<!--questionnaire.html-->
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>董方凯的问卷调查</title>
<style>
body {
font-family: Arial, sans-serif;
margin: 20px;
}
h1 {
text-align: center;
color: #333;
}
form {
max-width: 400px;
margin: 0 auto;
}
label {
display: block;
margin-bottom: 10px;
color: #333;
font-weight: bold;
}
input[type="text"],
input[type="email"],
select {
width: 100%;
padding: 10px;
border: 1px solid #ccc;
border-radius: 4px;
box-sizing: border-box;
margin-bottom: 10px;
}
input[type="radio"],
input[type="checkbox"] {
margin-right: 5px;
}
p:last-child {
text-align: center;
}
input[type="submit"],
input[type="reset"] {
padding: 10px 20px;
background-color: #4CAF50;
color: #fff;
border: none;
border-radius: 4px;
cursor: pointer;
}
input[type="reset"] {
background-color: #f44336;
}
</style>
</head>
<body>
<h1>个人信息调查</h1>
<form action="sendemail" method="post">
<p><label for="name">姓名：</label><input type="text" name="name" id="name"></p>
<p><label for="age">年龄：</label><input type="text" name="age" id="age"></p>
<p>
<label>性别：</label>
<input type="radio" name="gender" value="男">男
<input type="radio" name="gender" value="女">女
</p>
<p>
<label>兴趣：</label>
<input type="checkbox" name="hobby" value="阅读">阅读
<input type="checkbox" name="hobby" value="运动">运动
<input type="checkbox" name="hobby" value="电脑">电脑
</p>
<p>
<label for="education">学历：</label>
<select name="education" id="education">
<option value="学士">学士</option>
<option value="硕士">硕士</option>
<option value="博士">博士</option>
</select>
</p>
<p>
<label for="email">邮箱地址：</label>
<input type="email" name="email" id="email">
</p>
<p>
<input type="submit" name="submit" value="提交">
<input type="reset" name="reset" value="重置">
</p>
</form>
</body>
</html>
//SendEmail.java
import jakarta.servlet.ServletException;
import jakarta.servlet.annotation.WebServlet;
import jakarta.servlet.http.HttpServlet;
import jakarta.servlet.http.HttpServletRequest;
import jakarta.servlet.http.HttpServletResponse;
import java.io.*;
import java.net.Socket;
@WebServlet("/sendemail")
public class SendEmail extends HttpServlet {
public void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
String username="ZGZrdGVzdEAxNjMuY29t";
String password=""; // 引号里面写发送邮箱的base64编码后的授权码
String name = request.getParameter("name");
String age = request.getParameter("age");
String gender = request.getParameter("gender");
String hobby = request.getParameter("hobby");
String education = request.getParameter("education");
String email = request.getParameter("email");
try {
Socket s = new Socket("smtp.163.com" , 25);
//IO流
BufferedReader in = new BufferedReader
(new InputStreamReader(s.getInputStream(),"UTF-8"));
PrintWriter out = new PrintWriter
(new OutputStreamWriter(s.getOutputStream(),"gbk"),true);
//connected mailServer or not
read(in);
//success or not
send(in, out, "HELO theWorld");
//validation
send(in,out,"auth login");
//handle data
send(in,out,username);
send(in,out,password);
//where from
send(in, out, "MAIL FROM: <dfktest@163.com>");
//send to
send(in, out, "RCPT TO: <2195963719@qq.com>");
//mail content
send(in, out, "DATA");
send(out, "Subject:" + name +"的个人信息问卷");
send(out, "From:董方凯的163测试邮箱 <dfktest@163.com>");
send(out, "To:董方凯的qq邮箱 <2195963719@qq.com>");
send (out, "\n");
send(out, "姓名："+name);
send(out, "年龄："+age);
send(out, "性别："+gender);
send(out, "爱好："+hobby);
send(out, "学历："+education);
send(out, "邮箱："+email);
send(out, ".");
//exit
send(in, out, "QUIT");
s.close();
response.getWriter().println("Email sent successfully.");
}
catch (Exception e) {
e.printStackTrace();
response.getWriter().println("Failed to send email.");
}
}
//read info
public void read(BufferedReader in){
try {
String msg=in.readLine();
System.out.println(msg);
} catch (IOException e) {
e.printStackTrace();
}
}
//read info and input order
public void send(BufferedReader in, PrintWriter out, String s) {
try {
out.write(s + "\n");
out.flush();
System.out.println("read : "+s);
s = in.readLine();
System.out.println("write : "+s);
}catch (Exception e) {
e.printStackTrace();
}
}
//input order
public void send(PrintWriter out, String s) {
try {
out.write(s + "\n");
out.flush();
System.out.println("write: "+s);
}
catch (Exception e) {
e.printStackTrace();
}
}
}
测试用的163邮箱 账号：dfktest@163.com 授权码：（保密）
Base64在线编码、解码网站：https://tool.chinaz.com/Tools/Base64.aspx
talnet过程：
220 163.com Anti-spam GT for Coremail System (163com[20141201])
read : HELO theWorld
write : 250 OK
read : auth login
write : 334 dXNlcm5hbWU6
read : ZGZrdGVzdEAxNjMuY29t
write : 334 UGFzc3dvcmQ6
read : （保密）
write : 235 Authentication successful
read : MAIL FROM: <dfktest@163.com>
write : 250 Mail OK
read : RCPT TO: <2195963719@qq.com>
write : 250 Mail OK
read : DATA
write : 354 End data with <CR><LF>.<CR><LF>
write: Subject:董方凯的个人信息问卷
write: From:董方凯的163测试邮箱 <dfktest@163.com>
write: To:董方凯的qq邮箱 <2195963719@qq.com>
write:
write: 姓名：董方凯
write: 年龄：21
write: 性别：男
write: 爱好：阅读
write: 学历：学士
write: 邮箱：2195963719@qq.com
write: .
read : QUIT
write : 250 Mail OK queued as zwqz-smtp-mta-g0-1,_____wDXD58PcTdlYWzVAA--.28706S2 1698132242