java.lang.Object
- jakarta.mail.BodyPart
- - jakarta.mail.internet.MimeBodyPart

All Implemented Interfaces:

MimePart, Part

Direct Known Subclasses:

PreencodedMimeBodyPart
```
public class MimeBodyPart
extends BodyPart
implements MimePart
```
This class represents a MIME body part. It implements the BodyPart abstract class and the MimePart interface. MimeBodyParts are contained in MimeMultipart objects.
MimeBodyPart uses the InternetHeaders class to parse and store the headers of that body part.
A note on RFC 822 and MIME headers
RFC 822 header fields must contain only US-ASCII characters. MIME allows non ASCII characters to be present in certain portions of certain headers, by encoding those characters. RFC 2047 specifies the rules for doing this. The MimeUtility class provided in this package can be used to to achieve this. Callers of the setHeader, addHeader, and addHeaderLine methods are responsible for enforcing the MIME requirements for the specified headers. In addition, these header fields must be folded (wrapped) before being sent if they exceed the line length limitation for the transport (1000 bytes for SMTP). Received headers may have been folded. The application is responsible for folding and unfolding headers as appropriate.

Author:

John Mani, Bill Shannon, Kanwar Oberoi

See Also:

Part, MimePart, MimeUtility

Field Summary

Fields
Modifier and Type	Field	Description
`protected java.lang.Object`	`cachedContent`	If our content is a Multipart of Message object, we save it the first time it's created by parsing a stream so that changes to the contained objects will not be lost.
`protected byte[]`	`content`	Byte array that holds the bytes of the content of this Part.
`protected java.io.InputStream`	`contentStream`	If the data for this body part was supplied by an InputStream that implements the SharedInputStream interface, `contentStream` is another such stream representing the content of this body part.
`protected jakarta.activation.DataHandler`	`dh`	The DataHandler object representing this Part's content.
`protected InternetHeaders`	`headers`	The InternetHeaders object that stores all the headers of this body part.

Fields inherited from class jakarta.mail.BodyPart
parent, streamProvider

Fields inherited from interface jakarta.mail.Part
ATTACHMENT, INLINE

Constructor Summary

Constructors
Constructor	Description
`MimeBodyPart()`	An empty MimeBodyPart object is created.
`MimeBodyPart(InternetHeaders headers, byte[] content)`	Constructs a MimeBodyPart using the given header and content bytes.
`MimeBodyPart(java.io.InputStream is)`	Constructs a MimeBodyPart by reading and parsing the data from the specified input stream.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`addHeader(java.lang.String name, java.lang.String value)`	Add this value to the existing values for this header_name.
`void`	`addHeaderLine(java.lang.String line)`	Add a header line to this body part
`void`	`attachFile(java.io.File file)`	Use the specified file to provide the data for this part.
`void`	`attachFile(java.io.File file, java.lang.String contentType, java.lang.String encoding)`	Use the specified file with the specified Content-Type and Content-Transfer-Encoding to provide the data for this part.
`void`	`attachFile(java.lang.String file)`	Use the specified file to provide the data for this part.
`void`	`attachFile(java.lang.String file, java.lang.String contentType, java.lang.String encoding)`	Use the specified file with the specified Content-Type and Content-Transfer-Encoding to provide the data for this part.
`java.util.Enumeration<java.lang.String>`	`getAllHeaderLines()`	Get all header lines as an Enumeration of Strings.
`java.util.Enumeration<Header>`	`getAllHeaders()`	Return all the headers from this Message as an Enumeration of Header objects.
`java.lang.Object`	`getContent()`	Return the content as a Java object.
`java.lang.String`	`getContentID()`	Returns the value of the "Content-ID" header field.
`java.lang.String[]`	`getContentLanguage()`	Get the languages specified in the Content-Language header of this MimePart.
`java.lang.String`	`getContentMD5()`	Return the value of the "Content-MD5" header field.
`protected java.io.InputStream`	`getContentStream()`	Produce the raw bytes of the content.
`java.lang.String`	`getContentType()`	Returns the value of the RFC 822 "Content-Type" header field.
`jakarta.activation.DataHandler`	`getDataHandler()`	Return a DataHandler for this body part's content.
`java.lang.String`	`getDescription()`	Returns the "Content-Description" header field of this body part.
`java.lang.String`	`getDisposition()`	Returns the disposition from the "Content-Disposition" header field.
`java.lang.String`	`getEncoding()`	Returns the content transfer encoding from the "Content-Transfer-Encoding" header field.
`java.lang.String`	`getFileName()`	Get the filename associated with this body part.
`java.lang.String[]`	`getHeader(java.lang.String name)`	Get all the headers for this header_name.
`java.lang.String`	`getHeader(java.lang.String name, java.lang.String delimiter)`	Get all the headers for this header name, returned as a single String, with headers separated by the delimiter.
`java.io.InputStream`	`getInputStream()`	Return a decoded input stream for this body part's "content".
`int`	`getLineCount()`	Return the number of lines for the content of this Part.
`java.util.Enumeration<java.lang.String>`	`getMatchingHeaderLines(java.lang.String[] names)`	Get matching header lines as an Enumeration of Strings.
`java.util.Enumeration<Header>`	`getMatchingHeaders(java.lang.String[] names)`	Return matching headers from this Message as an Enumeration of Header objects.
`java.util.Enumeration<java.lang.String>`	`getNonMatchingHeaderLines(java.lang.String[] names)`	Get non-matching header lines as an Enumeration of Strings.
`java.util.Enumeration<Header>`	`getNonMatchingHeaders(java.lang.String[] names)`	Return non-matching headers from this Message as an Enumeration of Header objects.
`java.io.InputStream`	`getRawInputStream()`	Return an InputStream to the raw data with any Content-Transfer-Encoding intact.
`int`	`getSize()`	Return the size of the content of this body part in bytes.
`boolean`	`isMimeType(java.lang.String mimeType)`	Is this Part of the specified MIME type? This method compares only the `primaryType` and `subType`.
`void`	`removeHeader(java.lang.String name)`	Remove all headers with this name.
`void`	`saveFile(java.io.File file)`	Save the contents of this part in the specified file.
`void`	`saveFile(java.lang.String file)`	Save the contents of this part in the specified file.
`void`	`setContent(Multipart mp)`	This method sets the body part's content to a Multipart object.
`void`	`setContent(java.lang.Object o, java.lang.String type)`	A convenience method for setting this body part's content.
`void`	`setContentID(java.lang.String cid)`	Set the "Content-ID" header field of this body part.
`void`	`setContentLanguage(java.lang.String[] languages)`	Set the Content-Language header of this MimePart.
`void`	`setContentMD5(java.lang.String md5)`	Set the "Content-MD5" header field of this body part.
`void`	`setDataHandler(jakarta.activation.DataHandler dh)`	This method provides the mechanism to set this body part's content.
`void`	`setDescription(java.lang.String description)`	Set the "Content-Description" header field for this body part.
`void`	`setDescription(java.lang.String description, java.lang.String charset)`	Set the "Content-Description" header field for this body part.
`void`	`setDisposition(java.lang.String disposition)`	Set the disposition in the "Content-Disposition" header field of this body part.
`void`	`setFileName(java.lang.String filename)`	Set the filename associated with this body part, if possible.
`void`	`setHeader(java.lang.String name, java.lang.String value)`	Set the value for this header_name.
`void`	`setText(java.lang.String text)`	Convenience method that sets the given String as this part's content, with a MIME type of "text/plain".
`void`	`setText(java.lang.String text, java.lang.String charset)`	Convenience method that sets the given String as this part's content, with a MIME type of "text/plain" and the specified charset.
`void`	`setText(java.lang.String text, java.lang.String charset, java.lang.String subtype)`	Convenience method that sets the given String as this part's content, with a primary MIME type of "text" and the specified MIME subtype.
`protected void`	`updateHeaders()`	Examine the content of this body part and update the appropriate MIME headers.
`void`	`writeTo(java.io.OutputStream os)`	Output the body part as an RFC 822 format stream.

Methods inherited from class jakarta.mail.BodyPart
getParent

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - dh
```
protected jakarta.activation.DataHandler dh
```
    The DataHandler object representing this Part's content.
  - content
```
protected byte[] content
```
    Byte array that holds the bytes of the content of this Part.
  - contentStream
```
protected java.io.InputStream contentStream
```
    If the data for this body part was supplied by an InputStream that implements the SharedInputStream interface, contentStream is another such stream representing the content of this body part. In this case, content will be null.
  - headers
```
protected InternetHeaders headers
```
    The InternetHeaders object that stores all the headers of this body part.
  - cachedContent
```
protected java.lang.Object cachedContent
```
    If our content is a Multipart of Message object, we save it the first time it's created by parsing a stream so that changes to the contained objects will not be lost. If this field is not null, it's return by the getContent() method. The getContent() method sets this field if it would return a Multipart or MimeMessage object. This field is is cleared by the setDataHandler(jakarta.activation.DataHandler) method.
- Constructor Detail
  - MimeBodyPart
```
public MimeBodyPart()
```
    An empty MimeBodyPart object is created. This body part maybe filled in by a client constructing a multipart message.
  - MimeBodyPart
```
public MimeBodyPart(java.io.InputStream is)
             throws MessagingException
```
    Constructs a MimeBodyPart by reading and parsing the data from the specified input stream. The parser consumes data till the end of the given input stream. The input stream must start at the beginning of a valid MIME body part and must terminate at the end of that body part.
    Note that the "boundary" string that delimits body parts must not be included in the input stream. The intention is that the MimeMultipart parser will extract each body part's bytes from a multipart stream and feed them into this constructor, without the delimiter strings.
    
    Parameters:
    
    is - the body part Input Stream
    
    Throws:
    
    MessagingException - for failures
  - MimeBodyPart
```
public MimeBodyPart(InternetHeaders headers,
                    byte[] content)
             throws MessagingException
```
    Constructs a MimeBodyPart using the given header and content bytes.
    Used by providers.
    
    Parameters:
    
    headers - The header of this part
    
    content - bytes representing the body of this part.
    
    Throws:
    
    MessagingException - for failures
- Method Detail
  - getSize
```
public int getSize()
            throws MessagingException
```
    Return the size of the content of this body part in bytes. Return -1 if the size cannot be determined.
    Note that this number may not be an exact measure of the content size and may or may not account for any transfer encoding of the content.
    This implementation returns the size of the content array (if not null), or, if contentStream is not null, and the available method returns a positive number, it returns that number as the size. Otherwise, it returns -1.
    
    Specified by:
    
    getSize in interface Part
    
    Returns:
    
    size in bytes, or -1 if not known
    
    Throws:
    
    MessagingException - for failures
  - getLineCount
```
public int getLineCount()
                 throws MessagingException
```
    Return the number of lines for the content of this Part. Return -1 if this number cannot be determined.
    Note that this number may not be an exact measure of the content length and may or may not account for any transfer encoding of the content.
    This implementation returns -1.
    
    Specified by:
    
    getLineCount in interface Part
    
    Returns:
    
    number of lines, or -1 if not known
    
    Throws:
    
    MessagingException - for failures
  - getContentType
```
public java.lang.String getContentType()
                                throws MessagingException
```
    Returns the value of the RFC 822 "Content-Type" header field. This represents the content type of the content of this body part. This value must not be null. If this field is unavailable, "text/plain" should be returned.
    This implementation uses getHeader(name) to obtain the requisite header field.
    
    Specified by:
    
    getContentType in interface Part
    
    Returns:
    
    Content-Type of this body part
    
    Throws:
    
    MessagingException - for failures
    
    See Also:
    
    DataHandler
  - isMimeType
```
public boolean isMimeType(java.lang.String mimeType)
                   throws MessagingException
```
    Is this Part of the specified MIME type? This method compares only the primaryType and subType. The parameters of the content types are ignored.
    For example, this method will return true when comparing a Part of content type "text/plain" with "text/plain; charset=foobar".
    If the subType of mimeType is the special character '*', then the subtype is ignored during the comparison.
    
    Specified by:
    
    isMimeType in interface Part
    
    Parameters:
    
    mimeType - the MIME type to test
    
    Returns:
    
    true if this part is of the specified type
    
    Throws:
    
    MessagingException - for failures
  - getDisposition
```
public java.lang.String getDisposition()
                                throws MessagingException
```
    Returns the disposition from the "Content-Disposition" header field. This represents the disposition of this part. The disposition describes how the part should be presented to the user.
    If the Content-Disposition field is unavailable, null is returned.
    This implementation uses getHeader(name) to obtain the requisite header field.
    
    Specified by:
    
    getDisposition in interface Part
    
    Returns:
    
    disposition of this part, or null if unknown
    
    Throws:
    
    MessagingException - for failures
    
    See Also:
    
    headers
  - setDisposition
```
public void setDisposition(java.lang.String disposition)
                    throws MessagingException
```
    Set the disposition in the "Content-Disposition" header field of this body part. If the disposition is null, any existing "Content-Disposition" header field is removed.
    
    Specified by:
    
    setDisposition in interface Part
    
    Parameters:
    
    disposition - disposition of this part
    
    Throws:
    
    IllegalWriteException - if the underlying implementation does not support modification
    
    java.lang.IllegalStateException - if this body part is obtained from a READ_ONLY folder.
    
    MessagingException - for other failures
    
    See Also:
    
    Part.ATTACHMENT, Part.INLINE, Part.setFileName(java.lang.String)
  - getEncoding
```
public java.lang.String getEncoding()
                             throws MessagingException
```
    Returns the content transfer encoding from the "Content-Transfer-Encoding" header field. Returns null if the header is unavailable or its value is absent.
    This implementation uses getHeader(name) to obtain the requisite header field.
    
    Specified by:
    
    getEncoding in interface MimePart
    
    Returns:
    
    content-transfer-encoding
    
    Throws:
    
    MessagingException - for failures
    
    See Also:
    
    headers
  - getContentID
```
public java.lang.String getContentID()
                              throws MessagingException
```
    Returns the value of the "Content-ID" header field. Returns null if the field is unavailable or its value is absent.
    This implementation uses getHeader(name) to obtain the requisite header field.
    
    Specified by:
    
    getContentID in interface MimePart
    
    Returns:
    
    content-ID
    
    Throws:
    
    MessagingException - for failures
  - setContentID
```
public void setContentID(java.lang.String cid)
                  throws MessagingException
```
    Set the "Content-ID" header field of this body part. If the cid parameter is null, any existing "Content-ID" is removed.
    
    Parameters:
    
    cid - the Content-ID
    
    Throws:
    
    IllegalWriteException - if the underlying implementation does not support modification
    
    java.lang.IllegalStateException - if this body part is obtained from a READ_ONLY folder.
    
    MessagingException - for other failures
  - getContentMD5
```
public java.lang.String getContentMD5()
                               throws MessagingException
```
    Return the value of the "Content-MD5" header field. Returns null if this field is unavailable or its value is absent.
    This implementation uses getHeader(name) to obtain the requisite header field.
    
    Specified by:
    
    getContentMD5 in interface MimePart
    
    Returns:
    
    content-MD5
    
    Throws:
    
    MessagingException - for failures
  - setContentMD5
```
public void setContentMD5(java.lang.String md5)
                   throws MessagingException
```
    Set the "Content-MD5" header field of this body part.
    
    Specified by:
    
    setContentMD5 in interface MimePart
    
    Parameters:
    
    md5 - the MD5 value
    
    Throws:
    
    IllegalWriteException - if the underlying implementation does not support modification
    
    java.lang.IllegalStateException - if this body part is obtained from a READ_ONLY folder.
    
    MessagingException
  - getContentLanguage
```
public java.lang.String[] getContentLanguage()
                                      throws MessagingException
```
    Get the languages specified in the Content-Language header of this MimePart. The Content-Language header is defined by RFC 1766. Returns null if this header is not available or its value is absent.
    This implementation uses getHeader(name) to obtain the requisite header field.
    
    Specified by:
    
    getContentLanguage in interface MimePart
    
    Returns:
    
    array of content language strings
    
    Throws:
    
    MessagingException - for failures
  - setContentLanguage
```
public void setContentLanguage(java.lang.String[] languages)
                        throws MessagingException
```
    Set the Content-Language header of this MimePart. The Content-Language header is defined by RFC 1766.
    
    Specified by:
    
    setContentLanguage in interface MimePart
    
    Parameters:
    
    languages - array of language tags
    
    Throws:
    
    IllegalWriteException - if the underlying implementation does not support modification
    
    MessagingException
  - getDescription
```
public java.lang.String getDescription()
                                throws MessagingException
```
    Returns the "Content-Description" header field of this body part. This typically associates some descriptive information with this part. Returns null if this field is unavailable or its value is absent.
    If the Content-Description field is encoded as per RFC 2047, it is decoded and converted into Unicode. If the decoding or conversion fails, the raw data is returned as is.
    This implementation uses getHeader(name) to obtain the requisite header field.
    
    Specified by:
    
    getDescription in interface Part
    
    Returns:
    
    content description
    
    Throws:
    
    MessagingException - for failures
  - setDescription
```
public void setDescription(java.lang.String description)
                    throws MessagingException
```
    Set the "Content-Description" header field for this body part. If the description parameter is null, then any existing "Content-Description" fields are removed.
    If the description contains non US-ASCII characters, it will be encoded using the platform's default charset. If the description contains only US-ASCII characters, no encoding is done and it is used as is.
    Note that if the charset encoding process fails, a MessagingException is thrown, and an UnsupportedEncodingException is included in the chain of nested exceptions within the MessagingException.
    
    Specified by:
    
    setDescription in interface Part
    
    Parameters:
    
    description - content description
    
    Throws:
    
    MessagingException - otherwise; an UnsupportedEncodingException may be included in the exception chain if the charset conversion fails.
    
    IllegalWriteException - if the underlying implementation does not support modification
    
    java.lang.IllegalStateException - if this body part is obtained from a READ_ONLY folder.
  - setDescription
```
public void setDescription(java.lang.String description,
                           java.lang.String charset)
                    throws MessagingException
```
    Set the "Content-Description" header field for this body part. If the description parameter is null, then any existing "Content-Description" fields are removed.
    If the description contains non US-ASCII characters, it will be encoded using the specified charset. If the description contains only US-ASCII characters, no encoding is done and it is used as is.
    Note that if the charset encoding process fails, a MessagingException is thrown, and an UnsupportedEncodingException is included in the chain of nested exceptions within the MessagingException.
    
    Parameters:
    
    description - Description
    
    charset - Charset for encoding
    
    Throws:
    
    MessagingException - otherwise; an UnsupportedEncodingException may be included in the exception chain if the charset conversion fails.
    
    IllegalWriteException - if the underlying implementation does not support modification
    
    java.lang.IllegalStateException - if this body part is obtained from a READ_ONLY folder.
  - getFileName
```
public java.lang.String getFileName()
                             throws MessagingException
```
    Get the filename associated with this body part.
    Returns the value of the "filename" parameter from the "Content-Disposition" header field of this body part. If its not available, returns the value of the "name" parameter from the "Content-Type" header field of this body part. Returns null if both are absent.
    If the mail.mime.decodefilename System property is set to true, the MimeUtility.decodeText method will be used to decode the filename. While such encoding is not supported by the MIME spec, many mailers use this technique to support non-ASCII characters in filenames. The default value of this property is false.
    
    Specified by:
    
    getFileName in interface Part
    
    Returns:
    
    filename
    
    Throws:
    
    MessagingException - for failures
  - setFileName
```
public void setFileName(java.lang.String filename)
                 throws MessagingException
```
    Set the filename associated with this body part, if possible.
    Sets the "filename" parameter of the "Content-Disposition" header field of this body part. For compatibility with older mailers, the "name" parameter of the "Content-Type" header is also set.
    If the mail.mime.encodefilename System property is set to true, the MimeUtility.encodeText method will be used to encode the filename. While such encoding is not supported by the MIME spec, many mailers use this technique to support non-ASCII characters in filenames. The default value of this property is false.
    
    Specified by:
    
    setFileName in interface Part
    
    Parameters:
    
    filename - the file name
    
    Throws:
    
    IllegalWriteException - if the underlying implementation does not support modification
    
    java.lang.IllegalStateException - if this body part is obtained from a READ_ONLY folder.
    
    MessagingException - for other failures
  - getInputStream
```
public java.io.InputStream getInputStream()
                                   throws java.io.IOException,
                                          MessagingException
```
    Return a decoded input stream for this body part's "content".
    This implementation obtains the input stream from the DataHandler. That is, it invokes getDataHandler().getInputStream();
    
    Specified by:
    
    getInputStream in interface Part
    
    Returns:
    
    an InputStream
    
    Throws:
    
    java.io.IOException - this is typically thrown by the DataHandler. Refer to the documentation for jakarta.activation.DataHandler for more details.
    
    MessagingException - for other failures
    
    See Also:
    
    getContentStream(), DataHandler.getInputStream()
  - getContentStream
```
protected java.io.InputStream getContentStream()
                                        throws MessagingException
```
    Produce the raw bytes of the content. This method is used when creating a DataHandler object for the content. Subclasses that can provide a separate input stream for just the Part content might want to override this method.
    
    Returns:
    
    an InputStream containing the raw bytes
    
    Throws:
    
    MessagingException - for failures
    
    See Also:
    
    content, MimeMessage.getContentStream()
  - getRawInputStream
```
public java.io.InputStream getRawInputStream()
                                      throws MessagingException
```
    Return an InputStream to the raw data with any Content-Transfer-Encoding intact. This method is useful if the "Content-Transfer-Encoding" header is incorrect or corrupt, which would prevent the getInputStream method or getContent method from returning the correct data. In such a case the application may use this method and attempt to decode the raw data itself.
    This implementation simply calls the getContentStream method.
    
    Returns:
    
    an InputStream containing the raw bytes
    
    Throws:
    
    MessagingException - for failures
    
    See Also:
    
    getInputStream(), getContentStream()
  - getDataHandler
```
public jakarta.activation.DataHandler getDataHandler()
                                              throws MessagingException
```
    Return a DataHandler for this body part's content.
    The implementation provided here works just like the the implementation in MimeMessage.
    
    Specified by:
    
    getDataHandler in interface Part
    
    Returns:
    
    DataHandler for the content
    
    Throws:
    
    MessagingException - for failures
    
    See Also:
    
    MimeMessage.getDataHandler()
  - getContent
```
public java.lang.Object getContent()
                            throws java.io.IOException,
                                   MessagingException
```
    Return the content as a Java object. The type of the object returned is of course dependent on the content itself. For example, the native format of a text/plain content is usually a String object. The native format for a "multipart" content is always a Multipart subclass. For content types that are unknown to the DataHandler system, an input stream is returned as the content.
    This implementation obtains the content from the DataHandler. That is, it invokes getDataHandler().getContent(); If the content is a Multipart or Message object and was created by parsing a stream, the object is cached and returned in subsequent calls so that modifications to the content will not be lost.
    
    Specified by:
    
    getContent in interface Part
    
    Returns:
    
    Object
    
    Throws:
    
    java.io.IOException - this is typically thrown by the DataHandler. Refer to the documentation for jakarta.activation.DataHandler for more details.
    
    MessagingException - for other failures
    
    See Also:
    
    DataHandler.getContent()
  - setDataHandler
```
public void setDataHandler(jakarta.activation.DataHandler dh)
                    throws MessagingException
```
    This method provides the mechanism to set this body part's content. The given DataHandler object should wrap the actual content.
    
    Specified by:
    
    setDataHandler in interface Part
    
    Parameters:
    
    dh - The DataHandler for the content
    
    Throws:
    
    IllegalWriteException - if the underlying implementation does not support modification
    
    java.lang.IllegalStateException - if this body part is obtained from a READ_ONLY folder.
    
    MessagingException - for other failures
  - setContent
```
public void setContent(java.lang.Object o,
                       java.lang.String type)
                throws MessagingException
```
    A convenience method for setting this body part's content.
    The content is wrapped in a DataHandler object. Note that a DataContentHandler class for the specified type should be available to the Jakarta Mail implementation for this to work right. That is, to do setContent(foobar, "application/x-foobar"), a DataContentHandler for "application/x-foobar" should be installed. Refer to the Java Activation Framework for more information.
    
    Specified by:
    
    setContent in interface Part
    
    Parameters:
    
    o - the content object
    
    type - Mime type of the object
    
    Throws:
    
    IllegalWriteException - if the underlying implementation does not support modification of existing values
    
    java.lang.IllegalStateException - if this body part is obtained from a READ_ONLY folder.
    
    MessagingException - for other failures
  - setText
```
public void setText(java.lang.String text)
             throws MessagingException
```
    Convenience method that sets the given String as this part's content, with a MIME type of "text/plain". If the string contains non US-ASCII characters, it will be encoded using the platform's default charset. The charset is also used to set the "charset" parameter.
    Note that there may be a performance penalty if text is large, since this method may have to scan all the characters to determine what charset to use.
    If the charset is already known, use the setText method that takes the charset parameter.
    
    Specified by:
    
    setText in interface MimePart
    
    Specified by:
    
    setText in interface Part
    
    Parameters:
    
    text - the text content to set
    
    Throws:
    
    MessagingException - if an error occurs
    
    See Also:
    
    setText(String text, String charset)
  - setText
```
public void setText(java.lang.String text,
                    java.lang.String charset)
             throws MessagingException
```
    Convenience method that sets the given String as this part's content, with a MIME type of "text/plain" and the specified charset. The given Unicode string will be charset-encoded using the specified charset. The charset is also used to set the "charset" parameter.
    
    Specified by:
    
    setText in interface MimePart
    
    Parameters:
    
    text - the text content to set
    
    charset - the charset to use for the text
    
    Throws:
    
    MessagingException - if an error occurs
  - setText
```
public void setText(java.lang.String text,
                    java.lang.String charset,
                    java.lang.String subtype)
             throws MessagingException
```
    Convenience method that sets the given String as this part's content, with a primary MIME type of "text" and the specified MIME subtype. The given Unicode string will be charset-encoded using the specified charset. The charset is also used to set the "charset" parameter.
    
    Specified by:
    
    setText in interface MimePart
    
    Parameters:
    
    text - the text content to set
    
    charset - the charset to use for the text
    
    subtype - the MIME subtype to use (e.g., "html")
    
    Throws:
    
    MessagingException - if an error occurs
  - setContent
```
public void setContent(Multipart mp)
                throws MessagingException
```
    This method sets the body part's content to a Multipart object.
    
    Specified by:
    
    setContent in interface Part
    
    Parameters:
    
    mp - The multipart object that is the Message's content
    
    Throws:
    
    IllegalWriteException - if the underlying implementation does not support modification of existing values.
    
    java.lang.IllegalStateException - if this body part is obtained from a READ_ONLY folder.
    
    MessagingException - for other failures
  - attachFile
```
public void attachFile(java.io.File file)
                throws java.io.IOException,
                       MessagingException
```
    Use the specified file to provide the data for this part. The simple file name is used as the file name for this part and the data in the file is used as the data for this part. The encoding will be chosen appropriately for the file data. The disposition of this part is set to Part.ATTACHMENT.
    
    Parameters:
    
    file - the File object to attach
    
    Throws:
    
    java.io.IOException - errors related to accessing the file
    
    MessagingException - message related errors
  - attachFile
```
public void attachFile(java.lang.String file)
                throws java.io.IOException,
                       MessagingException
```
    Use the specified file to provide the data for this part. The simple file name is used as the file name for this part and the data in the file is used as the data for this part. The encoding will be chosen appropriately for the file data.
    
    Parameters:
    
    file - the name of the file to attach
    
    Throws:
    
    java.io.IOException - errors related to accessing the file
    
    MessagingException - message related errors
  - attachFile
```
public void attachFile(java.io.File file,
                       java.lang.String contentType,
                       java.lang.String encoding)
                throws java.io.IOException,
                       MessagingException
```
    Use the specified file with the specified Content-Type and Content-Transfer-Encoding to provide the data for this part. If contentType or encoding are null, appropriate values will be chosen. The simple file name is used as the file name for this part and the data in the file is used as the data for this part. The disposition of this part is set to Part.ATTACHMENT.
    
    Parameters:
    
    file - the File object to attach
    
    contentType - the Content-Type, or null
    
    encoding - the Content-Transfer-Encoding, or null
    
    Throws:
    
    java.io.IOException - errors related to accessing the file
    
    MessagingException - message related errors
  - attachFile
```
public void attachFile(java.lang.String file,
                       java.lang.String contentType,
                       java.lang.String encoding)
                throws java.io.IOException,
                       MessagingException
```
    Use the specified file with the specified Content-Type and Content-Transfer-Encoding to provide the data for this part. If contentType or encoding are null, appropriate values will be chosen. The simple file name is used as the file name for this part and the data in the file is used as the data for this part. The disposition of this part is set to Part.ATTACHMENT.
    
    Parameters:
    
    file - the name of the file
    
    contentType - the Content-Type, or null
    
    encoding - the Content-Transfer-Encoding, or null
    
    Throws:
    
    java.io.IOException - errors related to accessing the file
    
    MessagingException - message related errors
  - saveFile
```
public void saveFile(java.io.File file)
              throws java.io.IOException,
                     MessagingException
```
    Save the contents of this part in the specified file. The content is decoded and saved, without any of the MIME headers.
    
    Parameters:
    
    file - the File object to write to
    
    Throws:
    
    java.io.IOException - errors related to accessing the file
    
    MessagingException - message related errors
  - saveFile
```
public void saveFile(java.lang.String file)
              throws java.io.IOException,
                     MessagingException
```
    Save the contents of this part in the specified file. The content is decoded and saved, without any of the MIME headers.
    
    Parameters:
    
    file - the name of the file to write to
    
    Throws:
    
    java.io.IOException - errors related to accessing the file
    
    MessagingException - message related errors
  - writeTo
```
public void writeTo(java.io.OutputStream os)
             throws java.io.IOException,
                    MessagingException
```
    Output the body part as an RFC 822 format stream.
    
    Specified by:
    
    writeTo in interface Part
    
    Parameters:
    
    os - the stream to write to
    
    Throws:
    
    java.io.IOException - if an error occurs writing to the stream or if an error is generated by the jakarta.activation layer.
    
    MessagingException - for other failures
    
    See Also:
    
    DataHandler.writeTo(java.io.OutputStream)
  - getHeader
```
public java.lang.String[] getHeader(java.lang.String name)
                             throws MessagingException
```
    Get all the headers for this header_name. Note that certain headers may be encoded as per RFC 2047 if they contain non US-ASCII characters and these should be decoded.
    
    Specified by:
    
    getHeader in interface Part
    
    Parameters:
    
    name - name of header
    
    Returns:
    
    array of headers
    
    Throws:
    
    MessagingException - for failures
    
    See Also:
    
    MimeUtility
  - getHeader
```
public java.lang.String getHeader(java.lang.String name,
                                  java.lang.String delimiter)
                           throws MessagingException
```
    Get all the headers for this header name, returned as a single String, with headers separated by the delimiter. If the delimiter is null, only the first header is returned.
    
    Specified by:
    
    getHeader in interface MimePart
    
    Parameters:
    
    name - the name of this header
    
    delimiter - delimiter between fields in returned string
    
    Returns:
    
    the value fields for all headers with this name
    
    Throws:
    
    MessagingException - for failures
  - setHeader
```
public void setHeader(java.lang.String name,
                      java.lang.String value)
               throws MessagingException
```
    Set the value for this header_name. Replaces all existing header values with this new value. Note that RFC 822 headers must contain only US-ASCII characters, so a header that contains non US-ASCII characters must be encoded as per the rules of RFC 2047.
    
    Specified by:
    
    setHeader in interface Part
    
    Parameters:
    
    name - header name
    
    value - header value
    
    Throws:
    
    IllegalWriteException - if the underlying implementation does not support modification of existing values
    
    MessagingException - for other failures
    
    See Also:
    
    MimeUtility
  - addHeader
```
public void addHeader(java.lang.String name,
                      java.lang.String value)
               throws MessagingException
```
    Add this value to the existing values for this header_name. Note that RFC 822 headers must contain only US-ASCII characters, so a header that contains non US-ASCII characters must be encoded as per the rules of RFC 2047.
    
    Specified by:
    
    addHeader in interface Part
    
    Parameters:
    
    name - header name
    
    value - header value
    
    Throws:
    
    IllegalWriteException - if the underlying implementation does not support modification of existing values
    
    MessagingException - for other failures
    
    See Also:
    
    MimeUtility
  - removeHeader
```
public void removeHeader(java.lang.String name)
                  throws MessagingException
```
    Remove all headers with this name.
    
    Specified by:
    
    removeHeader in interface Part
    
    Parameters:
    
    name - the name of this header
    
    Throws:
    
    IllegalWriteException - if the underlying implementation does not support modification of existing values
    
    MessagingException - for other failures
  - getAllHeaders
```
public java.util.Enumeration<Header> getAllHeaders()
                                            throws MessagingException
```
    Return all the headers from this Message as an Enumeration of Header objects.
    
    Specified by:
    
    getAllHeaders in interface Part
    
    Returns:
    
    enumeration of Header objects
    
    Throws:
    
    MessagingException - for failures
  - getMatchingHeaders
```
public java.util.Enumeration<Header> getMatchingHeaders(java.lang.String[] names)
                                                 throws MessagingException
```
    Return matching headers from this Message as an Enumeration of Header objects.
    
    Specified by:
    
    getMatchingHeaders in interface Part
    
    Parameters:
    
    names - the headers to match
    
    Returns:
    
    enumeration of Header objects
    
    Throws:
    
    MessagingException - for failures
  - getNonMatchingHeaders
```
public java.util.Enumeration<Header> getNonMatchingHeaders(java.lang.String[] names)
                                                    throws MessagingException
```
    Return non-matching headers from this Message as an Enumeration of Header objects.
    
    Specified by:
    
    getNonMatchingHeaders in interface Part
    
    Parameters:
    
    names - the headers to not match
    
    Returns:
    
    enumeration of Header objects
    
    Throws:
    
    MessagingException - for failures
  - addHeaderLine
```
public void addHeaderLine(java.lang.String line)
                   throws MessagingException
```
    Add a header line to this body part
    
    Specified by:
    
    addHeaderLine in interface MimePart
    
    Parameters:
    
    line - the line to add
    
    Throws:
    
    IllegalWriteException - if the underlying implementation does not support modification
    
    MessagingException - for other failures
  - getAllHeaderLines
```
public java.util.Enumeration<java.lang.String> getAllHeaderLines()
                                                          throws MessagingException
```
    Get all header lines as an Enumeration of Strings. A Header line is a raw RFC 822 header line, containing both the "name" and "value" field.
    
    Specified by:
    
    getAllHeaderLines in interface MimePart
    
    Returns:
    
    an Enumeration of Strings
    
    Throws:
    
    MessagingException - for failures
  - getMatchingHeaderLines
```
public java.util.Enumeration<java.lang.String> getMatchingHeaderLines(java.lang.String[] names)
                                                               throws MessagingException
```
    Get matching header lines as an Enumeration of Strings. A Header line is a raw RFC 822 header line, containing both the "name" and "value" field.
    
    Specified by:
    
    getMatchingHeaderLines in interface MimePart
    
    Parameters:
    
    names - the headers to return
    
    Returns:
    
    an Enumeration of Strings
    
    Throws:
    
    MessagingException - for failures
  - getNonMatchingHeaderLines
```
public java.util.Enumeration<java.lang.String> getNonMatchingHeaderLines(java.lang.String[] names)
                                                                  throws MessagingException
```
    Get non-matching header lines as an Enumeration of Strings. A Header line is a raw RFC 822 header line, containing both the "name" and "value" field.
    
    Specified by:
    
    getNonMatchingHeaderLines in interface MimePart
    
    Parameters:
    
    names - the headers to not return
    
    Returns:
    
    an Enumeration of Strings
    
    Throws:
    
    MessagingException - for failures
  - updateHeaders
```
protected void updateHeaders()
                      throws MessagingException
```
    Examine the content of this body part and update the appropriate MIME headers. Typical headers that get set here are Content-Type and Content-Transfer-Encoding. Headers might need to be updated in two cases:
    - A message being crafted by a mail application will certainly need to activate this method at some point to fill up its internal headers.
    - A message read in from a Store will have obtained all its headers from the store, and so doesn't need this. However, if this message is editable and if any edits have been made to either the content or message structure, we might need to resync our headers.
    In both cases this method is typically called by the Message.saveChanges method.
    If the cachedContent field is not null (that is, it references a Multipart or Message object), then that object is used to set a new DataHandler, any stream data used to create this object is discarded, and the cachedContent field is cleared.
    
    Throws:
    
    MessagingException - for failures

Class MimeBodyPart

Field Summary

Fields inherited from class jakarta.mail.BodyPart

Fields inherited from interface jakarta.mail.Part

Constructor Summary

Method Summary

Methods inherited from class jakarta.mail.BodyPart

Methods inherited from class java.lang.Object

Field Detail

dh

content

contentStream

headers

cachedContent

Constructor Detail

MimeBodyPart

MimeBodyPart

MimeBodyPart

Method Detail

getSize

getLineCount

getContentType

isMimeType

getDisposition

setDisposition

getEncoding

getContentID

setContentID

getContentMD5

setContentMD5

getContentLanguage

setContentLanguage

getDescription

setDescription

setDescription

getFileName

setFileName

getInputStream

getContentStream

getRawInputStream

getDataHandler

getContent

setDataHandler

setContent

setText

setText

setText

setContent

attachFile

attachFile

attachFile

attachFile

saveFile

saveFile

writeTo

getHeader

getHeader

setHeader

addHeader

removeHeader

getAllHeaders

getMatchingHeaders

getNonMatchingHeaders

addHeaderLine

getAllHeaderLines

getMatchingHeaderLines

getNonMatchingHeaderLines

updateHeaders