| 提交 | 用户 | 时间 | ||
| 1ac2bc | 1 | package cn.stylefeng.guns.sys.modular.rest.service; |
| 懒 | 2 | |
| 3 | import cn.hutool.core.codec.Base64; | |
| 4 | import cn.hutool.core.io.IoUtil; | |
| 5 | import cn.stylefeng.guns.base.auth.context.LoginContextHolder; | |
| 6 | import cn.stylefeng.guns.base.auth.model.LoginUser; | |
| 7 | import cn.stylefeng.guns.base.consts.ConstantsContext; | |
| 8 | import cn.stylefeng.guns.sys.core.constant.DefaultAvatar; | |
| 9 | import cn.stylefeng.guns.sys.core.exception.enums.BizExceptionEnum; | |
| 10 | import cn.stylefeng.guns.sys.modular.rest.entity.RestFileInfo; | |
| 11 | import cn.stylefeng.guns.sys.modular.rest.entity.RestUser; | |
| 12 | import cn.stylefeng.guns.sys.modular.rest.mapper.RestFileInfoMapper; | |
| 13 | import cn.stylefeng.roses.core.util.ToolUtil; | |
| 14 | import cn.stylefeng.roses.kernel.model.exception.ServiceException; | |
| 15 | import cn.stylefeng.roses.kernel.model.exception.enums.CoreExceptionEnum; | |
| 16 | import com.baomidou.mybatisplus.core.toolkit.IdWorker; | |
| 17 | import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl; | |
| 18 | import lombok.extern.slf4j.Slf4j; | |
| 19 | import org.springframework.stereotype.Service; | |
| 20 | import org.springframework.transaction.annotation.Transactional; | |
| 21 | import org.springframework.web.multipart.MultipartFile; | |
| 22 | ||
| 23 | import javax.annotation.Resource; | |
| 24 | import java.io.File; | |
| 25 | import java.io.FileInputStream; | |
| 26 | import java.io.FileNotFoundException; | |
| 27 | import java.math.BigDecimal; | |
| 28 | ||
| 29 | /** | |
| 30 | * <p> | |
| 31 | * 文件信息表 | |
| 32 | * 服务实现类 | |
| 33 | * </p> | |
| 34 | * | |
| 35 | * @author stylefeng | |
| 36 | * @since 2018-12-07 | |
| 37 | */ | |
| 38 | @Service | |
| 39 | @Slf4j | |
| 40 | public class RestFileInfoService extends ServiceImpl<RestFileInfoMapper, RestFileInfo> { | |
| 41 | ||
| 42 | @Resource | |
| 43 | private RestUserService restUserService; | |
| 44 | ||
| 45 | /** | |
| 46 | * 更新头像 | |
| 47 | * | |
| 48 | * @author fengshuonan | |
| 49 | * @Date 2018/11/10 4:10 PM | |
| 50 | */ | |
| 51 | @Transactional(rollbackFor = Exception.class) | |
| 52 | public void updateAvatar(String fileId) { | |
| 53 | LoginUser currentUser = LoginContextHolder.getContext().getUser(); | |
| 54 | if (currentUser == null) { | |
| 55 | throw new ServiceException(CoreExceptionEnum.NO_CURRENT_USER); | |
| 56 | } | |
| 57 | ||
| 58 | RestUser user = restUserService.getById(currentUser.getId()); | |
| 59 | ||
| 60 | //更新用户的头像 | |
| 61 | user.setAvatar(fileId); | |
| 62 | restUserService.updateById(user); | |
| 63 | } | |
| 64 | ||
| 65 | /** | |
| 66 | * 预览当前用户头像 | |
| 67 | * | |
| 68 | * @author fengshuonan | |
| 69 | * @Date 2019-05-04 17:04 | |
| 70 | */ | |
| 71 | public byte[] previewAvatar() { | |
| 72 | ||
| 73 | //获取当前用户 | |
| 74 | LoginUser currentUser = LoginContextHolder.getContext().getUser(); | |
| 75 | if (currentUser == null) { | |
| 76 | throw new ServiceException(CoreExceptionEnum.NO_CURRENT_USER); | |
| 77 | } | |
| 78 | ||
| 79 | //获取当前用户的头像id | |
| 80 | RestUser user = restUserService.getById(currentUser.getId()); | |
| 81 | String avatarFileId = user.getAvatar(); | |
| 82 | ||
| 83 | try { | |
| 84 | //返回头像id的字节流 | |
| 85 | return getFileBytes(avatarFileId); | |
| 86 | } catch (Exception e) { | |
| 87 | ||
| 88 | //返回默认头像 | |
| 89 | return Base64.decode(DefaultAvatar.BASE_64_AVATAR); | |
| 90 | } | |
| 91 | } | |
| 92 | ||
| 93 | /** | |
| 94 | * 获取文件流 | |
| 95 | * | |
| 96 | * @author fengshuonan | |
| 97 | * @Date 2019-05-04 17:04 | |
| 98 | */ | |
| 99 | public byte[] getFileBytes(String fileId) { | |
| 100 | ||
| 101 | if (ToolUtil.isEmpty(fileId)) { | |
| 102 | throw new ServiceException(BizExceptionEnum.FILE_NOT_FOUND); | |
| 103 | } | |
| 104 | ||
| 105 | RestFileInfo fileInfo = this.getById(fileId); | |
| 106 | if (fileInfo == null) { | |
| 107 | throw new ServiceException(BizExceptionEnum.FILE_NOT_FOUND); | |
| 108 | } else { | |
| 109 | try { | |
| 110 | String filePath = fileInfo.getFilePath(); | |
| 111 | return IoUtil.readBytes(new FileInputStream(filePath)); | |
| 112 | } catch (FileNotFoundException e) { | |
| 113 | log.error("文件未找到，id为：" + fileId, e); | |
| 114 | throw new ServiceException(BizExceptionEnum.FILE_NOT_FOUND); | |
| 115 | } | |
| 116 | } | |
| 117 | } | |
| 118 | ||
| 119 | /** | |
| 120 | * 上传文件 | |
| 121 | * | |
| 122 | * @author fengshuonan | |
| 123 | * @Date 2019-05-04 17:18 | |
| 124 | */ | |
| 125 | public String uploadFile(MultipartFile file) { | |
| 126 | ||
| 127 | //生成文件的唯一id | |
| 128 | String fileId = IdWorker.getIdStr(); | |
| 129 | ||
| 130 | //获取文件后缀 | |
| 131 | String fileSuffix = ToolUtil.getFileSuffix(file.getOriginalFilename()); | |
| 132 | ||
| 133 | //获取文件原始名称 | |
| 134 | String originalFilename = file.getOriginalFilename(); | |
| 135 | ||
| 136 | //生成文件的最终名称 | |
| 137 | String finalName = fileId + "." + ToolUtil.getFileSuffix(originalFilename); | |
| 138 | ||
| 139 | try { | |
| 140 | //保存文件到指定目录 | |
| 141 | String fileSavePath = ConstantsContext.getFileUploadPath(); | |
| 142 | File newFile = new File(fileSavePath + finalName); | |
| 143 | file.transferTo(newFile); | |
| 144 | ||
| 145 | //保存文件信息 | |
| 146 | RestFileInfo fileInfo = new RestFileInfo(); | |
| 147 | fileInfo.setFileId(fileId); | |
| 148 | fileInfo.setFileName(originalFilename); | |
| 149 | fileInfo.setFileSuffix(fileSuffix); | |
| 150 | fileInfo.setFilePath(fileSavePath + finalName); | |
| 151 | fileInfo.setFinalName(finalName); | |
| 152 | ||
| 153 | //计算文件大小kb | |
| 154 | long kb = new BigDecimal(file.getSize()) | |
| 155 | .divide(BigDecimal.valueOf(1024)) | |
| 156 | .setScale(0, BigDecimal.ROUND_HALF_UP).longValue(); | |
| 157 | fileInfo.setFileSizeKb(kb); | |
| 158 | this.save(fileInfo); | |
| 159 | } catch (Exception e) { | |
| 160 | log.error("上传文件错误！", e); | |
| 161 | throw new ServiceException(BizExceptionEnum.UPLOAD_ERROR); | |
| 162 | } | |
| 163 | ||
| 164 | return fileId; | |
| 165 | ||
| 166 | } | |
| 167 | } | |
