#2 feat: 채용공고 등록/조회 API 개발 (#5)

Co-authored-by: kanghoon-choi <[email protected]>

build.gradle

@@ -24,6 +24,7 @@ repositories {
 dependencies {
 	implementation 'org.springframework.boot:spring-boot-starter-data-jpa'
 	implementation 'org.springframework.boot:spring-boot-starter-web'
+	implementation 'org.springframework.boot:spring-boot-starter-validation'
 	compileOnly 'org.projectlombok:lombok'
 	developmentOnly 'org.springframework.boot:spring-boot-devtools'
 	runtimeOnly 'com.h2database:h2'

src/main/java/com/example/jehunonboarding/controller/JobPostingController.java

@@ -3,16 +3,27 @@
 import com.example.jehunonboarding.controller.request.*;
 import com.example.jehunonboarding.controller.response.CommonResponse;
 import com.example.jehunonboarding.controller.response.JobPostingFindDetailResponse;
-import com.example.jehunonboarding.controller.response.JobPostingSearchResponse;
+import com.example.jehunonboarding.controller.response.JobPostingsSearchResponse;
+import com.example.jehunonboarding.domain.JobPosting;
+import com.example.jehunonboarding.domain.JobPostingService;
+import jakarta.validation.Valid;
+import lombok.RequiredArgsConstructor;
+import org.springframework.data.domain.Pageable;
 import org.springframework.http.HttpStatus;
 import org.springframework.http.ResponseEntity;
 import org.springframework.web.bind.annotation.*;
 
+import java.util.List;
+
 @RestController
+@RequiredArgsConstructor
 public class JobPostingController {
 
+    private final JobPostingService jobPostingService;
+
     @PostMapping("/v1/job-postings")
-    public ResponseEntity<CommonResponse> register(@RequestBody JobPostingRegisterRequest request) {
+    public ResponseEntity<CommonResponse> register(@Valid @RequestBody JobPostingRegisterRequest request) {
+        jobPostingService.register(request.toDomain());
         return new ResponseEntity(new CommonResponse(true), HttpStatus.OK);
     }
 
@@ -27,8 +38,9 @@ public ResponseEntity<CommonResponse> remove(@PathVariable int jobPostingId) {
     }
 
     @GetMapping("/v1/job-postings")
-    public ResponseEntity<JobPostingSearchResponse> search(String keyword) {
-        return new ResponseEntity(new JobPostingSearchResponse(), HttpStatus.OK);
+    public ResponseEntity<JobPostingsSearchResponse> search(String keyword, Pageable pageable) {
+        List<JobPosting> jobPostings = jobPostingService.search(pageable, keyword);
+        return new ResponseEntity(new JobPostingsSearchResponse(jobPostings), HttpStatus.OK);
     }
 
     @GetMapping("/v1/job-postings/{jobPostingId}")

src/main/java/com/example/jehunonboarding/controller/request/JobPostingRegisterRequest.java

@@ -1,15 +1,23 @@
 package com.example.jehunonboarding.controller.request;
 
+import com.example.jehunonboarding.domain.JobPostingRegisterInfo;
+import jakarta.validation.constraints.NotNull;
 import lombok.Data;
 
 @Data
 public class JobPostingRegisterRequest {
+    @NotNull
     private int companyId;
-    private String companyName;
-    private String nation;
-    private String region;
+    @NotNull
     private String jobPosition;
+    @NotNull
     private long jobCompensation;
+    @NotNull
     private String description;
+    @NotNull
     private String skill;
+
+    public JobPostingRegisterInfo toDomain() {
+        return new JobPostingRegisterInfo(companyId, jobPosition, jobCompensation, description, skill);
+    }
 }

src/main/java/com/example/jehunonboarding/controller/response/JobPostingsSearchResponse.java

@@ -0,0 +1,41 @@
+package com.example.jehunonboarding.controller.response;
+
+import com.example.jehunonboarding.domain.JobPosting;
+import lombok.Data;
+
+import java.util.List;
+import java.util.stream.Collectors;
+
+@Data
+public class JobPostingsSearchResponse {
+    private List<JobPostingResponse> items;
+
+    public JobPostingsSearchResponse(List<JobPosting> jobPostings) {
+        this.items = jobPostings.stream()
+                .map(JobPostingResponse::new)
+                .collect(Collectors.toList());
+    }
+
+    @Data
+    static class JobPostingResponse {
+        private int companyId;
+        private String companyName;
+        private String nation;
+        private String region;
+        private String jobPosition;
+        private long jobCompensation;
+        private String skill;
+
+        public JobPostingResponse(JobPosting jobPosting) {
+            this.companyId = jobPosting.getCompanyId();
+            this.companyName = jobPosting.getCompanyName();
+            this.nation = jobPosting.getNation();
+            this.region = jobPosting.getRegion();
+            this.jobPosition = jobPosting.getJobPosition();
+            this.jobCompensation = jobPosting.getJobCompensation();
+            this.skill = jobPosting.getSkill();
+        }
+    }
+}
+
+

src/main/java/com/example/jehunonboarding/domain/Company.java

@@ -0,0 +1,20 @@
+package com.example.jehunonboarding.domain;
+
+import jakarta.persistence.*;
+
+@Entity
+@Table(name = "company")
+public class Company {
+    @Id
+    @GeneratedValue
+    private int id;
+
+    @Column(nullable = false)
+    private String companyName;
+
+    @Column(nullable = false)
+    private String nation;
+
+    @Column(nullable = false)
+    private String region;
+}

src/main/java/com/example/jehunonboarding/controller/response/JobPostingSearchResponse.java → src/main/java/com/example/jehunonboarding/domain/JobPosting.java

@@ -1,14 +1,17 @@
-package com.example.jehunonboarding.controller.response;
+package com.example.jehunonboarding.domain;
 
-import lombok.Data;
+import lombok.AllArgsConstructor;
+import lombok.Getter;
 
-@Data
-public class JobPostingSearchResponse {
+@Getter
+@AllArgsConstructor
+public class JobPosting {
     private int companyId;
     private String companyName;
     private String nation;
     private String region;
     private String jobPosition;
     private long jobCompensation;
+    private String description;
     private String skill;
 }

src/main/java/com/example/jehunonboarding/domain/JobPostingEntity.java

@@ -0,0 +1,37 @@
+package com.example.jehunonboarding.domain;
+
+import jakarta.persistence.*;
+import lombok.NoArgsConstructor;
+
+@Entity
+@Table(name = "job_posting")
+@NoArgsConstructor
+public class JobPostingEntity {
+    @Id
+    @GeneratedValue
+    @Column(nullable = false)
+    private Long id;
+
+    @Column(nullable = false)
+    private int companyId;
+
+    @Column(nullable = false)
+    private String jobPosition;
+
+    @Column(nullable = false)
+    private long jobCompensation;
+
+    @Column(nullable = false)
+    private String description;
+
+    @Column(nullable = false)
+    private String skill;
+
+    public JobPostingEntity(int companyId, String jobPosition, long jobCompensation, String description, String skill) {
+        this.companyId = companyId;
+        this.jobPosition = jobPosition;
+        this.jobCompensation = jobCompensation;
+        this.description = description;
+        this.skill = skill;
+    }
+}

src/main/java/com/example/jehunonboarding/domain/JobPostingRegisterInfo.java

@@ -0,0 +1,14 @@
+package com.example.jehunonboarding.domain;
+
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+
+@Getter
+@AllArgsConstructor
+public class JobPostingRegisterInfo {
+    private int companyId;
+    private String jobPosition;
+    private long jobCompensation;
+    private String description;
+    private String skill;
+}

src/main/java/com/example/jehunonboarding/domain/JobPostingService.java

@@ -0,0 +1,36 @@
+package com.example.jehunonboarding.domain;
+
+import com.example.jehunonboarding.repository.CompanyRepository;
+import com.example.jehunonboarding.repository.JobPostingRepository;
+import lombok.RequiredArgsConstructor;
+import org.springframework.data.domain.Pageable;
+import org.springframework.stereotype.Service;
+
+import java.util.List;
+
+@Service
+@RequiredArgsConstructor
+public class JobPostingService {
+
+    private final JobPostingRepository jobPostingRepository;
+    private final CompanyRepository companyRepository;
+
+    public void register(JobPostingRegisterInfo registerInfo) {
+        companyRepository.findById(registerInfo.getCompanyId())
+                .orElseThrow(() -> new IllegalArgumentException("존재하지 않는 회사입니다."));
+
+        jobPostingRepository.save(
+                new JobPostingEntity(
+                        registerInfo.getCompanyId(),
+                        registerInfo.getJobPosition(),
+                        registerInfo.getJobCompensation(),
+                        registerInfo.getDescription(),
+                        registerInfo.getSkill()
+                )
+        );
+    }
+
+    public List<JobPosting> search(Pageable pageable, String keyword) {
+        return jobPostingRepository.findByKeyword(pageable, keyword);
+    }
+}

src/main/java/com/example/jehunonboarding/repository/CompanyRepository.java

@@ -0,0 +1,7 @@
+package com.example.jehunonboarding.repository;
+
+import com.example.jehunonboarding.domain.Company;
+import org.springframework.data.jpa.repository.JpaRepository;
+
+public interface CompanyRepository extends JpaRepository<Company, Integer> {
+}

src/main/java/com/example/jehunonboarding/repository/JobPostingRepository.java

@@ -0,0 +1,15 @@
+package com.example.jehunonboarding.repository;
+
+import com.example.jehunonboarding.domain.JobPosting;
+import com.example.jehunonboarding.domain.JobPostingEntity;
+import org.springframework.data.domain.Pageable;
+import org.springframework.data.jpa.repository.JpaRepository;
+import org.springframework.data.jpa.repository.Query;
+
+import java.util.List;
+
+public interface JobPostingRepository extends JpaRepository<JobPostingEntity, Long> {
+
+    @Query("SELECT new com.example.jehunonboarding.domain.JobPosting(c.id, c.companyName, c.nation, c.region, jp.jobPosition, jp.jobCompensation, jp.description, jp.skill) FROM JobPostingEntity jp INNER JOIN Company c ON jp.companyId = c.id WHERE jp.jobPosition LIKE %:keyword% OR c.companyName LIKE %:keyword%")
+    List<JobPosting> findByKeyword(Pageable pageable, String keyword);
+}

src/main/resources/application.yaml

@@ -0,0 +1,17 @@
+spring:
+  datasource:
+    url: jdbc:h2:mem:testdb
+    username: sa
+    password:
+    generate-unique-name: false
+  jpa:
+    defer-datasource-initialization: true
+    properties:
+      hibernate:
+        format_sql: true
+        show_sql: true
+        ddl-auto: create
+        database-platform: org.hibernate.dialect.H2Dialect
+  h2:
+    console:
+      enabled: true

src/main/resources/data.sql

@@ -0,0 +1 @@
+INSERT INTO company (id, company_name, nation, region) VALUES (1, '제훈테크', '한국', '서울');