Sending mail with the user entered username and password in Spring

Question

My application requires sending a mail from the user entered user name and password using Spring API. Here's how my Application Context file look.

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans" 
xmlns:context="http://www.springframework.org/schema/context" 
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
xmlns:task="http://www.springframework.org/schema/task"
xsi:schemaLocation=" http://www.springframework.org/schema/beans 
                                            http://www.springframework.org/schema/beans/spring-beans-3.0.xsd 
                                            http://www.springframework.org/schema/context 
                                            http://www.springframework.org/schema/context/spring-context-3.0.xsd 
                                            http://www.springframework.org/schema/util 
                                            http://www.springframework.org/schema/util/spring-util.xsd 
                                            http://www.springframework.org/schema/task 
                                            http://www.springframework.org/schema/task/spring-task-3.0.xsd">

<context:component-scan base-package="net.mail" />
<bean id="mailSender" class="org.springframework.mail.javamail.JavaMailSenderImpl">  
    <property name="host" value="smtp.gmail.com"/>
    <property name="port" value="25"/>  
    <property name="username" value="xyz@xyz.com" />  
    <property name="password" value="xyz" />  
    <property name="javaMailProperties">  
        <props>  
                <prop key="mail.transport.protocol">smtp</prop>
                <prop key="mail.smtp.auth">true</prop>
                <prop key="mail.smtp.starttls.enable">true</prop>
                <prop key="mail.debug">true</prop>  
        </props>  
    </property>  
</bean>  
</beans> 

And my Controller looks like following

package net.mail;
import javax.servlet.http.HttpServletRequest;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.mail.MailSender;
import org.springframework.mail.SimpleMailMessage;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;

@Controller
public class MailController 
{
    @Autowired
    MailSender sender;

    @ResponseBody
    @RequestMapping("/send")
    public String sendMailToIt(HttpServletRequest request)
    {
        try
        {
            String from=request.getParameter("from");
            String to=request.getParameter("to");
            String sub=request.getParameter("subject");

            String username=request.getParameter("username");
            String password=request.getParameter("password");

            //username and password should be used for authentication

            SimpleMailMessage mail=new SimpleMailMessage();
            mail.setFrom(from);
            mail.setTo(to);
            mail.setSubject(sub);
            mail.setText("hello");

            sender.send(mail);
        }
        catch(Exception e)
        {
            e.printStackTrace();
            return "Exception Occured";
        }
        return new String("mail sent");
    }
}

Now my requirements are

• I don't want to use the properties file.
• I want to username and password to be the ones entered by user.

I only found solutions using the properties file. but in my case i do not want to use that file.

Is there any way of doing so?

Answer 1

You can set in your MailController by getting data from the user ( set or override based on your requirement)

 public String sendMailToIt(HttpServletRequest request)
 {
     .....
     JavaMailSenderImpl jMailSender = (JavaMailSenderImpl)sender;

     jMailSender.setUsername(userName);
     jMailSender.setPassword(password);

     ....
     jMailSender.send(mail);

     ....
 }