Question

This is a similar question to those that have been asked before, but still different, and I simply can’t figure it out.

I have a controller for a REST webservice implemented with MVC which should be handling requests for the path ‘/users/contacts’, the problem is that in my client test app, when I try to hit that path I get:

No mapping found for HTTP request with URI /users/users/contacts in DispatcherServlet with name 'webservice'

Again, in my client test app, when I change the request path to something like ‘/WHATEVERusers/contacts’, I’ll get an error that it can’t resolve ‘/WHATEVERusers/contacts’

I don’t know why when I try to hit a path handled by a controller it get’s mangled, but when I request some garbage path, it doesn’t.

I don’t have the code in front of me, but will be able to answer questions when I get home.

Here’s code from my test client:

private static void TestGetContacts()
{
    UserCreateRequest request = new UserCreateRequest();

    Gson gson = new Gson();

    try

    {
        HttpClient client = new DefaultHttpClient();

        StringEntity string  = new StringEntity(gson.toJson(request), HTTP.UTF_8);
        string.setContentType("application/json");

        URI uri = URIUtils.createURI("http", "localhost", 8888, "/users/contacts", null, null);

        HttpPost post = new HttpPost(uri);
        post.setEntity(string);

        client.execute(post);
    }
    catch(Exception ex)
    {
        System.out.println(ex.getMessage());
    }
}

Here’s my controller class:

@Controller
@RequestMapping("/users/contacts")
public class UserContactService
{
private @Autowired ApplicationContext appContext;

@RequestMapping(method=RequestMethod.POST, consumes="application/json", produces="application/json")
public GetContactsResponse GetContacts(@RequestBody UserCreateRequest request)
{
    GetContactsResponse response = new GetContactsResponse();

    return response;
}
}

Here’s my servlet config:

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

<!--
    - The controllers are autodetected POJOs labeled with the @Controller annotation.
-->
<context:component-scan base-package="com.impersonal.server.restservice.users"/>                

<bean class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter">
    <property name="messageConverters">
        <list>
            <ref bean="jsonConverter" />
            <!-- 
            <ref bean="marshallingConverter" />
            <ref bean="atomConverter" />
            -->
        </list>
    </property>
</bean>

<bean id="jsonConverter" class="org.springframework.http.converter.json.MappingJacksonHttpMessageConverter">
    <property name="supportedMediaTypes" value="application/json" />
</bean>

And here’s my web config:

<?xml version="1.0" encoding="utf-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns="http://java.sun.com/xml/ns/javaee"
xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
version="2.5">

<context-param>
    <param-name>contextConfigLocation</param-name>
    <param-value>classpath:/**/applicationContext.xml</param-value>
</context-param>

<servlet>
    <servlet-name>webservice</servlet-name>
    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
    <load-on-startup>1</load-on-startup>
</servlet>

<servlet-mapping>
    <servlet-name>webservice</servlet-name>
    <url-pattern>/*</url-pattern>
</servlet-mapping>

<welcome-file-list>
    <welcome-file>index.html</welcome-file>
</welcome-file-list>

Update:
My requests are handled in my controller, but after the request is handled, the server prints out that it couldn’t resolve /users/users/contacts. For some reason another request is getting to DispsatcherServlet, and I don’t know why..

Thanks,
Mark

Answer 1

Adding @ResponseBody to my method signature solved my issue. Didn’t realize I actually needed it, and not having it resulted in really odd side affects.