HeadObjectRequest (Aliyun OSS SDK for Java 2.8.2 API)

```
public class HeadObjectRequest
extends WebServiceRequest
```
Options for checking if the object key exists under the specified bucket.

构造器
构造器和说明
`HeadObjectRequest(String bucketName, String key)`

方法
限定符和类型	方法和说明
`String`	`getBucketName()`
`String`	`getKey()`
`List<String>`	`getMatchingETagConstraints()`
`Date`	`getModifiedSinceConstraint()`
`List<String>`	`getNonmatchingETagConstraints()`
`Date`	`getUnmodifiedSinceConstraint()`
`void`	`setBucketName(String bucketName)`
`void`	`setKey(String key)`
`void`	`setMatchingETagConstraints(List<String> matchingETagConstraints)`
`void`	`setModifiedSinceConstraint(Date modifiedSinceConstraint)`
`void`	`setNonmatchingETagConstraints(List<String> nonmatchingETagConstraints)`
`void`	`setUnmodifiedSinceConstraint(Date unmodifiedSinceConstraint)`

public HeadObjectRequest(String bucketName,
                 String key)

public void setBucketName(String bucketName)

public List<String> getMatchingETagConstraints()

public void setMatchingETagConstraints(List<String> matchingETagConstraints)

public List<String> getNonmatchingETagConstraints()

public void setNonmatchingETagConstraints(List<String> nonmatchingETagConstraints)

public Date getUnmodifiedSinceConstraint()

public void setUnmodifiedSinceConstraint(Date unmodifiedSinceConstraint)

public Date getModifiedSinceConstraint()

public void setModifiedSinceConstraint(Date modifiedSinceConstraint)

类 HeadObjectRequest