스프링 부트 초기 설정

1. spring security, spring data jpa, spring web, lombok, mysql Dependecy추가
2. 스프링 3.1.1,java 17
3. corsconfig파일

@Configuration
@RequiredArgsConstructor
public class CorsConfig  implements WebMvcConfigurer {
    @Override
    public void addCorsMappings(CorsRegistry registry) {
        ArrayList<String> allowedOriginPatterns = new ArrayList<>();
        allowedOriginPatterns.add("http://localhost:3000");
        allowedOriginPatterns.add("http://localhost:8080");

        String[] patterns = allowedOriginPatterns.toArray(String[]::new);
        registry.addMapping("/**")
                .allowedMethods("*")
                .allowedOriginPatterns(patterns)
                .allowCredentials(true)
                .maxAge(3600L);
    }
}

4. spring security기본설정

@Configuration
@RequiredArgsConstructor
public class CorsConfig  implements WebMvcConfigurer {
    @Override
    public void addCorsMappings(CorsRegistry registry) {
        ArrayList<String> allowedOriginPatterns = new ArrayList<>();
        allowedOriginPatterns.add("http://localhost:3000");
        allowedOriginPatterns.add("http://localhost:8080");

        String[] patterns = allowedOriginPatterns.toArray(String[]::new);
        registry.addMapping("/**")
                .allowedMethods("*")
                .allowedOriginPatterns(patterns)
                .allowCredentials(true)
                .maxAge(3600L);
    }
}