# base64 转 MultipartFile_图片base64 转换multipartfile java

java中Base64编码转MultipartFile工具类

/**
 * @Description: TODO
 * @Author: CL
 * @CreateTime: 2023-11-07  15:13
 * @Version: 1.0
 */
@Service
@Slf4j
public class ExamConfirmServiceImpl extends ServiceImpl<ExamConfirmMapper, ExamConfirm> implements ExamConfirmService {
    @Autowired
    private ExamConfirmMapper examConfirmMapper;
    @Override
    public void insert(ExamConfirm examConfirm) {
        examConfirmMapper.insert(examConfirm);
    }

    @Override
    public void update(ExamConfirm examConfirm) {
        examConfirmMapper.updateById(examConfirm);
    }

    @Override
    public void del(String id) {
        examConfirmMapper.deleteById(id);
    }

    @Override
    public ExamConfirm getInfo(String id) {
        ExamConfirm examConfirm = examConfirmMapper.selectById(id);
        return examConfirm;
    }

    @Override
    public HashMap<String, Object> getList(Page page, QueryExam query) {
        QueryWrapper<ExamConfirm> qw = new QueryWrapper();
        if (StringUtils.isNotBlank(query.getFactoryId())) {
            qw.eq("factory_id", query.getFactoryId());
        }
        if (StringUtils.isNotBlank(query.getStatus())) {
            qw.eq("status", query.getStatus());
        }
        if (StringUtils.isNotBlank(query.getExamTitle())) {
            qw.like("exam_title", query.getExamTitle());
        }
        if (StringUtils.isNotBlank(query.getWorkerId())) {
            qw.like("worker_id", query.getWorkerId());
        }
        qw.orderByDesc("create_time");
        IPage iPage = this.baseMapper.selectPage(page, qw);
        List<Factory> list = iPage.getRecords();
        HashMap<String, Object> pageMap = new HashMap<>();
        HashMap<String, Object> result = new HashMap<>();
        pageMap.put("totalRows", iPage.getTotal());
        pageMap.put("pageSize", iPage.getSize());
        pageMap.put("current", iPage.getCurrent());
        result.put("pagination", pageMap);
        result.put("data", list);
        return result;
    }
}

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测试

    public R convert(@RequestBody String base64) {
        MultipartFile file = BASE64DecodedMultipartFile.base64ToMultipart(base64);
        upload(file);
        }
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本文参考与：https://cloud.tencent.com/developer/article/2242674?from=15425