错误，而通过云

发送邮件这是我发送邮件错误，而通过云

<html> 
<head> 
<title>JSP JavaMail Example </title> 
</head> 

<body> 

<%@ page import="java.util.*" %> 
<%@ page import="javax.mail.*" %> 
<%@ page import="javax.mail.internet.*" %> 
<%@ page import="javax.activation.*" %> 
<%@ page import="javax.mail.Authenticator" %> 
<%@ page import="javax.mail.PasswordAuthentication" %> 
<%@ page import="java.sql.*" %> 
<%@ page import="com.google.appengine.api.rdbms.*" %> 
<%@ page import="com.sun.mail.smtp.*" %> 
<%@ page import="com.google.appengine.api.mail.*" %> 

<% 

class GMailAuthenticator extends Authenticator { 
String user; 
String pw; 
public GMailAuthenticator (String username, String password) 
{ 
    super(); 
    this.user = username; 
    this.pw = password; 
} 
public PasswordAuthentication getPasswordAuthentication() 
{ 
    return new PasswordAuthentication(user, pw); 
} 
} 

String host = "smtp.gmail.com"; 
String user= "[email protected]"; 
String pass= "xxxxxxxxx"; 
String to = request.getParameter("to"); 
String from = request.getParameter("from"); 
String subject = request.getParameter("subject"); 
String messageText = request.getParameter("body"); 
boolean sessionDebug = false; 

String SSL_FACTORY = "javax.net.ssl.SSLSocketFactory"; 

Properties props = System.getProperties(); 
props.put("mail.host", host); 
props.put("mail.smtp.", "true"); 
props.put("mail.smtp.port", "465"); 
props.put("mail.smtp.socketFactory.fallback", "true"); 
props.put("mail.smtp.socketFactory.class", SSL_FACTORY); 
props.put("mail.debug", "true"); 
props.put("mail.smtp.auth", "true"); 
props.put("mail.transport.protocol", "smtp"); 
props.put("mail.smtp.starttls.enable",true); 
props.put("mail.smtp.starttls.required",true); 

Session mailSession =Session.getInstance(props, new GMailAuthenticator(user, pass)); 

mailSession.setDebug(sessionDebug); 

Message msg = new MimeMessage(mailSession); 

msg.setFrom(new InternetAddress(from)); 
InternetAddress[] address = {new InternetAddress(to)}; 
msg.setRecipients(Message.RecipientType.TO, address); 
msg.setSubject(subject); 
msg.setSentDate(new java.util.Date()); 
msg.setText(messageText); 

Transport transport = mailSession.getTransport("smtp"); 
transport.connect(host,user,pass); 

Transport.send(msg); 

out.println("Mail was sent to " + to); 
out.println(" from " + from); 
out.println(" using host " + host + "."); 
response.sendRedirect("verify.jsp"); 

String u= String.valueOf(session.getAttribute("un")); 

Connection c = null; 
PreparedStatement ps=null; 
ResultSet rs=null; 
Class.forName("com.mysql.jdbc.Driver"); 
DriverManager.registerDriver(new AppEngineDriver()); 
c =  DriverManager.getConnection("jdbc:google:rdbms://ctsteaching:ctsdatabase/ctsdb"); 


String query="update Registration set Status='Active' where Username=? "; 
ps=c.prepareStatement(query); 
ps.setString(1,u.trim()); 
ps.executeUpdate(); 

    %> 
    </table> 
    </body> 
</html>

的代码在云中部署它后，在发送邮件我收到以下错误。

java.lang.NoClassDefFoundError: javax.net.SocketFactory is a restricted class. Please see the Google App Engine developer's guide for more details. 
    at com.google.appengine.runtime.Request.process-02f037dc0f1c0aab(Request.java) 
    at javax.net.SocketFactory.<clinit>(SocketFactory.java) 
    at java.lang.reflect.Method.invoke(Method.java:43) 
    at com.sun.mail.util.SocketFetcher.getSocketFactory(SocketFetcher.java:382) 
    at com.sun.mail.util.SocketFetcher.getSocket(SocketFetcher.java:193) 
    at com.sun.mail.smtp.SMTPTransport.openServer(SMTPTransport.java:1938) 
    at com.sun.mail.smtp.SMTPTransport.protocolConnect(SMTPTransport.java:642) 
    at javax.mail.Service.connect(Service.java:248) 
    at javax.mail.Service.connect(Service.java:91) 
    at org.apache.jsp.sendMail_jsp._jspService(sendMail_jsp.java:118) 
    at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:97) 
    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$CachedChain.doFilter(ServletHandler.java:1166) 
    at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157) 
    at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157) 
    at org.mortbay.jetty.servlet.ServletHandler$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 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$RequestHandler.headerComplete(HttpConnection.java:923) 
    at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404) 
    at com.google.tracing.TraceContext$TraceContextRunnable.runInContext(TraceContext.java:449) 
    at com.google.tracing.TraceContext$TraceContextRunnable$1.run(TraceContext.java:455) 
    at com.google.tracing.TraceContext.runInContext(TraceContext.java:695) 
    at com.google.tracing.TraceContext$AbstractTraceContextCallback.runInInheritedContextNoUnref(TraceContext.java:333) 
    at com.google.tracing.TraceContext$AbstractTraceContextCallback.runInInheritedContext(TraceContext.java:325) 
    at com.google.tracing.TraceContext$TraceContextRunnable.run(TraceContext.java:453) 
    at java.lang.Thread.run(Thread.java:679)

来源

2012-07-03 user1421789