IntelliJ IDEA 将maven项目打war包【转】

好的，我可以为您提供Java代码来生成1万条6个特征和一个结果的数据，并且数据浮动在正负0.05之间，并将数据写入XLSX文件中。以下是代码示例： ```java import java.io.File; import java.io.FileOutputStream; import java.math.BigDecimal; import java.util.Random; import org.apache.poi.ss.usermodel.Cell; import org.apache.poi.ss.usermodel.Row; import org.apache.poi.ss.usermodel.Sheet; import org.apache.poi.xssf.usermodel.XSSFWorkbook; public class GenerateData { private static final int ROWS = 10000; // 数据行数 private static final int FEATURES = 6; // 特征数 private static final String[] FEATURE_NAMES = {"feature1", "feature2", "feature3", "feature4", "feature5", "feature6"}; // 特征名称 private static final String RESULT_NAME = "result"; // 结果名称 private static final double FLUCTUATION = 0.05; // 浮动范围 public static void main(String[] args) { XSSFWorkbook workbook = new XSSFWorkbook(); Sheet sheet = workbook.createSheet("data"); // 创建表头 Row headerRow = sheet.createRow(0); for (int i = 0; i < FEATURES; i++) { Cell cell = headerRow.createCell(i); cell.setCellValue(FEATURE_NAMES[i]); } Cell resultCell = headerRow.createCell(FEATURES); resultCell.setCellValue(RESULT_NAME); // 生成数据 Random random = new Random(); for (int i = 1; i <= ROWS; i++) { Row row = sheet.createRow(i); double[] features = new double[FEATURES]; for (int j = 0; j < FEATURES; j++) { double value = random.nextDouble() * FLUCTUATION * 2 - FLUCTUATION; // 生成浮动值 features[j] = new BigDecimal(value).setScale(2, BigDecimal.ROUND_HALF_UP).doubleValue(); // 保留两位小数 Cell cell = row.createCell(j); cell.setCellValue(features[j]); } double result = random.nextDouble() * FLUCTUATION * 2 - FLUCTUATION; Cell resultCellData = row.createCell(FEATURES); resultCellData.setCellValue(new BigDecimal(result).setScale(2, BigDecimal.ROUND_HALF_UP).doubleValue()); // 保留两位小数 } // 写入XLSX文件 try { FileOutputStream outputStream = new FileOutputStream(new File("data.xlsx")); workbook.write(outputStream); workbook.close(); System.out.println("数据已生成并写入文件！"); } catch (Exception e) { e.printStackTrace(); } } } ``` 在运行该代码后，您将在当前目录下找到名为" data.xlsx "的文件，其中包含1万行6个特征和一个结果的数据，数据浮动在正负0.05之间。