请问怎样用JAVAMAIL实现自动给用户发送邮件的功能？弄好了送100分

JAVAMAIL解压后，将路径加进CLASSPATH，还需要做啥准备，才可以调用它的方法吗

很简单的,邮件列表我就做过了,字段就没,不过,你做过个触发不就行了,用javamail作,你先要去java.sun.com下载javamail和jaf包,解压,把和mail.jar
和activation.jar加到classpath中去,然后就是用javamail的api编程,看看javamail api的doc很简单的

HELP！现在是JAVA我可以搞定，但是JSP搞不定
它说我ATTRIBUTE NOT VALUE

<%@ page 　　 import=" javax.mail.*, javax.mail.internet.*, javax.activation.*,java.util.*" 　　 %> 　　<html> 　　<head> 　　<TITLE>JSP meets JavaMail, what a sweet combo.</TITLE> 　　</HEAD> 　　<BODY> 　　<% 　　 try{
     String host = "smtp.163.net";
     String from="[email protected]";
String to=request.getParameter("to");
String subject=request.getParameter("subject");
String text=request.getParameter("text");
     String username = "name";
     String password = "password";
　　 Properties props = new Properties();
     props.put("mail.smtp.host", host);
     props.put("mail.smtp.auth", "true");
            Session session = Session.getDefaultInstance(props);                      session.setDebug(true);            MimeMessage message = new MimeMessage(session);　　 message.setFrom(new InternetAddress(from)); 　　 message.setRecipient(Message.RecipientType.TO, new InternetAddress(to)); 　　 message.setSubject(subject); 　　 message.setSentDate(new Date()); 　　 message.setText(text);      message.saveChanges();
     Transport transport = session.getTransport("smtp");
     transport.connect(host, username, password);
     transport.sendMessage(message, message.getAllRecipients());
     transport.close();　　 %> 　　<P>Your mail has been sent.</P> 　　<% 　　 } 　　 catch(MessagingException m) 　　 { 　　 out.println(m.toString()); 　　 } 　　%> 　　</BODY> 　　</HTML>
看看，错在那里

Java mail不如sun.net.smtp好用，你可以这样试试：import sun.net.smtp.*;  ...
  host="your host name";
  from="[email protected]";
  to=rs.getString("[email protected]");
  SmtpClient smtp=new SmtpClient(host);
  smtp.from(from);
  smtp.to(to);  PrintStream msg=smtp.startMessage();
  msg.println("From: "+from);
  msg.println("To: "+to);
  msg.println();
  msg.println("this is a mail test.");
  msg.close();  smtp.closeServer();
  ...

org.apache.jasper.compiler.ParseException: /online/sendmail.jsp(2,5) Attribute ???? has no value
at org.apache.jasper.compiler.JspReader.parseAttributeValue(JspReader.java:563)
at org.apache.jasper.compiler.JspReader.parseTagAttributes(JspReader.java:681)
at org.apache.jasper.compiler.ParserController.figureOutJspDocument(ParserController.java:265)
at org.apache.jasper.compiler.ParserController.parse(ParserController.java:194)
at org.apache.jasper.compiler.Compiler.compile(Compiler.java:210)
at org.apache.jasper.servlet.JspServlet.loadJSP(JspServlet.java:552)
at org.apache.jasper.servlet.JspServlet$JspServletWrapper.loadIfNecessary(JspServlet.java:177)
at org.apache.jasper.servlet.JspServlet$JspServletWrapper.service(JspServlet.java:189)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:382)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:474)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:247)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:243)
at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:190)
at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:475)
at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:564)
at org.apache.catalina.valves.CertificatesValve.invoke(CertificatesValve.java:246)
at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:564)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
at org.apache.catalina.core.StandardContext.invoke(StandardContext.java:2347)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:180)
at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566)
at org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherValve.java:170)
at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:564)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:170)
at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:564)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:468)
at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:564)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:174)
at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
at org.apache.catalina.connector.http.HttpProcessor.process(HttpProcessor.java:1017)
at org.apache.catalina.connector.http.HttpProcessor.run(HttpProcessor.java:1115)
at java.lang.Thread.run(Thread.java:536)

<%@ page contentType="text/html; charset=GBK" %>
<%@ page language="java" import="java.util.*,javax.mail.*,javax.mail.internet.*"%><%
try{
            String host = "smtp.263.net";
            String from =   "...";
            String to = "...";
            String username = "...";
            String password = "....";            // Get system properties
            // Properties props = System.getProperties(); 很多例子中是这样的，其实下面这句更好，可以用在applet中
            Properties props = new Properties();            // Setup mail server
            props.put("mail.smtp.host", host);
            props.put("mail.smtp.auth", "true"); //这样才能通过验证            // Get session
            Session sessionDLT = Session.getDefaultInstance(props);            // watch the mail commands go by to the mail server
            sessionDLT.setDebug(true);            // Define message
            MimeMessage message = new MimeMessage(sessionDLT);
            message.setFrom(new InternetAddress(from));
            message.addRecipient(Message.RecipientType.TO,
               new InternetAddress(to));
            message.setSubject("Hello JavaMail");
            message.setText("Welcome to JavaMail");            // Send message
            message.saveChanges();
            Transport transport = sessionDLT.getTransport("smtp");
            transport.connect(host, username, password);
            transport.sendMessage(message, message.getAllRecipients());
            transport.close();
            out.println("您的邮件发送成功！");}catch(Exception e){
  out.println(e.getMessage());
}%>

weidegong(weidegong:在你产这个程序中smtp sever设为smtp.263.net可是form只能是XXX＠263.net的形式时，邮件才能发送成功，这是怎么回事？怎样才能解决这问题？谢谢！！

To ajzhn(梦醉生):
这个很简单了。String host = "smtp.263.net";把这句改一下，你用哪个Email发送邮件，就用哪个的smtp服务器，比如，如果你使用新浪的邮箱来发送，那么String host = "smtp.sina.com.cn";
......weidegong慢慢地转过身去，自言自语道：不会吧，这位老兄居然连邮件发送的常识都不懂，还想发邮件？呵呵呵

To rain_ok(雨) ;
敢，看我不收拾你才怪^_^

调试易

请问怎样用JAVAMAIL实现自动给用户发送邮件的功能？弄好了送100分

解决方案 »