util/gutil: gconv struct to map bug, omitempty takes no effect

[nogolang]

这是官方的案例
https://goframe.org/pages/viewpage.action?pageId=1114356

下面案例中，理论上nickname不应该出现在输出结果中
同样的案例，使用mapstructure库测试是没有问题的

package main

import (
	"github.com/gogf/gf/v2/frame/g"
	"github.com/gogf/gf/v2/util/gconv"
)

func main() {
	type User struct {
		Uid      int
		Name     string `c:"-"`
		NickName string `c:"nickname, omitempty"`
		Pass1    string `c:"password1"`
		Pass2    string `c:"password2"`
	}
	user := User{
		Uid:   100,
		Name:  "john",
		Pass1: "123",
		Pass2: "456",
	}
	g.Dump(gconv.Map(user))
}

输出

{
    "Uid": 100,
    "password1": "123",
    "password2": "456",
    "nickname": "",
}

[wsy9981999]

这个时候还是用json标签把

[Issues-translate-bot]

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---

At this time it is better to use json tags

[nogolang]

这个时候还是用json标签把

这个和json没有关系，之所以结果是json是因为使用了g.Dump把map转换为了json。
问题的本质是map本身不应该含有nickname字段，在mapstructure库测试是没有问题的

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---

At this time, it is better to use json tags

This has nothing to do with json. The reason why the result is json is because g.Dump is used to convert map to json.
The essence of the problem is that the map itself should not contain the nickname field. There is no problem when testing in the mapstructure library.

[wwwfeng]

我看了一下这个gconv.Map 是有option参数的，比如：

			g.Dump(gconv.Map(user, gconv.MapOption{
						OmitEmpty: true,
					}))

设置参数以后输出的结果就是下面的样子，我不知道这是不是属于特性

{
    "password2": "456",
    "Uid":       100,
    "password1": "123",
}

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---

I took a look and this gconv.Map has option parameters, such as:

g.Dump(gconv.Map(user, gconv.MapOption{
OmitEmpty: true,
}))

After setting the parameters, the output result is as follows. I don’t know if this is a feature.

{
    "password2": "456",
    "Uid": 100,
    "password1": "123",
}

[nogolang]

看样子必须使用option选项才行

我看了一下这个gconv.Map 是有option参数的，比如：

			g.Dump(gconv.Map(user, gconv.MapOption{
						OmitEmpty: true,
					}))

设置参数以后输出的结果就是下面的样子，我不知道这是不是属于特性

{
    "password2": "456",
    "Uid":       100,
    "password1": "123",
}

[Issues-translate-bot]

Bot detected the issue body's language is not English, translate it automatically. 👯👭🏻🧑‍🤝‍🧑👫🧑🏿‍🤝‍🧑🏻👩🏾‍🤝‍👨🏿👬🏿

---

It seems that you must use the option option.

I took a look and this gconv.Map has option parameters, such as:

g.Dump(gconv.Map(user, gconv.MapOption{
OmitEmpty: true,
}))

After setting the parameters, the output result is as follows. I don’t know if this is a feature.

{
"password2": "456",
"Uid": 100,
"password1": "123",
}