我的应用程序允许用户发送消息。然后,消息的收件人可以将消息回复到地址 message_id@application_id.appspotmail.com。然后将消息发送给所有其他收件人而不进行修改。
这是使用的代码:
public class MailHandlerServlet extends HttpServlet {
/**
*
*/
private static final long serialVersionUID = 7353232175365669L;
static Logger log = Logger.getLogger(MailService.class.getName());
@Override
public void doPost(HttpServletRequest req, HttpServletResponse resp)
throws IOException, ServletException {
Properties props = new Properties();
Session session = Session.getDefaultInstance(props, null);
//Parse the received email
MimeMessage messageToSend = new MimeMessage(session, req.getInputStream());
//Create the new message
Message msg = new MimeMessage(messageToSend);
//Add All Recipient to the new Message
msg.addRecipient(Message.RecipientType.BCC, new InternetAddress(mail));
//[...]
//Set From to the last appengine email adresse
msg.setFrom(new InternetAddress(req.getPathInfo(), "Mail"));
//Send the email
Transport.send(msg);
}
}
此代码适用于许多电子邮件,但对于某些电子邮件,有一个错误:
/_ah/mail/5e3698a24927925e9f32cf0050aef84a@[...].appspotmail.com
javax.mail.SendFailedException: Send failure (javax.mail.MessagingException: Converting attachment data failed)
at javax.mail.Transport.send(Transport.java:163)
at javax.mail.Transport.send(Transport.java:48)
at [...].server.mail.MailHandlerServlet.doPost(MailHandlerServlet.java:178)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:637)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:511)
at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1166)
at cef.kephas.server.NamespaceFilter.doFilter(NamespaceFilter.java:31)
at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157)
at com.google.apphosting.utils.servlet.ParseBlobUploadFilter.doFilter(ParseBlobUploadFilter.java:125)
at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157)
at com.google.apphosting.runtime.jetty.SaveSessionFilter.doFilter(SaveSessionFilter.java:35)
at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157)
at com.google.apphosting.utils.servlet.JdbcMySqlConnectionCleanupFilter.doFilter(JdbcMySqlConnectionCleanupFilter.java:57)
at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157)
at com.google.apphosting.utils.servlet.TransactionCleanupFilter.doFilter(TransactionCleanupFilter.java:43)
at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157)
at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:388)
at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216)
at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:182)
at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:765)
at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:418)
at com.google.apphosting.runtime.jetty.AppVersionHandlerMap.handle(AppVersionHandlerMap.java:266)
at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)
at org.mortbay.jetty.Server.handle(Server.java:326)
at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:542)
at org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:923)
at com.google.apphosting.runtime.jetty.RpcRequestParser.parseAvailable(RpcRequestParser.java:76)
at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404)
at com.google.apphosting.runtime.jetty.JettyServletEngineAdapter.serviceRequest(JettyServletEngineAdapter.java:146)
at com.google.apphosting.runtime.JavaRuntime$RequestRunnable.run(JavaRuntime.java:447)
at com.google.tracing.TraceContext$TraceContextRunnable.runInContext(TraceContext.java:466)
at com.google.tracing.TraceContext$TraceContextRunnable$1.run(TraceContext.java:473)
at com.google.tracing.TraceContext.runInContext(TraceContext.java:694)
at com.google.tracing.TraceContext$AbstractTraceContextCallback.runInInheritedContextNoUnref(TraceContext.java:338)
at com.google.tracing.TraceContext$AbstractTraceContextCallback.runInInheritedContext(TraceContext.java:330)
at com.google.tracing.TraceContext$TraceContextRunnable.run(TraceContext.java:470)
at com.google.apphosting.runtime.ThreadGroupPool$PoolEntry.run(ThreadGroupPool.java:251)
at java.lang.Thread.run(Thread.java:679)
Caused by: javax.mail.MessagingException: Converting attachment data failed
at com.google.appengine.api.mail.stdimpl.GMTransport.sendMessage(GMTransport.java:215)
at javax.mail.Transport.send(Transport.java:95)
... 38 more
问题是什么?我不更改消息。那些不起作用的消息不是我发的,所以我没有消息中包含的手段。是否有人设法提供这样的服务?
谢谢。