java:jackson

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--- java:jackson [2019/02/07 20:04]
kwon37xi
+++ java:jackson [2019/11/21 15:28]
kwon37xi
@@ 줄 23: / 줄 23: @@
   * 해당 클래스 JSON 문자열을 받아서 객체를 생성할 때 변환기를 직접 만들고자 할 때 구현한다.
   * [[https://fasterxml.github.io/jackson-annotations/javadoc/2.7/com/fasterxml/jackson/annotation/JsonCreator.html|@JsonCreator]]
+  * [[https://grokonez.com/java/jackson-jsoncreator-example-deserialize-jsoncreator|Jackson @JsonCreator example - Deserialize with @JsonCreator - grokonez]]
+<code java>
+public class Customer {
+    private String id;
+    private String name;
+    private String address;
+    public Customer() {
+    }
+    @JsonCreator
+    public Customer(
+            @JsonProperty("id") String id,
+            @JsonProperty("fullname") String name,
+            @JsonProperty("location") String address) {
+        System.out.println("run constructor...");
+        this.id = id;
+        this.name = name;
+        this.address = address;
+    }
+    @Override
+    public String toString() {
+        return "Customer [id=" + id + ", name=" + name + ", address=" + address + "]";
+    }
+}
+</code>
 ===== Performance =====
   * [[http://wiki.fasterxml.com/JacksonBestPracticesPerformance|Jackson Best Practice Performance]]
@@ 줄 113: / 줄 139: @@
   * [[https://stackoverflow.com/questions/4783421/how-can-i-include-raw-json-in-an-object-using-jackson|java - How can I include raw JSON in an object using Jackson? - Stack Overflow]]
+===== JsonNodeFactory =====
+  * [[https://fasterxml.github.io/jackson-databind/javadoc/2.1.0/com/fasterxml/jackson/databind/node/JsonNodeFactory.html|JsonNodeFactory]]
+  * ''JsonNodeFactory.instance.objectNode()'' 를 통해 원하는 형태의 JSON 을 생성할 수 있다.
+  * [[java:json|Java JSON]]
+<code java>
+JsonNodeFactory.instance.objectNode().put("id", 123L)
+            .put("name", "JSONNODE")
+            .put("age", 12)
+            .toString();
+</code>
 ===== 참고 =====

java/jackson.txt · 마지막으로 수정됨: 2023/10/04 14:47 저자 kwon37xi