Java EE中用POI将结果导出为Excel报表文件的实现

Java

在Java EE中，可以使用Apache POI库来将结果导出为excel报表文件。下面是一个简单的示例代码：Javaimport Java.io.FileOutputStream;import org.apache.poi.ss.usermodel.Cell;import org.apache.poi.ss.usermodel.CellType;import org.apache.poi.xssf.usermodel.XSSFWorkbook;public class excelExportExample { public static void mAIn(String[] args) throws Exception { // 创建一个工作簿对象 XSSFWorkbook workbook = new XSSFWorkbook(); // 创建一个工作表对象 XSSFCellStyle style = workbook.createCellStyle(); XSSFDataFormat format = workbook.createDataFormat(); XSSFDataFormat format2 = workbook.createDataFormat(); XSSFDataFormat format3 = workbook.createDataFormat(); // 创建一个表头行 XSSFCellStyle headerStyle = workbook.createCellStyle(); XSSFDataFormat headerFormat = workbook.createDataFormat(); XSSFDataFormat headerFormat2 = workbook.createDataFormat(); XSSFDataFormat headerFormat3 = workbook.createDataFormat(); // 创建表格数据 XSSFRow headerRow = workbook.createRow(0); XSSFCellStyle normalStyle = workbook.createCellStyle(); XSSFDataFormat normalFormat = workbook.createDataFormat(); XSSFDataFormat normalFormat2 = workbook.createDataFormat(); XSSFDataFormat normalFormat3 = workbook.createDataFormat(); XSSFRow normalRow1 = workbook.createRow(1); XSSFRow normalRow2 = workbook.createRow(2); XSSFRow normalRow3 = workbook.createRow(3); // 设置表头样式和格式 headerRow.createCell(0, normalStyle, "Name"); headerRow.createCell(1, normalStyle, "Age"); headerRow.createCell(2, normalStyle, "Gender"); headerRow.createCell(3, normalStyle, "EmAIl"); headerRow.createCell(0, normalFormat, "John"); headerRow.createCell(1, normalFormat, "25"); headerRow.createCell(2, normalFormat, "Male"); headerRow.createCell(3, normalFormat, "john@example.com"); // 设置数据样式和格式 for (int i = 1; i