Question

我可以使用以下代码和使用Javamail API发送电子邮件，通过它我可以使用“FROM”作为我的“yahoo email id”发送到任何电子邮件ID。代码：

mailFORM.html

    <%@page contentType="text/html" pageEncoding="UTF-8"%>
    <!DOCTYPE html>
    <html>
    <head>
    <title>Mail form in html</title>
    </head>
    <body>
    <table border="1" width="50%"  cellpadding="0" cellspacing="0">
    <tr>
    <td width="100%">
    <form method="POST" action="mail.jsp">
    <table border="1" width="100%" cellpadding="0" cellspacing="0">
    <h1>Mail API</h1>
    <tr>
    <td width="50%"><b>To:</b></td>
    <td width="50%"><input type="text" name="to" size="30"></td>
    </tr>
    <tr>
    <td width="50%"><b>From:</b></td>
    <td width="50%"><input type="text" name="from" size="30"></td>
    </tr>
    <tr>
    <td width="50%"><b>Subject:</b></td>
    <td width="50%"><input type="text" name="subject" size="30"></td>
    </tr>
    <tr>
    <td width="50%"><b>Description:</b></td>
    <td width="50%"><textarea name="description" type="text" 
cols="40" rows="15" size=100>
    </textarea>
    </td>
    </tr>
    <tr>
    <td><p><input type="submit" value="Send Mail" name="sendMail"></td>
    </tr>
    </table>
    </p>
    </form>
    </td>
    </tr>
    </table>
    </body>
    </html>

mail.jsp

    <%@page contentType="text/html" pageEncoding="UTF-8"%>
    <!DOCTYPE html>
    <%@ page language="java" import="javax.naming.*,java.io.*,javax.mail.*,
    javax.mail.internet.*,com.sun.mail.smtp.*"%>
    <html>
    <head>
    <title>sending mail using contactus form</title>
    </head>
    <body>
    <%
    try{
    Session mailSession = Session.getInstance(System.getProperties());
    Transport transport = new SMTPTransport(mailSession,new URLName("smtp.mail.yahoo.com"));
    transport = mailSession.getTransport("smtps");
    transport.connect("smtp.mail.yahoo.com",465,"myyahooid@yahoo.com","myyahoopassword");
   MimeMessage m = new MimeMessage(mailSession);
   m.setFrom(new InternetAddress(%><%request.getParameter("from")%><%));
   Address[] toAddr = new InternetAddress[] {
   new InternetAddress(%><%request.getParameter("to")%><%)
   };
   m.setRecipients(javax.mail.Message.RecipientType.TO, toAddr );
   m.setSubject(%><%request.getParameter("subject")%><%);
   m.setSentDate(new java.util.Date());
   m.setContent(%><%request.getParameter("description")%><%, "text/plain");

   transport.sendMessage(m,m.getAllRecipients());
   transport.close();
   out.println("Thanks for sending mail!"); 
   }
   catch(Exception e){
   out.println(e.getMessage());
   e.printStackTrace();
   }
   %>
   </body>

现在，我想创建一个简单的CONTACTUS表单，其中我将从“mailFORM.html”文件中删除“TO”字段，原因很明显。因为我只希望任何访问者访问我的网站并通过输入FROM，NAME，SUBJECT和描述发送电子邮件到“mycompanyid@domain.com”。

那么如何消除输入用户名和密码的问题呢？因为我无法在这里创建一个代码，其中包含了passord。我不能为不同的smtp创建单独的代码...因为VISITIR访问我的网站联系人页面可以填写表格，通过从任何域名输入他/她的电子邮件，我是Gmail，雅虎等。

总结我只是想创建这样的表格（带任何匿名网站），将详细信息发送到公司的特定电子邮件ID，如“mycompanyid@domain.com”
http://www.tutorialspoint.com/about/contact_us.htm

Answer 1

硬编码你的JSP文件中的电子邮件ID，但是一个很好的做法是避免在JSP中编写你的java代码，应该只编写方法调用。

private final String TO_EMAIL = "something@domain.com";

查看我的代码，它适用于所有SMTPS。

package com.naveed.workingfiles;

import org.apache.commons.mail.DefaultAuthenticator;
import org.apache.commons.mail.EmailAttachment;
 import org.apache.commons.mail.MultiPartEmail;

public class Mail {
String senderID;
String senderPassword;
String hostName;
int portNumber;
String attachmentPath;
String subject;
String body;
String cc;
String bcc;


// #=============================================================================================#
public String getBcc() {
    return bcc;
}

// #=============================================================================================#
public void setBcc(String bcc) {
    this.bcc = bcc;
}

// #=============================================================================================#
public String getCc() {
    return cc;
}

// #=============================================================================================#
public void setCc(String cc) {
    this.cc = cc;
}

// #=============================================================================================#
public String getBody() {
    return body;
}

// #=============================================================================================#
public void setBody(String body) {
    this.body = body;
}

// #=============================================================================================#
public String getSubject() {
    return subject;
}

// #=============================================================================================#
public void setSubject(String subject) {
    this.subject = subject;
}

// #=============================================================================================#

public String getSenderID() {
    return senderID;
}

// #=============================================================================================#
public void setSenderID(String senderID) {
    this.senderID = senderID;
}

public String getSenderPassword() {
    return senderPassword;
}

// #=============================================================================================#
public void setSenderPassword(String senderPassword) {
    this.senderPassword = senderPassword;
}

// #=============================================================================================#
public String getHostName() {
    return hostName;
}

// #=============================================================================================#
public void setHostName(String hostName) {
    this.hostName = hostName;
}

// #=============================================================================================#
public int getPortNumber() {
    return portNumber;
}

// #=============================================================================================#
public void setPortNumber(int portNumber) {
    this.portNumber = portNumber;
}

// #=============================================================================================#
public String getAttachmentPath() {
    return attachmentPath;
}

// #=============================================================================================#
public void setAttachmentPath(String attachmentPath) {
    this.attachmentPath = attachmentPath;
}

// #=============================================================================================#
public void sendMail(String receiverId) {

    try {
        // this below commented line for the HTML body text
        // MultiPartEmail htmlEmail = new HtmlEmail();
        // OR
        // HtmlEmail email = new HtmlEmail();

        MultiPartEmail email = new MultiPartEmail();
        // setting the port number
        email.setSmtpPort(getPortNumber());
        // authenticating the user
        email.setAuthenticator(new DefaultAuthenticator(getSenderID(),
                getSenderPassword()));
        // email.setDebug(true);
        email.setSSL(true);
        // setting the host name
        email.setHostName(getHostName());
        // setting the rciever id

        email.addTo(receiverId);

        // check for user enterd cc or not
        if (getCc() != null) {
            // add the cc
            email.addCc(getCc());
        }
        // check for user enterd bcc or not
        if (getBcc() != null) {
            // add the bcc
            email.addBcc(getBcc());
        }
        // setting the sender id
        email.setFrom(getSenderID());
        // setting the subject of mail
        email.setSubject(getSubject());
        // setting message body
        email.setMsg(getBody());
        // email.setHtmlMsg("<h1>"+getBody()+"</h1>");

        // checking for attachment attachment
        if (getAttachmentPath() != null) {
            // add the attachment
            EmailAttachment attachment = new EmailAttachment();
            attachment.setPath(getAttachmentPath());
            attachment.setDisposition(EmailAttachment.ATTACHMENT);
            email.attach(attachment);
        }

        // send the email
        email.send();
        // System.out.println("Mail sent!");
    } catch (Exception e) {
        // System.out.println("Exception :: " + e);
        e.printStackTrace();

    }
}// sendmail()
}// mail

只有您需要根据用户电子邮件设置所有设置者来保存所有相应的域详细信息（主机名，端口）。下载所有必需的库。

Answer 2

你可以简单地核实Message.RecipientType.TO变量。

您可以在某处定义静态变量MY_MAIL并使用MY_MAIL代替request.getParameter("to")

请确保在代码中的某处包含发件人电子邮件，以便您可以在需要时与他们联系。

还有一些其他考虑因素：

请阅读关于从JSP页面中分离实际Java代码的内容，您可以在google上找到足够的链接。
您正在导入类，但之后不再使用导入。
代码中有无用的%><%，我甚至不知道它们的用途。

在jsp中创建联系表单？

2 个答案: