Java导出数据行写入到Excel表格：基于Apache POI

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Java导出数据行写入到Excel表格：基于Apache POI

import java.io.File;
import java.io.FileOutputStream;

import org.apache.poi.hssf.usermodel.HSSFRow;
import org.apache.poi.hssf.usermodel.HSSFSheet;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;

public class ExcelUtil {
	public static void main(String[] args) throws Exception {
		HSSFWorkbook mWorkbook = new HSSFWorkbook();

		HSSFSheet mSheet = mWorkbook.createSheet("Student");

		// 创建Excel标题行，第一行。
		HSSFRow headRow = mSheet.createRow(0);
		headRow.createCell(0).setCellValue("id");
		headRow.createCell(1).setCellValue("name");
		headRow.createCell(2).setCellValue("gender");
		headRow.createCell(3).setCellValue("age");

		// 往Excel表中写入3行测试数据。
		createCell(1, "zhang", "男", 18, mSheet);
		createCell(2, "phil", "男", 19, mSheet);
		createCell(3, "fly", "男", 20, mSheet);

		File xlsFile = new File("f.xls");
		mWorkbook.write(xlsFile);// 或者以流的形式写入文件 mWorkbook.write(new FileOutputStream(xlsFile));
		mWorkbook.close();
	}

	// 创建Excel的一行数据。
	private static void createCell(int id, String name, String gender, int age, HSSFSheet sheet) {
		HSSFRow dataRow = sheet.createRow(sheet.getLastRowNum() + 1);

		dataRow.createCell(0).setCellValue(id);
		dataRow.createCell(1).setCellValue(name);
		dataRow.createCell(2).setCellValue(gender);
		dataRow.createCell(3).setCellValue(age);
	}
}

最终生成的Excel表格数据如图所示：