Springboot api not working, 404 not found-CodePudding

I created this simple springboot app:

SpringbootBackendApplication.java

package com.example.demo;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.context.annotation.ComponentScan;

import controller.CaseFileController;

@SpringBootApplication
@ComponentScan(basePackageClasses = CaseFileController.class)
public class SpringbootBackendApplication {

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

}

and

CaseFileController.java

package controller;

import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;


@RestController
@RequestMapping("/api/v1/")
public class CaseFileController {
    
    @GetMapping("/hello")
    public String helloWorld() {
        return "Hello World";
    }
}

But when i try to access localhost:8080/api/v1/hello i get a 404 not found error, i found another question similar to mine that got fixed by adding component scan in the main app file, but as you see, i added it and still doesnt work, any ideas?

CodePudding user response：

Move your Controller to com.example.demo.controllers package and messing with component scan won't be required.

Spring will automatically scan packages under com.example.demo.

Your ComponentScan directive doesn't work because it needs a package and not a class.

CodePudding user response：

maybe there's a problem in your application.properties