读取多个EXCEL文件

多个EXCEL文件 读取：

import java.io.BufferedWriter;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStreamWriter;
import java.nio.charset.Charset;

import org.apache.poi.EncryptedDocumentException;
import org.apache.poi.openxml4j.exceptions.InvalidFormatException;
import org.apache.poi.ss.usermodel.Cell;
import org.apache.poi.ss.usermodel.CellType;
import org.apache.poi.ss.usermodel.Row;
import org.apache.poi.ss.usermodel.Sheet;
import org.apache.poi.ss.usermodel.Workbook;
import org.apache.poi.ss.usermodel.WorkbookFactory;

public class ExcelReader {
	private File source;
	private int startRowIndex;
	private int startColIndex;
	private final String SEPARATE = "02";

	public ExcelReader(String path, int startRowIndex, int startColIndex) {
		this.source = new File(path);
		this.startColIndex = startColIndex;
		this.startRowIndex = startRowIndex;
	}

	public void readAndWrite(String dstPath) throws Exception {
		BufferedWriter bw = new BufferedWriter(
				new OutputStreamWriter(new FileOutputStream(dstPath), Charset.forName("utf-8")));
		read(this.source, bw);
		bw.close();
	}

	@SuppressWarnings("deprecation")
	private void read(File file, BufferedWriter bw) throws Exception {
		if (file.isDirectory()) {
			File[] files = file.listFiles();
			for (File f : files) {
				read(f, bw);
			}
		} else {
			System.out.println(file.getPath());
			Workbook wb = WorkbookFactory.create(new FileInputStream(file));
			Sheet sheet = wb.getSheetAt(0);

			int rowIndex = this.startRowIndex;
			Row row;
			Cell cell;
			String value = "";
			StringBuffer line;
			CellType celltype;
			boolean flag = false;
			while (true) {
				row = sheet.getRow(rowIndex);
				if (row != null) {
					line = new StringBuffer();
					for (int i = 0; i < 26; i++) {
						cell = row.getCell(i);
						if (cell != null) {
							celltype = cell.getCellTypeEnum();
							if (celltype == CellType.NUMERIC) {
								value = Double.toString(cell.getNumericCellValue());
							} else if (celltype == CellType.STRING) {
								value = cell.getStringCellValue();
								if (value.equals("c5a9f751b36e0a111d0e4b819278d7a5f1")) {
									@SuppressWarnings("unused")
									int a = 0;
								}
							} else {
								value = "";
							}
						} else {
							value = "";
						}

						if (i == 0 && value.trim().equals("")) {
							flag = true;
							break;
						}
						value = value.replace("rn", " ").replace("nr", " ").replace("r", " ").replace("n", " ")
								.replace(SEPARATE, " ");
						line.append(value);
						if (i != 25) {
							line.append(SEPARATE);
						}
					}
					if (line.toString().split(SEPARATE).length == 26) {
						bw.write(line.toString());
						bw.newLine();
					} else {
						throw new Exception("size:" + line.toString().split(SEPARATE).length + ", " + line.toString());
					}

					rowIndex++;
				} else {
					break;
				}
				if (flag) {
					break;
				}
			}
			wb.close();
		}
	}
}

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