querydsl

Author: YoonTaeMinnnn

.DS_Store

@@ -5,8 +5,11 @@
 import org.springframework.data.domain.Page;
 import org.springframework.data.domain.Pageable;
 import org.springframework.data.domain.Slice;
+import org.springframework.validation.BindingResult;
 import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.ModelAttribute;
 import org.springframework.web.bind.annotation.RestController;
+import study.querydsl.dto.MemberDto;
 import study.querydsl.dto.MemberSearchDto;
 import study.querydsl.dto.MemberTeamDto;
 import study.querydsl.entity.Member;
@@ -15,6 +18,7 @@
 
 import java.util.ArrayList;
 import java.util.List;
+import java.util.Optional;
 
 @Slf4j
 @RestController
@@ -27,6 +31,9 @@ public class MemberController {
     @GetMapping("/v1/members")
     public List<MemberTeamDto> searchMemberV1(MemberSearchDto memberSearchDto) {
         Member member = new Member("DSa",25);
+        Optional<Member> findMember = memberRepositoy.findById(5L);
+
+
 
         List<Object> list = new ArrayList<>();
         list.add(member);

querydsl/src/main/java/study/querydsl/controller/MemberController.java

@@ -1,2 +1,50 @@
-package study.querydsl.dto;public class Custom {
+package study.querydsl.dto;
+
+import lombok.Getter;
+import org.springframework.web.multipart.MultipartFile;
+
+import java.io.File;
+import java.io.IOException;
+import java.io.InputStream;
+
+@Getter
+public class Custom implements MultipartFile {
+
+    String name;
+
+    String originalFilename;
+
+    String contentType;
+
+    private final byte[] bytes;
+
+    public Custom(byte[] bytes) {
+        this.bytes = bytes;
+    }
+
+
+    @Override
+    public boolean isEmpty() {
+        return false;
+    }
+
+    @Override
+    public long getSize() {
+        return 0;
+    }
+
+    @Override
+    public byte[] getBytes() throws IOException {
+        return new byte[0];
+    }
+
+    @Override
+    public InputStream getInputStream() throws IOException {
+        return null;
+    }
+
+    @Override
+    public void transferTo(File dest) throws IOException, IllegalStateException {
+
+    }
 }

querydsl/src/main/java/study/querydsl/dto/Custom.java

@@ -5,15 +5,21 @@
 import lombok.Data;
 import lombok.NoArgsConstructor;
 
+import java.io.ByteArrayOutputStream;
+import java.io.IOException;
+
 @Data
 @NoArgsConstructor
 public class MemberDto {
 
     private String username;
     private int age;
 
+
     @QueryProjection
-    public MemberDto(String username, int age) {
+    public MemberDto(String username, int age) throws IOException {
+        ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream();
+        Custom custom = new Custom(byteArrayOutputStream.toByteArray());
         this.username= username;
         this.age= age;
     }

querydsl/src/main/java/study/querydsl/dto/MemberDto.java

@@ -9,14 +9,12 @@
 import com.querydsl.jpa.impl.JPAQueryFactory;
 import lombok.RequiredArgsConstructor;
 import org.springframework.data.domain.*;
+import org.springframework.data.jpa.repository.support.SimpleJpaRepository;
 import org.springframework.data.support.PageableExecutionUtils;
 import study.querydsl.dto.MemberSearchDto;
 import study.querydsl.dto.MemberTeamDto;
 import study.querydsl.dto.QMemberTeamDto;
-import study.querydsl.entity.Member;
-import study.querydsl.entity.QMember;
 
-import javax.persistence.EntityManager;
 import java.util.ArrayList;
 import java.util.List;
 
@@ -84,6 +82,7 @@ public Page<MemberTeamDto> searchPageComplex(MemberSearchDto memberSearchDto, Pa
                 .limit(pageable.getPageSize())
                 .fetch();
 
+
         JPAQuery<Long> countQuery = jpaQueryFactory
                 .select(member.count())
                 .from(member)

querydsl/src/main/java/study/querydsl/repository/MemberRepositoryImpl.java

@@ -13,7 +13,7 @@ spring:
       hibernate:
       show_sql: true
       format_sql: true
-#    open-in-view: false
+    open-in-view: false
   jooq:
     sql-dialect: org.hibernate.dialect.MySQL8Dialect
 

querydsl/src/main/resources/application.yml

@@ -15,6 +15,7 @@
 import com.querydsl.jpa.impl.JPAQuery;
 import com.querydsl.jpa.impl.JPAQueryFactory;
 import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.DisplayName;
 import org.junit.jupiter.api.Test;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.boot.test.context.SpringBootTest;
@@ -29,7 +30,11 @@
 import study.querydsl.entity.*;
 
 import javax.persistence.EntityManager;
+import java.time.LocalDateTime;
+import java.util.HashMap;
 import java.util.List;
+import java.util.Map;
+import java.util.Optional;
 
 //static import
 import static com.querydsl.jpa.JPAExpressions.*;
@@ -168,6 +173,8 @@ public void sort() {
                 .where(member.age.eq(100))
                 .orderBy(member.age.desc(), member.username.asc().nullsLast())
                 .fetch();
+
+
         Member member5 = members.get(0);
         Member member6 = members.get(1);
         Member memberNull = members.get(2);
@@ -217,6 +224,7 @@ public void aggregation() {
      * 팀의 이름과 각 팀의 평균 연령을 구하라
      */
     @Test
+    @DisplayName("간단 테스트")
     public void group() {
         List<Tuple> result = jpaQueryFactory
                 .select(
@@ -581,6 +589,10 @@ public void findDtoByQueryProjection() {
         for (MemberDto memberDto : memberDtos) {
             System.out.println("memberDto = " + memberDto);
         }
+        LocalDateTime time = LocalDateTime.now();
+
+        Optional<String> text = Optional.ofNullable("ads");
+
     }