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                合規國際互聯網加速 OSASE為企業客戶提供高速穩定SD-WAN國際加速解決方案。 廣告
                ## 內置JSON解析器 利用反射實現,通過fieldTag來標識對應的Json值 ~~~ type BasicInfo struct { Name string `json:"name"` Age int `json:"age"` } type JobInfo struct { Skills []string `json:"skills"` } type Employee struct { BasicInfo BasicInfo `json:"basic_info"` JobInfo JobInfo `json:"job_info"` } var jsonStr = `{ "basic_info":{ "name":"Mike", "age":30 }, "job_info":{ "skills":["Java","Go","C"] } }` func TestEmbeddedJsonParse(t *testing.T) { e := new(Employee) err := json.Unmarshal([]byte(jsonStr), e) if err != nil { t.Error(err) } fmt.Println(*e) if v, err := json.Marshal(e); err == nil { fmt.Println(string(v)) } else { t.Error(err) } } ~~~ ### 踩坑筆記 1. 當 struct 中的字段沒有值時,使用 json.Marshal 方法并不會自動忽略這些字段,而是根據字段的類型輸出了他們的默認空值; 2. json.Marshal在字段增加omitempty tag(字段值為零值)時,忽略該字段; 3. 字段在任何情況下都被 json 包忽略:`json:"-"`; 4. json.Marshal()在進行序列化時,只會序列化導出字段(開頭字母大寫的字段);
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