我有下面的结构
type foos struct { Foo string `json:"foo" binding:"required"`}
我有以下端点
func sendFoo(c *gin.Context) {
var json *foos
if err := c.BindJSON(&json); err != nil {
c.AbortWithStatus(400)
return
}
// Do something about json
}
当我发布这个 JSON 时
{"bar":"bar bar"}
错误总是零。我写了 binding required 但它不起作用。但是当我像下面这样更改端点时,
func sendFoo(c *gin.Context) {
var json foos //remove pointer
if err := c.BindJSON(&json); err != nil {
c.AbortWithStatus(400)
return
}
// Do something about json
}
绑定(bind)有效并且错误不为零。为什么?
最佳答案
记录在 binding.go 中, 第 25-32 行:
type StructValidator interface {
// ValidateStruct can receive any kind of type and it should never panic, even if the configuration is not right.
// If the received type is not a struct, any validation should be skipped and nil must be returned.
// If the received type is a struct or pointer to a struct, the validation should be performed.
// If the struct is not valid or the validation itself fails, a descriptive error should be returned.
// Otherwise nil must be returned.
ValidateStruct(interface{}) error
}
在您的例子中,ValidateStruct 收到一个指向结构指针的指针,并且没有进行检查,如记录的那样。
关于json - Golang gin-gonic JSON 绑定(bind),我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/42744784/