使用Java邮件通过Gmail SMTP发送邮件的问题
我从这里复制代码仅用于使用Gmail SMTP服务器发送邮件。但我得到安全例外。一旦我成功发送了4封邮件,我达到了目标,但后来我根据自己的应用需求对代码进行了少许更改,并引发安全性异常。我相信它会工作,但有一些问题。使用Java邮件通过Gmail SMTP发送邮件的问题
这段代码有什么问题?
的代码是:
package com.ibm.lims;
import java.security.Security;
import java.util.Properties;
import javax.mail.Message;
import javax.mail.MessagingException;
import javax.mail.Multipart;
import javax.mail.PasswordAuthentication;
import javax.mail.Session;
import javax.mail.Transport;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeBodyPart;
import javax.mail.internet.MimeMessage;
import javax.mail.internet.MimeMultipart;
public class mails {
private static final String SMTP_HOST_NAME = "smtp.gmail.com";
private static final String SMTP_PORT = "465";
//private static final String emailMsgTxt = "robin borrowed a book";
//private static final String emailSubjectTxt = "online library management system notification";
private static final String emailFromAddress = "[email protected]";
private static final String SSL_FACTORY ="javax.net.ssl.SSLSocketFactory";
//private static final String[] sendTo = {"[email protected]","[email protected]"};
public static void mailer(String[] sendTo,String emailSubjectTxt,String emailMsgTxt) throws Exception{
Security.addProvider(new com.sun.net.ssl.internal.ssl.Provider());
new mails().sendSSLMessage(sendTo,emailSubjectTxt,emailMsgTxt,emailFromAddress);
System.out.println("Sucessfully Sent mail to All Users");
}
public void sendSSLMessage(String[] recipients,String subject,String message,String from) throws MessagingException {
boolean debug = true;
Properties props = new Properties();
props.put("mail.smtp.host", SMTP_HOST_NAME);
props.put("mail.smtp.auth", "true");
props.put("mail.debug", "true");
props.put("mail.smtp.port", SMTP_PORT);
props.put("mail.smtp.socketFactory.port", SMTP_PORT);
props.put("mail.smtp.socketFactory.class", SSL_FACTORY);
props.put("mail.smtp.socketFactory.fallback", "false");
Session session = Session.getDefaultInstance(props,new javax.mail.Authenticator() {
protected PasswordAuthentication getPasswordAuthentication() {
return new PasswordAuthentication("[email protected]","weakpaasword");
}
}
);
MimeMessage message1 =new MimeMessage(session);
message1.setFrom(new InternetAddress(from));
for(int i=0;i<=recipients.length;i++){
message1.addRecipient(Message.RecipientType.TO,new InternetAddress(recipients[i]));
}
message1.setSubject(subject);
// Create the message part.
MimeBodyPart messageBodyPart =new MimeBodyPart();
//Fill message.
messageBodyPart.setText(message);
Multipart multipart = new MimeMultipart();
multipart.addBodyPart(messageBodyPart);
// Part two is attachment.
// Put parts in message
message1.setContent(multipart);
// Send the message
Transport.send(message1);
}
}
我用来从JSP称其为:
<%
String requestedopration = request.getParameter("operation");
if("Borrow".equalsIgnoreCase(requestedopration)){
Borrow borrow = new Borrow();
borrow.setBook_id(request.getParameter("bookid"));
borrow.setUser_id((String)session.getAttribute("userid"));
boolean c=LimsHandler.getInstance().borrowbook(borrow);
if(c){
final String[] sendTo = {"[email protected]","[email protected]"};
mails.mailer(sendTo,"lims notification","robin borrowed a book");
%>
但我得到安全例外。我得到的例外如下:
HTTP Status 500 -
type Exception report
message
description The server encountered an internal error() that prevented it from fulfilling this request.
exception
org.apache.jasper.JasperException: java.lang.ArrayIndexOutOfBoundsException: 2
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:413)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:342)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:267)
javax.servlet.http.HttpServlet.service(HttpServlet.java:806)
root cause
java.lang.ArrayIndexOutOfBoundsException: 2
com.ibm.lims.mails.sendSSLMessage(mails.java:64)
com.ibm.lims.mails.mailer(mails.java:35)
org.apache.jsp.borrow_jsp._jspService(borrow_jsp.java:144)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
javax.servlet.http.HttpServlet.service(HttpServlet.java:806)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:369)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:342)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:267)
javax.servlet.http.HttpServlet.service(HttpServlet.java:806)
note The full stack trace of the root cause is available in the Apache Geronimo (Embedded Tomcat/6.0.20-20090724) logs.
Apache Geronimo (Embedded Tomcat/6.0.20-20090724)
看起来你并没有为ssl设置邮件传输协议。尝试添加props.put(“mail.transport.protocol”,“smtps”);.根据JavaMail站点的这个片段,您可能需要添加“mail.smtps.auth”,“true”。
String host = "smtp.gmail.com;
String username = "user";
String password = "passwd";
Properties props = new Properties();
props.put("mail.smtps.auth", "true");
// ...
MimeMessage msg = new MimeMessage(session);
// set the message content here
Transport t = session.getTransport("smtps");
try {
t.connect(host, username, password);
t.sendMessage(msg, msg.getAllRecipients());
} finally {
t.close();
}
是的,方法是不同的,但使用相同的属性。
对不起,mail.transport.protocol属性似乎不影响快速单元测试中的任何内容......查看java邮件源代码,它看起来像它会。 session.setProtocolForAddress(“rfc822”,“smtps”)这样做,尽管这也可以在属性文件中设置。 – 2009-12-31 20:52:52
实际上,我能够发送邮件。我发送了4 5邮件。但后来发生异常。这是一个服务器问题。 String []收件人被写成字符串reciepients []在本网站提供的代码中。我改变了这是原因? – 2010-01-01 06:06:32
你的代码似乎很好,除了循环是错误的。使用“<”而不是“< =”,那么你将不会得到ArrayIndexOutOfBoundException。
for (int i = 0; i < recipients.length; i++) {
message1.addRecipient(Message.RecipientType.TO,
new InternetAddress(recipients[i]));
}
PLZ帮助问题依然存在。 – 2010-01-03 19:29:20
已编辑答案部分。使用“ 2010-01-03 21:53:45
请发布这些安全例外的文本。您是否在Web应用程序服务器日志中找到这些日志,或者它们是否显示在返回的HTML页面上? – 2009-12-31 15:33:32
这些是你在这篇文章中真正的凭据吗?如果我是你,我会删除那些人吗? – 2009-12-31 15:45:55
我以为IBM员工有导师。 – BalusC 2009-12-31 15:55:29