<!-- https://mvnrepository.com/artifact/com.alibaba/easyexcel -->
            <dependency>
                <groupId>com.alibaba</groupId>
                <artifactId>easyexcel</artifactId>
                <version>2.1.1</version>
            </dependency>

@AllArgsConstructor
@NoArgsConstructor
@Data
public class OperationLog {
    //    @JsonFormat(shape = JsonFormat.Shape.STRING)
    @ExcelProperty(value = "id", converter = StringConverter.class,index = 0)
    private String id; //日志id
    @ExcelProperty(value = "操作人",index = 1)
    private String userCode; //操作人
    @ExcelProperty(value = "操作ip",index = 2)
    private String ip; //操作ip
    @ExcelProperty(value = "操作類型",index = 3)
    private String type; //操作類型
    @ExcelProperty(value = "操作名稱",index = 4)
    private String description; //操作名稱
    @ExcelProperty(value = "操作模塊",index = 5)
    private String model; //操作模塊
    @ExcelProperty(value = "操作時(shí)間",index = 6)
    @JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss", timezone = "GMT+8")
    @ExcelIgnore
    private String operationTime; //操作時(shí)間
    @ExcelProperty(value = "操作結(jié)果",index = 7)
    private String result; //操作結(jié)果
}

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;
/**
 * @program: family-doctor
 * @author: 阿水
 * @create: 2023-06-16 20:44
 **/
public class StringConverter implements Converter<String> {
    @Override
    public Class<String> supportJavaTypeKey() {
        return String.class;
    }
    @Override
    public CellDataTypeEnum supportExcelTypeKey() {
        return CellDataTypeEnum.STRING;
    }
    @Override
    public String convertToJavaData(CellData cellData, ExcelContentProperty contentProperty,
                                    GlobalConfiguration globalConfiguration) throws Exception {
        return cellData.getStringValue();
    }
    @Override
    public CellData<?> convertToExcelData(String value, ExcelContentProperty contentProperty,
                                          GlobalConfiguration globalConfiguration) throws Exception {
        return new CellData<>(value);
    }
}

/**
     * 根據(jù)ids批量導(dǎo)出
     * @param ids
     * @return
     */
    @Override
    public HttpResult<?> batchExportLogByIds(List<String> ids) {
        Query query = new Query(Criteria.where("_id").in(ids));
        List<OperationLog> resultList = mongoTemplate.find(query, OperationLog.class);
        // 讀取已有的Excel文件內(nèi)容
        List<OperationLog> existingList = readExistingExcelData();
        // 合并新數(shù)據(jù)和已有數(shù)據(jù)
        List<OperationLog> mergedList = new ArrayList<>(existingList);
        mergedList.addAll(resultList);
        // 設(shè)置寫入文件夾地址和Excel文件名稱
        String filename = "F:\\lps\\write.xlsx";
        ExcelWriter excelWriter = null;
        try {
            excelWriter = EasyExcel.write(filename, OperationLog.class)
                    .registerConverter(new StringConverter())
                    .build();
            WriteSheet writeSheet = EasyExcel.writerSheet("日志").build();
            excelWriter.write(mergedList, writeSheet);
        } catch (Exception e) {
            e.printStackTrace();
            return new HttpResult<>().fail();
        } finally {
            if (excelWriter != null) {
                excelWriter.finish();
            }
        }
        return new HttpResult<>().ok();
    }
    // 讀取已有的Excel文件內(nèi)容
    private List<OperationLog> readExistingExcelData() {
        String filename = "F:\\lps\\write.xlsx";
        List<OperationLog> existingList = new ArrayList<>();
        try {
            ExcelReader excelReader = EasyExcel.read(filename, OperationLog.class, new OperationLogDataListener(existingList)).build();
            ReadSheet readSheet = EasyExcel.readSheet("日志").build();
            excelReader.read(readSheet);
            excelReader.finish();
        } catch (Exception e) {
            e.printStackTrace();
        }
        return existingList;
    }
    // 自定義監(jiān)聽器
    private class OperationLogDataListener extends AnalysisEventListener<OperationLog> {
        private List<OperationLog> dataList;
        public OperationLogDataListener(List<OperationLog> dataList) {
            this.dataList = dataList;
        }
        @Override
        public void invoke(OperationLog operationLog, AnalysisContext analysisContext) {
            dataList.add(operationLog);
        }
        @Override
        public void doAfterAllAnalysed(AnalysisContext analysisContext) {
            // 數(shù)據(jù)處理完畢后的操作（如果需要）
        }
    }