MimePartDataSource (Java EE 5 SDK)

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Java EE 5 SDK

深圳电信培训中心.徐海蛟老师.

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摘要: 嵌套 | 字段 | 构造器 | 方法

详细信息: 字段 | 构造器 | 方法

javax.mail.internet Class MimePartDataSource

java.lang.Object
  javax.mail.internet.MimePartDataSource

所有已实现的接口:: DataSource, MessageAware

public class MimePartDataSource
extends Object
implements DataSource, MessageAware

A utility class that implements a DataSource out of a MimePart. This class is primarily meant for service providers.

作者:: John Mani
另请参见:: MimePart, DataSource

字段摘要
`protected MimePart`	`part` The MimePart that provides the data for this DataSource.

构造器摘要
`MimePartDataSource(MimePart part)` Constructor, that constructs a DataSource from a MimePart.

方法摘要
`String`	`getContentType()` Returns the content-type of this DataSource.
`InputStream`	`getInputStream()` Returns an input stream from this MimePart.
`MessageContext`	`getMessageContext()` Return the `MessageContext` for the current part.
`String`	`getName()` DataSource method to return a name.
`OutputStream`	`getOutputStream()` DataSource method to return an output stream.

类方法继承 java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

字段详细信息

part

protected MimePart part

The MimePart that provides the data for this DataSource.

从以下版本开始:: JavaMail 1.4

构造器详细信息

MimePartDataSource

public MimePartDataSource(MimePart part)

Constructor, that constructs a DataSource from a MimePart.

方法详细信息

getInputStream

public InputStream getInputStream()
                           throws IOException

Returns an input stream from this MimePart.

This method applies the appropriate transfer-decoding, based on the Content-Transfer-Encoding attribute of this MimePart. Thus the returned input stream is a decoded stream of bytes.

This implementation obtains the raw content from the Part using the getContentStream() method and decodes it using the MimeUtility.decode() method.

规范说明:: getInputStream in interface DataSource

返回:: decoded input stream
抛出异常:: IOException
另请参见:: MimeMessage.getContentStream(), MimeBodyPart.getContentStream(), MimeUtility.decode(java.io.InputStream, java.lang.String)

getOutputStream

public OutputStream getOutputStream()
                             throws IOException

DataSource method to return an output stream.

This implementation throws the UnknownServiceException.

规范说明:: getOutputStream in interface DataSource

返回:: an OutputStream
抛出异常:: IOException

getContentType

public String getContentType()

Returns the content-type of this DataSource.

This implementation just invokes the getContentType method on the MimePart.

规范说明:: getContentType in interface DataSource

返回:: the MIME Type

getName

public String getName()

DataSource method to return a name.

This implementation just returns an empty string.

规范说明:: getName in interface DataSource

返回:: the name of the object.

getMessageContext

public MessageContext getMessageContext()

Return the MessageContext for the current part.

规范说明:: getMessageContext in interface MessageAware

从以下版本开始:: JavaMail 1.1

概述