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javaspringspring-mvcvelocity

Error retrieving mail template for Velocity in Spring Context

I have a problem with VelocityEngine in Spring, my task is retrieve a mail template.

This is my configuration:

SPRING-CONTEXT.xml:

<bean id="velocityEngine" class="org.springframework.ui.velocity.VelocityEngineFactoryBean">
    <property name="velocityProperties">
        <value>
            resource.loader=file
            file.resource.loader.class=org.apache.velocity.runtime.resource.loader.FileResourceLoader
            file.resource.loader.path=${template.path}
            file.resource.loader.cache=${template.cache}
            file.resource.loader.modificationCheckInterval=${template.modificationCheckInterval}
        </value>
    </property>
</bean>

JAVA:

@Autowired
private JavaMailSender javaMailSender;  

@Autowired
private VelocityEngine velocityEngine;

public void sendEMailFromTemplate(String to, String subject, String template, Object object) {
    MimeMessagePreparator mmp = new MimeMessagePreparator() {
        public void prepare(MimeMessage mimeMessage) throws Exception {
            MimeMessageHelper message = new MimeMessageHelper(mimeMessage);
            message.setFrom(mailFrom);
            message.setTo(to);
            message.setSubject(subject);
            Map<String,Object> model = new HashMap<String,Object>();
            model.put("object", object);
            String text = VelocityEngineUtils.mergeTemplateIntoString(velocityEngine, template, StandardCharsets.UTF_8.name(), model);
            message.setText(text, true);
        }
    };
    this.javaMailSender.send(mmp);
}

Below the error I got when the app executes the method "send":

org.springframework.aop.interceptor.SimpleAsyncUncaughtExceptionHandler handleUncaughtException - Unexpected error occurred invoking async method 'public void test.EMailService.sendEMailFromTemplate(java.lang.String,java.lang.String,java.lang.String,java.lang.Object)'.
org.springframework.mail.MailPreparationException: Could not prepare mail; nested exception is org.apache.velocity.exception.ResourceNotFoundException: Unable to find resource 'email.vm'
    at org.springframework.mail.javamail.JavaMailSenderImpl.send(JavaMailSenderImpl.java:371)
    at org.springframework.mail.javamail.JavaMailSenderImpl.send(JavaMailSenderImpl.java:350)
    at test.EMailService.sendEMailFromTemplate(EMailService.java:44)
    at test.EMailService$$FastClassBySpringCGLIB$$f6dc0165.invoke(<generated>)
    at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204)
    at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:720)
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:157)
    at org.springframework.aop.interceptor.AsyncExecutionInterceptor$1.call(AsyncExecutionInterceptor.java:108)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.lang.Thread.run(Thread.java:745)
Caused by: org.apache.velocity.exception.ResourceNotFoundException: Unable to find resource 'email.vm'
    at org.apache.velocity.runtime.resource.ResourceManagerImpl.loadResource(ResourceManagerImpl.java:474)
    at org.apache.velocity.runtime.resource.ResourceManagerImpl.getResource(ResourceManagerImpl.java:352)
    at org.apache.velocity.runtime.RuntimeInstance.getTemplate(RuntimeInstance.java:1533)
    at org.apache.velocity.app.VelocityEngine.mergeTemplate(VelocityEngine.java:343)
    at org.springframework.ui.velocity.VelocityEngineUtils.mergeTemplate(VelocityEngineUtils.java:71)
    at org.springframework.ui.velocity.VelocityEngineUtils.mergeTemplateIntoString(VelocityEngineUtils.java:112)
    at test.EMailService$1.prepare(MailService.java:41)
    at org.springframework.mail.javamail.JavaMailSenderImpl.send(JavaMailSenderImpl.java:359)
    ... 9 more

What's wrong? Thanks.

Solution

  • The problem was the value setted in this property:

    file.resource.loader.path=${template.path}

    The "template.path" property was setted with a path with the "\" character separator, so Spring erased all character separators, avoiding the correct path. Replacing "\" with "/" I solved the problem.

    Thank you in any case.