init 251117

examples/jsonexample/json_parser.go

@@ -0,0 +1,62 @@
+package jsonexample
+
+import (
+	"encoding/json"
+	"fmt"
+)
+
+type Person struct {
+	Name    string   `json:"name"`
+	Age     int      `json:"age"`
+	History []string `json:"history"`
+}
+
+func JsonParsingExample() {
+	obj := map[string]interface{}{
+		"name": "홍길동",
+		"age":  623,
+		"history": []string{
+			"1900-양반집을 털었다",
+			"1910-왕에게 잡혀감",
+		},
+	}
+
+	b, err := json.Marshal(obj)
+	if err != nil {
+		panic(err)
+	}
+
+	fmt.Println(string(b))
+
+	obj2 := map[string]interface{}{}
+	err = json.Unmarshal(b, &obj2)
+	if err != nil {
+		panic(err)
+	}
+
+	fmt.Println(obj2["age"])
+
+	p := Person{
+		Name: "Godopu2",
+		Age:  70,
+		History: []string{
+			"1900-양반집을 털었다",
+			"1910-왕에게 잡혀감",
+		},
+	}
+	b, err = json.Marshal(&p)
+
+	if err != nil {
+		panic(err)
+	}
+
+	fmt.Println(string(b))
+
+	var p2 Person
+	err = json.Unmarshal(b, &p2)
+	if err != nil {
+		panic(err)
+	}
+
+	fmt.Println(p2.Age)
+}