Pre Merge pull request !436 from mpaster/cherry-pick-1759037399

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

@@ -1003,7 +1003,7 @@ public class ExcelUtil<T>
                 String separator = attr.separator();
                 if (StringUtils.isNotEmpty(dateFormat) && StringUtils.isNotNull(value))
                 {
-                    cell.getCellStyle().setDataFormat(this.wb.getCreationHelper().createDataFormat().getFormat(dateFormat));
+                    cell.setCellStyle(createCellStyle(cell.getCellStyle(), dateFormat));
                     cell.setCellValue(parseDateToStr(dateFormat, value));
                 }
                 else if (StringUtils.isNotEmpty(readConverterExp) && StringUtils.isNotNull(value))
@@ -1033,6 +1033,21 @@ public class ExcelUtil<T>
         return cell;
     }
 
+    /**
+     * 使用自定义格式，同时避免样式污染
+     * 
+     * @param cellStyle 从此样式复制
+     * @param format 格式匹配的字符串
+     * @return 格式化后CellStyle对象
+     */
+    private CellStyle createCellStyle(CellStyle cellStyle, String format)
+    {
+        CellStyle style = wb.createCellStyle();
+        style.cloneStyleFrom(cellStyle);
+        style.setDataFormat(wb.getCreationHelper().createDataFormat().getFormat(format));
+        return style;
+    }
+
     /**
      * 设置 POI XSSFSheet 单元格提示或选择框
      * 

ruoyi-modules/ruoyi-system/src/main/resources/mapper/system/SysMenuMapper.xml

@@ -149,7 +149,7 @@
 			<if test="visible != null">visible = #{visible},</if>
 			<if test="status != null">status = #{status},</if>
 			<if test="perms !=null">perms = #{perms},</if>
-			<if test="icon !=null and icon != ''">icon = #{icon},</if>
+			icon = #{icon},
 			<if test="remark != null and remark != ''">remark = #{remark},</if>
 			<if test="updateBy != null and updateBy != ''">update_by = #{updateBy},</if>
 			update_time = sysdate()

ruoyi-ui/src/views/system/menu/index.vue

@@ -139,7 +139,7 @@
                 @show="$refs['iconSelect'].reset()"
               >
                 <IconSelect ref="iconSelect" @selected="selected" :active-icon="form.icon" />
-                <el-input slot="reference" v-model="form.icon" placeholder="点击选择图标" readonly>
+                <el-input slot="reference" v-model="form.icon" placeholder="点击选择图标" clearable>
                   <svg-icon
                     v-if="form.icon"
                     slot="prefix"