準備工作:

1.申請oss 你會得到 endpoint，accessKeyId，bucketName，accessKeySecret

2.引入oss maven dependency ： com.aliyun.oss:aliyun-sdk-oss:jar:2.5.0

3. 建立ossClient

@Bean

public OSSClient createOSSClient() {

OSSClient client = new OSSClient(endpoint, accessKeyId, accessKeySecret);

return client;

}

4.上傳檔案:

InputStream is=new ByteArrayInputStream(bytes);

logger.info("key 為: " + key+" 對應bucket :"+bucketName);

PutObjectResult result = oSSClient.putObject(bucketName, key, is);

logger.info(JSON.toJSONString(result));

5.下載檔案:

// 下載圖片

OSSObject oSSObject = oSSClient.getObject(bucketName, fileId);

response.setCharacterEncoding("utf-8");

// 設定返回的檔案編碼

response.setContentType("image/png;image/gif;image/jpeg;image/bmp");

try {

response.getOutputStream().write(IOUtils.toByteArray(oSSObject.getObjectContent()));

} catch (IOException e) {

logger.error("檔案下載出錯", e);

throw new CampusGuardException("檔案下載出錯");

}