spring data jpa : web extension - domain class converter, paging, sort

spring-data-jpa/src/main/java/com/example/springdatajpa/controller/MemberController.java

@@ -0,0 +1,45 @@
+package com.example.springdatajpa.controller;
+
+import com.example.springdatajpa.dto.MemberDto;
+import com.example.springdatajpa.entity.Member;
+import com.example.springdatajpa.repository.MemberRepository;
+import lombok.RequiredArgsConstructor;
+import org.springframework.data.domain.Page;
+import org.springframework.data.domain.Pageable;
+import org.springframework.data.web.PageableDefault;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.PathVariable;
+import org.springframework.web.bind.annotation.RestController;
+
+import javax.annotation.PostConstruct;
+
+@RestController
+@RequiredArgsConstructor
+public class MemberController {
+
+    private final MemberRepository memberRepository;
+
+    @GetMapping("/members/{id}")
+    public String findMember(@PathVariable("id") Long id) {
+        Member member = memberRepository.findById(id).get();
+        return member.getUsername();
+    }
+
+    @GetMapping("/members2/{id}")
+    public String findMember2(@PathVariable("id") Member member) {
+        return member.getUsername();
+    }
+
+    // http://localhost:8080/members?page=1&size=3&sort=age,desc 사용 가능
+    @GetMapping("/members")
+    public Page<MemberDto> list(@PageableDefault(size = 5, sort = "username") Pageable pageable) {
+        return memberRepository.findAll(pageable).map(MemberDto::new);
+    }
+
+    @PostConstruct
+    public void init() {
+        for (int i = 0; i < 100; i++) {
+            memberRepository.save(new Member("member" + i, i));
+        }
+    }
+}

spring-data-jpa/src/main/java/com/example/springdatajpa/dto/MemberDto.java

@@ -1,5 +1,6 @@
 package com.example.springdatajpa.dto;
 
+import com.example.springdatajpa.entity.Member;
 import lombok.AllArgsConstructor;
 import lombok.Data;
 
@@ -10,4 +11,9 @@ public class MemberDto {
     private Long id;
     private String username;
     private String teamName;
+
+    public MemberDto(Member member) {
+        this.id = member.getId();
+        this.username = member.getUsername();
+    }
 }

spring-data-jpa/src/main/resources/application.yml

@@ -12,6 +12,12 @@ spring:
       hibernate:
 #        show_sql: true
         format_sql: true
+  data:
+    web:
+      pageable:
+        default-page-size: 10
+        max-page-size: 2000
+#        one-indexed-parameters: true
 
 logging.level:
   org.hibernate.SQL: debug