java 设置excel边框线 java设置excel边框颜色

2024-03-01 05:35| 来源: 网络整理| 查看: 265

java 设置excel边框线 java设置excel边框颜色转载

bigrobin 2023-08-24 01:54:27

文章标签 java 设置excel边框线 java 开发语言后端 apache 文章分类 Java 后端开发

pom.xml依赖 org.apache.poi poi RELEASE org.apache.poi poi-ooxml RELEASE org.apache.httpcomponents httpcore 4.4.9 读取package com.example.test; import org.apache.http.entity.ContentType; import org.apache.poi.hssf.usermodel.HSSFWorkbook; import org.apache.poi.ss.usermodel.*; import org.apache.poi.xssf.usermodel.XSSFWorkbook; import org.springframework.mock.web.MockMultipartFile; import org.springframework.web.multipart.MultipartFile; import java.io.File; import java.io.FileInputStream; import java.io.IOException; import java.io.InputStream; public class ExcelReadTest { /** *根据文件路径得到MultipartFile * @param url * @return * @throws IOException */ public MultipartFile fileToMultipartFile(String url) throws IOException { File file = new File(url); FileInputStream fileInputStream = new FileInputStream(file); MultipartFile multipartFile = new MockMultipartFile(file.getName(), file.getName(), ContentType.APPLICATION_OCTET_STREAM.toString(), fileInputStream); return multipartFile; } /** * 将文件转化为可操作的类型 * @param multipartFile * @return * @throws IOException */ public Workbook getWorkFile(MultipartFile multipartFile) throws IOException { Workbook workbook = null; //获取文件的类型 String type = multipartFile.getOriginalFilename().substring(multipartFile.getOriginalFilename().lastIndexOf(".")+1); //获取文件字节输入流 InputStream in = multipartFile.getInputStream(); if ("xls".equals(type)) { workbook = new HSSFWorkbook(in); } else if ("xlsx".equals(type)) { workbook = new XSSFWorkbook(in); } return workbook; } /** * 遍历读取excel的每一个单元格 * @param workbook */ public void readFile(Workbook workbook) { //遍历sheet for (int numSheet = 0; numSheet < workbook.getNumberOfSheets(); numSheet++) { //得到单个sheet Sheet sheet = workbook.getSheetAt(numSheet); if (sheet == null) { continue; } //得到单个sheet的行数 int rowCount = sheet.getLastRowNum(); //从第二行开始，遍历Sheet的每一行(第一行一般是标题，所以不遍历) for (int rowNum = 1; rowNum

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