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删除文件 yudao-module-infra/yudao-module-infra-biz/src/main/java/cn/iocoder/yudao/module/infra/service/file/FileServiceImpl.java

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咱哥丶 2023-01-04 12:02:46 +00:00 committed by Gitee
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yudao-module-infra/yudao-module-infra-biz/src/main/java/cn/iocoder/yudao/module/infra/service/file/FileServiceImpl.java
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package cn.iocoder.yudao.module.infra.service.file;
import cn.hutool.core.lang.Assert;
import cn.hutool.core.util.StrUtil;
import cn.iocoder.yudao.framework.common.pojo.PageResult;
import cn.iocoder.yudao.framework.common.util.io.FileUtils;
import cn.iocoder.yudao.framework.file.core.client.FileClient;
import cn.iocoder.yudao.framework.file.core.utils.FileTypeUtils;
import cn.iocoder.yudao.module.infra.controller.admin.file.vo.file.FilePageReqVO;
import cn.iocoder.yudao.module.infra.dal.dataobject.file.FileDO;
import cn.iocoder.yudao.module.infra.dal.mysql.file.FileMapper;
import lombok.SneakyThrows;
import org.springframework.stereotype.Service;
import javax.annotation.Resource;
import static cn.iocoder.yudao.framework.common.exception.util.ServiceExceptionUtil.exception;
import static cn.iocoder.yudao.module.infra.enums.ErrorCodeConstants.FILE_NOT_EXISTS;
/**
* 文件 Service 实现类
*
* @author 芋道源码
*/
@Service
public class FileServiceImpl implements FileService {
@Resource
private FileConfigService fileConfigService;
@Resource
private FileMapper fileMapper;
@Override
public PageResult<FileDO> getFilePage(FilePageReqVO pageReqVO) {
return fileMapper.selectPage(pageReqVO);
}
@Override
@SneakyThrows
public String createFile(String name, String path, byte[] content) {
// 计算默认的 path 名，path可增加自定义路径如 aaa/,aaa/bbb/
String type = FileTypeUtils.getMineType(content, name);
path = StrUtil.isEmpty(path) ? FileUtils.generatePath(content, name) : path + FileUtils.generatePath(content, name);
// 如果 name 为空，则使用 path 填充
if (StrUtil.isEmpty(name)) {
name = path;
}
// 上传到文件存储器
FileClient client = fileConfigService.getMasterFileClient();
Assert.notNull(client, "客户端(master) 不能为空");
String url = client.upload(content, path, type);
// 保存到数据库
FileDO file = new FileDO();
file.setConfigId(client.getId());
file.setName(name);
file.setPath(path);
file.setUrl(url);
file.setType(type);
file.setSize(content.length);
fileMapper.insert(file);
return url;
}
@Override
public void deleteFile(Long id) throws Exception {
// 校验存在
FileDO file = this.validateFileExists(id);
// 从文件存储器中删除
FileClient client = fileConfigService.getFileClient(file.getConfigId());
Assert.notNull(client, "客户端({}) 不能为空", file.getConfigId());
client.delete(file.getPath());
// 删除记录
fileMapper.deleteById(id);
}
private FileDO validateFileExists(Long id) {
FileDO fileDO = fileMapper.selectById(id);
if (fileDO == null) {
throw exception(FILE_NOT_EXISTS);
}
return fileDO;
}
@Override
public byte[] getFileContent(Long configId, String path) throws Exception {
FileClient client = fileConfigService.getFileClient(configId);
Assert.notNull(client, "客户端({}) 不能为空", configId);
return client.getContent(path);
}
}