Spring Autowiring Issues in a Servlet - spring

Question

I am having some issues with Autowiring
First off i create an Embedded server
Main.java
Server server = new Server(8080);
CXFNonSpringServlet cxf = new CXFNonSpringJaxrsServlet();
ServletHolder servlet = new ServletHolder(cxf);
servlet.setInitParameter("javax.ws.rs.Application", "com.asd.dispatcher.rest.testApplication");
servlet.setName("services");
servlet.setForcedPath("services");
ServletContextHandler context = new ServletContextHandler(ServletContextHandler.SESSIONS);
context.setContextPath("/hello");
server.setHandler(context);
context.addServlet(servlet, "/*");
server.start();
testApplication.java
public class testApplication extends Application {
#Override
public Set<Class<?>> getClasses() {
Set<Class<?>> classes = new HashSet<Class<?>>();
classes.add(testServlet.class);
return classes;
}
}
testServlet.java
#Path("/people")
#Component
#Scope("prototype")
public class testServlet {
#Autowired
private StatsService statsService;
#Produces({ "application/json" })
#GET
public String getPeople(#QueryParam("page") #DefaultValue("1") final int page) {
System.out.println("======= getPeople");
//statsService.printStats();
return "Hello World";
}
}
Now my issue is that my statsService is not being autowired in testServlet.java, yet i can autowire it into another class annotated with #Service,
is this because of me using a CXFNonSpringServlet??
or is it because of the way i am trying to Autowire?

Answer 1

Ok i got it working
Ok so i fixed it (i would post this as the answer but cant answer my own question :/ )
putting the answer here to help anyone else with the same problem
After having a look at the following
Autowiring in servlet
I came to the conclusion that a Post Construct method that gets the applicationContext and then the bean would work
Eg: my code would be this
#Path("/people")
#Component
#Scope("prototype")
public class testServlet {
private StatsService statsService;
#PostConstruct
public void initStats() {
System.out.println("============================= Init");
ApplicationContext context = new GenericXmlApplicationContext("applicationContext.xml");
statsService = context.getBean("statsService", StatsService.class);
}
#Produces({ "application/json" })
#GET
public String getPeople(#QueryParam("page") #DefaultValue("1") final int page) {
System.out.println("======= getPeople");
statsService.printStats();
return "Hello World";
}
}
Although this is not autowiring it does work, if there is anyone who knows how to do this with autowiring i would love to know as it would be far cleaner then the solution i found.
*on a side note i picked up a new issue with this 'solution' to my problem in that the statsService that i have also has other beans autowired in, and it seems although the auto wiring initializes these beans any changes to their state in another class are not reflected in the statsService infact the state of these beans remain unchanged (although that might be the suspected behavior i am still new to spring so i am not sure)

Answer 2

I don't know what CXFNonSpringServelt is, but my question is: Have you added the lines above in the context-config.xml file of your application?
<beans
xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:context="http://www.springframework.org/schema/context"
xsi:schemaLocation="
http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-3.2.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-3.2.xsd">
...
...
<context:component-scan base-package="package of the classes with annotations" />
And in your server class you should add the annotation #Service
#Service("myService")
public class MyService ...
And you can use the #Authowire like this:
public class Client{
#Autowire
MyService myservice;
...