java - Spring MVC Missing matrix variable

Question

I'm trying to add a matrix parameter (or matrix variable) to my Rest Controller using SpringMVC (from Spring boot 1.2.3.RELEASE) Here is my code :

@RestController
public class SubAgentsController {

    @RequestMapping(value = "/{subagents}", method = RequestMethod.GET)
    public SubAgent subAgents(@MatrixVariable(value="agentName", pathVar="subagents") String agentName) {
        System.out.println(agentName);
    }
}

Unfortunately, when I try to get : http://localhost:8080/subagents;agentName=hello

that is the answer I receive :

There was an unexpected error (type=Bad Request, status=400).

Missing matrix variable 'agentName' for method parameter of type String

What did I do wrong ? According to http://docs.spring.io/spring-framework/docs/3.2.0.M2/reference/html/mvc.html that should work :-(

Thanks for your answers!

Answer 1

In SpringBoot Application In order to enable Matrix variables you need to define below override code

@Configuration
public class WebConfig extends WebMvcConfigurerAdapter {

    @Override
    public void configurePathMatch(PathMatchConfigurer configurer) {
        UrlPathHelper urlPathHelper = new UrlPathHelper();
        urlPathHelper.setRemoveSemicolonContent(false);
        configurer.setUrlPathHelper(urlPathHelper);
    }
}

Otherwise, they’re disabled by default