Spring MVC JavaMailSenderImpl parameters from properties for javaMailProperties - spring

Question

I have a spring configuration of JavaMailSenderImpl included in my mvc.properties file like this:
email.smtp.host=smtp.example.com
email.smtp.port=25
email.smtp.username=example
email.smtp.password=example
email.smtp.auth=false
email.smtp.starttls.enable=false
And my XML configuration of the mail sending bean in servlet is following:
<bean id="mailSender" class="org.springframework.mail.javamail.JavaMailSenderImpl">
<property name="host" value="${email.smtp.host}"/>
<property name="port" value="${email.smtp.port}"/>
<property name="username" value="${email.smtp.username}"/>
<property name="password" value="${email.smtp.password}"/>
<property name="protocol" value="smtp"/>
<property name="javaMailProperties">
<props>
<prop key="mail.smtp.auth">true</prop>
<prop key="mail.smtp.starttls.enable">true</prop>
</props>
</property>
</bean>
I was trying to find information about how to include parameters from properties file also for javaMailProperties, but I am stuck.
I would like to achieve something like that, but this is not working:
<bean id="mailSender" class="org.springframework.mail.javamail.JavaMailSenderImpl">
<property name="host" value="${email.smtp.host}"/>
<property name="port" value="${email.smtp.port}"/>
<property name="username" value="${email.smtp.username}"/>
<property name="password" value="${email.smtp.password}"/>
<property name="protocol" value="smtp"/>
<property name="javaMailProperties">
<props>
<prop key="mail.smtp.auth" value="${email.smtp.auth}"></prop>
<prop key="mail.smtp.starttls.enable" value="${email.smtp.starttls.enable}"></prop>
</props>
</property>
</bean>
How to include such properties also into javaMailProperties?

Answer 1

The way I am doing this by referencing settings stored in a configuration file looks something like this:
<bean id="mailSender" class="org.springframework.mail.javamail.JavaMailSenderImpl">
<property name="host" value="${email.smtp.host}"/>
<property name="port" value="${email.smtp.port}"/>
<property name="username" value="${email.smtp.username}"/>
<property name="password" value="${email.smtp.password}"/>
<property name="protocol" value="smtp"/>
<property name="javaMailProperties" ref="propertyConfigurer"/>
</bean>
<bean id="propertyConfigurer" class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
<property name="locations">
<list>
<value>classpath:foo.properties</value>
<value>classpath:mail.properties</value>
</list>
</property>
<property name="ignoreUnresolvablePlaceholders" value="true"/>
</bean>