CODEWITHSUNDEEP
spring-boot
Sgr
Sgr

Reputation: 339

Error Running localhost in Spring Boot

I am trying to run an application so I can test it locally but currently I am having issues.

I am using gradle and following this tutorial

https://spring.io/guides/gs/serving-web-content/

However, I finish the tutorial and run this command :

./gradlew bootRun

The application starts but I can't hit the end point.

It throws the following error:

    Whitelabel Error Page

This application has no explicit mapping for /error, so you are seeing this as a fallback.

Fri Dec 16 16:25:06 GMT 2016
There was an unexpected error (type=Not Found, status=404).
No message available

Any idea how to fix this?

 package conf;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;

/**
 */

@SpringBootApplication
public class Application {
    public static void main(String[] args) {
        SpringApplication.run(Application.class, args);
    }

}

Greeting Class

package controller;

import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;

/**
 */

@Controller
public class GreetingController {

    @RequestMapping("/greeting")
    public String greeting(@RequestParam(value="name", required=false, defaultValue="World") String name, Model model) {
        model.addAttribute("name", name);
        return "greeting";
    }

}

Thanks

Upvotes: 0

Views: 1908

Answers (1)

Gregg
Gregg

Reputation: 35864

I believe it is because of your package structure. Based on the code you've given, your Application class can't see GreetingController because they are in sibling packages. @SpringBootApplication needs to be able to component scan same package and child packages. It can't see sibling packages. So GreetingController never gets wired up.

Won't work:

com.conf.Application
com.controller.GreetingController

Will work:

com.conf.Application
com.conf.controller.GreetingController

Upvotes: 2

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