我已经映射了一个 servlet 和一个 jsp 表单。填写完表格后，我应该会得到一个确认页面，其中包含所填写内容的摘要，并且应该发送一封电子邮件（使用 gmail 远程），但到目前为止没有任何反应，甚至没有错误消息。它加载回注册表所在的 jsp 文件。任何想法为什么会发生这种情况？
过程中根本没有数据库交互。
这是 Servlet：
package eBooks.controller;
import eBooks.business.User;
import eBooks.util.MailUtil;
import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.mail.MessagingException;
import javax.servlet.RequestDispatcher;
import javax.servlet.http.HttpSession;
public class ContactServlet extends HttpServlet{
protected void doPost(HttpServletRequest request,
HttpServletResponse response)
throws ServletException, IOException
{
// get parameters from the request
String fName = request.getParameter("fName_contact");
String lName = request.getParameter("lName");
String emailAddress = request.getParameter("emailAddress");
String subject = request.getParameter("subject_contact");
String messageArea = request.getParameter("messageArea");
// Create a user object and store the object
User user = new User(fName, lName, emailAddress, subject, messageArea);
HttpSession session = request.getSession();
session.setAttribute("user", user);
// send email to user
String to = emailAddress;
String from = "somemail@gmail.com";
String emailSubject = subject;
String body = "Dear " + fName + ", \n\n"+
"Thanks for contacting us. This is a confirmation to inform you that"
+ "we received your message.\n\n"
+ "Our team is reviewing your message and we will get back to you as soon"
+ "as possible. \n\n"
+ "Regards,\n\n"
+ "Matt \n"
+ "CEO";
boolean isBodyHtml = false;
try
{
MailUtil.sendMail(to, from, emailSubject, body, isBodyHtml);
}
catch(MessagingException e)
{
String errorMessage =
"Error Unable to send email. " +
"Check your Server (Glassfish) logs for details.<br/>" +
"Note: You may need to configure your system again.<br/>"+
"Error Message: " + e.getMessage();
request.setAttribute("errorMessage", errorMessage);
this.log(
"Unable to send email. \n" +
"Here is the email you tried to send \n"+
"====================================\n"+
"To:" + emailAddress + "\n"+
"FROM: " + from + "\n" +
"SUBJECT: " + subject + "\n"+
"\n" +
body + "\n\n");
}
// forward request and response to JSP page
String url = "/WEB-INF/view/confirmation.jsp";
RequestDispatcher dispatcher = getServletContext().getRequestDispatcher(url);
dispatcher.forward(request, response);
}
}
这是联系表格：
<%@taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<%@page contentType="text/html" pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
<link rel="stylesheet" type="text/css" href="css/stylesheet.css">
<%@taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<title>Contact</title>
</head>
<body>
<div id="page-container">
<c:import url="/WEB-INF/includes/main-nav.jspf"/>
<div id="header-content">
<h1> [ Contact ] </h1>
<p> </p>
<p> </p>
<h2>Share your thoughts with us:</h2>
<form action="contactEmail" method="post">
<p class="name">
<input type="text" name="fName" id="fName"
value ="${User.fName}"/>
<label for="fName">First Name</label>
</p>
<p class="name">
<input type="text" name="lName" id="lName"
value ="${user.lName}"/>
<label for="lName">Last Name</label>
</p>
<p class="email">
<input type="text" name="emailAddress" id="emailAddress"
value="${user.emailAddress}"/>
<label for="emailAddress">E-mail</label>
</p>
<p class="web">
<input type="text" name="subject" id="subject"
value="${user.subject}"/>
<label for="subject">Subject</label>
</p>
<p class="text-message">
<label for="messageArea">Your message: </label><br>
<br>
<textarea name="messageArea" id="messageArea"
>${user.message}</textarea>
</p>
<p class="submit">
<input type="button"
onClick="validate(this.form)" value="Submit">
</p>
</form>
<p> </p>
<script language="JavaScript">
function validate(form){
if(form.fName.value==""){
alert("Please fill your first name");
form.fName.focus();
}
else if(form.lName.value==""){
alert("Please fill your last name");
form.lName.focus();
}
else if(form.subject.value==""){
alert("Please fill the subjetct");
form.subject.focus();
}
else if (form.messageArea.value==""){
alert("The message cannot be empty");
form.text_message_area.focus();
}
else{
form.submit();
}
}
</script>
</div>
<div id="content-assist">
<div class ="padding">
<h2>We are located at:</h2>
<p>153 West 139th Street New York, NY<br>
</p>
<p>We are currently undergoing a 'face lift', so if you have any questions or would like more information about the services we provide please feel free to contact us.</p>
<h2>Give us a call:</h2>
<p>Phone: 212- 470-5024<br />
Fax: (212) xxx xxxx<br />
Email: <a href="mailto:info@noemailLuistest.com">info@LuisDomainTest.com</a><br />
ZIP: 10030, New York, USA</p>
<p><a href="contact.jsp">More contact information…</a></p>
</div>
</div>
<c:import url="/WEB-INF/includes/footer.jspf"/>
这是确认jsp：
<%@taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<%@page contentType="text/html" pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<link rel="stylesheet" type="text/css" href="css/stylesheet.css">
<%@taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<title>Dashboard</title>
</head>
<body>
<div id="page-container">
<c:import url="/WEB-INF/includes/main-nav.jspf"/>
<div id="confirmation-top">
<h2>[ Confirmation ]</h2>
</div>
<div id="confirmation">
<h2> Awesome! We got your message </h2>
<p>Thanks for contacting us. Your message has been submitted and it
will be reviewed by our specialist in the order in which it was received.</br>
<br>
A confirmation email has been sent to ${sessionScope.user.emailAddress} </p>
<form action="index.jsp">
<input type="submit" value="/index.jps" name="home_btn" />
</form>
<p>
<i>${requestScope.errorMessage}</i>
</p>
<br>
</div>
<c:import url="/WEB-INF/includes/footer.jspf"/>
这是 emailUtil：
package eBooks.util;
import java.util.Properties;
import javax.mail.MessagingException;
import javax.mail.Session;
import javax.mail.Message;
import javax.mail.Address;
import javax.mail.Transport;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeMessage;
public class MailUtil {
//private static String mailhost = "smtp.gmail.com";
public static void sendMail(String to, String from, String body,
String subject, boolean bodyIsHtml)
throws MessagingException
{
// 1 - get session
Properties props = new Properties();
props.put("mail.transport.protocol", "smtps");
props.put("mail.smtps.host", "smtp.gmail.com");
props.put("mail.smtps.port", 465);
props.put("mail.smtps.auth", "true");
props.put("mail.smtps.quitwait", "false");
Session session = Session.getDefaultInstance(props);
session.setDebug(true);
// 2 - create a message
Message message = new MimeMessage(session);
message.setSubject(subject);
if(bodyIsHtml)
message.setContent(body, "text/html");
else
message.setText(body);
// 3 - address the message
Address fromAddress = new InternetAddress(from);
Address toAddress = new InternetAddress(to);
message.setFrom(fromAddress);
message.setRecipient(Message.RecipientType.TO, toAddress);
// 4 - send the message
Transport transport = session.getTransport();
transport.connect("somemail2@gmail.com", "password123");
transport.sendMessage(message, message.getAllRecipients());
transport.close();
}
}
这是 servlet xml：
<!-- the definition fo r the servlets -->
<servlet>
<servlet-name>ContactServlet</servlet-name>
<servlet-class>eBooks.controller.ContactServlet</servlet-class>
</servlet>
<!-- the mapping for the servlets -->
<servlet-mapping>
<servlet-name>ContactServlet</servlet-name>
<url-pattern>/WEB-INF/view/contactEmail</url-pattern>
</servlet-mapping>