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package com.ruoyi.common.convert;
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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 lombok.extern.slf4j.Slf4j;
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import java.math.BigDecimal;
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/**
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* 大数值转换
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* Excel 数值长度位15位 大于15位的数值转换位字符串
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*
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* @author Lion Li
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*/
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@Slf4j
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public class ExcelBigNumberConvert implements Converter<Long> {
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@Override
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public Class<Long> supportJavaTypeKey() {
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return Long.class;
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}
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@Override
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public CellDataTypeEnum supportExcelTypeKey() {
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return CellDataTypeEnum.STRING;
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}
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@Override
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public Long convertToJavaData(ReadCellData<?> cellData, ExcelContentProperty contentProperty, GlobalConfiguration globalConfiguration) {
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return Convert.toLong(cellData.getData());
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}
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@Override
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public WriteCellData<Object> convertToExcelData(Long object, ExcelContentProperty contentProperty, GlobalConfiguration globalConfiguration) {
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if (ObjectUtil.isNotNull(object)) {
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String str = Convert.toStr(object);
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if (str.length() > 15) {
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return new WriteCellData<>(str);
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}
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}
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WriteCellData<Object> cellData = new WriteCellData<>(new BigDecimal(object));
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cellData.setType(CellDataTypeEnum.NUMBER);
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return cellData;
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}
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}
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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.ExcelDictFormat;
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import com.ruoyi.common.core.service.DictService;
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import com.ruoyi.common.utils.StringUtils;
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import com.ruoyi.common.utils.poi.ExcelUtil;
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import com.ruoyi.common.utils.spring.SpringUtils;
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import lombok.extern.slf4j.Slf4j;
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import java.lang.reflect.Field;
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/**
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* 字典格式化转换处理
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*
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* @author Lion Li
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*/
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@Slf4j
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public class ExcelDictConvert 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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ExcelDictFormat anno = getAnnotation(contentProperty.getField());
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String type = anno.dictType();
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String label = cellData.getStringValue();
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String value;
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if (StringUtils.isBlank(type)) {
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value = ExcelUtil.reverseByExp(label, anno.readConverterExp(), anno.separator());
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} else {
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value = SpringUtils.getBean(DictService.class).getDictValue(type, label, anno.separator());
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}
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return Convert.convert(contentProperty.getField().getType(), value);
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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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ExcelDictFormat anno = getAnnotation(contentProperty.getField());
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String type = anno.dictType();
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String value = Convert.toStr(object);
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String label;
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if (StringUtils.isBlank(type)) {
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label = ExcelUtil.convertByExp(value, anno.readConverterExp(), anno.separator());
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} else {
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label = SpringUtils.getBean(DictService.class).getDictLabel(type, value, anno.separator());
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}
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return new WriteCellData<>(label);
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}
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private ExcelDictFormat getAnnotation(Field field) {
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return AnnotationUtil.getAnnotation(field, ExcelDictFormat.class);
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}
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}
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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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cellData.checkEmpty();
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// Excel中填入的是枚举中指定的描述
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Object textValue = null;
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switch (cellData.getType()) {
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case STRING:
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case DIRECT_STRING:
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case RICH_TEXT_STRING:
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textValue = cellData.getStringValue();
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break;
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case NUMBER:
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textValue = cellData.getNumberValue();
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break;
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case BOOLEAN:
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textValue = cellData.getBooleanValue();
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break;
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default:
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throw new IllegalArgumentException("单元格类型异常!");
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}
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// 如果是空值
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if (ObjectUtil.isNull(textValue)) {
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return null;
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}
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Map<Object, String> enumCodeToTextMap = beforeConvert(contentProperty);
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// 从Java输出至Excel是code转text
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// 因此从Excel转Java应该将text与code对调
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Map<Object, Object> enumTextToCodeMap = new HashMap<>();
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enumCodeToTextMap.forEach((key, value) -> enumTextToCodeMap.put(value, key));
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// 应该从text -> code中查找
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Object codeValue = enumTextToCodeMap.get(textValue);
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return Convert.convert(contentProperty.getField().getType(), codeValue);
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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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