List<String> ips1 = new ArrayList<>(); List<String> ips2 = new ArrayList<>(); File file1 = new File("C:\\Users\\Administrator\\Desktop\\20241224.xlsx"); File file2 = new File("C:\\Users\\Administrator\\Desktop\\ip.xlsx"); InputStream inputStream1 = new FileInputStream(file1); InputStream inputStream2 = new FileInputStream(file2); //===============1 Workbook wb1 = WorkbookFactory.create(inputStream1); Sheet sheet01 = wb1.getSheetAt(0); // 得到总行数 int rowNum01 = sheet01.getLastRowNum(); for (int i = 0; i <= rowNum01; i++) { Row row01 = sheet01.getRow(i); String ip = row01.getCell(6).getRichStringCellValue().toString().replace(" ", ""); ips1.add(ip); } //======================2 Workbook wb2 = WorkbookFactory.create(inputStream2); Sheet sheet02 = wb2.getSheetAt(0); // 得到总行数 int rowNum02 = sheet02.getLastRowNum(); for (int i = 0; i <= rowNum02; i++) { Row row02 = sheet02.getRow(i); String ip = row02.getCell(0).getRichStringCellValue().toString().replace(" ", ""); ips2.add(ip); } Workbook workBook = new XSSFWorkbook(); Sheet sheet = workBook.createSheet(); for (int i = 0; i < ips1.size(); i++) { Row row = sheet.createRow(i); row.createCell(0).setCellValue(ips1.get(i)); if(ips2.contains(ips1.get(i))){ row.createCell(1).setCellValue("是"); }else { row.createCell(1).setCellValue("否"); } } try (FileOutputStream out = new FileOutputStream(new File("C:\\Users\\Administrator\\Desktop\\打标.xlsx"))){ workBook.write(out); }
标签:输出,file1,file2,int,excel,File,poi,new From: https://www.cnblogs.com/szc1998/p/18670367