76 lines
2.7 KiB
Java
76 lines
2.7 KiB
Java
package com.ruoyi.common.convert;
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import cn.hutool.core.annotation.AnnotationUtil;
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import cn.hutool.core.convert.Convert;
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import cn.hutool.core.util.ObjectUtil;
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import com.alibaba.excel.converters.Converter;
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import com.alibaba.excel.enums.CellDataTypeEnum;
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import com.alibaba.excel.metadata.GlobalConfiguration;
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import com.alibaba.excel.metadata.data.ReadCellData;
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import com.alibaba.excel.metadata.data.WriteCellData;
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import com.alibaba.excel.metadata.property.ExcelContentProperty;
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import com.ruoyi.common.annotation.ExcelEnumFormat;
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import com.ruoyi.common.utils.reflect.ReflectUtils;
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import lombok.extern.slf4j.Slf4j;
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import java.lang.reflect.Field;
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import java.util.HashMap;
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import java.util.Map;
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/**
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* 枚举格式化转换处理
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*
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* @author Liang
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*/
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@Slf4j
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public class ExcelEnumConvert implements Converter<Object> {
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@Override
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public Class<Object> supportJavaTypeKey() {
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return Object.class;
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}
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@Override
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public CellDataTypeEnum supportExcelTypeKey() {
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return null;
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}
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@Override
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public Object convertToJavaData(ReadCellData<?> cellData, ExcelContentProperty contentProperty, GlobalConfiguration globalConfiguration) {
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Object codeValue = cellData.getData();
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// 如果是空值
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if (ObjectUtil.isNull(codeValue)) {
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return null;
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}
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Map<Object, String> enumValueMap = beforeConvert(contentProperty);
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String textValue = enumValueMap.get(codeValue);
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return Convert.convert(contentProperty.getField().getType(), textValue);
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}
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@Override
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public WriteCellData<String> convertToExcelData(Object object, ExcelContentProperty contentProperty, GlobalConfiguration globalConfiguration) {
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if (ObjectUtil.isNull(object)) {
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return new WriteCellData<>("");
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}
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Map<Object, String> enumValueMap = beforeConvert(contentProperty);
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String value = Convert.toStr(enumValueMap.get(object), "");
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return new WriteCellData<>(value);
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}
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private Map<Object, String> beforeConvert(ExcelContentProperty contentProperty) {
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ExcelEnumFormat anno = getAnnotation(contentProperty.getField());
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Map<Object, String> enumValueMap = new HashMap<>();
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Enum<?>[] enumConstants = anno.enumClass().getEnumConstants();
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for (Enum<?> enumConstant : enumConstants) {
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Object codeValue = ReflectUtils.invokeGetter(enumConstant, anno.codeField());
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String textValue = ReflectUtils.invokeGetter(enumConstant, anno.textField());
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enumValueMap.put(codeValue, textValue);
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}
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return enumValueMap;
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}
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private ExcelEnumFormat getAnnotation(Field field) {
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return AnnotationUtil.getAnnotation(field, ExcelEnumFormat.class);
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}
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}
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