import com.sun.xml.internal.messaging.saaj.packaging.mime.internet.MimePartDataSource; //导入依赖的package包/类
public DataHandler getDataHandler() throws SOAPException {
    if (mimePart != null) {
        //return an inputstream
        return new DataHandler(new DataSource() {

            public InputStream getInputStream() throws IOException {
                return mimePart.read();
            }

            public OutputStream getOutputStream() throws IOException {
                throw new UnsupportedOperationException("getOutputStream cannot be supported : You have enabled LazyAttachments Option");
            }

            public String getContentType() {
                return mimePart.getContentType();
            }

            public String getName() {
                return "MIMEPart Wrapper DataSource";
            }
        });
    }
    if (dataHandler == null) {
        if (rawContent != null) {
            return new DataHandler(new MimePartDataSource(rawContent));
        }
        log.severe("SAAJ0502.soap.no.handler.for.attachment");
        throw new SOAPExceptionImpl("No data handler associated with this attachment");
    }
    return dataHandler;
}
 

import com.sun.xml.internal.messaging.saaj.packaging.mime.internet.MimePartDataSource; //导入依赖的package包/类
@Override
public DataHandler getDataHandler() throws SOAPException {
    if (mimePart != null) {
        //return an inputstream
        return new DataHandler(new DataSource() {

            @Override
            public InputStream getInputStream() throws IOException {
                return mimePart.read();
            }

            @Override
            public OutputStream getOutputStream() throws IOException {
                throw new UnsupportedOperationException("getOutputStream cannot be supported : You have enabled LazyAttachments Option");
            }

            @Override
            public String getContentType() {
                return mimePart.getContentType();
            }

            @Override
            public String getName() {
                return "MIMEPart Wrapper DataSource";
            }
        });
    }
    if (dataHandler == null) {
        if (rawContent != null) {
            return new DataHandler(new MimePartDataSource(rawContent));
        }
        log.severe("SAAJ0502.soap.no.handler.for.attachment");
        throw new SOAPExceptionImpl("No data handler associated with this attachment");
    }
    return dataHandler;
}