ProducerTemplate.骆驼.如何添加附件

Question

有人能告诉我如何使用ProducerTemplate添加附件吗?我一直在寻找，但就是找不到答案。

我正在使用Camen 2.1，我有这三个类:

MailSender2.java

import java.util.HashMap;
import java.util.Map;
import java.util.ResourceBundle;
import org.apache.camel.Exchange;
import org.apache.camel.ExchangePattern;
import org.apache.camel.ProducerTemplate;
public class MailSender2 extends TypeMail{
private static final ResourceBundle RES = ResourceBundle.getBundle("mail");
protected static final String MAIL_NOTIFICATION_ENDPOINT=RES.getString("mail.host.location").trim()+":"+RES.getString("mail.port").trim();
private Map<String, Object> header;
public MailSender2() {
this.header=new HashMap<>();
}
public void send(ProducerTemplate template) {
this.header.put("From", this.getT_from());
this.header.put("To", this.getT_to());
this.header.put("Subject", this.getT_subject());
this.header.put(Exchange.CONTENT_TYPE, "text/html; charset=UTF-8");
//this.getF_ficher() <-- I have here the file to attach
//this.getT_ficnon() <-- I have here the name ot the file
//this.getT_ficext() <-- I have here the extension ot the file
template.sendBodyAndHeaders(MAIL_NOTIFICATION_ENDPOINT, this.getT_mensaje(), header);
}
}

TypeMail.java:

public class TypeMail {

private String t_id;
private String t_from;
private String t_to;
private String t_subject;
private String t_mensaje;
private byte[] f_ficher;
private String t_ficnon;
private String t_ficext;
public String getT_id() {
return t_id;
}
public void setT_id(String t_id) {
this.t_id = t_id;
}
public String getT_from() {
return t_from;
}
public void setT_from(String t_from) {
this.t_from = t_from;
}
public String getT_to() {
return t_to;
}
public void setT_to(String t_to) {
this.t_to = t_to;
}
public String getT_subject() {
return t_subject;
}
public void setT_subject(String t_subject) {
this.t_subject = t_subject;
}
public String getT_mensaje() {
return t_mensaje;
}
public void setT_mensaje(String t_mensaje) {
this.t_mensaje = t_mensaje;
}
public byte[] getF_ficher() {
return f_ficher;
}
public void setF_ficher(byte[] f_ficher) {
this.f_ficher = f_ficher;
}
public String getT_ficnon() {
return t_ficnon;
}
public void setT_ficnon(String t_ficnon) {
this.t_ficnon = t_ficnon;
}
public String getT_ficext() {
return t_ficext;
}
public void setT_ficext(String t_ficext) {
this.t_ficext = t_ficext;
}
}

MailCommunicationTransformer.java:

import org.apache.camel.CamelContext;
import org.apache.camel.Exchange;
import org.apache.camel.ProducerTemplate;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.ws.soap.client.SoapFaultClientException;
public class MailCommunicationTransformer {
MailSender2 mailSender = null;
static Logger logger = LoggerFactory.getLogger(MailCommunicationTransformer.class);

public MailCommunicationTransformer()
{
}
public MailLog transform(Object actualMessage, Exchange exchange, CamelContext context)
{
mailSender = exchange.getIn().getBody(MailSender2.class);
try {
MailSenderDAO mailSenderDAO = (MailSenderDAO)context.getRegistry().lookup("MailSenderDAO");
mailSenderDAO.validarInput(mailSender);
if (mailSender!=null) {
ProducerTemplate template=exchange.getContext().createProducerTemplate();
try {
mailSender.send(template);
}
catch (Throwable ex) {
ex.printStackTrace();
exchange.setProperty(Exchange.EXCEPTION_CAUGHT,ex);
}
}
}catch (MailException me) {
me.printStackTrace();
exchange.setProperty(Exchange.EXCEPTION_CAUGHT,me);
}
Throwable e = exchange.getProperty(Exchange.EXCEPTION_CAUGHT,
Throwable.class);
String response = "OK";
if (e != null) {
StringBuffer mensaje = new StringBuffer();
if (e instanceof SoapFaultClientException) {
mensaje.append("MAIL fault exception: CLIENT. ");
} else {
mensaje.append("MAIL fault exception: MAIL. ");
}
logger.info("MailCommunicationTransformer",e);
while (e != null) {
e.printStackTrace();
mensaje.append(e.getMessage());
e = e.getCause();
}
response = mensaje.toString();
}
MailLog log = new MailLog(mailSender, response); //, protocolo
return log;
}
}

在TypeMail中，我有f_ficher中的文件，以及fileName (t_ficnon)和扩展名(t_ficext)，但我找不到如何在MailSender2中附加此文件。sendbodyandheaders (.....)

任何帮助都将非常感激。问候。

Answer 1

也许我不完全理解你的问题，但是ProducerTemplate不知道消息类型。

你只需要发送一个正文，也许还有一个报头到端点。

因此，主体只需要是一个完整构造的MimeMessage对象，如Camel Mail文档中所述。

您可以简单地用Java构造邮件消息，然后使用ProducerTemplate对象(您已经这样做了)。

template.sendBodyAndHeaders("your-smtp-endpoint", yourMimeMessageInstance, yourHeaderMap);

Answer 2

谢谢你的回答!

但是，最后，我可以这样做:

新类EmailProcessor.java

import java.io.File;
import java.io.IOException;
import java.net.URL;
import java.nio.file.Files;
import java.util.Objects;
import java.util.ResourceBundle;
import javax.activation.DataHandler;
import org.apache.camel.Exchange;
import org.apache.camel.Message;
import org.apache.camel.Processor;
import org.apache.commons.codec.binary.Base64;
public class EmailProcessor implements Processor {
// Atributos de la clase
private TypeMail typeMail;
public EmailProcessor(TypeMail typeMail) {
this.typeMail = typeMail;
}
@Override
public void process(Exchange exchange) throws Exception {
Message ms = exchange.getIn();
ms.setHeader("From", this.typeMail.getT_from());
ms.setHeader("To", this.typeMail.getT_to());
ms.setHeader("Subject", this.typeMail.getT_subject());
ms.setHeader(Exchange.CONTENT_TYPE, "text/html; charset=UTF-8");
ms.setBody("<p style='font-family: Calibri;'>" + this.typeMail.getT_mensaje() + "</p>");
if (this.typeMail.getF_ficher() != null) {
String mimeType = "application/pdf";
if ("zip".equals(typeMail.getT_ficext())) {
mimeType = "application/zip";
}
ms.addAttachment(typeMail.getT_ficnom() + "." + typeMail.getT_ficext(), new DataHandler(typeMail.getF_ficher(), mimeType));
}
}
}

MailSender.java:

import java.util.ResourceBundle;
import org.apache.camel.ExchangePattern;
import org.apache.camel.ProducerTemplate;
public class MailSender extends TypeMail{
private static final ResourceBundle RES = ResourceBundle.getBundle("mail");
protected static final String MAIL_NOTIFICATION_ENDPOINT=RES.getString("mail.host.location").trim()+":"+RES.getString("mail.port").trim();
public MailSender() {
}
public void send(ProducerTemplate template) {
template.send(MAIL_NOTIFICATION_ENDPOINT, ExchangePattern.InOnly, new EmailProcessor(this));
}
}