From 50fc2989eeda1e5bbdf0a67dd15fa545db2370ed Mon Sep 17 00:00:00 2001
From: RuoYi <yzz_ivy@163.com>
Date: Wed, 25 Mar 2026 13:03:12 +0800
Subject: [PATCH] 修复typescript版多表代码生成报错问题
---
ruoyi-common/ruoyi-common-core/src/main/java/com/ruoyi/common/core/utils/poi/ExcelUtil.java | 19 ++++++++++++++++---
1 files changed, 16 insertions(+), 3 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 c2be4c6..500b60e 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
@@ -19,7 +19,7 @@
import java.util.Map;
import java.util.Set;
import java.util.stream.Collectors;
-import javax.servlet.http.HttpServletResponse;
+import jakarta.servlet.http.HttpServletResponse;
import org.apache.commons.lang3.ArrayUtils;
import org.apache.commons.lang3.RegExUtils;
import org.apache.commons.lang3.reflect.FieldUtils;
@@ -78,6 +78,11 @@
public static final String FORMULA_REGEX_STR = "=|-|\\+|@";
public static final String[] FORMULA_STR = { "=", "-", "+", "@" };
+
+ /**
+ * 单元格样式缓存
+ */
+ private Map<String, CellStyle> cellStyleCache = new HashMap<String, CellStyle>();
/**
* Excel sheet最大行数，默认65536
@@ -382,7 +387,7 @@
Object val = this.getCellValue(row, entry.getKey());
// 如果不存在实例则新建.
- entity = (entity == null ? clazz.newInstance() : entity);
+ entity = (entity == null ? clazz.getDeclaredConstructor().newInstance() : entity);
// 从map中得到对应列的field.
Field field = (Field) entry.getValue()[0];
Excel attr = (Excel) entry.getValue()[1];
@@ -975,6 +980,7 @@
/**
* 添加单元格
*/
+ @SuppressWarnings("deprecation")
public Cell addCell(Excel attr, Row row, T vo, Field field, int column)
{
Cell cell = null;
@@ -1042,9 +1048,16 @@
*/
private CellStyle createCellStyle(CellStyle cellStyle, String format)
{
+ String key = cellStyle.getIndex() + "|" + format;
+ CellStyle cached = cellStyleCache.get(key);
+ if (cached != null)
+ {
+ return cached;
+ }
CellStyle style = wb.createCellStyle();
style.cloneStyleFrom(cellStyle);
style.setDataFormat(wb.getCreationHelper().createDataFormat().getFormat(format));
+ cellStyleCache.put(key, style);
return style;
}
@@ -1240,7 +1253,7 @@
{
try
{
- Object instance = excel.handler().newInstance();
+ Object instance = excel.handler().getDeclaredConstructor().newInstance();
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);
}
--
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