javax.mail.util
类 ByteArrayDataSource

java.lang.Object
  javax.mail.util.ByteArrayDataSource

所有已实现的接口：

DataSource

public class ByteArrayDataSource
extends Object
implements DataSource

A DataSource backed by a byte array. The byte array may be passed in directly, or may be initialized from an InputStream or a String.

从以下版本开始：

JavaMail 1.4

作者：

John Mani, Bill Shannon, Max Spivak

构造方法摘要

ByteArrayDataSource(byte[] data, String type)
Create a ByteArrayDataSource with data from the specified byte array and with the specified MIME type.

ByteArrayDataSource(InputStream is, String type)
Create a ByteArrayDataSource with data from the specified InputStream and with the specified MIME type.

ByteArrayDataSource(String data, String type)
Create a ByteArrayDataSource with data from the specified String and with the specified MIME type.

方法摘要

String	getContentType() Get the MIME content type of the data.
InputStream	getInputStream() Return an InputStream for the data.
String	getName() Get the name of the data.
OutputStream	getOutputStream() Return an OutputStream for the data.
void	setName(String name) Set the name of the data.

从类 java.lang.Object 继承的方法

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

构造方法详细信息

ByteArrayDataSource

public ByteArrayDataSource(InputStream is,
                           String type)
                    throws IOException

Create a ByteArrayDataSource with data from the specified InputStream and with the specified MIME type. The InputStream is read completely and the data is stored in a byte array.

参数：

is - the InputStream

type - the MIME type

抛出：

IOException - errors reading the stream

ByteArrayDataSource

public ByteArrayDataSource(byte[] data,
                           String type)

Create a ByteArrayDataSource with data from the specified byte array and with the specified MIME type.

参数：

data - the data

type - the MIME type

ByteArrayDataSource

public ByteArrayDataSource(String data,
                           String type)
                    throws IOException

Create a ByteArrayDataSource with data from the specified String and with the specified MIME type. The MIME type should include a charset parameter specifying the charset to be used for the string. If the parameter is not included, the default charset is used.

参数：

data - the String

type - the MIME type

抛出：

IOException - errors reading the String

方法详细信息

getInputStream

public InputStream getInputStream()
                           throws IOException

Return an InputStream for the data. Note that a new stream is returned each time this method is called.

指定者：

接口 DataSource 中的 getInputStream

返回：

the InputStream

抛出：

IOException - if no data has been set

getOutputStream

public OutputStream getOutputStream()
                             throws IOException

Return an OutputStream for the data. Writing the data is not supported; an IOException is always thrown.

指定者：

接口 DataSource 中的 getOutputStream

抛出：

IOException - always

getContentType

public String getContentType()

Get the MIME content type of the data.

指定者：

接口 DataSource 中的 getContentType

返回：

the MIME type

getName

public String getName()

Get the name of the data. By default, an empty string ("") is returned.

指定者：

接口 DataSource 中的 getName

返回：

the name of this data

setName

public void setName(String name)

Set the name of the data.

参数：

name - the name of this data