springBoot整合POI导入Excel

在网上也看了好多POI的帖子最后总结一下，选了个用的顺手的,首先基于springBoot，在pom.xml中添加以下依赖

<dependency>
   <groupId>org.apache.poi</groupId>
   <artifactId>poi</artifactId>
   <version>3.10-FINAL</version>
</dependency>
<dependency>
   <groupId>org.apache.poi</groupId>
   <artifactId>poi-ooxml</artifactId>
   <version>3.10-FINAL</version>
</dependency>
<dependency>
   <groupId>org.apache.poi</groupId>
   <artifactId>poi-ooxml-schemas</artifactId>
   <version>3.10-FINAL</version>
</dependency>

Controller层，直接接收文件

import com.alibaba.fastjson.JSON;

import org.apache.poi.hssf.usermodel.HSSFWorkbook;

import org.apache.poi.poifs.filesystem.POIFSFileSystem;
import org.apache.poi.ss.usermodel.Row;
import org.apache.poi.ss.usermodel.Sheet;
import org.apache.poi.ss.usermodel.Workbook;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.*;
import org.springframework.web.multipart.MultipartFile;

@RequestMapping("/demo")

public class DemoController{

@Autowired

private DemoService demoService;

@RequestMapping(value = "/addBatch", method = RequestMethod.POST)

public String addStudentBatch(@RequestParam("file") MultipartFile file){

    try{
        List<Demo> demoList = new ArrayList<Demo>();

        Workbook book = null;
        //判断是xls还是xlsx

        try {
            book = new XSSFWorkbook(studentsFile.getInputStream());
        } catch (Exception ex) {
            book = new HSSFWorkbook(new POIFSFileSystem(studentsFile.getInputStream()));
        }

        //获取一共有多少sheet,遍历
        int numberOfSheets = book.getNumberOfSheets();
        for (int i=0; i<numberOfSheets; i++) {
            Sheet sheet = book.getSheetAt(i);
            //获取sheet中有多少行，遍历每一行
            int physicalNumberOfRows = sheet.getPhysicalNumberOfRows();
            for (int j=0;j<physicalNumberOfRows;j++){
                if (j == 0) {
                    continue;//标题行
                }
Demo demo = new Demo();
                Row row = sheet.getRow(j);//获得当前行数据
                demo .setName(row.getCell(0).getStringCellValue()); //姓名
                String sex = row.getCell(1).getStringCellValue();
                if("男".equals(sex)){
                    demo .setSex(1); //性别
                }else if("女".equals(sex)){
                    demo .setSex(0); //性别
                }
                demo .setStudyYear((long) row.getCell(2).getNumericCellValue());
                demoList .add(demo );
            }
        }
        int num = bmStudentService.addStudentBatch(studentList);
        if(num>0){
            r.setResult(num);
            r.setStatus("ok");
        }else{
            r.setResult(0);
            r.setStatus("error");
        }
    }catch (Exception e){
        r.setResult(e.getClass().getName() + ":" + e.getMessage());
        r.setStatus("error");
        e.printStackTrace();
    }
    return JSON.toJSONString(r);

}

JsonResult是自己封装的结果类；剩下的就是传到服务层自己去实现业务就可以了

springBoot整合POI导入Excel

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