Excel注解支持backgroundColor属性设置背景色

ruoyi-common/ruoyi-common-core/src/main/java/com/ruoyi/common/core/annotation/Excel.java

@@ -104,7 +104,22 @@ public @interface Excel
     public ColumnType cellType() default ColumnType.STRING;
 
     /**
-     * 导出字体颜色
+     * 导出列头背景色
+     */
+    public IndexedColors headerBackgroundColor() default IndexedColors.GREY_50_PERCENT;
+
+    /**
+     * 导出列头字体颜色
+     */
+    public IndexedColors headerColor() default IndexedColors.WHITE;
+
+    /**
+     * 导出单元格背景色
+     */
+    public IndexedColors backgroundColor() default IndexedColors.WHITE;
+
+    /**
+     * 导出单元格字体颜色
      */
     public IndexedColors color() default IndexedColors.BLACK;
 

ruoyi-common/ruoyi-common-core/src/main/java/com/ruoyi/common/core/utils/poi/ExcelUtil.java

@@ -524,20 +524,6 @@ public class ExcelUtil<T>
         style.setFont(dataFont);
         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);
@@ -547,24 +533,60 @@ public class ExcelUtil<T>
         style.setFont(totalFont);
         styles.put("total", style);
 
-        styles.putAll(annotationStyles(wb));
+        styles.putAll(annotationHeaderStyles(wb, styles));
+
+        styles.putAll(annotationDataStyles(wb));
 
         return styles;
     }
 
     /**
-     * 根据Excel注解创建表格样式
+     * 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 = 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> annotationStyles(Workbook wb)
+    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 = "data_" + excel.align() + "_" + excel.color();
+            String key = StringUtils.format("data_{}_{}_{}", excel.align(), excel.color(), excel.backgroundColor());
             if (!styles.containsKey(key))
             {
                 CellStyle style = wb.createCellStyle();
@@ -579,6 +601,8 @@ public class ExcelUtil<T>
                 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);
@@ -600,7 +624,7 @@ public class ExcelUtil<T>
         // 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())));
         return cell;
     }
 
@@ -708,7 +732,7 @@ public class ExcelUtil<T>
             {
                 // 创建cell
                 cell = row.createCell(column);
-                cell.setCellStyle(styles.get("data_" + attr.align() + "_" + attr.color()));
+                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);