com.jchanghong.poi.excel.WorkbookUtil Maven / Gradle / Ivy
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package com.jchanghong.poi.excel;
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
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 com.jchanghong.core.io.FileUtil;
import com.jchanghong.core.io.IORuntimeException;
import com.jchanghong.core.io.IoUtil;
import com.jchanghong.core.util.StrUtil;
import com.jchanghong.poi.exceptions.POIException;
/**
* 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
*
* @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(FileUtil.file(excelFilePath), null);
}
/**
* 创建或加载工作簿
*
* @param excelFile Excel文件
* @return {@link Workbook}
*/
public static Workbook createBook(File excelFile) {
return createBook(excelFile, null);
}
/**
* 创建工作簿，用于Excel写出
*
*
* 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), true);
}
return createBook(StrUtil.endWithIgnoreCase(excelFile.getName(), ".xlsx"));
}
/**
* 创建或加载工作簿，只读模式
*
* @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) {
try {
return WorkbookFactory.create(excelFile, password);
} catch (Exception e) {
throw new POIException(e);
}
}
/**
* 创建或加载工作簿
*
* @param in Excel输入流
* @param closeAfterRead 读取结束是否关闭流
* @return {@link Workbook}
*/
public static Workbook createBook(InputStream in, boolean closeAfterRead) {
return createBook(in, null, closeAfterRead);
}
/**
* 创建或加载工作簿
*
* @param in Excel输入流
* @param password 密码
* @param closeAfterRead 读取结束是否关闭流
* @return {@link Workbook}
* @since 4.0.3
*/
public static Workbook createBook(InputStream in, String password, boolean closeAfterRead) {
try {
return WorkbookFactory.create(IoUtil.toMarkSupportStream(in), password);
} catch (Exception e) {
throw new POIException(e);
} finally {
if (closeAfterRead) {
IoUtil.close(in);
}
}
}
/**
* 根据文件类型创建新的工作簿，文件路径
*
* @param isXlsx 是否为xlsx格式的Excel
* @return {@link Workbook}
* @since 4.1.0
*/
public static Workbook createBook(boolean isXlsx) {
Workbook workbook;
if (isXlsx) {
workbook = new XSSFWorkbook();
} else {
workbook = new org.apache.poi.hssf.usermodel.HSSFWorkbook();
}
return workbook;
}
/**
* 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
* @return {@link SXSSFWorkbook}
* @since 4.1.13
*/
public static SXSSFWorkbook createSXSSFBook(String excelFilePath) {
return createSXSSFBook(FileUtil.file(excelFilePath), null);
}
/**
* 创建或加载SXSSFWorkbook工作簿
*
* @param excelFile Excel文件
* @return {@link SXSSFWorkbook}
* @since 4.1.13
*/
public static SXSSFWorkbook createSXSSFBook(File excelFile) {
return createSXSSFBook(excelFile, null);
}
/**
* 创建或加载SXSSFWorkbook工作簿，只读模式
*
* @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 toSXSSFBook(createBook(excelFile, password));
}
/**
* 创建或加载SXSSFWorkbook工作簿
*
* @param in Excel输入流
* @param closeAfterRead 读取结束是否关闭流
* @return {@link SXSSFWorkbook}
* @since 4.1.13
*/
public static SXSSFWorkbook createSXSSFBook(InputStream in, boolean closeAfterRead) {
return createSXSSFBook(in, null, closeAfterRead);
}
/**
* 创建或加载SXSSFWorkbook工作簿
*
* @param in Excel输入流
* @param password 密码
* @param closeAfterRead 读取结束是否关闭流
* @return {@link SXSSFWorkbook}
* @since 4.1.13
*/
public static SXSSFWorkbook createSXSSFBook(InputStream in, String password, boolean closeAfterRead) {
return toSXSSFBook(createBook(in, password, closeAfterRead));
}
/**
* 创建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SXSSFWorkbook，用于大批量数据写出
*
* @param rowAccessWindowSize 在内存中的行数
* @return {@link Workbook}
* @since 4.1.13
*/
public static SXSSFWorkbook createSXSSFBook(int rowAccessWindowSize) {
return new SXSSFWorkbook(rowAccessWindowSize);
}
/**
* 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
}