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package com.jchanghong.poi.excel;

import com.jchanghong.core.exceptions.DependencyException;
import com.jchanghong.core.io.FileUtil;
import com.jchanghong.core.io.IoUtil;
import com.jchanghong.core.util.ObjectUtil;
import com.jchanghong.core.util.ReUtil;
import com.jchanghong.core.util.StrUtil;
import com.jchanghong.poi.PoiChecker;
import com.jchanghong.poi.excel.cell.CellLocation;
import com.jchanghong.poi.excel.sax.Excel03SaxReader;
import com.jchanghong.poi.excel.sax.Excel07SaxReader;
import com.jchanghong.poi.excel.sax.handler.RowHandler;

import java.io.BufferedInputStream;
import java.io.File;
import java.io.InputStream;

/**
 * Excel工具类
 * 
 * @author Looly
 *
 */
public class ExcelUtil {

	// ------------------------------------------------------------------------------------ Read by Sax start
	/**
	 * 通过Sax方式读取Excel,同时支持03和07格式
	 * 
	 * @param path Excel文件路径
	 * @param sheetIndex sheet序号
	 * @param rowHandler 行处理器
	 * @since 3.2.0
	 */
	public static void readBySax(String path, int sheetIndex, RowHandler rowHandler) {
		BufferedInputStream in = null;
		try {
			in = FileUtil.getInputStream(path);
			readBySax(in, sheetIndex, rowHandler);
		} finally {
			IoUtil.close(in);
		}
	}

	/**
	 * 通过Sax方式读取Excel,同时支持03和07格式
	 * 
	 * @param file Excel文件
	 * @param sheetIndex sheet序号
	 * @param rowHandler 行处理器
	 * @since 3.2.0
	 */
	public static void readBySax(File file, int sheetIndex, RowHandler rowHandler) {
		BufferedInputStream in = null;
		try {
			in = FileUtil.getInputStream(file);
			readBySax(in, sheetIndex, rowHandler);
		} finally {
			IoUtil.close(in);
		}
	}

	/**
	 * 通过Sax方式读取Excel,同时支持03和07格式
	 * 
	 * @param in Excel流
	 * @param sheetIndex sheet序号
	 * @param rowHandler 行处理器
	 * @since 3.2.0
	 */
	public static void readBySax(InputStream in, int sheetIndex, RowHandler rowHandler) {
		in = IoUtil.toMarkSupportStream(in);
		if (ExcelFileUtil.isXlsx(in)) {
			read07BySax(in, sheetIndex, rowHandler);
		} else {
			read03BySax(in, sheetIndex, rowHandler);
		}
	}

	/**
	 * Sax方式读取Excel07
	 * 
	 * @param in 输入流
	 * @param sheetIndex Sheet索引,-1表示全部Sheet, 0表示第一个Sheet
	 * @param rowHandler 行处理器
	 * @return {@link Excel07SaxReader}
	 * @since 3.2.0
	 */
	public static Excel07SaxReader read07BySax(InputStream in, int sheetIndex, RowHandler rowHandler) {
		try {
			return new Excel07SaxReader(rowHandler).read(in, sheetIndex);
		} catch (NoClassDefFoundError e) {
			throw new DependencyException(ObjectUtil.defaultIfNull(e.getCause(), e), PoiChecker.NO_POI_ERROR_MSG);
		}
	}

	/**
	 * Sax方式读取Excel07
	 * 
	 * @param file 文件
	 * @param sheetIndex Sheet索引,-1表示全部Sheet, 0表示第一个Sheet
	 * @param rowHandler 行处理器
	 * @return {@link Excel07SaxReader}
	 * @since 3.2.0
	 */
	public static Excel07SaxReader read07BySax(File file, int sheetIndex, RowHandler rowHandler) {
		try {
			return new Excel07SaxReader(rowHandler).read(file, sheetIndex);
		} catch (NoClassDefFoundError e) {
			throw new DependencyException(ObjectUtil.defaultIfNull(e.getCause(), e), PoiChecker.NO_POI_ERROR_MSG);
		}
	}

	/**
	 * Sax方式读取Excel07
	 * 
	 * @param path 路径
	 * @param sheetIndex Sheet索引,-1表示全部Sheet, 0表示第一个Sheet
	 * @param rowHandler 行处理器
	 * @return {@link Excel07SaxReader}
	 * @since 3.2.0
	 */
	public static Excel07SaxReader read07BySax(String path, int sheetIndex, RowHandler rowHandler) {
		try {
			return new Excel07SaxReader(rowHandler).read(path, sheetIndex);
		} catch (NoClassDefFoundError e) {
			throw new DependencyException(ObjectUtil.defaultIfNull(e.getCause(), e), PoiChecker.NO_POI_ERROR_MSG);
		}
	}

	/**
	 * Sax方式读取Excel03
	 * 
	 * @param in 输入流
	 * @param sheetIndex Sheet索引,-1表示全部Sheet, 0表示第一个Sheet
	 * @param rowHandler 行处理器
	 * @return {@link Excel07SaxReader}
	 * @since 3.2.0
	 */
	public static Excel03SaxReader read03BySax(InputStream in, int sheetIndex, RowHandler rowHandler) {
		try {
			return new Excel03SaxReader(rowHandler).read(in, sheetIndex);
		} catch (NoClassDefFoundError e) {
			throw new DependencyException(ObjectUtil.defaultIfNull(e.getCause(), e), PoiChecker.NO_POI_ERROR_MSG);
		}
	}

	/**
	 * Sax方式读取Excel03
	 * 
	 * @param file 文件
	 * @param sheetIndex Sheet索引,-1表示全部Sheet, 0表示第一个Sheet
	 * @param rowHandler 行处理器
	 * @return {@link Excel03SaxReader}
	 * @since 3.2.0
	 */
	public static Excel03SaxReader read03BySax(File file, int sheetIndex, RowHandler rowHandler) {
		try {
			return new Excel03SaxReader(rowHandler).read(file, sheetIndex);
		} catch (NoClassDefFoundError e) {
			throw new DependencyException(ObjectUtil.defaultIfNull(e.getCause(), e), PoiChecker.NO_POI_ERROR_MSG);
		}
	}

	/**
	 * Sax方式读取Excel03
	 * 
	 * @param path 路径
	 * @param sheetIndex Sheet索引,-1表示全部Sheet, 0表示第一个Sheet
	 * @param rowHandler 行处理器
	 * @return {@link Excel03SaxReader}
	 * @since 3.2.0
	 */
	public static Excel03SaxReader read03BySax(String path, int sheetIndex, RowHandler rowHandler) {
		try {
			return new Excel03SaxReader(rowHandler).read(path, sheetIndex);
		} catch (NoClassDefFoundError e) {
			throw new DependencyException(ObjectUtil.defaultIfNull(e.getCause(), e), PoiChecker.NO_POI_ERROR_MSG);
		}
	}
	// ------------------------------------------------------------------------------------ Read by Sax end

	// ------------------------------------------------------------------------------------------------ getReader
	/**
	 * 获取Excel读取器,通过调用{@link ExcelReader}的read或readXXX方法读取Excel内容
* 默认调用第一个sheet * * @param bookFilePath Excel文件路径,绝对路径或相对于ClassPath路径 * @return {@link ExcelReader} * @since 3.1.1 */ public static ExcelReader getReader(String bookFilePath) { return getReader(bookFilePath, 0); } /** * 获取Excel读取器,通过调用{@link ExcelReader}的read或readXXX方法读取Excel内容
* 默认调用第一个sheet * * @param bookFile Excel文件 * @return {@link ExcelReader} */ public static ExcelReader getReader(File bookFile) { return getReader(bookFile, 0); } /** * 获取Excel读取器,通过调用{@link ExcelReader}的read或readXXX方法读取Excel内容 * * @param bookFilePath Excel文件路径,绝对路径或相对于ClassPath路径 * @param sheetIndex sheet序号,0表示第一个sheet * @return {@link ExcelReader} * @since 3.1.1 */ public static ExcelReader getReader(String bookFilePath, int sheetIndex) { try { return new ExcelReader(bookFilePath, sheetIndex); } catch (NoClassDefFoundError e) { throw new DependencyException(ObjectUtil.defaultIfNull(e.getCause(), e), PoiChecker.NO_POI_ERROR_MSG); } } /** * 获取Excel读取器,通过调用{@link ExcelReader}的read或readXXX方法读取Excel内容 * * @param bookFile Excel文件 * @param sheetIndex sheet序号,0表示第一个sheet * @return {@link ExcelReader} */ public static ExcelReader getReader(File bookFile, int sheetIndex) { try { return new ExcelReader(bookFile, sheetIndex); } catch (NoClassDefFoundError e) { throw new DependencyException(ObjectUtil.defaultIfNull(e.getCause(), e), PoiChecker.NO_POI_ERROR_MSG); } } /** * 获取Excel读取器,通过调用{@link ExcelReader}的read或readXXX方法读取Excel内容 * * @param bookFile Excel文件 * @param sheetName sheet名,第一个默认是sheet1 * @return {@link ExcelReader} */ public static ExcelReader getReader(File bookFile, String sheetName) { try { return new ExcelReader(bookFile, sheetName); } catch (NoClassDefFoundError e) { throw new DependencyException(ObjectUtil.defaultIfNull(e.getCause(), e), PoiChecker.NO_POI_ERROR_MSG); } } /** * 获取Excel读取器,通过调用{@link ExcelReader}的read或readXXX方法读取Excel内容
* 默认调用第一个sheet,读取结束自动关闭流 * * @param bookStream Excel文件的流 * @return {@link ExcelReader} */ public static ExcelReader getReader(InputStream bookStream) { return getReader(bookStream, 0, true); } /** * 获取Excel读取器,通过调用{@link ExcelReader}的read或readXXX方法读取Excel内容
* 默认调用第一个sheet * * @param bookStream Excel文件的流 * @param closeAfterRead 读取结束是否关闭流 * @return {@link ExcelReader} * @since 4.0.3 */ public static ExcelReader getReader(InputStream bookStream, boolean closeAfterRead) { try { return getReader(bookStream, 0, closeAfterRead); } catch (NoClassDefFoundError e) { throw new DependencyException(ObjectUtil.defaultIfNull(e.getCause(), e), PoiChecker.NO_POI_ERROR_MSG); } } /** * 获取Excel读取器,通过调用{@link ExcelReader}的read或readXXX方法读取Excel内容
* 读取结束自动关闭流 * * @param bookStream Excel文件的流 * @param sheetIndex sheet序号,0表示第一个sheet * @return {@link ExcelReader} */ public static ExcelReader getReader(InputStream bookStream, int sheetIndex) { try { return new ExcelReader(bookStream, sheetIndex, true); } catch (NoClassDefFoundError e) { throw new DependencyException(ObjectUtil.defaultIfNull(e.getCause(), e), PoiChecker.NO_POI_ERROR_MSG); } } /** * 获取Excel读取器,通过调用{@link ExcelReader}的read或readXXX方法读取Excel内容 * * @param bookStream Excel文件的流 * @param sheetIndex sheet序号,0表示第一个sheet * @param closeAfterRead 读取结束是否关闭流 * @return {@link ExcelReader} * @since 4.0.3 */ public static ExcelReader getReader(InputStream bookStream, int sheetIndex, boolean closeAfterRead) { try { return new ExcelReader(bookStream, sheetIndex, closeAfterRead); } catch (NoClassDefFoundError e) { throw new DependencyException(ObjectUtil.defaultIfNull(e.getCause(), e), PoiChecker.NO_POI_ERROR_MSG); } } /** * 获取Excel读取器,通过调用{@link ExcelReader}的read或readXXX方法读取Excel内容
* 读取结束自动关闭流 * * @param bookStream Excel文件的流 * @param sheetName sheet名,第一个默认是sheet1 * @return {@link ExcelReader} */ public static ExcelReader getReader(InputStream bookStream, String sheetName) { try { return new ExcelReader(bookStream, sheetName, true); } catch (NoClassDefFoundError e) { throw new DependencyException(ObjectUtil.defaultIfNull(e.getCause(), e), PoiChecker.NO_POI_ERROR_MSG); } } /** * 获取Excel读取器,通过调用{@link ExcelReader}的read或readXXX方法读取Excel内容 * * @param bookStream Excel文件的流 * @param sheetName sheet名,第一个默认是sheet1 * @param closeAfterRead 读取结束是否关闭流 * @return {@link ExcelReader} */ public static ExcelReader getReader(InputStream bookStream, String sheetName, boolean closeAfterRead) { try { return new ExcelReader(bookStream, sheetName, closeAfterRead); } catch (NoClassDefFoundError e) { throw new DependencyException(ObjectUtil.defaultIfNull(e.getCause(), e), PoiChecker.NO_POI_ERROR_MSG); } } // ------------------------------------------------------------------------------------------------ getWriter /** * 获得{@link ExcelWriter},默认写出到第一个sheet
* 不传入写出的Excel文件路径,只能调用ExcelWriter#flush(OutputStream)方法写出到流
* 若写出到文件,还需调用{@link ExcelWriter#setDestFile(File)}方法自定义写出的文件,然后调用{@link ExcelWriter#flush()}方法写出到文件 * * @return {@link ExcelWriter} * @since 3.2.1 */ public static ExcelWriter getWriter() { try { return new ExcelWriter(); } catch (NoClassDefFoundError e) { throw new DependencyException(ObjectUtil.defaultIfNull(e.getCause(), e), PoiChecker.NO_POI_ERROR_MSG); } } /** * 获得{@link ExcelWriter},默认写出到第一个sheet
* 不传入写出的Excel文件路径,只能调用ExcelWriter#flush(OutputStream)方法写出到流
* 若写出到文件,还需调用{@link ExcelWriter#setDestFile(File)}方法自定义写出的文件,然后调用{@link ExcelWriter#flush()}方法写出到文件 * * @param isXlsx 是否为xlsx格式 * @return {@link ExcelWriter} * @since 3.2.1 */ public static ExcelWriter getWriter(boolean isXlsx) { try { return new ExcelWriter(isXlsx); } catch (NoClassDefFoundError e) { throw new DependencyException(ObjectUtil.defaultIfNull(e.getCause(), e), PoiChecker.NO_POI_ERROR_MSG); } } /** * 获得{@link ExcelWriter},默认写出到第一个sheet * * @param destFilePath 目标文件路径 * @return {@link ExcelWriter} */ public static ExcelWriter getWriter(String destFilePath) { try { return new ExcelWriter(destFilePath); } catch (NoClassDefFoundError e) { throw new DependencyException(ObjectUtil.defaultIfNull(e.getCause(), e), PoiChecker.NO_POI_ERROR_MSG); } } /** * 获得{@link ExcelWriter},默认写出到第一个sheet * * @param sheetName Sheet名 * @return {@link ExcelWriter} * @since 4.5.18 */ public static ExcelWriter getWriterWithSheet(String sheetName) { try { return new ExcelWriter((File)null, sheetName); } catch (NoClassDefFoundError e) { throw new DependencyException(ObjectUtil.defaultIfNull(e.getCause(), e), PoiChecker.NO_POI_ERROR_MSG); } } /** * 获得{@link ExcelWriter},默认写出到第一个sheet,名字为sheet1 * * @param destFile 目标文件 * @return {@link ExcelWriter} */ public static ExcelWriter getWriter(File destFile) { try { return new ExcelWriter(destFile); } catch (NoClassDefFoundError e) { throw new DependencyException(ObjectUtil.defaultIfNull(e.getCause(), e), PoiChecker.NO_POI_ERROR_MSG); } } /** * 获得{@link ExcelWriter} * * @param destFilePath 目标文件路径 * @param sheetName sheet表名 * @return {@link ExcelWriter} */ public static ExcelWriter getWriter(String destFilePath, String sheetName) { try { return new ExcelWriter(destFilePath, sheetName); } catch (NoClassDefFoundError e) { throw new DependencyException(ObjectUtil.defaultIfNull(e.getCause(), e), PoiChecker.NO_POI_ERROR_MSG); } } /** * 获得{@link ExcelWriter} * * @param destFile 目标文件 * @param sheetName sheet表名 * @return {@link ExcelWriter} */ public static ExcelWriter getWriter(File destFile, String sheetName) { try { return new ExcelWriter(destFile, sheetName); } catch (NoClassDefFoundError e) { throw new DependencyException(ObjectUtil.defaultIfNull(e.getCause(), e), PoiChecker.NO_POI_ERROR_MSG); } } // ------------------------------------------------------------------------------------------------ getBigWriter /** * 获得{@link BigExcelWriter},默认写出到第一个sheet
* 不传入写出的Excel文件路径,只能调用ExcelWriter#flush(OutputStream)方法写出到流
* 若写出到文件,还需调用{@link BigExcelWriter#setDestFile(File)}方法自定义写出的文件,然后调用{@link BigExcelWriter#flush()}方法写出到文件 * * @return {@link BigExcelWriter} * @since 4.1.13 */ public static ExcelWriter getBigWriter() { try { return new BigExcelWriter(); } catch (NoClassDefFoundError e) { throw new DependencyException(ObjectUtil.defaultIfNull(e.getCause(), e), PoiChecker.NO_POI_ERROR_MSG); } } /** * 获得{@link BigExcelWriter},默认写出到第一个sheet
* 不传入写出的Excel文件路径,只能调用ExcelWriter#flush(OutputStream)方法写出到流
* 若写出到文件,还需调用{@link BigExcelWriter#setDestFile(File)}方法自定义写出的文件,然后调用{@link BigExcelWriter#flush()}方法写出到文件 * * @param rowAccessWindowSize 在内存中的行数 * @return {@link BigExcelWriter} * @since 4.1.13 */ public static ExcelWriter getBigWriter(int rowAccessWindowSize) { try { return new BigExcelWriter(rowAccessWindowSize); } catch (NoClassDefFoundError e) { throw new DependencyException(ObjectUtil.defaultIfNull(e.getCause(), e), PoiChecker.NO_POI_ERROR_MSG); } } /** * 获得{@link BigExcelWriter},默认写出到第一个sheet * * @param destFilePath 目标文件路径 * @return {@link BigExcelWriter} */ public static BigExcelWriter getBigWriter(String destFilePath) { try { return new BigExcelWriter(destFilePath); } catch (NoClassDefFoundError e) { throw new DependencyException(ObjectUtil.defaultIfNull(e.getCause(), e), PoiChecker.NO_POI_ERROR_MSG); } } /** * 获得{@link BigExcelWriter},默认写出到第一个sheet,名字为sheet1 * * @param destFile 目标文件 * @return {@link BigExcelWriter} */ public static BigExcelWriter getBigWriter(File destFile) { try { return new BigExcelWriter(destFile); } catch (NoClassDefFoundError e) { throw new DependencyException(ObjectUtil.defaultIfNull(e.getCause(), e), PoiChecker.NO_POI_ERROR_MSG); } } /** * 获得{@link BigExcelWriter} * * @param destFilePath 目标文件路径 * @param sheetName sheet表名 * @return {@link BigExcelWriter} */ public static BigExcelWriter getBigWriter(String destFilePath, String sheetName) { try { return new BigExcelWriter(destFilePath, sheetName); } catch (NoClassDefFoundError e) { throw new DependencyException(ObjectUtil.defaultIfNull(e.getCause(), e), PoiChecker.NO_POI_ERROR_MSG); } } /** * 获得{@link BigExcelWriter} * * @param destFile 目标文件 * @param sheetName sheet表名 * @return {@link BigExcelWriter} */ public static BigExcelWriter getBigWriter(File destFile, String sheetName) { try { return new BigExcelWriter(destFile, sheetName); } catch (NoClassDefFoundError e) { throw new DependencyException(ObjectUtil.defaultIfNull(e.getCause(), e), PoiChecker.NO_POI_ERROR_MSG); } } /** * 将Sheet列号变为列名 * * @param index 列号, 从0开始 * @return 0-》A; 1-》B...26-》AA * @since 4.1.20 */ public static String indexToColName(int index) { if (index < 0) { return null; } final StringBuilder colName = StrUtil.builder(); do { if (colName.length() > 0) { index--; } int remainder = index % 26; colName.append((char) (remainder + 'A')); index = (index - remainder) / 26; } while (index > 0); return colName.reverse().toString(); } /** * 根据表元的列名转换为列号 * * @param colName 列名, 从A开始 * @return A1-》0; B1-》1...AA1-》26 * @since 4.1.20 */ public static int colNameToIndex(String colName) { int length = colName.length(); char c; int index = -1; for (int i = 0; i < length; i++) { c = Character.toUpperCase(colName.charAt(i)); if (Character.isDigit(c)) { break;// 确定指定的char值是否为数字 } index = (index + 1) * 26 + (int) c - 'A'; } return index; } /** * 将Excel中地址标识符(例如A11,B5)等转换为行列表示
* 例如:A11 -》 x:0,y:10,B5-》x:1,y:4 * * @param locationRef 单元格地址标识符,例如A11,B5 * @return 坐标点,x表示行,从0开始,y表示列,从0开始 * @since 5.1.4 */ public static CellLocation toLocation(String locationRef){ final int x = colNameToIndex(locationRef); final int y = ReUtil.getFirstNumber(locationRef) -1; return new CellLocation(x, y); } }




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