init

ruoyi-common/src/main/java/com/ruoyi/common/convert/ExcelBigNumberConvert.java

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+package com.ruoyi.common.convert;
+
+import cn.hutool.core.convert.Convert;
+import cn.hutool.core.util.ObjectUtil;
+import com.alibaba.excel.converters.Converter;
+import com.alibaba.excel.enums.CellDataTypeEnum;
+import com.alibaba.excel.metadata.GlobalConfiguration;
+import com.alibaba.excel.metadata.data.ReadCellData;
+import com.alibaba.excel.metadata.data.WriteCellData;
+import com.alibaba.excel.metadata.property.ExcelContentProperty;
+import lombok.extern.slf4j.Slf4j;
+
+import java.math.BigDecimal;
+
+/**
+ * 大数值转换
+ * Excel 数值长度位15位 大于15位的数值转换位字符串
+ *
+ * @author Lion Li
+ */
+@Slf4j
+public class ExcelBigNumberConvert implements Converter<Long> {
+
+    @Override
+    public Class<Long> supportJavaTypeKey() {
+        return Long.class;
+    }
+
+    @Override
+    public CellDataTypeEnum supportExcelTypeKey() {
+        return CellDataTypeEnum.STRING;
+    }
+
+    @Override
+    public Long convertToJavaData(ReadCellData<?> cellData, ExcelContentProperty contentProperty, GlobalConfiguration globalConfiguration) {
+        return Convert.toLong(cellData.getData());
+    }
+
+    @Override
+    public WriteCellData<Object> convertToExcelData(Long object, ExcelContentProperty contentProperty, GlobalConfiguration globalConfiguration) {
+        if (ObjectUtil.isNotNull(object)) {
+            String str = Convert.toStr(object);
+            if (str.length() > 15) {
+                return new WriteCellData<>(str);
+            }
+        }
+        WriteCellData<Object> cellData = new WriteCellData<>(new BigDecimal(object));
+        cellData.setType(CellDataTypeEnum.NUMBER);
+        return cellData;
+    }
+
+}