application.properties에 sql문 보여주기 추가/ CORS

<application>

 

//테이블 (형식이 다를때..?) 싹 다 지우고 다시 만든다

spring.jpa.hibernate.ddl-auto=create-drop


//sql문 예쁘게 보여주기
spring.jpa.properties.hibernate.format_sql= true
spring.jpa.properties.hibernate.show_sql= true

 

 

<build.gradle>
    //aws mysql
    //implementation 'org.springframework.boot:spring-boot-starter-data-jpa'
    runtimeOnly 'mysql:mysql-connector-java'

 

CORS 해결

<config>

@Bean
public CorsConfigurationSource configurationSource(){
CorsConfiguration configuration = new CorsConfiguration();
configuration.setAllowedOriginPatterns(Arrays.asList("*"));
configuration.setAllowedMethods(Arrays.asList("POST","GET","DELETE","PUT", "PATCH"));
configuration.setAllowedHeaders(Arrays.asList("*"));
configuration.setAllowCredentials(true);
configuration.addExposedHeader("*");
UrlBasedCorsConfigurationSource source = new UrlBasedCorsConfigurationSource();
source.registerCorsConfiguration("/**", configuration);
return source;
}

 

 

위에서

configuration.setAllowedHeaders(Arrays.asList("*"));
configuration.setAllowCredentials(true);
configuration.addExposedHeader("*");

이게 핵심인지도..?

 

이건가...???

@Configuration
public class WebConfig implements WebMvcConfigurer {

    @Override
    public void addCorsMappings(CorsRegistry registry) {
        registry.addMapping("/**")
                .allowedOrigins("http://localhost:3000")
                .allowedMethods(HttpMethod.POST.name(), HttpMethod.GET.name(),
                        HttpMethod.PUT.name(), HttpMethod.DELETE.name())
                .exposedHeaders("*");
    }
}