package com.ruoyi.other.service.impl;
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import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
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import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
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import com.ruoyi.common.utils.StringUtils;
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import com.ruoyi.other.mapper.TempFileMapper;
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import com.ruoyi.other.pojo.TempFile;
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import com.ruoyi.other.service.TempFileService;
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import com.ruoyi.sales.mapper.CommonFileMapper;
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import com.ruoyi.sales.pojo.CommonFile;
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import lombok.extern.slf4j.Slf4j;
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import org.apache.catalina.util.URLEncoder;
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import org.apache.commons.io.FilenameUtils;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.beans.factory.annotation.Value;
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import org.springframework.scheduling.annotation.Scheduled;
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import org.springframework.stereotype.Service;
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import org.springframework.web.multipart.MultipartFile;
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import java.io.IOException;
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import java.nio.charset.StandardCharsets;
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import java.nio.file.Files;
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import java.nio.file.Path;
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import java.nio.file.Paths;
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import java.nio.file.StandardCopyOption;
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import java.time.LocalDate;
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import java.time.LocalDateTime;
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import java.time.format.DateTimeFormatter;
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import java.util.List;
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import java.util.UUID;
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@Service
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@Slf4j
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public class TempFileServiceImpl extends ServiceImpl<TempFileMapper, TempFile> implements TempFileService {
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@Autowired
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private TempFileMapper tempFileMapper;
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@Autowired
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private CommonFileMapper commonFileMapper;
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@Value("${file.upload-dir}")
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private String uploadDir;
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@Value("${file.temp-dir}")
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private String tempDir;
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// 上传到临时目录
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@Override
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public TempFile uploadFile(MultipartFile file,Integer type) throws IOException {
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// 1. 生成临时文件ID和路径
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String tempId = UUID.randomUUID().toString();
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String originalFilename = file.getOriginalFilename();
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if(originalFilename == null) throw new IOException("文件名不能为空");
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// URLEncoder urlEncoder = new URLEncoder();
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// String encodedFilename = urlEncoder.encode(originalFilename, StandardCharsets.UTF_8);
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// encodedFilename = encodedFilename.replaceAll("%2E",".");
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// Path tempFilePath = Paths.get(tempDir, tempId + "_" + encodedFilename);
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Path tempFilePath = Paths.get(tempDir, tempId + "_" + file.getOriginalFilename());
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// 2. 确保目录存在
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Path parentDir = tempFilePath.getParent();
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if (parentDir != null) {
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Files.createDirectories(parentDir); // 递归创建目录
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}
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// 3. 保存文件到临时目录
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file.transferTo(tempFilePath.toFile());
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// 4. 保存临时文件记录
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TempFile tempFileRecord = new TempFile();
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tempFileRecord.setTempId(tempId);
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tempFileRecord.setOriginalName(file.getOriginalFilename());
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tempFileRecord.setTempPath(tempFilePath.toString());
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tempFileRecord.setExpireTime(LocalDateTime.now().plusHours(2)); // 2小时后过期
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tempFileRecord.setType(type);
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tempFileMapper.insert(tempFileRecord);
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return tempFileRecord;
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}
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/**
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* 将临时文件迁移到正式目录
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*
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* @param businessId 业务ID（销售台账ID）
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* @param tempFileIds 临时文件ID列表
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* @throws IOException 文件操作异常
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*/
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private void migrateTempFilesToFormal(Long businessId, List<String> tempFileIds,Integer fileType) throws IOException {
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if (com.baomidou.mybatisplus.core.toolkit.CollectionUtils.isEmpty(tempFileIds)) {
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return;
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}
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// 构建正式目录路径（按业务类型和日期分组）
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String formalDir = uploadDir + LocalDate.now().format(DateTimeFormatter.ISO_LOCAL_DATE);
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Path formalDirPath = Paths.get(formalDir);
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// 确保正式目录存在（递归创建）
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if (!Files.exists(formalDirPath)) {
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Files.createDirectories(formalDirPath);
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}
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for (String tempFileId : tempFileIds) {
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// 查询临时文件记录
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TempFile tempFile = tempFileMapper.selectById(tempFileId);
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if (tempFile == null) {
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log.warn("临时文件不存在，跳过处理: {}", tempFileId);
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continue;
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}
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// 构建正式文件名（包含业务ID和时间戳，避免冲突）
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String originalFilename = tempFile.getOriginalName();
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String fileExtension = FilenameUtils.getExtension(originalFilename);
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String formalFilename = businessId + "_" +
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System.currentTimeMillis() + "_" +
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UUID.randomUUID().toString().substring(0, 8) +
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(StringUtils.hasText(fileExtension) ? "." + fileExtension : "");
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Path formalFilePath = formalDirPath.resolve(formalFilename);
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try {
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// 执行文件迁移（使用原子操作确保安全性）
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Files.move(
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Paths.get(tempFile.getTempPath()),
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formalFilePath,
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StandardCopyOption.REPLACE_EXISTING,
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StandardCopyOption.ATOMIC_MOVE
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);
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log.info("文件迁移成功: {} -> {}", tempFile.getTempPath(), formalFilePath);
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// 更新文件记录（关联到业务ID）
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CommonFile fileRecord = new CommonFile();
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fileRecord.setCommonId(businessId);
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fileRecord.setName(originalFilename);
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fileRecord.setUrl(formalFilePath.toString());
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fileRecord.setCreateTime(LocalDateTime.now());
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fileRecord.setType(fileType);
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commonFileMapper.insert(fileRecord);
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// 删除临时文件记录
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tempFileMapper.deleteById(tempFile);
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log.info("文件迁移成功: {} -> {}", tempFile.getTempPath(), formalFilePath);
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} catch (IOException e) {
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log.error("文件迁移失败: {}", tempFile.getTempPath(), e);
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// 可选择回滚事务或记录失败文件
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throw new IOException("文件迁移异常", e);
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}
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}
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}
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@Scheduled(cron = "0 0 3 * * ?") // 每天凌晨3点执行
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public void cleanupExpiredTempFiles() {
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LambdaQueryWrapper<TempFile> wrapper = new LambdaQueryWrapper<>();
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wrapper.lt(TempFile::getExpireTime, LocalDateTime.now()); // expireTime < 当前时间
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List<TempFile> expiredFiles = tempFileMapper.selectList(wrapper);
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for (TempFile file : expiredFiles) {
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try {
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// 删除物理文件
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Files.deleteIfExists(Paths.get(file.getTempPath()));
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// 删除数据库记录
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tempFileMapper.deleteById(file);
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log.info("已清理过期临时文件: {}", file.getTempPath());
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} catch (IOException e) {
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log.error("删除文件失败: {}", file.getTempPath(), e);
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// 可选择记录失败日志或重试
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}
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}
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log.info("过期临时文件清理完成，共清理 {} 个文件", expiredFiles.size());
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}
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}
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