Overview (SDK for Java)

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OBS Java SDK provides abundant APIs for object download in the following methods:

Parameter	Type	Mandatory (Yes/No)	Description
isEncodeHeaders	boolean	No	Whether to automatically encode the request header. The default value is true.
userHeaders	HashMap<String, String>	No	User's header field.
ifMatchTag	String	No	Returns the object content if the object's ETag is the same as this parameter value. Otherwise, an error is reported.
ifNoneMatchTag	String	No	Returns the object content if the object's ETag is different from this parameter value. Otherwise, an error is reported.
ifModifiedSince	Date	No	Returns the object if it has been modified since the specified time; otherwise, an error is returned.
ifUnmodifiedSince	Date	No	Returns the object if it has not been modified since the specified time; otherwise, an error is returned.
rangeStart	Long	No	Start byte for a partial download.
rangeEnd	Long	No	End byte for a partial download.
replaceMetadata	ObjectRepleaceMetadata	No	Rewrites response headers when objects are downloaded.
sseCHeader	SseCHeader	No	Information about the server-side encryption header.
versionId	String	No	Version number.