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icefrog POI工具类（对MS Office操作）

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package com.whaleal.icefrog.poi.excel;

import org.apache.poi.hssf.usermodel.HSSFWorkbook;
import org.apache.poi.ss.extractor.ExcelExtractor;
import org.apache.poi.ss.usermodel.Workbook;
import org.apache.poi.xssf.extractor.XSSFExcelExtractor;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;

/**
 * {@link ExcelExtractor}工具封装
 *
 * @author Looly
 * @author wh
 * @since 1.0.0
 */
public class ExcelExtractorUtil {
    /**
     * 获取 {@link ExcelExtractor} 对象
     *
     * @param wb {@link Workbook}
     * @return {@link ExcelExtractor}
     */
    public static ExcelExtractor getExtractor( Workbook wb ) {
        ExcelExtractor extractor;
        if (wb instanceof HSSFWorkbook) {
            extractor = new org.apache.poi.hssf.extractor.ExcelExtractor((HSSFWorkbook) wb);
        } else {
            extractor = new XSSFExcelExtractor((XSSFWorkbook) wb);
        }
        return extractor;
    }

    /**
     * 读取为文本格式

     * 使用{@link ExcelExtractor} 提取Excel内容
     *
     * @param wb            {@link Workbook}
     * @param withSheetName 是否附带sheet名
     * @return Excel文本
     * @since 1.0.0
     */
    public static String readAsText( Workbook wb, boolean withSheetName ) {
        final ExcelExtractor extractor = getExtractor(wb);
        extractor.setIncludeSheetNames(withSheetName);
        return extractor.getText();
    }
}