poi使用别名给单元格设值

最新推荐文章于 2025-02-28 19:41:57 发布

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最新推荐文章于 2025-02-28 19:41:57 发布

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分类专栏： poi

本文链接：https://blog.youkuaiyun.com/qzqanzc/article/details/79697715

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本文介绍如何利用Apache POI库的别名功能，高效地为Excel单元格设置值，提升Java操作Excel的便捷性。

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代码块

package com.yunlu.mimas.sasac.utils;

import org.apache.poi.hssf.usermodel.HSSFWorkbook;
import org.apache.poi.hssf.util.CellReference;
import org.apache.poi.ss.usermodel.*;
import java.io.*;
import java.util.Map;

public class Excel2003Utils {


    protected HSSFWorkbook hssfWorkbook;

    private String fullPathName;

    public Excel2003Utils(String fullPathName) throws Exception {

        this.fullPathName = fullPathName;
        this.hssfWorkbook = new HSSFWorkbook(new FileInputStream(new File(fullPathName)));

    }

    private void setCellValueByAlias(String alias, String value) {

        Name name = hssfWorkbook.getName(alias);   //This is core code 

        if (name != null) {
            CellReference cellReference = new CellReference(name.getRefersToFormula());

            Sheet sheet = hssfWorkbook.getSheet(cellReference.getSheetName());
            Row row = sheet.getRow(cellReference.getRow());
            Cell cell = row.getCell(cellReference.getCol());
            cell.setCellValue(value);
        }
    }

    /**
     * 通过Map<String,String> 给excel 设值
     *
     * @param values
     * @param outputStream
     * @throws Exception
     */
    public void setValues(Map<String, String> values, OutputStream outputStream) throws Exception {

        for (String key : values.keySet()) {
            try {
                setCellValueByAlias(key, values.get(key));
            }catch (Exception e){
                 e.printStackTrace();
            }
        }
        hssfWorkbook.write(outputStream);
    }
}