czg_team/cashier-admin-java
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台桌数据导出修改

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GYJ
2024-08-17 11:29:59 +08:00
parent 0c5192e86e
commit 8e0f237e2e
2 changed files with 102 additions and 18 deletions
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52
eladmin-common/src/main/java/cn/ysk/cashier/utils/FileUtil.java
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@@ -23,9 +23,11 @@ import cn.hutool.poi.excel.ExcelUtil;
import cn.hutool.poi.excel.ExcelWriter;
import cn.ysk.cashier.exception.BadRequestException;
import org.apache.poi.ss.usermodel.*;
import org.apache.poi.ss.util.CellRangeAddress;
import org.apache.poi.util.IOUtils;
import org.apache.poi.xssf.streaming.SXSSFSheet;
import org.apache.poi.xssf.usermodel.XSSFSheet;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.web.multipart.MultipartFile;
@@ -37,10 +39,7 @@ import java.io.*;
import java.security.MessageDigest;
import java.text.DecimalFormat;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;
import java.util.Map;
import java.util.*;
import java.util.concurrent.ConcurrentLinkedQueue;
/**
@@ -238,6 +237,51 @@ public class FileUtil extends cn.hutool.core.io.FileUtil {
IoUtil.close(out);
}
public static void downloadAndMergeExcel(List<Map<String, Object>> list, List<List<Integer>> mergeData, List<String> keyList, HttpServletResponse response) throws IOException {
String tempPath = SYS_TEM_DIR + IdUtil.fastSimpleUUID() + ".xlsx";
// 创建工作簿
Workbook workbook = new XSSFWorkbook();
// 创建工作表
Sheet sheet = workbook.createSheet("Sheet1");
// 合并单元格，从第 0 行第 0 列到第 0 行第 2 列
// sheet.addMergedRegion(new CellRangeAddress(0, 0, 0, 2));
for (List<Integer> mergeDatum : mergeData) {
sheet.addMergedRegion(new CellRangeAddress(mergeDatum.get(0), mergeDatum.get(1), mergeDatum.get(2), mergeDatum.get(3)));
}
Row row0 = sheet.createRow(0);
for (int i = 0; i < keyList.size(); i++) {
Cell cell = row0.createCell(i);
cell.setCellValue(keyList.get(i));
}
for (int i = 0; i < list.size(); i++) {
Map<String, Object> map = list.get(i);
Row row = sheet.createRow(i + 1);
for (int j = 0; j < keyList.size(); j++) {
Cell cell = row.createCell(j);
cell.setCellValue(map.get(keyList.get(j)) == null ? "" : map.get(keyList.get(j)).toString());
}
}
// response为HttpServletResponse对象
response.setContentType("application/vnd.openxmlformats-officedocument.spreadsheetml.sheet;charset=utf-8");
response.setHeader("Content-Disposition", "attachment;filename=file.xlsx");
try (FileOutputStream outputStream = new FileOutputStream(tempPath);
ServletOutputStream out = response.getOutputStream()) {
workbook.write(outputStream);
workbook.write(out);
} catch (IOException e) {
// 更详细的错误处理
e.printStackTrace();
// 可以考虑返回一个错误响应给客户端
}
}
/**
* 输入标题到excel
*