【发布时间】：2014-11-09 11:59:49
【问题描述】：
我正在尝试从包含文本框和提交按钮的 jsp 表单发送邮件。当用户在文本框中输入电子邮件 ID 并单击提交按钮时，将调用 servlet 页面。这里的 url 被更改为 servlet url 并且它生成空白页面并且邮件不会被发送。
这是我的 demo1.jsp
<%--
Document : demo1
Created on : 14 Sep, 2014, 10:08:26 AM
Author : KuNaL-IT
--%>
<%@page contentType="text/html" pageEncoding="UTF-8"%>
<%--<%@page import="java.io.*,java.util.*,javax.mail.*,java.util.Properties" %>
<%@page import="javax.mail.internet.*,javax.activation.*" %>
<%@page import="javax.servlet.http.*,javax.servlet.*" %>--%>
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>JSP Page</title>
</head>
<body>
<div>
<form method="post" action="/BloodDirectory/mail_servlet">
Mail id: <input type="text" name="txtmail">
<input type="submit" value="Submit">
</form>
</div>
</body>
</html>
我的 Servlet 文件 mail_servlet.java
/*
* To change this license header, choose License Headers in Project Properties.
* To change this template file, choose Tools | Templates
* and open the template in the editor.
*/
package test;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.logging.Level;
import java.util.logging.Logger;
import static java.lang.System.out;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
/**
*
* @author KuNaL-IT
*/
public class mail_servlet extends HttpServlet {
/**
* Processes requests for both HTTP <code>GET</code> and <code>POST</code>
* methods.
*
* @param request servlet request
* @param response servlet response
* @throws ServletException if a servlet-specific error occurs
* @throws IOException if an I/O error occurs
*/
protected void processRequest(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException, Exception {
response.setContentType("text/html;charset=UTF-8");
try (PrintWriter out = response.getWriter()) {
mail.sendMail(request.getParameter("txtmail"));
out.println(request.getParameter("txtmail"));
response.sendRedirect("demo1.jsp");
//out.close();
}
catch(Exception e)
{
out.println("error in mail"+e);
}
finally
{
out.close();
}
}
// <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
/**
* Handles the HTTP <code>GET</code> method.
*
* @param request servlet request
* @param response servlet response
* @throws ServletException if a servlet-specific error occurs
* @throws IOException if an I/O error occurs
*/
@Override
protected void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
try {
processRequest(request, response);
} catch (Exception ex) {
Logger.getLogger(mail_servlet.class.getName()).log(Level.SEVERE, null, ex);
}
}
/**
* Handles the HTTP <code>POST</code> method.
*
* @param request servlet request
* @param response servlet response
* @throws ServletException if a servlet-specific error occurs
* @throws IOException if an I/O error occurs
*/
@Override
protected void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
try {
processRequest(request, response);
} catch (Exception ex) {
Logger.getLogger(mail_servlet.class.getName()).log(Level.SEVERE, null, ex);
}
}
/**
* Returns a short description of the servlet.
*
* @return a String containing servlet description
*/
@Override
public String getServletInfo() {
return "Short description";
}// </editor-fold>
}
And sendmail method is defined in <b>mail.java</b>
<code>
/*
* To change this license header, choose License Headers in Project Properties.
* To change this template file, choose Tools | Templates
* and open the template in the editor.
*/
package test;
import java.util.Properties;
import javax.mail.Message;
import javax.mail.Session;
import javax.mail.Transport;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeMessage;
/**
*
* @author KuNaL-IT
*/
public class mail {
public static void sendMail(String e_mail) throws Exception {
String sender = "kunal.k.kakkad@gmail.com";
String pass = "abcdefghijkl";
String rec = e_mail;
String msg = "Hello This is sample test mail...";
String sub = "Test Subject";
// System.out.println(rec);
Properties props = new Properties();
props.put("mail.transport.protocol", "smtps");
props.put("mail.smtps.host", "smtp.gmail.com");
props.put("mail.smtps.auth", "true");
// props.put("mail.smtps.quitwait", "false");
Session mailSession = Session.getDefaultInstance(props);
mailSession.setDebug(true);
Transport transport = mailSession.getTransport();
MimeMessage message = new MimeMessage(mailSession);
message.setSubject(sub);
message.setContent(msg, "text/plain");
message.addRecipient(Message.RecipientType.TO, new InternetAddress(rec));
transport.connect("smtp.gmail.com", 465, sender, pass);
transport.sendMessage(message,
message.getRecipients(Message.RecipientType.TO));
System.out.println(" message send");
transport.close();
}
}
我已经导入了 mail.jar、activation.jar 库。 现在请指导我在哪里犯错？ 请帮我通过它发送邮件。
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