oss 对象存储说明

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oss 对象存储说明

                  

官网：https://help.aliyun.com/document_detail/31927.html

              

                 

                                       

oss 对象存储

           

对象存储可选方式：服务端上传、客户端直传oss、客户端直传oss并设置回调url

        

客户端直传oss，设置回调url

              

# 获取签名（policy）和回调参数
客户端向后端服务器获取签名信息，后端服务器返回签名信息、回调参数

# 客户端直传到oss
客户端直接将对象上传到oss服务器，附带回调参数；
oss根据回调参数，想后端服务器发送回调请求（请求参数如文件路径、大小等）；
应用服务器验证回调请求的authorization，验证通过向oss服务器返回响应数据

# oss向客户端返回响应数据
oss服务器收到应用服务器的响应数据后，将响应数据发送给客户端

              

客户端向应用服务请求获取policy、回调参数

# 获取policy、回调的应用地址
serverUrl = 'http://88.88.88.88:8888'

           

应用服务器返回policy、回调参数（body部分）

{
  "accessid":"LTAI5tAzivUnv4ZF1azP****",
  "host":"http://post-test.oss-cn-hangzhou.aliyuncs.com",
  "policy":"eyJleHBpcmF0aW9uIjoiMjAxNS0xMS0wNVQyMDoyMzoyM1oiLCJjxb25kaXRpb25zIjpbWyJjcb250ZW50LWxlbmd0aC1yYW5nZSIsMCwxMDQ4NTc2MDAwXSxbInN0YXJ0cy13aXRoIiwiJGtleSIsInVzZXItZGlyXC8i****",
  "signature":"I2u57FWjTKqX/AE6doIdyff1****",
  "expire":1446727949,
  "callback":"eyJjYWxsYmFja1VybCI6Imh0dHA6Ly9vc3MtZGVtby5hbGl5dW5jcy5jb206MjM0NTAiLAoiY2FsbGJhY2tCb2R5IjoiZmlsZW5hbWU9JHtvYmplY3R9JnNpemU9JHtzaXplfSZtaW1lVHlwZT0ke21pbWVUeXBlfSZoZWlnaHQ9JHtpbWFnZUluZm8uaGVpZ2h0fSZ3aWR0aD0ke2ltYWdlSW5mby53aWR0aH0iLAoiY2FsbGJhY2tCb2R5VHlwZSI6ImFwcGxpY2F0aW9uL3gtd3d3LWZvcm0tdXJsZW5jb2RlZCJ9",
  "dir":"user-dirs/"
}

           

callback使用Base64编码，解码后内容如下

{
  "callbackUrl":"http://oss-demo.aliyuncs.com:23450",
  "callbackBody":"filename=${object}&size=${size}&mimeType=${mimeType}&height=${imageInfo.height}&width=${imageInfo.width}",
  "callbackBodyType":"application/x-www-form-urlencoded"
}

              

                

客户端向oss发送文件

new_multipart_params = {
     'key' : key + '${filename}',
     'policy': policyBase64,
     'OSSAccessKeyId': accessid,
     // 设置服务端返回状态码为200，不设置则默认返回状态码204。
     'success_action_status' : '200', 
     'callback': 　callbackbody,
     'signature': signature,
 };

             

oss根据回调设置，发送回调请求给应用服务器

Hypertext Transfer Protocol
    POST / HTTP/1.1\r\n
    Host: 47.97.168.53\r\n
    Connection: close\r\n
    Content-Length: 76\r\n
    Authorization: fsNxFF0w******MNAoFb//a8x6v2lI1******h3nFUDALgku9bhC+cWQsnxuCo******tBUmnDI6k1PofggA4g==\r\n
                 //应用服务器验证authorization，验证通过后返回响应数据
    Content-MD5: eiEMyp7lbL8KStPBzMdr9w==\r\n
    Content-Type: application/x-www-form-urlencoded\r\n
    Date: Sat, 15 Sep 2018 10:24:12 GMT\r\n
    User-Agent: aliyun-oss-callback\r\n
    x-oss-additional-headers: \r\n
    x-oss-bucket: signedcallback\r\n
    x-oss-owner: 137918634953****\r\n
    x-oss-pub-key-url: aHR0cDovL2dvc3NwdWJsaWMuYWxpY2RuLmNvbS9jYWxsYmFja19wdWJfa2V5X3YxLnaH****\r\n
    x-oss-request-id: 534B371674E88A4D8906****\r\n
    x-oss-requester: 137918634953****\r\n
    x-oss-signature-version: 1.0\r\n
    x-oss-tag: CALLBACK\r\n
    eagleeye-rpcid: 0.1\r\n
    \r\n
    [Full request URI: http://47.xx.xx.53/]
    [HTTP request 1/1]
    [Response in frame: 39]
    File Data: 76 bytes
HTML Form URL Encoded: application/x-www-form-urlencoded
    Form item: "filename" = ".snappython.png"     //文件名称
    Form item: "size" = "6014"                    //文件大小
    Form item: "mimeType" = "image/png"           //文件类型
    Form item: "height" = "221"                   //文件高度

              

应用服务器验证authorization，验证通过后返回响应数据

{
  "String value": "ok",
  "Key": "Status"
}

oss收到响应数据后，将响应数据转发给客户端

           

              

                                       

相关依赖

     

        
        
            com.alibaba.cloud
            aliyun-oss-spring-boot-starter
        

    
        
            
                org.springframework.boot
                spring-boot-dependencies
                ${spring-boot.version}
                pom
                import
            

           
            
                com.alibaba.cloud
                aliyun-spring-boot-dependencies
                ${aliyun-spring-boot.version}
                pom
                import
            
        
    

             

                    

                                       

相关类与接口

    

OssContextAutoConfiguration

@Configuration(
    proxyBeanMethods = false
)
@ConditionalOnClass(
    name = {"com.alibaba.cloud.spring.boot.oss.autoconfigure.OssAutoConfiguration"}
)
@ConditionalOnProperty(
    prefix = "alibaba.cloud.oss",
    name = {"enabled"},
    matchIfMissing = true
)
@EnableConfigurationProperties({OssProperties.class})   //自动创建oss配置类
@ImportAutoConfiguration({AliCloudContextAutoConfiguration.class})
public class OssContextAutoConfiguration {
    public OssContextAutoConfiguration() {
    }

    @ConditionalOnMissingBean
    @Bean
    public OSS ossClient(AliCloudProperties aliCloudProperties, OssProperties ossProperties) {
                        //创建ossClient对象
        if (ossProperties.getAuthorizationMode() == AliCloudAuthorizationMode.AK_SK) {
            Assert.isTrue(!StringUtils.isEmpty(ossProperties.getEndpoint()), "Oss endpoint can't be empty.");
            Assert.isTrue(!StringUtils.isEmpty(aliCloudProperties.getAccessKey()), "${alibaba.cloud.access-key} can't be empty.");
            Assert.isTrue(!StringUtils.isEmpty(aliCloudProperties.getSecretKey()), "${alibaba.cloud.secret-key} can't be empty.");
            return (new OSSClientBuilder()).build(ossProperties.getEndpoint(), aliCloudProperties.getAccessKey(), aliCloudProperties.getSecretKey(), ossProperties.getConfig());
        } else if (ossProperties.getAuthorizationMode() == AliCloudAuthorizationMode.STS) {
            Assert.isTrue(!StringUtils.isEmpty(ossProperties.getEndpoint()), "Oss endpoint can't be empty.");
            Assert.isTrue(!StringUtils.isEmpty(ossProperties.getSts().getAccessKey()), "Access key can't be empty.");
            Assert.isTrue(!StringUtils.isEmpty(ossProperties.getSts().getSecretKey()), "Secret key can't be empty.");
            Assert.isTrue(!StringUtils.isEmpty(ossProperties.getSts().getSecurityToken()), "Security Token can't be empty.");
            return (new OSSClientBuilder()).build(ossProperties.getEndpoint(), ossProperties.getSts().getAccessKey(), ossProperties.getSts().getSecretKey(), ossProperties.getSts().getSecurityToken(), ossProperties.getConfig());
        } else {
            throw new IllegalArgumentException("Unknown auth mode.");
        }
    }
}

               

OssProperties

@ConfigurationProperties("alibaba.cloud.oss")
public class OssProperties {
    @Value("${alibaba.cloud.oss.authorization-mode:AK_SK}")
    private AliCloudAuthorizationMode authorizationMode;
    private String endpoint;
    private OssProperties.StsToken sts;
    private ClientBuilderConfiguration config;

    public OssProperties() {
    }


********
静态内部类：StsToken

    public static class StsToken {
        private String accessKey;
        private String secretKey;
        private String securityToken;

        public StsToken() {
        }

          

AliCloudAuthorizationMode：认证枚举

public enum AliCloudAuthorizationMode {
    AK_SK,
    STS;

    private AliCloudAuthorizationMode() {
    }
}

          

ClientBuilderConfiguration

public class ClientBuilderConfiguration extends ClientConfiguration {
    public ClientBuilderConfiguration() {
        this.supportCname = false;
    }
}

              

ClientConfiguration

public class ClientConfiguration {
    public static final String DEFAULT_USER_AGENT = VersionInfoUtils.getDefaultUserAgent();
    public static final int DEFAULT_MAX_RETRIES = 3;
    public static final int DEFAULT_CONNECTION_REQUEST_TIMEOUT = -1;
    public static final int DEFAULT_CONNECTION_TIMEOUT = 50000;
    public static final int DEFAULT_SOCKET_TIMEOUT = 50000;
    public static final int DEFAULT_MAX_CONNECTIONS = 1024;
    public static final long DEFAULT_CONNECTION_TTL = -1L;
    public static final long DEFAULT_IDLE_CONNECTION_TIME = 60000L;
    public static final int DEFAULT_VALIDATE_AFTER_INACTIVITY = 2000;
    public static final int DEFAULT_THREAD_POOL_WAIT_TIME = 60000;
    public static final int DEFAULT_REQUEST_TIMEOUT = 300000;
    public static final long DEFAULT_SLOW_REQUESTS_THRESHOLD = 300000L;
    public static final boolean DEFAULT_USE_REAPER = true;
    public static final String DEFAULT_CNAME_EXCLUDE_LIST = "aliyuncs.com,aliyun-inc.com,aliyun.com";
    protected String userAgent;
    protected int maxErrorRetry;
    protected int connectionRequestTimeout;
    protected int connectionTimeout;
    protected int socketTimeout;
    protected int maxConnections;
    protected long connectionTTL;
    protected boolean useReaper;
    protected long idleConnectionTime;
    protected Protocol protocol;
    protected String proxyHost;
    protected int proxyPort;
    protected String proxyUsername;
    protected String proxyPassword;
    protected String proxyDomain;
    protected String proxyWorkstation;
    protected boolean supportCname;
    protected List cnameExcludeList;
    protected Lock rlock;
    protected boolean sldEnabled;
    protected int requestTimeout;
    protected boolean requestTimeoutEnabled;
    protected long slowRequestsThreshold;
    protected Map defaultHeaders;
    protected boolean crcCheckEnabled;
    protected List signerHandlers;

    public ClientConfiguration() {
        this.userAgent = DEFAULT_USER_AGENT;
        this.maxErrorRetry = 3;
        this.connectionRequestTimeout = -1;
        this.connectionTimeout = 50000;
        this.socketTimeout = 50000;
        this.maxConnections = 1024;
        this.connectionTTL = -1L;
        this.useReaper = true;
        this.idleConnectionTime = 60000L;
        this.protocol = Protocol.HTTP;
        this.proxyHost = null;
        this.proxyPort = -1;
        this.proxyUsername = null;
        this.proxyPassword = null;
        this.proxyDomain = null;
        this.proxyWorkstation = null;
        this.supportCname = true;
        this.cnameExcludeList = new ArrayList();
        this.rlock = new ReentrantLock();
        this.sldEnabled = false;
        this.requestTimeout = 300000;
        this.requestTimeoutEnabled = false;
        this.slowRequestsThreshold = 300000L;
        this.defaultHeaders = new LinkedHashMap();
        this.crcCheckEnabled = true;
        this.signerHandlers = new LinkedList();
    }

            

AliCloudContextAutoConfiguration

Configuration(
    proxyBeanMethods = false
)
@EnableConfigurationProperties({AliCloudProperties.class})
public class AliCloudContextAutoConfiguration {
    public AliCloudContextAutoConfiguration() {
    }
}

              

AliCloudProperties

@ConfigurationProperties("alibaba.cloud")
public class AliCloudProperties implements AliCloudConfiguration {
    public static final String PROPERTY_PREFIX = "alibaba.cloud";
    public static final String ACCESS_KEY_PROPERTY = "alibaba.cloud.access-key";
    public static final String SECRET_KEY_PROPERTY = "alibaba.cloud.secret-key";
    private String accessKey;
    private String secretKey;

    public AliCloudProperties() {
    }

                

Oss：oss客户端，对象上传、更新、删除、下载等操作

public interface OSS {
 
    String generatePostPolicy(Date var1, PolicyConditions var2) throws ClientException;
           //生成post policy，编码后作为policy返回给前端
 
    String calculatePostSignature(String var1);
           //生成signature，作为signature返回给前端
 
*********
bucket 操作
 
    Bucket createBucket(String var1) throws OSSException, ClientException;
    Bucket createBucket(CreateBucketRequest var1) throws OSSException, ClientException;
 
    VoidResult deleteBucket(String var1) throws OSSException, ClientException;
    VoidResult deleteBucket(GenericRequest var1) throws OSSException, ClientException;
 
    List listBuckets() throws OSSException, ClientException;
    BucketList listBuckets(String var1, String var2, Integer var3) throws OSSException, ClientException;
    BucketList listBuckets(ListBucketsRequest var1) throws OSSException, ClientException;
 
 
*********
bucket 权限操作
 
    VoidResult setBucketAcl(String var1, CannedAccessControlList var2) throws OSSException, ClientException;
    VoidResult setBucketAcl(SetBucketAclRequest var1) throws OSSException, ClientException;
 
    AccessControlList getBucketAcl(String var1) throws OSSException, ClientException;
    AccessControlList getBucketAcl(GenericRequest var1) throws OSSException, ClientException;
 
 
*********
bucket 是否存在
 
    boolean doesBucketExist(String var1) throws OSSException, ClientException;
    boolean doesBucketExist(GenericRequest var1) throws OSSException, ClientException;
 
 
*********
object 对象
 
    ObjectListing listObjects(String var1) throws OSSException, ClientException;
    ObjectListing listObjects(String var1, String var2) throws OSSException, ClientException;
    ObjectListing listObjects(ListObjectsRequest var1) throws OSSException, ClientException;
 
 
*********
object 存储
 
    PutObjectResult putObject(String var1, String var2, InputStream var3) throws OSSException, ClientException;
    PutObjectResult putObject(String var1, String var2, InputStream var3, ObjectMetadata var4) throws OSSException, ClientException;
    PutObjectResult putObject(String var1, String var2, File var3, ObjectMetadata var4) throws OSSException, ClientException;
    PutObjectResult putObject(String var1, String var2, File var3) throws OSSException, ClientException;
 
    PutObjectResult putObject(PutObjectRequest var1) throws OSSException, ClientException;
 
    PutObjectResult putObject(URL var1, String var2, Map var3) throws OSSException, ClientException;
    PutObjectResult putObject(URL var1, String var2, Map var3, boolean var4) throws OSSException, ClientException;
    PutObjectResult putObject(URL var1, InputStream var2, long var3, Map var5) throws OSSException, ClientException;
    PutObjectResult putObject(URL var1, InputStream var2, long var3, Map var5, boolean var6) throws OSSException, ClientException;
 
 
*********
object 追加
 
    AppendObjectResult appendObject(AppendObjectRequest var1) throws OSSException, ClientException;
 
 
*********
object 复制
 
    CopyObjectResult copyObject(String var1, String var2, String var3, String var4) throws OSSException, ClientException;
    CopyObjectResult copyObject(CopyObjectRequest var1) throws OSSException, ClientException;
 
 
*********
object 获取
 
    OSSObject getObject(String var1, String var2) throws OSSException, ClientException;
    ObjectMetadata getObject(GetObjectRequest var1, File var2) throws OSSException, ClientException;
    OSSObject getObject(GetObjectRequest var1) throws OSSException, ClientException;
    OSSObject selectObject(SelectObjectRequest var1) throws OSSException, ClientException;
    OSSObject getObject(URL var1, Map var2) throws OSSException, ClientException;
 
 
*********
object 删除
 
    VoidResult deleteObject(String var1, String var2) throws OSSException, ClientException;
    VoidResult deleteObject(GenericRequest var1) throws OSSException, ClientException;
 
    DeleteObjectsResult deleteObjects(DeleteObjectsRequest var1) throws OSSException, ClientException;
 
 
*********
object 是否存在
 
    boolean doesObjectExist(String var1, String var2) throws OSSException, ClientException;
    boolean doesObjectExist(GenericRequest var1) throws OSSException, ClientException;
    boolean doesObjectExist(String var1, String var2, boolean var3);
    boolean doesObjectExist(GenericRequest var1, boolean var2) throws OSSException, ClientException;
 
 
*********
object 修复
 
    RestoreObjectResult restoreObject(String var1, String var2) throws OSSException, ClientException;
    RestoreObjectResult restoreObject(GenericRequest var1) throws OSSException, ClientException;
    RestoreObjectResult restoreObject(String var1, String var2, RestoreConfiguration var3) throws OSSException, ClientException;
    RestoreObjectResult restoreObject(RestoreObjectRequest var1) throws OSSException, ClientException;