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golang json 返回不需要輸出的 struct 字段

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golang json 返回不需要輸出的 struct 字段

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達令說 2018-08-18 11:28:09

type Goods struct { IDAutoModel CategoryIDModel // 商品分類 NameModel DescriptionModel // 商品特色描述 Stores uint64 `json:"stores"` // 庫存數 MinScore uint64 `json:"min_score"` // 積分 Weight float64 `json:"weight"` // 重量 TimeAllModel Category GoodsCategory `json:"category,omitempty"` }在返回 Goods json 列表的時候不想輸出 Category struct。如何刪除 struct 里面的 struct返回 json 公用一個 struct 有的接口返回不需要 Category 沒有關聯查，所以是空的 struct有些地方是需要輸出 Category 的，比如商品詳情頁，商品列表頁就不需要輸出商品關聯的 Categoryomitempty 和 - 根本不行

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犯罪嫌疑人X

TA貢獻2080條經驗獲得超4個贊

Struct values encode as JSON objects. Each exported struct field becomes a member of the object unless

the field's tag is "-", or
the field is empty and its tag specifies the "omitempty" option.

The empty values are false, 0, any nil pointer or interface value, and any array, slice, map, or string of length zero. The object's default key string is the struct field name but can be specified in the struct field's tag value. The "json" key in the struct field's tag value is the key name, followed by an optional comma and options. Examples:

// Field is ignored by this package.
Field int json:"-"

// Field appears in JSON as key "myName".
Field int json:"myName"

// Field appears in JSON as key "myName" and
// the field is omitted from the object if its value is empty,
// as defined above.
Field int json:"myName,omitempty"

// Field appears in JSON as key "Field" (the default), but
// the field is skipped if empty.
// Note the leading comma.
Field int json:",omitempty"
The "string" option signals that a field is stored as JSON inside a JSON-encoded string. It applies only to fields of string, floating point, integer, or boolean types. This extra level of encoding is sometimes used when communicating with JavaScript programs:

Int64String int64 json:",string"
The key name will be used if it's a non-empty string consisting of only Unicode letters, digits, dollar signs, percent signs, hyphens, underscores and slashes.

GO官方Json包

反對回復 2018-08-19

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golang json 返回 不需要輸出的 struct 字段

golang json 返回 不需要輸出的 struct 字段

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golang json 返回不需要輸出的 struct 字段

golang json 返回不需要輸出的 struct 字段