Gin 框架绑定 JSON 参数使用 jsoniter
Gin 框架绑定 JSON 参数使用 jsoniter simple go build -tags=jsoniter ./... custom implement BindingBody interface // github.com/gin-gonic/gin@v1.6.3/binding/binding.go:36 // Binding describes the interface which needs to be implemented for binding the // data present in the request such as JSON request body, query parameters or // the form POST. type Binding interface { Name() string Bind(*http.Request, interface{}) error } // BindingBody adds BindBody method to Binding. BindBody is similar with Bind, // but it reads the body from supplied bytes instead of req.Body. type BindingBody interface { Binding BindBody([]byte, interface{}) error } package custom import ( "bytes" "fmt" "io" "net/http" jsoniter "github.com/json-iterator/go" "github.com/gin-gonic/gin/binding" ) // BindingJSON 替换Gin默认的binding，支持更丰富JSON功能 var BindingJSON = jsonBinding{} // 可以自定义jsoniter配置或者添加插件 var json = jsoniter.ConfigCompatibleWithStandardLibrary type jsonBinding struct{} func (jsonBinding) Name() string { return "json" } func (jsonBinding) Bind(req *http.Request, obj interface{}) error { if req == nil || req.Body == nil { return fmt.Errorf("invalid request") } return decodeJSON(req.Body, obj) } func (jsonBinding) BindBody(body []byte, obj interface{}) error { return decodeJSON(bytes.NewReader(body), obj) } func decodeJSON(r io.Reader, obj interface{}) error { decoder := json.NewDecoder(r) if binding.EnableDecoderUseNumber { decoder.UseNumber() } if binding.EnableDecoderDisallowUnknownFields { decoder.DisallowUnknownFields() } if err := decoder.Decode(obj); err != nil { return err } return validate(obj) } func validate(obj interface{}) error { if binding.Validator == nil { return nil } return binding.Validator.ValidateStruct(obj) } // binding.JSON 替换成自定义的 ctx.ShouldBindWith(ms, binding.JSON) ctx.ShouldBindBodyWith(ms, binding.JSON)
