+ {
+ ClientAnchor anchor = new XSSFClientAnchor(0, 0, 0, 0, (short) cell.getColumnIndex(), cell.getRow().getRowNum(), (short) (cell.getColumnIndex() + 1),
+ cell.getRow().getRowNum() + 1);
+ String imagePath = Convert.toStr(value);
+ if (StringUtils.isNotEmpty(imagePath))
+ {
+ byte[] data = ImageUtils.getImage(imagePath);
+ getDrawingPatriarch(cell.getSheet()).createPicture(anchor,
+ cell.getSheet().getWorkbook().addPicture(data, getImageType(data)));
+ }
+ }
+ }
+
+ /**
+ * 获取画布
+ */
+ public static Drawing<?> getDrawingPatriarch(Sheet sheet)
+ {
+ if (sheet.getDrawingPatriarch() == null)
+ {
+ sheet.createDrawingPatriarch();
+ }
+ return sheet.getDrawingPatriarch();
+ }
+
+ /**
+ * 获取图片类型,设置图片插入类型
+ */
+ public int getImageType(byte[] value)
+ {
+ String type = FileTypeUtils.getFileExtendName(value);
+ if ("JPG".equalsIgnoreCase(type))
+ {
+ return Workbook.PICTURE_TYPE_JPEG;
+ }
+ else if ("PNG".equalsIgnoreCase(type))
+ {
+ return Workbook.PICTURE_TYPE_PNG;
+ }
+ return Workbook.PICTURE_TYPE_JPEG;
}
/**
@@ -530,7 +586,6 @@
{
// 设置列宽
sheet.setColumnWidth(column, (int) ((attr.width() + 0.72) * 256));
- row.setHeight((short) (attr.height() * 20));
}
// 如果设置了提示信息则鼠标放上去提示.
if (StringUtils.isNotEmpty(attr.prompt()))
@@ -555,7 +610,7 @@
try
{
// 设置行高
- row.setHeight((short) (attr.height() * 20));
+ row.setHeight(maxHeight);
// 根据Excel中设置情况决定是否导出,有些情况需要保持为空,希望用户填写这一列.
if (attr.isExport())
{
@@ -815,7 +870,7 @@
*/
private Object getValue(Object o, String name) throws Exception
{
- if (StringUtils.isNotEmpty(name))
+ if (StringUtils.isNotNull(o) && StringUtils.isNotEmpty(name))
{
Class<?> clazz = o.getClass();
Field field = clazz.getDeclaredField(name);
@@ -854,6 +909,21 @@
}
}
this.fields = this.fields.stream().sorted(Comparator.comparing(objects -> ((Excel) objects[1]).sort())).collect(Collectors.toList());
+ this.maxHeight = getRowHeight();
+ }
+
+ /**
+ * 根据注解获取最大行高
+ */
+ public short getRowHeight()
+ {
+ double maxHeight = 0;
+ for (Object[] os : this.fields)
+ {
+ Excel excel = (Excel) os[1];
+ maxHeight = maxHeight > excel.height() ? maxHeight : excel.height();
+ }
+ return (short) (maxHeight * 20);
}
/**
@@ -915,10 +985,10 @@
Cell cell = row.getCell(column);
if (StringUtils.isNotNull(cell))
{
- if (cell.getCellTypeEnum() == CellType.NUMERIC || cell.getCellTypeEnum() == CellType.FORMULA)
+ if (cell.getCellType() == CellType.NUMERIC || cell.getCellType() == CellType.FORMULA)
{
val = cell.getNumericCellValue();
- if (HSSFDateUtil.isCellDateFormatted(cell))
+ if (DateUtil.isCellDateFormatted(cell))
{
val = DateUtil.getJavaDate((Double) val); // POI Excel 日期格式转换
}
@@ -934,15 +1004,15 @@
}
}
}
- else if (cell.getCellTypeEnum() == CellType.STRING)
+ else if (cell.getCellType() == CellType.STRING)
{
val = cell.getStringCellValue();
}
- else if (cell.getCellTypeEnum() == CellType.BOOLEAN)
+ else if (cell.getCellType() == CellType.BOOLEAN)
{
val = cell.getBooleanCellValue();
}
- else if (cell.getCellTypeEnum() == CellType.ERROR)
+ else if (cell.getCellType() == CellType.ERROR)
{
val = cell.getErrorCellValue();
}
--
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