//1.4 ext convert
MessageListenerAdapter adapter = new MessageListenerAdapter(new MessageDelegate());
adapter.setDefaultListenerMethod("consumeMessage");
//全局的转换器:
ContentTypeDelegatingMessageConverter convert = new ContentTypeDelegatingMessageConverter();
TextMessageConverter textConvert = new TextMessageConverter();
convert.addDelegate("text", textConvert);
convert.addDelegate("html/text", textConvert);
convert.addDelegate("xml/text", textConvert);
convert.addDelegate("text/plain", textConvert);
Jackson2JsonMessageConverter jsonConvert = new Jackson2JsonMessageConverter();
convert.addDelegate("json", jsonConvert);
convert.addDelegate("application/json", jsonConvert);
ImageMessageConverter imageConverter = new ImageMessageConverter();
convert.addDelegate("image/png", imageConverter);
convert.addDelegate("image", imageConverter);
PDFMessageConverter pdfConverter = new PDFMessageConverter();
convert.addDelegate("application/pdf", pdfConverter);
adapter.setMessageConverter(convert);
container.setMessageListener(adapter);
public class ImageMessageConverter implements MessageConverter {
@Override
public Message toMessage(Object object, MessageProperties messageProperties) throws MessageConversionException {
throw new MessageConversionException(" convert error ! ");
}
@Override
public Object fromMessage(Message message) throws MessageConversionException {
System.err.println("-----------Image MessageConverter----------");
Object _extName = message.getMessageProperties().getHeaders().get("extName");
String extName = _extName == null ? "png" : _extName.toString();
byte[] body = message.getBody();
String fileName = UUID.randomUUID().toString();
String path = "d:/010_test/" + fileName + "." + extName;
File f = new File(path);
try {
Files.copy(new ByteArrayInputStream(body), f.toPath());
} catch (IOException e) {
e.printStackTrace();
}
return f;
}
}
public class PDFMessageConverter implements MessageConverter {
@Override
public Message toMessage(Object object, MessageProperties messageProperties) throws MessageConversionException {
throw new MessageConversionException(" convert error ! ");
}
@Override
public Object fromMessage(Message message) throws MessageConversionException {
System.err.println("-----------PDF MessageConverter----------");
byte[] body = message.getBody();
String fileName = UUID.randomUUID().toString();
String path = "d:/010_test/" + fileName + ".pdf";
File f = new File(path);
try {
Files.copy(new ByteArrayInputStream(body), f.toPath());
} catch (IOException e) {
e.printStackTrace();
}
return f;
}
}
public class MessageDelegate {
public void consumeMessage(File file) {
System.err.println("文件对象 方法, 消息内容:" + file.getName());
}
}
@Test
public void testSendExtConverterMessage() throws Exception {
// byte[] body = Files.readAllBytes(Paths.get("d:/002_books", "picture.png"));
// MessageProperties messageProperties = new MessageProperties();
// messageProperties.setContentType("image/png");
// messageProperties.getHeaders().put("extName", "png");
// Message message = new Message(body, messageProperties);
// rabbitTemplate.send("", "image_queue", message);
byte[] body = Files.readAllBytes(Paths.get("d:", "a.pdf"));
MessageProperties messageProperties = new MessageProperties();
messageProperties.setContentType("application/pdf");
Message message = new Message(body, messageProperties);
rabbitTemplate.send("", "pdf_queue", message);
}
