springboot上传图片到阿里云

1.登录注册购买oss服务

2.创建Bucket

3.获取accesskey

4.编写阿里云上传工具类

public class AliOssUtil {
    private static final String ENDPOINT = "https://oss-cn-beijing.aliyuncs.com";
    private static final String ACCESS_KEY_ID="填写自己的accesskey";
    private static final String ACCESS_KEY_SECRET="填写自己的secret";
    // 填写Bucket名称，例如examplebucket。
    private static final String BUCKET_NAME = "big-eevent7";
    // 填写Object完整路径，完整路径中不能包含Bucket名称，例如exampledir/exampleobject.txt。
    public static String uploadFile(String objectName, InputStream inputStream) throws Exception {


        // 创建OSSClient实例。
        OSS ossClient = new OSSClientBuilder().build(ENDPOINT, ACCESS_KEY_ID,ACCESS_KEY_SECRET);
        String url = "";
        try {
            // 填写字符串。
            String content = "Hello OSS，你好世界";

            // 创建PutObjectRequest对象。
            PutObjectRequest putObjectRequest = new PutObjectRequest(BUCKET_NAME, objectName, inputStream);

            // 如果需要上传时设置存储类型和访问权限，请参考以下示例代码。
            // ObjectMetadata metadata = new ObjectMetadata();
            // metadata.setHeader(OSSHeaders.OSS_STORAGE_CLASS, StorageClass.Standard.toString());
            // metadata.setObjectAcl(CannedAccessControlList.Private);
            // putObjectRequest.setMetadata(metadata);

            // 上传字符串。
            PutObjectResult result = ossClient.putObject(putObjectRequest);
            url="https://"+BUCKET_NAME+"."+ENDPOINT.substring(ENDPOINT.lastIndexOf("/")+1)+"/"+objectName;

        } catch (OSSException oe) {
            System.out.println("Caught an OSSException, which means your request made it to OSS, "
                    + "but was rejected with an error response for some reason.");
            System.out.println("Error Message:" + oe.getErrorMessage());
            System.out.println("Error Code:" + oe.getErrorCode());
            System.out.println("Request ID:" + oe.getRequestId());
            System.out.println("Host ID:" + oe.getHostId());
        } catch (ClientException ce) {
            System.out.println("Caught an ClientException, which means the client encountered "
                    + "a serious internal problem while trying to communicate with OSS, "
                    + "such as not being able to access the network.");
            System.out.println("Error Message:" + ce.getMessage());
        } finally {
            if (ossClient != null) {
                ossClient.shutdown();
            }
        }
        return url;
    }
}