feat: 예금 조회 API (조건 별 조회 가능) 구현 (#36)

build.gradle

@@ -2,7 +2,6 @@ plugins {
 	id 'java'
 	id 'org.springframework.boot' version '3.1.5'
 	id 'io.spring.dependency-management' version '1.1.3'
-	id 'com.ewerk.gradle.plugins.querydsl' version '1.0.10'
 }
 
 group = 'com'
@@ -43,7 +42,10 @@ dependencies {
 	runtimeOnly group: 'io.jsonwebtoken', name: 'jjwt-jackson', version: '0.11.5'
 
 	//query dsl
-	implementation 'com.querydsl:querydsl-jpa'
+	implementation 'com.querydsl:querydsl-jpa:5.0.0:jakarta'
+	annotationProcessor "com.querydsl:querydsl-apt:${dependencyManagement.importedProperties['querydsl.version']}:jakarta"
+	annotationProcessor "jakarta.persistence:jakarta.persistence-api"
+	annotationProcessor "jakarta.annotation:jakarta.annotation-api"
 
 	annotationProcessor 'org.springframework.boot:spring-boot-configuration-processor'
 	annotationProcessor 'org.projectlombok:lombok'
@@ -54,23 +56,4 @@ dependencies {
 
 tasks.named('test') {
 	useJUnitPlatform()
-}
-
-def querydslDir = "$buildDir/generated/querydsl"
-
-querydsl {
-	jpa = true
-	querydslSourcesDir = querydslDir
-}
-
-sourceSets {
-	main.java.srcDir querydslDir
-}
-
-configurations {
-	querydsl.extendsFrom compileClasspath
-}
-
-compileQuerydsl {
-	options.annotationProcessorPath = configurations.querydsl
 }

src/main/java/com/finfellows/domain/product/application/FinancialProductService.java

@@ -0,0 +1,16 @@
+package com.finfellows.domain.product.application;
+
+import com.finfellows.domain.product.dto.condition.DepositSearchCondition;
+import com.finfellows.domain.product.dto.response.SearchDepositRes;
+import com.finfellows.global.config.security.token.UserPrincipal;
+import com.finfellows.global.payload.PagedResponse;
+import org.springframework.data.domain.Page;
+import org.springframework.data.domain.Pageable;
+
+import java.util.List;
+
+public interface FinancialProductService {
+
+    PagedResponse<SearchDepositRes> findDepositProducts(UserPrincipal userPrincipal, DepositSearchCondition depositSearchCondition, Pageable pageable);
+
+}

src/main/java/com/finfellows/domain/product/application/FinancialProductServiceImpl.java

@@ -0,0 +1,30 @@
+package com.finfellows.domain.product.application;
+
+import com.finfellows.domain.product.domain.repository.FinancialProductRepository;
+import com.finfellows.domain.product.dto.condition.DepositSearchCondition;
+import com.finfellows.domain.product.dto.response.SearchDepositRes;
+import com.finfellows.global.config.security.token.UserPrincipal;
+import com.finfellows.global.payload.PagedResponse;
+import lombok.RequiredArgsConstructor;
+import org.springframework.data.domain.Page;
+import org.springframework.data.domain.Pageable;
+import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Transactional;
+
+import java.util.List;
+
+@RequiredArgsConstructor
+@Service
+@Transactional(readOnly = true)
+public class FinancialProductServiceImpl implements FinancialProductService {
+
+    private final FinancialProductRepository financialProductRepository;
+
+    @Override
+    public PagedResponse<SearchDepositRes> findDepositProducts(UserPrincipal userPrincipal, DepositSearchCondition depositSearchCondition, Pageable pageable) {
+        Page<SearchDepositRes> financialProducts = financialProductRepository.findFinancialProducts(depositSearchCondition, pageable);
+
+        return new PagedResponse<>(financialProducts);
+    }
+
+}

src/main/java/com/finfellows/domain/product/domain/FinancialProduct.java

@@ -15,7 +15,6 @@
 @Table(name = "Financial_Product")
 @NoArgsConstructor(access = AccessLevel.PROTECTED)
 @Getter
-@Where(clause = "status = 'ACTIVE'")
 public class FinancialProduct extends BaseEntity {
 
     @Id

src/main/java/com/finfellows/domain/product/domain/FinancialProductOption.java

@@ -12,7 +12,6 @@
 @Table(name = "Financial_Product_Option")
 @NoArgsConstructor(access = AccessLevel.PROTECTED)
 @Getter
-@Where(clause = "status = 'ACTIVE'")
 public class FinancialProductOption extends BaseEntity {
 
     @Id

src/main/java/com/finfellows/domain/product/domain/repository/FinancialProductQueryDslRepository.java

@@ -0,0 +1,15 @@
+package com.finfellows.domain.product.domain.repository;
+
+import com.finfellows.domain.product.domain.FinancialProduct;
+import com.finfellows.domain.product.dto.condition.DepositSearchCondition;
+import com.finfellows.domain.product.dto.response.SearchDepositRes;
+import org.springframework.data.domain.Page;
+import org.springframework.data.domain.Pageable;
+
+import java.util.List;
+
+public interface FinancialProductQueryDslRepository {
+
+    Page<SearchDepositRes> findFinancialProducts(DepositSearchCondition depositSearchCondition, Pageable pageable);
+
+}

src/main/java/com/finfellows/domain/product/domain/repository/FinancialProductQueryDslRepositoryImpl.java

@@ -0,0 +1,82 @@
+package com.finfellows.domain.product.domain.repository;
+
+import com.finfellows.domain.product.domain.FinancialProduct;
+import com.finfellows.domain.product.domain.FinancialProductType;
+import com.finfellows.domain.product.domain.QFinancialProduct;
+import com.finfellows.domain.product.domain.QFinancialProductOption;
+import com.finfellows.domain.product.dto.condition.DepositSearchCondition;
+import com.finfellows.domain.product.dto.response.QSearchDepositRes;
+import com.finfellows.domain.product.dto.response.SearchDepositRes;
+import com.querydsl.core.QueryResults;
+import com.querydsl.core.types.dsl.BooleanExpression;
+import com.querydsl.jpa.impl.JPAQuery;
+import com.querydsl.jpa.impl.JPAQueryFactory;
+import lombok.RequiredArgsConstructor;
+import org.springframework.data.domain.Page;
+import org.springframework.data.domain.PageImpl;
+import org.springframework.data.domain.Pageable;
+import org.springframework.data.support.PageableExecutionUtils;
+import org.springframework.stereotype.Repository;
+
+import java.util.List;
+
+import static com.finfellows.domain.product.domain.QFinancialProduct.*;
+import static com.finfellows.domain.product.domain.QFinancialProductOption.*;
+
+@RequiredArgsConstructor
+@Repository
+public class FinancialProductQueryDslRepositoryImpl implements FinancialProductQueryDslRepository {
+
+    private final JPAQueryFactory queryFactory;
+
+    @Override
+    public Page<SearchDepositRes> findFinancialProducts(DepositSearchCondition depositSearchCondition, Pageable pageable) {
+        List<SearchDepositRes> results = queryFactory
+                .select(new QSearchDepositRes(
+                        financialProduct.id,
+                        financialProduct.productName,
+                        financialProduct.companyName,
+                        financialProductOption.maximumPreferredInterestRate,
+                        financialProductOption.interestRate
+                ))
+                .from(financialProductOption)
+                .leftJoin(financialProductOption.financialProduct, financialProduct)
+                .where(
+                        financialProduct.financialProductType.eq(FinancialProductType.DEPOSIT),
+                        typeEq(depositSearchCondition.getType()),
+                        preferentialConditionEq(depositSearchCondition.getPreferentialCondition()),
+                        termEq(depositSearchCondition.getTerm())
+                )
+                .orderBy(financialProductOption.maximumPreferredInterestRate.desc())
+                .offset(pageable.getOffset())
+                .limit(pageable.getPageSize())
+                .fetch();
+
+        JPAQuery<Long> countQuery = queryFactory
+                .select(financialProductOption.count())
+                .from(financialProductOption)
+                .leftJoin(financialProductOption.financialProduct, financialProduct)
+                .where(
+                        financialProduct.financialProductType.eq(FinancialProductType.DEPOSIT),
+                        typeEq(depositSearchCondition.getType()),
+                        preferentialConditionEq(depositSearchCondition.getPreferentialCondition()),
+                        termEq(depositSearchCondition.getTerm())
+                );
+
+        // Page 객체 생성
+        return PageableExecutionUtils.getPage(results, pageable, countQuery::fetchOne);
+    }
+
+    private BooleanExpression termEq(Integer term) {
+        return term != null ? financialProductOption.savingsTerm.eq(term) : null;
+    }
+
+    private BooleanExpression typeEq(String type) {
+        return type != null ? financialProductOption.financialProduct.joinWay.contains(type) : null;
+    }
+
+    private BooleanExpression preferentialConditionEq(String preferentialCondition) {
+        return preferentialCondition != null ? financialProductOption.financialProduct.specialCondition.contains(preferentialCondition) : null;
+    }
+
+}

src/main/java/com/finfellows/domain/product/domain/repository/FinancialProductRepository.java

@@ -3,6 +3,8 @@
 import com.finfellows.domain.product.domain.FinancialProduct;
 import org.springframework.data.jpa.repository.JpaRepository;
 
-public interface FinancialProductRepository extends JpaRepository<FinancialProduct, Long> {
+import java.util.List;
+
+public interface FinancialProductRepository extends JpaRepository<FinancialProduct, Long>, FinancialProductQueryDslRepository {
 
 }

src/main/java/com/finfellows/domain/product/dto/condition/DepositSearchCondition.java

@@ -0,0 +1,12 @@
+package com.finfellows.domain.product.dto.condition;
+
+import lombok.Data;
+
+@Data
+public class DepositSearchCondition {
+
+    private Integer term;
+    private String type;
+    private String preferentialCondition;
+
+}

src/main/java/com/finfellows/domain/product/dto/response/SearchDepositPagingRes.java

@@ -0,0 +1,7 @@
+package com.finfellows.domain.product.dto.response;
+
+import lombok.Data;
+
+@Data
+public class SearchDepositPagingRes {
+}

src/main/java/com/finfellows/domain/product/dto/response/SearchDepositRes.java

@@ -0,0 +1,24 @@
+package com.finfellows.domain.product.dto.response;
+
+import com.querydsl.core.annotations.QueryProjection;
+import lombok.Data;
+
+@Data
+public class SearchDepositRes {
+
+    private Long id;
+    private String productName;
+    private String bankName;
+    private String maxInterestRate;
+    private String interestRate;
+
+    @QueryProjection
+    public SearchDepositRes(Long id, String productName, String bankName, String maxInterestRate, String interestRate) {
+        this.id = id;
+        this.productName = productName;
+        this.bankName = bankName;
+        this.maxInterestRate = maxInterestRate;
+        this.interestRate = interestRate;
+    }
+
+}

src/main/java/com/finfellows/domain/product/presentation/FinancialProductController.java

@@ -0,0 +1,47 @@
+package com.finfellows.domain.product.presentation;
+
+import com.finfellows.domain.product.application.FinancialProductServiceImpl;
+import com.finfellows.domain.product.dto.condition.DepositSearchCondition;
+import com.finfellows.domain.product.dto.response.SearchDepositRes;
+import com.finfellows.global.config.security.token.CurrentUser;
+import com.finfellows.global.config.security.token.UserPrincipal;
+import com.finfellows.global.payload.ErrorResponse;
+import com.finfellows.global.payload.PagedResponse;
+import com.finfellows.global.payload.ResponseCustom;
+import io.swagger.v3.oas.annotations.Operation;
+import io.swagger.v3.oas.annotations.Parameter;
+import io.swagger.v3.oas.annotations.media.ArraySchema;
+import io.swagger.v3.oas.annotations.media.Content;
+import io.swagger.v3.oas.annotations.media.Schema;
+import io.swagger.v3.oas.annotations.responses.ApiResponse;
+import io.swagger.v3.oas.annotations.responses.ApiResponses;
+import io.swagger.v3.oas.annotations.tags.Tag;
+import lombok.RequiredArgsConstructor;
+import org.springframework.data.domain.Pageable;
+import org.springframework.web.bind.annotation.*;
+
+import java.util.List;
+
+@Tag(name = "FinancialProducts", description = "FinancialProducts API")
+@RestController
+@RequiredArgsConstructor
+@RequestMapping("/financial-products")
+public class FinancialProductController {
+
+    private final FinancialProductServiceImpl financialProductServiceImpl;
+
+    @Operation(summary = "예금 정보 조회", description = "예금 정보를 조건에 따라 조회합니다.")
+    @ApiResponses(value = {
+            @ApiResponse(responseCode = "200", description = "예금 정보 조회 성공", content = {@Content(mediaType = "application/json", array = @ArraySchema(schema = @Schema(implementation = SearchDepositRes.class)))}),
+            @ApiResponse(responseCode = "400", description = "예금 정보 조회 실패", content = {@Content(mediaType = "application/json", schema = @Schema(implementation = ErrorResponse.class))}),
+    })
+    @GetMapping("/deposit")
+    public ResponseCustom<PagedResponse<SearchDepositRes>> findDepositProducts(
+            @Parameter(description = "AccessToken 을 입력해주세요.", required = true) @CurrentUser UserPrincipal userPrincipal,
+            @ModelAttribute DepositSearchCondition depositSearchCondition,
+            Pageable pageable
+    ) {
+        return ResponseCustom.OK(financialProductServiceImpl.findDepositProducts(userPrincipal, depositSearchCondition, pageable));
+    }
+
+}

src/main/java/com/finfellows/global/config/QueryDslConfig.java

@@ -0,0 +1,20 @@
+package com.finfellows.global.config;
+
+import com.querydsl.jpa.impl.JPAQueryFactory;
+import jakarta.persistence.EntityManager;
+import jakarta.persistence.PersistenceContext;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+
+@Configuration
+public class QueryDslConfig {
+
+    @PersistenceContext
+    private EntityManager entityManager;
+
+    @Bean
+    public JPAQueryFactory queryFactory() {
+        return new JPAQueryFactory(entityManager);
+    }
+
+}

src/main/java/com/finfellows/global/config/security/SecurityConfig.java

@@ -60,7 +60,7 @@ public SecurityFilterChain filterChain(HttpSecurity http) throws Exception {
                         .permitAll()
                         .requestMatchers("/login/**", "/auth/**", "/oauth2/**")
                         .permitAll()
-                        .requestMatchers("/blog/**")
+                        .requestMatchers("/blog/**", "/financial-products/**")
                         .permitAll()
                         .anyRequest()
                         .authenticated());

src/main/java/com/finfellows/global/payload/PagedResponse.java

@@ -0,0 +1,22 @@
+package com.finfellows.global.payload;
+
+import lombok.Data;
+import org.springframework.data.domain.Page;
+
+import java.util.List;
+
+@Data
+public class PagedResponse<T> {
+
+    private int pageNumber;
+    private int totalPages;
+    private List<T> content;
+
+    public PagedResponse(Page<T> page) {
+        this.pageNumber = page.getNumber();
+        this.totalPages = page.getTotalPages();
+        this.content = page.getContent();
+    }
+
+}
+