(一)邮箱登录校验

准备：

申请smtp授权码(自行百度、google)

activation.jar、javax.mail-1.6.0.jar

项目结构

welcome.jsp

My JSP 'welcome.jsp' starting page

邮箱登录

用户名：

授权码：

Login.class (servlet)

public void doPost(HttpServletRequest request, HttpServletResponse response)

throws ServletException, IOException {

response.setContentType("text/html");

String user = request.getParameter("user");

String pswd = request.getParameter("pswd");

String host = "pop3.163.com";

//登录验证

if(EmailUtils.getFolder(host, user, pswd)!=null){

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

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

response.sendRedirect("main.jsp");

}else{

response.sendRedirect("error.jsp");

}

}

EmailUtils.class

/**

* 登录校验、收取邮件获取folder

*

* @param host

* @param username

* @param password

* @return

*/

public static Folder getFolder(String host, String user, String pswd) {

Properties prop = new Properties();

prop.setProperty("mail.store.protocol", "pop3");

prop.setProperty("mail.pop3.host", host);

// javax.mail.Session mailSession = Session.getDefaultInstance(prop,

// null);

Session mailSession = Session.getInstance(prop, null);

mailSession.setDebug(false);

try {

Store store = mailSession.getStore("pop3");

store.connect(host, user, pswd);

Folder folder = store.getFolder("inbox");

folder.open(Folder.READ_WRITE);

return folder;

} catch (Exception e) {

e.printStackTrace();

}

return null;

}

登录校验之后

main.jsp

My JSP 'main.jsp' starting page

欢迎${sessionScope.user}

发邮件

收邮件

error.jsp

My JSP 'error.jsp' starting page

Error!

因为某tx邮箱太难伺候，干脆改成163邮箱了，想登录其他邮箱自己改地址