修改sdk

mall-ebtp-cloud-attachment-sdk/src/main/java/com/chinaunicom/ebtp/mall/cloud/attachment/sdk/convertor/ModelConvertor.java

@@ -78,6 +78,26 @@ public class ModelConvertor {
 		});
 	}
 
+	/**
+	 * @param json
+	 * @return
+	 */
+	public Optional<byte[]> toByteArray(String json) {
+		return Optional.ofNullable(json).map(content -> {
+			try {
+				Optional<SysStorageVO> op = tpDownPO(content);
+
+				if (op.isPresent()) {
+					return op.get().getFileStream();
+				}
+			} catch (JsonProcessingException e) {
+				log.error(json);
+				log.error(e.getMessage());
+			}
+			return null;
+		});
+	}
+
 	/**
 	 * @param json
 	 * @return

mall-ebtp-cloud-attachment-sdk/src/main/java/com/chinaunicom/ebtp/mall/cloud/attachment/sdk/vo/SysStorageVO.java

@@ -14,6 +14,9 @@ public class SysStorageVO {
 	/* 业务id */
 	private String objectId;
 
+	/* 文件流 */
+	private byte[] fileStream;
+
 	/* 文件唯一标识 */
 	private String fileName;