| | |
| | | import com.qcloud.cos.ClientConfig; |
| | | import com.qcloud.cos.auth.BasicCOSCredentials; |
| | | import com.qcloud.cos.auth.COSCredentials; |
| | | import com.qcloud.cos.exception.CosClientException; |
| | | import com.qcloud.cos.exception.CosServiceException; |
| | | import com.qcloud.cos.http.HttpProtocol; |
| | | import com.qcloud.cos.model.COSObject; |
| | | import com.qcloud.cos.model.GetObjectRequest; |
| | | import com.qcloud.cos.model.ObjectMetadata; |
| | | import com.qcloud.cos.model.PutObjectResult; |
| | | import com.qcloud.cos.region.Region; |
| | | import com.qcloud.cos.utils.IOUtils; |
| | | import com.ruoyi.common.utils.WebUtils; |
| | | import org.springframework.beans.factory.annotation.Value; |
| | | import org.springframework.stereotype.Component; |
| | | import org.springframework.web.multipart.MultipartFile; |
| | | |
| | | import javax.servlet.ServletOutputStream; |
| | | import javax.servlet.http.HttpServletResponse; |
| | | import java.io.ByteArrayOutputStream; |
| | | import java.io.IOException; |
| | | import java.io.InputStream; |
| | | import java.io.OutputStream; |
| | | import java.util.Base64; |
| | | import java.util.UUID; |
| | | |
| | | /** |
| | |
| | | */ |
| | | @Value("${cos.client.bucket}") |
| | | private String bucketName; |
| | | /** |
| | | * 文件存放位置 |
| | | */ |
| | | @Value("${cos.client.location}") |
| | | private String location; |
| | | |
| | | /** |
| | | * 1.调用静态方法getCosClient()就会获得COSClient实例 |
| | |
| | | //使用UUID工具 创建唯一名称,放置文件重名被覆盖,在拼接上上命令获取的文件类型 |
| | | String fileName = UUID.randomUUID() + fileType; |
| | | // 指定文件上传到 COS 上的路径,即对象键。最终文件会传到存储桶名字中的images文件夹下的fileName名字 |
| | | String key = "xizang/" + fileName; |
| | | String key = location+"/" + fileName; |
| | | // 创建上传Object的Metadata |
| | | ObjectMetadata objectMetadata = new ObjectMetadata(); |
| | | // - 使用输入流存储,需要设置请求长度 |
| | |
| | | } |
| | | } |
| | | |
| | | /** |
| | | * 下载文件 |
| | | * @param file |
| | | * @return |
| | | */ |
| | | public void downLoadFile(String file) { |
| | | HttpServletResponse response = WebUtils.response(); |
| | | String replace = file.replace(rootSrc, ""); |
| | | response.setHeader("Access-Control-Expose-Headers","File-Type"); |
| | | COSCredentials cred = new BasicCOSCredentials( |
| | | secretId, |
| | | secretKey); |
| | | // 2.1 设置存储桶的地域(上文获得) |
| | | Region region = new Region(bucketAddr); |
| | | ClientConfig clientConfig = new ClientConfig(region); |
| | | // 2.2 使用https协议传输 |
| | | clientConfig.setHttpProtocol(HttpProtocol.https); |
| | | COSClient cosClient = new COSClient(cred, clientConfig); |
| | | try { |
| | | // 5. 下载文件并获取输入流 |
| | | InputStream inputStream = cosClient.getObject(bucketName, replace).getObjectContent(); |
| | | ServletOutputStream outputStream = response.getOutputStream(); |
| | | // 6. 处理输入流,例如读取内容或保存到本地文件 |
| | | // 这里仅作示例,实际应用中需要根据需求处理输入流 |
| | | byte[] buffer = new byte[1024]; |
| | | int len; |
| | | while ((len = inputStream.read(buffer)) != -1) { |
| | | // 处理读取到的数据 |
| | | outputStream.write(buffer, 0, len); |
| | | } |
| | | } catch (Exception e) { |
| | | e.printStackTrace(); |
| | | } finally { |
| | | // 7. 关闭输入流 |
| | | cosClient.shutdown(); |
| | | } |
| | | } |
| | | public String downLoadFileImg(String file) { |
| | | byte[] data = null; |
| | | String replace = file.replace(rootSrc, ""); |
| | | COSCredentials cred = new BasicCOSCredentials( |
| | | secretId, |
| | | secretKey); |
| | | // 2.1 设置存储桶的地域(上文获得) |
| | | Region region = new Region(bucketAddr); |
| | | ClientConfig clientConfig = new ClientConfig(region); |
| | | // 2.2 使用https协议传输 |
| | | clientConfig.setHttpProtocol(HttpProtocol.https); |
| | | COSClient cosClient = new COSClient(cred, clientConfig); |
| | | try { |
| | | // 5. 下载文件并获取输入流 |
| | | InputStream inputStream = cosClient.getObject(bucketName, replace).getObjectContent(); |
| | | ByteArrayOutputStream swapStream = new ByteArrayOutputStream(); |
| | | // 6. 处理输入流,例如读取内容或保存到本地文件 |
| | | byte[] buffer = new byte[1024]; |
| | | int len; |
| | | while ((len = inputStream.read(buffer)) != -1) { |
| | | // 处理读取到的数据 |
| | | swapStream.write(buffer, 0, len); |
| | | } |
| | | data = swapStream.toByteArray(); |
| | | } catch (Exception e) { |
| | | e.printStackTrace(); |
| | | } finally { |
| | | // 7. 关闭输入流 |
| | | cosClient.shutdown(); |
| | | } |
| | | return Base64.getEncoder().encodeToString(data); |
| | | } |
| | | } |