更新

严智鑫

2024-03-18 331e7fc1b8f332ccecb8e9af59a826d6ae80ba10

 springboot-vue3/src/main/java/com/example/springboot/service/HomeService.java

@@ -1,8 +1,21 @@
package com.example.springboot.service;

import java.io.File;
import java.io.FileInputStream;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import org.apache.poi.ss.usermodel.Cell;
import org.apache.poi.ss.usermodel.CellType;
import org.apache.poi.ss.usermodel.CellValue;
import org.apache.poi.ss.usermodel.FormulaEvaluator;
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;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

@@ -25,7 +38,7 @@
    // 匹配玻璃 宽，高，线路
    public List<GlassInfo> NormalGlassInfo(double width, double height, String line) {
        //
        List<GlassInfo> Results=new ArrayList<GlassInfo>();
        List<GlassInfo> Results = new ArrayList<GlassInfo>();
        // 获取匹配设置
        MeasureSetting MeasureSetting = MeasureSettingMapper.SelectMeasureSetting(line);
        if (height > 0 && width > 0 && MeasureSetting != null) {
@@ -47,4 +60,65 @@
        }
        return Results;
    }

    //Execl表格 传入文件路径  
    public List ReadExecl(String filename) {
        try {
             // 创建文件对象
        File file = new File(filename);
        // 创建文件输入流对象
        FileInputStream inputStream = new FileInputStream(file);
        // 创建工作簿对象
        Workbook workbook = WorkbookFactory.create(inputStream);
        // 获取第一个工作表对象
        Sheet sheet = workbook.getSheetAt(0);
        // 创建一个实体类集合，用于存储Excel数据
        
        List Results=new ArrayList();  
        int i=0;  
        // 遍历行
        for (Row row : sheet) {
            // 遍历单元格
            List ResultRow=new ArrayList(); 
            //System.out.println();
            for (Cell cell : row) {
                String LastCellvalue="";
                // 判断单元格类型是否为公式类型
                if (cell.getCellType() == CellType.FORMULA) {
                    // 使用公式计算器计算单元格的值
                    FormulaEvaluator evaluator = workbook.getCreationHelper().createFormulaEvaluator();
                    CellValue cellValue = evaluator.evaluate(cell);
                    // 计算后的单元格值
                    LastCellvalue=cellValue.getNumberValue()+"";
                }else if(cell.getCellType() == CellType.NUMERIC){
                    double value = cell.getNumericCellValue();
                    if (value%1==0) {
                        LastCellvalue=Math.round(value)+"";
                    }else{
                        LastCellvalue=value+"";
                    }
                } else {
                    // 单元格值
                    LastCellvalue=cell.toString(); 
                }
                ResultRow.add(LastCellvalue);
                //System.out.print(LastCellvalue+"  ");
            }
            Results.add(ResultRow);
            i++;
        }
        System.out.println(i);
        // 关闭工作簿和输入流对象
        workbook.close();
        inputStream.close();
        return Results;
        } catch (Exception e) {
            // TODO: handle exception
            System.out.println("异常");
            return new ArrayList();
        }
       
    }


}