[Spring/SpringBoot] HTTP POST Request JSON객체 읽어오기

Key Point

1. RestController, RequestBody 추가 필요
2. JSON 객체 받는 클래스 따로 생성 필요→ Member 클래스의 username, password으로 JSON 객체 바로 받으면 올바른 데이터 전달 못 받음

Controller 코드

// MemberController.java

import lombok.Data;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

@RestController
@RequestMapping("/member")
public class MemberController {
    @PostMapping("/login")
    public String login(@RequestBody LoginDto loginDto) {
        return "username : %s, password : %s".formatted(loginDto.getUsername(), loginDto.getPassword());
    }

    @Data
    public static class LoginDto {
        private String username;
        private String password;
    }
}

Test 코드

// AuthTests.java

import org.junit.jupiter.api.DisplayName;
import org.junit.jupiter.api.Test;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.autoconfigure.web.servlet.AutoConfigureMockMvc;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.http.MediaType;
import org.springframework.test.context.ActiveProfiles;
import org.springframework.test.web.servlet.MockMvc;
import org.springframework.test.web.servlet.ResultActions;
import org.springframework.transaction.annotation.Transactional;

import java.nio.charset.StandardCharsets;

import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.post;
import static org.springframework.test.web.servlet.result.MockMvcResultHandlers.print;
import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.status;

@SpringBootTest
@AutoConfigureMockMvc
@Transactional
@ActiveProfiles("test")
class AuthTests {
    @Autowired
    private MockMvc mvc;

    @Test
    void t1() throws Exception {
        // When
        ResultActions resultActions = mvc
                .perform(
                        post("/member/login")
                                .content("""
                                        {
                                            "username": "user1",
                                            "password": "1234"
                                        }
                                        """.stripIndent())
                                .contentType(new MediaType(MediaType.APPLICATION_JSON, StandardCharsets.UTF_8))
                )
                .andDo(print());

        // Then
        resultActions
                .andExpect(status().is2xxSuccessful());
    }
}

테스트 통과 위한 추가설정

스프링 시큐리티를 꺼두지 않으면 테스트에서 401(Unauthorized) 에러가 난다. 따라서 스프링 시큐리티 일부 설정들을 임의로 꺼두어야 테스트를 진행할 수 있다.

cf. Http Status 403(Forbidden): 권한없음

package com.ll.exam.sb_jwt_exam.app.security;

import lombok.RequiredArgsConstructor;
import org.springframework.context.annotation.Bean;
import org.springframework.security.config.annotation.authentication.configuration.AuthenticationConfiguration;
import org.springframework.security.config.annotation.web.builders.HttpSecurity;
import org.springframework.security.config.annotation.web.configuration.EnableWebSecurity;
import org.springframework.security.web.SecurityFilterChain;

import static org.springframework.security.config.http.SessionCreationPolicy.STATELESS;

@EnableWebSecurity
@RequiredArgsConstructor
public class SecurityConfig {
    @Bean
    public SecurityFilterChain securityFilterChain(HttpSecurity http, AuthenticationConfiguration authenticationConfiguration) throws Exception {
        http
                .cors().disable() // 타 도메인에서 API 호출 가능
                .csrf().disable() // CSRF 토큰 끄기
                .httpBasic().disable() // httpBaic 로그인 방식 끄기
                .formLogin().disable() // 폼 로그인 방식 끄기
                .sessionManagement(sessionManagement ->
                        sessionManagement.sessionCreationPolicy(STATELESS)
                ); // 세션 사용안함

        return http.build();
    }
}

테스트 통과 console

Http Status = 200
응답(요청 처리) 성공!