以下是一种可能会有所帮助的方法。
信息
以下是您将要处理的大致内容:
MIME-Version: 1.0
Content-Type: Multipart/Related;boundary=MIME_boundary;
...
--MIME_boundary
Content-Type: application/xop+xml;
...
<soap:Envelope ...
<soap:Body>...
<foo>
<photo xmlmime:contentType='image/png'>
<xop:Include xmlns:xop='http://www.w3.org/2004/08/xop/include'
href='cid:http://example.org/me.jpeg'/></m:photo>
...
--MIME_boundary
Content-Type: image/png
Content-Transfer-Encoding: binary
Content-ID: <http://example.org/me.png>
// binary octets for png
演示代码
演示
下面的代码假定您已处理消息以执行以下操作:
- 提取 XML 片段
- 提取附件并能够在 cid 上键入它们。
import java.io.File;
import javax.xml.bind.*;
public class Demo {
private static String base64 = "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";
public static void main(String[] args) throws Exception {
// Create the JAXBContext & Unmarshaller
JAXBContext jc = JAXBContext.newInstance(Foo.class);
Unmarshaller unmarshaller = jc.createUnmarshaller();
// Create a custom AttachementUnmarshaller. Populate the Map
// AttachmentUnmarshaller with the attachments keyed on the cid.
MyAttachmentUnmarshaller attachmentUnmarshaller = new MyAttachmentUnmarshaller();
attachmentUnmarshaller.getAttachments().put("cid:http://example.org/me.jpeg", DatatypeConverter.parseBase64Binary(base64));
// Set the AttachmentUnmarshaller on the Unmarshaller
unmarshaller.setAttachmentUnmarshaller(attachmentUnmarshaller);
// Unmarshal the XML piece
File xml = new File("src/forum24407360/input.xml");
Foo foo = (Foo) unmarshaller.unmarshal(xml);
}
}
我的附件解组器
下面是AttachmentUnmarshaller
外观。anAttachmentUnmarshaller
在cid中传入,负责返回对应的二进制数据。在 JAX-WS 环境中,这是自动为您处理的,但没有什么可以阻止您手动进行。您可以在此处找到有关它的更多信息: 将原始二进制数据与 XML 一起存储的最标准 Java 方式是什么?.
import java.io.*;
import java.util.*;
import javax.activation.*;
import javax.xml.bind.attachment.AttachmentUnmarshaller;
public class MyAttachmentUnmarshaller extends AttachmentUnmarshaller {
private Map<String, byte[]> attachments = new HashMap<String, byte[]>();
public Map<String, byte[]> getAttachments() {
return attachments;
}
@Override
public DataHandler getAttachmentAsDataHandler(String cid) {
byte[] bytes = attachments.get(cid);
return new DataHandler(new ByteArrayDataSource(bytes));
}
@Override
public byte[] getAttachmentAsByteArray(String cid) {
return attachments.get(cid);
}
@Override
public boolean isXOPPackage() {
return true;
}
private static class ByteArrayDataSource implements DataSource {
private byte[] bytes;
public ByteArrayDataSource(byte[] bytes) {
this.bytes = bytes;
}
public String getContentType() {
return "application/octet-stream";
}
public InputStream getInputStream() throws IOException {
return new ByteArrayInputStream(bytes);
}
public String getName() {
return null;
}
public OutputStream getOutputStream() throws IOException {
return null;
}
}
}
XML 片断
<foo>
<image>
<xop:Include xmlns:xop="http://www.w3.org/2004/08/xop/include" href="cid:http://example.org/me.jpeg"/>
</image>
</foo>