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package cn.hutool.poi.excel;

import cn.hutool.core.io.FileUtil;
import cn.hutool.core.io.IORuntimeException;
import cn.hutool.core.io.IoUtil;
import cn.hutool.core.util.StrUtil;
import cn.hutool.poi.exceptions.POIException;
import org.apache.poi.ss.usermodel.Sheet;
import org.apache.poi.ss.usermodel.Workbook;
import org.apache.poi.ss.usermodel.WorkbookFactory;
import org.apache.poi.xssf.streaming.SXSSFWorkbook;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;

import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;

/**
 * Excel工作簿{@link Workbook}相关工具类
 *
 * @author looly
 * @since 4.0.7
 */
public class WorkbookUtil {

	/**
	 * 创建或加载工作簿(读写模式)
	 *
	 * @param excelFilePath Excel文件路径,绝对路径或相对于ClassPath路径
	 * @return {@link Workbook}
	 * @since 3.1.1
	 */
	public static Workbook createBook(String excelFilePath) {
		return createBook(excelFilePath, false);
	}

	/**
	 * 创建或加载工作簿
	 *
	 * @param excelFilePath Excel文件路径,绝对路径或相对于ClassPath路径
	 * @param readOnly      是否只读模式打开,true:是(不可编辑),false:否(可编辑)
	 * @return {@link Workbook}
	 * @since 3.1.1
	 */
	public static Workbook createBook(String excelFilePath, boolean readOnly) {
		return createBook(FileUtil.file(excelFilePath), null, readOnly);
	}

	/**
	 * 创建或加载工作簿(读写模式)
	 *
	 * @param excelFile Excel文件
	 * @return {@link Workbook}
	 */
	public static Workbook createBook(File excelFile) {
		return createBook(excelFile, false);
	}


	/**
	 * 创建或加载工作簿
	 *
	 * @param excelFile Excel文件
	 * @param readOnly  是否只读模式打开,true:是(不可编辑),false:否(可编辑)
	 * @return {@link Workbook}
	 */
	public static Workbook createBook(File excelFile, boolean readOnly) {
		return createBook(excelFile, null, readOnly);
	}

	/**
	 * 创建工作簿,用于Excel写出(读写模式)
	 *
	 * 
	 * 1. excelFile为null时直接返回一个空的工作簿,默认xlsx格式
	 * 2. 文件已存在则通过流的方式读取到这个工作簿
	 * 3. 文件不存在则检查传入文件路径是否以xlsx为扩展名,是则创建xlsx工作簿,否则创建xls工作簿
	 * 
* * @param excelFile Excel文件 * @return {@link Workbook} * @since 4.5.18 */ public static Workbook createBookForWriter(File excelFile) { if (null == excelFile) { return createBook(true); } if (excelFile.exists()) { return createBook(FileUtil.getInputStream(excelFile)); } return createBook(StrUtil.endWithIgnoreCase(excelFile.getName(), ".xlsx")); } /** * 创建或加载工作簿(读写模式) * * @param excelFile Excel文件 * @param password Excel工作簿密码,如果无密码传{@code null} * @return {@link Workbook} */ public static Workbook createBook(File excelFile, String password) { return createBook(excelFile, password, false); } /** * 创建或加载工作簿 * * @param excelFile Excel文件 * @param password Excel工作簿密码,如果无密码传{@code null} * @param readOnly 是否只读模式打开,true:是(不可编辑),false:否(可编辑) * @return {@link Workbook} * @since 5.7.23 */ public static Workbook createBook(File excelFile, String password, boolean readOnly) { try { return WorkbookFactory.create(excelFile, password, readOnly); } catch (Exception e) { throw new POIException(e); } } /** * 创建或加载工作簿(只读模式) * * @param in Excel输入流 * @return {@link Workbook} */ public static Workbook createBook(InputStream in) { return createBook(in, null); } /** * 创建或加载工作簿(只读模式) * * @param in Excel输入流,使用完毕自动关闭流 * @param password 密码 * @return {@link Workbook} * @since 4.0.3 */ public static Workbook createBook(InputStream in, String password) { try { return WorkbookFactory.create(IoUtil.toMarkSupportStream(in), password); } catch (Exception e) { throw new POIException(e); } finally { IoUtil.close(in); } } /** * 创建新的空白Excel工作簿 * * @param isXlsx 是否为xlsx格式的Excel * @return {@link Workbook} * @since 4.1.0 */ public static Workbook createBook(boolean isXlsx) { try { return WorkbookFactory.create(isXlsx); } catch (IOException e) { throw new IORuntimeException(e); } } /** * 创建或加载SXSSFWorkbook工作簿(读写模式) * * @param excelFilePath Excel文件路径,绝对路径或相对于ClassPath路径 * @return {@link SXSSFWorkbook} * @since 4.1.13 */ public static SXSSFWorkbook createSXSSFBook(String excelFilePath) { return createSXSSFBook(excelFilePath, false); } /** * 创建或加载SXSSFWorkbook工作簿 * * @param excelFilePath Excel文件路径,绝对路径或相对于ClassPath路径 * @param readOnly 是否只读模式打开,true:是(不可编辑),false:否(可编辑) * @return {@link SXSSFWorkbook} * @since 5.7.23 */ public static SXSSFWorkbook createSXSSFBook(String excelFilePath, boolean readOnly) { return createSXSSFBook(FileUtil.file(excelFilePath), null, readOnly); } /** * 创建或加载SXSSFWorkbook工作簿(读写模式) * * @param excelFile Excel文件 * @return {@link SXSSFWorkbook} * @since 4.1.13 */ public static SXSSFWorkbook createSXSSFBook(File excelFile) { return createSXSSFBook(excelFile, false); } /** * 创建或加载SXSSFWorkbook工作簿 * * @param excelFile Excel文件 * @param readOnly 是否只读模式打开,true:是(不可编辑),false:否(可编辑) * @return {@link SXSSFWorkbook} * @since 5.7.23 */ public static SXSSFWorkbook createSXSSFBook(File excelFile, boolean readOnly) { return createSXSSFBook(excelFile, null, readOnly); } /** * 创建或加载SXSSFWorkbook工作簿(读写模式) * * @param excelFile Excel文件 * @param password Excel工作簿密码,如果无密码传{@code null} * @return {@link SXSSFWorkbook} * @since 4.1.13 */ public static SXSSFWorkbook createSXSSFBook(File excelFile, String password) { return createSXSSFBook(excelFile, password, false); } /** * 创建或加载{@link SXSSFWorkbook}工作簿 * * @param excelFile Excel文件 * @param password Excel工作簿密码,如果无密码传{@code null} * @param readOnly 是否只读模式打开,true:是(不可编辑),false:否(可编辑) * @return {@link SXSSFWorkbook} * @since 5.7.23 */ public static SXSSFWorkbook createSXSSFBook(File excelFile, String password, boolean readOnly) { return toSXSSFBook(createBook(excelFile, password, readOnly)); } /** * 创建或加载{@link SXSSFWorkbook}工作簿(只读模式) * * @param in Excel输入流 * @return {@link SXSSFWorkbook} * @since 5.7.1 */ public static SXSSFWorkbook createSXSSFBook(InputStream in) { return createSXSSFBook(in, null); } /** * 创建或加载{@link SXSSFWorkbook}工作簿(只读模式) * * @param in Excel输入流 * @param password 密码 * @return {@link SXSSFWorkbook} * @since 4.1.13 */ public static SXSSFWorkbook createSXSSFBook(InputStream in, String password) { return toSXSSFBook(createBook(in, password)); } /** * 创建空的{@link SXSSFWorkbook},用于大批量数据写出 * * @return {@link SXSSFWorkbook} * @since 4.1.13 */ public static SXSSFWorkbook createSXSSFBook() { return new SXSSFWorkbook(); } /** * 创建空的{@link SXSSFWorkbook},用于大批量数据写出 * * @param rowAccessWindowSize 在内存中的行数,-1表示不限制,此时需要手动刷出 * @return {@link SXSSFWorkbook} * @since 4.1.13 */ public static SXSSFWorkbook createSXSSFBook(int rowAccessWindowSize) { return new SXSSFWorkbook(rowAccessWindowSize); } /** * 创建空的{@link SXSSFWorkbook},用于大批量数据写出 * * @param rowAccessWindowSize 在内存中的行数,-1表示不限制,此时需要手动刷出 * @param compressTmpFiles 是否使用Gzip压缩临时文件 * @param useSharedStringsTable 是否使用共享字符串表,一般大量重复字符串时开启可节省内存 * @return {@link SXSSFWorkbook} * @since 5.7.23 */ public static SXSSFWorkbook createSXSSFBook(int rowAccessWindowSize, boolean compressTmpFiles, boolean useSharedStringsTable) { return new SXSSFWorkbook(null, rowAccessWindowSize, compressTmpFiles, useSharedStringsTable); } /** * 将Excel Workbook刷出到输出流,不关闭流 * * @param book {@link Workbook} * @param out 输出流 * @throws IORuntimeException IO异常 * @since 3.2.0 */ public static void writeBook(Workbook book, OutputStream out) throws IORuntimeException { try { book.write(out); } catch (IOException e) { throw new IORuntimeException(e); } } /** * 获取或者创建sheet表
* 如果sheet表在Workbook中已经存在,则获取之,否则创建之 * * @param book 工作簿{@link Workbook} * @param sheetName 工作表名 * @return 工作表{@link Sheet} * @since 4.0.2 */ public static Sheet getOrCreateSheet(Workbook book, String sheetName) { if (null == book) { return null; } sheetName = StrUtil.isBlank(sheetName) ? "sheet1" : sheetName; Sheet sheet = book.getSheet(sheetName); if (null == sheet) { sheet = book.createSheet(sheetName); } return sheet; } /** * 获取或者创建sheet表
* 自定义需要读取或写出的Sheet,如果给定的sheet不存在,创建之(命名为默认)
* 在读取中,此方法用于切换读取的sheet,在写出时,此方法用于新建或者切换sheet * * @param book 工作簿{@link Workbook} * @param sheetIndex 工作表序号 * @return 工作表{@link Sheet} * @since 5.2.1 */ public static Sheet getOrCreateSheet(Workbook book, int sheetIndex) { Sheet sheet = null; try { sheet = book.getSheetAt(sheetIndex); } catch (IllegalArgumentException ignore) { //ignore } if (null == sheet) { sheet = book.createSheet(); } return sheet; } /** * sheet是否为空 * * @param sheet {@link Sheet} * @return sheet是否为空 * @since 4.0.1 */ public static boolean isEmpty(Sheet sheet) { return null == sheet || (sheet.getLastRowNum() == 0 && sheet.getPhysicalNumberOfRows() == 0); } // -------------------------------------------------------------------------------------------------------- Private method start /** * 将普通工作簿转换为SXSSFWorkbook * * @param book 工作簿 * @return SXSSFWorkbook * @since 4.1.13 */ private static SXSSFWorkbook toSXSSFBook(Workbook book) { if (book instanceof SXSSFWorkbook) { return (SXSSFWorkbook) book; } if (book instanceof XSSFWorkbook) { return new SXSSFWorkbook((XSSFWorkbook) book); } throw new POIException("The input is not a [xlsx] format."); } // -------------------------------------------------------------------------------------------------------- Private method end }




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