JAVA使用hutool poi工具读取Excel表格指定行列范围的数据

1.pom.xml依赖配置

    <dependencies>
        <!-- huTool工具箱 -->
        <dependency>
            <groupId>cn.hutool</groupId>
            <artifactId>hutool-all</artifactId>
            <version>5.7.9</version>
        </dependency>

        <!-- poi -->
        <dependency>
            <groupId>org.apache.poi</groupId>
            <artifactId>poi-ooxml</artifactId>
            <version>4.1.2</version>
        </dependency>
    </dependencies>

2.代码

package com.hdwang.exceltest;

import cn.hutool.json.JSONUtil;

/**
 * 单元格数据
 */
public class CellData {

    /**
     * 行号
     */
    private int rowIndex;

    /**
     * 列号
     */
    private int cellIndex;

    /**
     * 单元格数值
     */
    private Object value;

    public int getRowIndex() {
        return rowIndex;
    }

    public void setRowIndex(int rowIndex) {
        this.rowIndex = rowIndex;
    }

    public int getCellIndex() {
        return cellIndex;
    }

    public void setCellIndex(int cellIndex) {
        this.cellIndex = cellIndex;
    }

    public Object getValue() {
        return value;
    }

    public void setValue(Object value) {
        this.value = value;
    }

    @Override
    public String toString() {
        return JSONUtil.toJsonStr(this);
    }
}

package com.hdwang.exceltest;

import cn.hutool.poi.excel.ExcelReader;
import cn.hutool.poi.excel.ExcelUtil;
import cn.hutool.poi.excel.ExcelWriter;
import cn.hutool.poi.excel.cell.CellHandler;
import org.apache.poi.ss.usermodel.*;

import java.io.File;
import java.util.*;
import java.util.concurrent.atomic.AtomicInteger;

public class Main {
    public static void main(String[] args) {
        File templateFile = new File("C:\\Users\\hdwang\\Desktop\\test.xlsx");
        List<List<CellData>> rowDataList = readExcelData(templateFile, 2, Integer.MAX_VALUE, 1, Integer.MAX_VALUE);
        System.out.println(rowDataList);
    }

  

    /**
     * 读取表格数据
     *
     * @param templateFile   文件
     * @param startRowIndex  起始行号（从0开始）
     * @param endRowIndex    结束行号（从0开始）
     * @param startCellIndex 起始列号（从0开始）
     * @param endCellIndex   结束列号（从0开始）
     * @return 表格数据
     */
    private static List<List<CellData>> readExcelData(File templateFile, int startRowIndex, int endRowIndex, int startCellIndex, int endCellIndex) {
        ExcelReader excelReader = ExcelUtil.getReader(templateFile, 0);
        List<List<CellData>> rowDataList = new ArrayList<>();
        AtomicInteger rowIndex = new AtomicInteger(-1);
        excelReader.read(startRowIndex, endRowIndex, new CellHandler() {
            @Override
            public void handle(Cell cell, Object value) {
                if (cell == null) {
                    //无单元格跳过
                    return;
                }
                if (cell.getColumnIndex() < startCellIndex || cell.getColumnIndex() > endCellIndex) {
                    //列号不在范围内跳过
                    return;
                }

                //新行的数据
                if (cell.getRowIndex() != rowIndex.get()) {
                    rowDataList.add(new ArrayList<>());
                }
                rowIndex.set(cell.getRowIndex());
                //取出新行数据对象存储单元格数据
                List<CellData> cellDataList = rowDataList.get(rowDataList.size() - 1);
                CellData cellData = new CellData();
                cellData.setRowIndex(cell.getRowIndex());
                cellData.setCellIndex(cell.getColumnIndex());
                cellData.setValue(value);
                cellDataList.add(cellData);
            }
        });
        return rowDataList;
    }
}

3.表格

4.输出结果

[
    [
        {
            "cellIndex": 1,
            "rowIndex": 2,
            "value": "净资产"
        },
        {
            "cellIndex": 2,
            "rowIndex": 2,
            "value": 10000
        },
        {
            "cellIndex": 3,
            "rowIndex": 2,
            "value": " "
        },
        {
            "cellIndex": 4,
            "rowIndex": 2,
            "value": 1
        }
    ],
    [
        {
            "cellIndex": 1,
            "rowIndex": 3,
            "value": "市值"
        },
        {
            "cellIndex": 2,
            "rowIndex": 3,
            "value": 20000
        },
        {
            "cellIndex": 4,
            "rowIndex": 3,
            "value": 2
        }
    ],
    [
        {
            "cellIndex": 1,
            "rowIndex": 4,
            "value": "标题"
        }
    ],
    [
        {
            "cellIndex": 1,
            "rowIndex": 5,
            "value": "净利润"
        },
        {
            "cellIndex": 2,
            "rowIndex": 5,
            "value": 1000
        },
        {
            "cellIndex": 4,
            "rowIndex": 5,
            "value": 3
        }
    ]
]

标签：JAVA,rowIndex,Excel,hutool,value,cell,cellIndex,int,public
来源： https://www.cnblogs.com/hdwang/p/15774601.html