오류(4) This application has no explicit mapping for /error, so you are seeing this as a fallback.

[문제 발생]

1. 패키지 경로를 설정하지않아 오류가 발생

 

---

 

[해결 과정]

TestApplication.java에 @ComponentScan(basePackages = "com.example.main") 추가

* basePackages = "해당 패키지 경로"로 작성

 

 

<TestApplication.java>

package com.example.demo;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.autoconfigure.jdbc.DataSourceAutoConfiguration;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;

@SpringBootApplication
@EnableAutoConfiguration(exclude={DataSourceAutoConfiguration.class})
// @EnableAutoConfiguration는 스프링 부트에서 필요한 자동설정에 관한 설정을 해줍
@ComponentScan(basePackages = "com.example.main")

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

}