Feat: json 관련 어노테이션 - @JsonInclude

json-util/src/main/java/com/example/demo/application/CustomController.java

@@ -8,8 +8,14 @@
 import com.example.demo.application.dto.MemberJsonIgnorePropertySettersResponse;
 import com.example.demo.application.dto.MemberJsonIgnoreResponse;
 import com.example.demo.application.dto.MemberJsonIgnoreTypeResponse;
+import com.example.demo.application.dto.jsoninclude.JsonIncludeAlwaysResponse;
+import com.example.demo.application.dto.jsoninclude.JsonIncludeNonAbsentResponse;
+import com.example.demo.application.dto.jsoninclude.JsonIncludeNonDefaultResponse;
+import com.example.demo.application.dto.jsoninclude.JsonIncludeNonEmptyResponse;
+import com.example.demo.application.dto.jsoninclude.JsonIncludeNonNullResponse;
 import com.example.demo.infrastructure.MemberRepository;
 import com.example.demo.infrastructure.TeamRepository;
+import java.util.ArrayList;
 import java.util.List;
 import lombok.RequiredArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
@@ -68,6 +74,31 @@ public List<MemberJsonIgnoreTypeResponse> getDataUsingJsonIgnoreType() {
         return memberRepository.findAll().stream().map(MemberJsonIgnoreTypeResponse::new).toList();
     }
 
+    @GetMapping("/include-always")
+    public JsonIncludeAlwaysResponse getDataUsingJsonIncludeByAlways() {
+        return JsonIncludeAlwaysResponse.create();
+    }
+
+    @GetMapping("/include-non-null")
+    public JsonIncludeNonNullResponse getDataUsingJsonIncludeByNonNull() {
+        return JsonIncludeNonNullResponse.create();
+    }
+
+    @GetMapping("/include-non-absent")
+    public JsonIncludeNonAbsentResponse getDataUsingJsonIncludeByNonAbsent() {
+        return JsonIncludeNonAbsentResponse.create();
+    }
+
+    @GetMapping("/include-non-empty")
+    public JsonIncludeNonEmptyResponse getDataUsingJsonIncludeByNonEmpty() {
+        return JsonIncludeNonEmptyResponse.create();
+    }
+
+    @GetMapping("/include-non-default")
+    public JsonIncludeNonDefaultResponse getDataUsingJsonIncludeByNonDefault() {
+        return JsonIncludeNonDefaultResponse.create();
+    }
+
 
 
 }

json-util/src/main/java/com/example/demo/application/dto/jsoninclude/JsonIncludeAlwaysResponse.java

@@ -0,0 +1,40 @@
+package com.example.demo.application.dto.jsoninclude;
+
+import com.example.demo.application.MemberRole;
+import com.example.demo.domain.Team;
+import com.fasterxml.jackson.annotation.JsonInclude;
+import com.fasterxml.jackson.annotation.JsonInclude.Include;
+import java.util.ArrayList;
+import java.util.List;
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+
+@Getter
+@AllArgsConstructor
+@JsonInclude(Include.ALWAYS)
+public class JsonIncludeAlwaysResponse {
+    private int defaultInt;
+    private int normalInt;
+
+    private Integer defaultWrapper;
+    private Integer normalWrapper;
+
+    private String nullString;
+    private String emptyString;
+    private String normalString;
+
+    private Team nullReference;
+    private Team normalReference;
+
+    private List<String> emptyList;
+    private List<String> normalList;
+
+    public static JsonIncludeAlwaysResponse create() {
+        return new JsonIncludeAlwaysResponse(0, 10,
+                0, 10,
+                null, "", "string",
+                null, new Team("teamA"),
+                new ArrayList<>(), List.of("str1")
+        );
+    }
+}

json-util/src/main/java/com/example/demo/application/dto/jsoninclude/JsonIncludeNonAbsentResponse.java

@@ -0,0 +1,40 @@
+package com.example.demo.application.dto.jsoninclude;
+
+import com.example.demo.application.MemberRole;
+import com.example.demo.domain.Team;
+import com.fasterxml.jackson.annotation.JsonInclude;
+import com.fasterxml.jackson.annotation.JsonInclude.Include;
+import java.util.ArrayList;
+import java.util.List;
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+
+@Getter
+@AllArgsConstructor
+@JsonInclude(Include.NON_ABSENT)
+public class JsonIncludeNonAbsentResponse {
+    private int defaultInt;
+    private int normalInt;
+
+    private Integer defaultWrapper;
+    private Integer normalWrapper;
+
+    private String nullString;
+    private String emptyString;
+    private String normalString;
+
+    private Team nullReference;
+    private Team normalReference;
+
+    private List<String> emptyList;
+    private List<String> normalList;
+
+    public static JsonIncludeNonAbsentResponse create() {
+        return new JsonIncludeNonAbsentResponse(0, 10,
+                0, 10,
+                null, "", "string",
+                null, new Team("teamA"),
+                new ArrayList<>(), List.of("str1")
+        );
+    }
+}

json-util/src/main/java/com/example/demo/application/dto/jsoninclude/JsonIncludeNonDefaultResponse.java

@@ -0,0 +1,40 @@
+package com.example.demo.application.dto.jsoninclude;
+
+import com.example.demo.application.MemberRole;
+import com.example.demo.domain.Team;
+import com.fasterxml.jackson.annotation.JsonInclude;
+import com.fasterxml.jackson.annotation.JsonInclude.Include;
+import java.util.ArrayList;
+import java.util.List;
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+
+@Getter
+@AllArgsConstructor
+@JsonInclude(Include.NON_DEFAULT)
+public class JsonIncludeNonDefaultResponse {
+    private int defaultInt;
+    private int normalInt;
+
+    private Integer defaultWrapper;
+    private Integer normalWrapper;
+
+    private String nullString;
+    private String emptyString;
+    private String normalString;
+
+    private Team nullReference;
+    private Team normalReference;
+
+    private List<String> emptyList;
+    private List<String> normalList;
+
+    public static JsonIncludeNonDefaultResponse create() {
+        return new JsonIncludeNonDefaultResponse(0, 10,
+                0, 10,
+                null, "", "string",
+                null, new Team("teamA"),
+                new ArrayList<>(), List.of("str1")
+        );
+    }
+}

json-util/src/main/java/com/example/demo/application/dto/jsoninclude/JsonIncludeNonEmptyResponse.java

@@ -0,0 +1,40 @@
+package com.example.demo.application.dto.jsoninclude;
+
+import com.example.demo.application.MemberRole;
+import com.example.demo.domain.Team;
+import com.fasterxml.jackson.annotation.JsonInclude;
+import com.fasterxml.jackson.annotation.JsonInclude.Include;
+import java.util.ArrayList;
+import java.util.List;
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+
+@Getter
+@AllArgsConstructor
+@JsonInclude(Include.NON_EMPTY)
+public class JsonIncludeNonEmptyResponse {
+    private int defaultInt;
+    private int normalInt;
+
+    private Integer defaultWrapper;
+    private Integer normalWrapper;
+
+    private String nullString;
+    private String emptyString;
+    private String normalString;
+
+    private Team nullReference;
+    private Team normalReference;
+
+    private List<String> emptyList;
+    private List<String> normalList;
+
+    public static JsonIncludeNonEmptyResponse create() {
+        return new JsonIncludeNonEmptyResponse(0, 10,
+                0, 10,
+                null, "", "string",
+                null, new Team("teamA"),
+                new ArrayList<>(), List.of("str1")
+        );
+    }
+}

json-util/src/main/java/com/example/demo/application/dto/jsoninclude/JsonIncludeNonNullResponse.java

@@ -0,0 +1,40 @@
+package com.example.demo.application.dto.jsoninclude;
+
+import com.example.demo.application.MemberRole;
+import com.example.demo.domain.Team;
+import com.fasterxml.jackson.annotation.JsonInclude;
+import com.fasterxml.jackson.annotation.JsonInclude.Include;
+import java.util.ArrayList;
+import java.util.List;
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+
+@Getter
+@AllArgsConstructor
+@JsonInclude(Include.NON_NULL)
+public class JsonIncludeNonNullResponse {
+    private int defaultInt;
+    private int normalInt;
+
+    private Integer defaultWrapper;
+    private Integer normalWrapper;
+
+    private String nullString;
+    private String emptyString;
+    private String normalString;
+
+    private Team nullReference;
+    private Team normalReference;
+
+    private List<String> emptyList;
+    private List<String> normalList;
+
+    public static JsonIncludeNonNullResponse create() {
+        return new JsonIncludeNonNullResponse(0, 10,
+                0, 10,
+                null, "", "string",
+                null, new Team("teamA"),
+                new ArrayList<>(), List.of("str1")
+        );
+    }
+}