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add 增加 easyexcel 工具类

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疯狂的狮子li
2021-08-03 19:28:15 +08:00
parent 70b77d9801
commit 170908ef8d
3 changed files with 249 additions and 0 deletions
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ruoyi-common/src/main/java/com/ruoyi/common/convert/ExcelDictConvert.java Normal file
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package com.ruoyi.common.convert;
import cn.hutool.core.annotation.AnnotationUtil;
import cn.hutool.core.convert.Convert;
import com.alibaba.excel.converters.Converter;
import com.alibaba.excel.enums.CellDataTypeEnum;
import com.alibaba.excel.metadata.CellData;
import com.alibaba.excel.metadata.GlobalConfiguration;
import com.alibaba.excel.metadata.property.ExcelContentProperty;
import com.ruoyi.common.annotation.ExcelDictFormat;
import com.ruoyi.common.utils.StringUtils;
import com.ruoyi.common.utils.poi.ExcelUtils;
import lombok.extern.slf4j.Slf4j;
import java.lang.reflect.Field;
/**
* 字典格式化转换处理
*
* @author Lion Li
*/
@Slf4j
public class ExcelDictConvert implements Converter<Object> {
@Override
public Class<Object> supportJavaTypeKey() {
return Object.class;
}
@Override
public CellDataTypeEnum supportExcelTypeKey() {
return null;
}
@Override
public Object convertToJavaData(CellData cellData, ExcelContentProperty contentProperty, GlobalConfiguration globalConfiguration) {
ExcelDictFormat anno = getAnnotation(contentProperty.getField());
String type = anno.dictType();
String label = cellData.getStringValue();
String value;
if (StringUtils.isBlank(type)) {
value = ExcelUtils.reverseByExp(label, anno.readConverterExp(), anno.separator());
} else {
value = ExcelUtils.reverseDictByExp(label, type, anno.separator());
}
return Convert.convert(contentProperty.getField().getType(), value);
}
@Override
public CellData<String> convertToExcelData(Object object, ExcelContentProperty contentProperty, GlobalConfiguration globalConfiguration) {
if (StringUtils.isNull(object)) {
return new CellData<>("");
}
ExcelDictFormat anno = getAnnotation(contentProperty.getField());
String type = anno.dictType();
String value = Convert.toStr(object);
String label;
if (StringUtils.isBlank(type)) {
label = ExcelUtils.convertByExp(value, anno.readConverterExp(), anno.separator());
} else {
label = ExcelUtils.convertDictByExp(value, type, anno.separator());
}
return new CellData<>(label);
}
private ExcelDictFormat getAnnotation(Field field) {
return AnnotationUtil.getAnnotation(field, ExcelDictFormat.class);
}
}