Java實現郵件驗證登錄功能

function registered(){

//省略: 沒有表單驗證 驗證碼 （後期添加）

document.forms[0].action="";

document.forms[0].submit();

}

function login(){

document.forms[0].action="";

document.forms[0].submit();

}

登錄Servlet （LoginServlet）

protectedvoiddoPost(HttpServletRequestrequest, HttpServletResponseresponse) throwsServletException, IOException {

PrintWriterpwOut = response.getWriter();

Stringpath = request.getContextPath()+"/index.jsp";

Stringname = request.getParameter("name");

Stringpwd = request.getParameter("pwd");

Useruser = newUser();

user.setName(name);

user.setPwd(pwd);

if(name == null || name.trim().length() <= 0) {

pwOut.println("用戶名不能為空！");

pwOut.println(" ");

return;

}

if(pwd == null || pwd.trim().length() <= 0) {

pwOut.println("密碼不能為空！");

pwOut.println(" ");

return;

}

user = userService.login(user);

if(user == null) {

request.getSession().setAttribute("error", "1");

} else {

request.getSession().setAttribute("user", user);

}

response.sendRedirect(request.getContextPath()+"/index.jsp");

}

UserDao中的登錄方法

publicUserlogin(Useru) {

Stringsql = "select * from t_user where name=? and pwd=? and active='1' ";

QueryRunnerrun = newQueryRunner(C3p0PoolUtils.getDataSource());

try {

Useruser = run.query(sql,newBeanHandler(User.class), u.getName(),u.getPwd());

returnuser;

} catch (SQLExceptione) {

e.printStackTrace();

returnnull;

}

}

註冊Servlet (ReServlet)

PrintWriterpwOut = response.getWriter();

Stringpath = request.getContextPath()+"/index.jsp";

Stringname = request.getParameter("name");

Stringpwd = request.getParameter("pwd");

Stringemail = request.getParameter("email");

if(name == null || name.trim().length() <= 0) {

pwOut.println("用戶名不能為空！");

pwOut.print(" ");

return;

}

if(pwd == null || pwd.trim().length() <= 0) {

pwOut.println("密碼不能為空！");

pwOut.println(" ");

return;

}

if(email==null||email.trim().length()<=0){

pwOut.println("郵箱不能為空，請重新輸入!");

pwOut.println("
");

return;

}

if(email.indexOf("@")==-1){

pwOut.println("郵箱格式不對，請重新輸入!");

pwOut.println("
");

return;

}

//設置對象

Useruser = newUser();

user.setName(name);

user.setPwd(pwd);

user.setEmail(email);

user = userService.login(user);

if

//發送激活郵件

//這裡有一個小知識點，必須新開一個線程來發郵件，不能把發郵件的動作寫在這裡

//如果寫在這裡，用戶的前臺顯示會等待過長時間，不好！

newSendMailThread(user).start();

pwOut.println("您已經註冊成功，請去郵箱激活賬號後再進行登錄，如果沒有收到郵件，請稍等!
");

pwOut.println("
");

}else{

pwOut.println("很抱歉，服務器繁忙，註冊失敗，需要重新註冊！");

}

pwOut.close();

註冊Dao中的方法

publicUserreg(Useruser) {

Stringsql = "insert into t_user(id,name,pwd,email,active,acode) values(?,?,?,?,?,?)" ;

QueryRunnerrun = newQueryRunner(C3p0PoolUtils.getDataSource());

Stringid = UUID.randomUUID().toString().replaceAll("-", ""); Stringacode = UUID.randomUUID().toString().replaceAll("-", "");

try {

run..update(sql, id, user.getName(), user.getPwd(), user.getEmail(), "0", acode);

user.setId(id);

user.setAcode(acode);

user.setActive("0");

} catch (SQLExceptione) {

e.printStackTrace();

returnnull;

}

returnuser;

}

建立郵箱連接SendMailThread.java

publicclassSendMailThreadextends

privateUseruser = null ;

publicSendMailThread(Useruser) {

this.user = user ;

}

publicvoidrun() {

//跟smtp服務器建立一個連接

Propertiesp = newProperties ();

//設置郵件服務器主機名

p.setProperty("mail.host","smtp.qq.com"); //指定郵件服務器，默認端口 25

//發送服務器需要身份驗證

p.setProperty("mail.smtp.auth", "true"); //要採用指定用戶名密碼的方式去認證

//發送郵件協議名稱

p.setProperty("mail.transport", "smtp");

//開啟SSL加密， 否則會失效

MailSSLSocketFactorysf = null;

try {

sf = newMailSSLSocketFactory();

} catch (GeneralSecurityExceptione) {

e.printStackTrace();

}

sf.setTrustAllHosts(true);

p.put("mail.smtp.ssl.enable", "true");

p.put("mail.smtp.ssl.socketFactory", sf);

// 開啟debug調試，以便在控制檯查看

// session.setDebug(true);也可以這樣設置

// p.setProperty("mail.debug", "true");

// 創建session

Sessionsession = Session.getDefaultInstance(p, newAuthenticator() {

@Override

protectedPasswordAuthenticationgetPasswordAuthentication() {

// 用戶名可以用QQ賬號也可以用郵箱的別名

PasswordAuthenticationpa = newPasswordAuthentication("271249758", "oqyecoskkbxnbiie");

// 後面的字符是授權碼，用qq密碼不行！！

returnpa;

}

});

session.setDebug(true);// 設置打開調試狀態

try {

//聲明一個Message對象（代表一封郵件），從session中創建

MimeMessagemsg = newMimeMessage(session);

//郵件信息封裝

//1.發件人

msg.setFrom(newInternetAddress("[email protected]"));

//2.收件人

msg.setRecipient(RecipientType.TO, newInternetAddress(user.getEmail()));

//3.郵件內容：主題、內容

msg.setSubject(user.getName() + " ,歡迎加入我們，點擊鏈接激活賬號");

//StringBuilder這裡只會有一個線程

StringBuildersbd = newStringBuilder();

sbd.append(user.getName() + "
歡迎！確認郵箱地址以激活您的賬號。");

sbd.append("
"");

sbd.append("或者點擊下面鏈接:
");

sbd.append("http://localhost/MyMailDemo/ActiveServlet?acode=" + user.getAcode() + "
");

sbd.append("這是一封自動發送的郵件；如果您並未要求但收到這封信件，您不需要進行任何操作。");

msg.setContent(sbd.toString(), "text/html;charset=utf-8");// 發html格式的文本

// 發送動作

Transport.send(msg);

System.out.println("給" + user.getEmail() + "發送郵件成功。");

} catch (Exceptione) {

e.printStackTrace();