框架校验组件内置了数十项常用的校验规则。

校验规则涉及到联合校验的场景时，规则中关联的参数名称会自动按照不区分大小写且忽略特殊字符的形式进行智能匹配。

`required`

格式: required
说明：必需参数，除了支持常见的字符串，也支持Slice/Map类型。

示例：姓名字段Name为必需参数必需不能为空。

func ExampleValidator_Required() {
	type BizReq struct {
		Id   uint   `v:"required"`
		Name string `v:"required"`
	}
	var (
		ctx = context.Background()
		req = BizReq{
			Id: 1,
		}
	)
	if err := g.Validator().CheckStruct(ctx, req); err != nil {
		fmt.Println(err)
	}

	// Output:
	// The Name field is required
}

`required-if`

格式: required-if:field,value,...
说明：必需参数(当任意所给定字段值与所给值相等时，即：当field字段的值为value时，当前验证字段为必须参数)。

示例：当Gender字段为1时WifeName字段必须不为空，当Gender字段为2时HusbandName字段必须不为空。

func ExampleValidator_RequiredIf()  {
	type BizReq struct {
		Id          uint   `v:"required" dc:"Your Id"`
		Name        string `v:"required" dc:"Your name"`
		Gender      uint   `v:"in:0,1,2" dc:"0:Secret;1:Male;2:Female"`
		WifeName    string `v:"required-if:gender,1"`
		HusbandName string `v:"required-if:gender,2"`
	}
	var (
		ctx = context.Background()
		req = BizReq{
			Id:     1,
			Name:   "test",
			Gender: 1,
		}
	)
	if err := g.Validator().CheckStruct(ctx, req); err != nil {
		fmt.Println(err)
	}

	// Output:
	// The WifeName field is required
}

`required-unless`

格式: required-unless:field,value,...
说明：必需参数(当所给定字段值与所给值都不相等时，即：当field字段的值不为value时，当前验证字段为必须参数)。

示例：当Gender不等于0且Gender不等于2时，WifeName必须不为空；当Id不等于0且Gender不等于2时，HusbandName必须不为空。

func ExampleValidator_RequiredUnless()  {
	type BizReq struct {
		Id       	uint   `v:"required" dc:"Your Id"`
		Name     	string `v:"required" dc:"Your name"`
		Gender   	uint   `v:"in:0,1,2" dc:"0:Secret;1:Male;2:Female"`
		WifeName 	string `v:"required-unless:gender,0,gender,2"`
		HusbandName string `v:"required-unless:id,0,gender,2"`
	}
	var (
		ctx = context.Background()
		req = BizReq{
			Id:     1,
			Name:   "test",
			Gender: 1,
		}
	)
	if err := g.Validator().CheckStruct(ctx, req); err != nil {
		fmt.Println(err)
	}

	// Output:
	// The WifeName field is required; The HusbandName field is required
}

`required-with`

格式: required-with:field1,field2,...
说明：必需参数(当所给定任意字段值不为空时)。

示例：当WifeName不为空时，HusbandName必须不为空。

func ExampleValidator_RequiredWith()  {
	type BizReq struct {
		Id       	uint   `v:"required" dc:"Your Id"`
		Name     	string `v:"required" dc:"Your name"`
		Gender   	uint   `v:"in:0,1,2" dc:"0:Secret;1:Male;2:Female"`
		WifeName 	string
		HusbandName string `v:"required-with:WifeName"`
	}
	var (
		ctx = context.Background()
		req = BizReq{
			Id:     	1,
			Name:   	"test",
			Gender:		1,
			WifeName:	"Ann",
		}
	)
	if err := g.Validator().CheckStruct(ctx, req); err != nil {
		fmt.Println(err)
	}

	// Output:
	// The HusbandName field is required
}

`required-with-all`

格式: required-with-all:field1,field2,...
说明：必须参数(当所给定所有字段值都不为空时)。

示例：当Id，Name，Gender，WifeName全部不为空时，HusbandName必须不为空。

func ExampleValidator_RequiredWithAll()  {
	type BizReq struct {
		Id       	uint   `v:"required" dc:"Your Id"`
		Name     	string `v:"required" dc:"Your name"`
		Gender   	uint   `v:"in:0,1,2" dc:"0:Secret;1:Male;2:Female"`
		WifeName 	string
		HusbandName string `v:"required-with-all:Id,Name,Gender,WifeName"`
	}
	var (
		ctx = context.Background()
		req = BizReq{
			Id:     	1,
			Name:   	"test",
			Gender:		1,
			WifeName:	"Ann",
		}
	)
	if err := g.Validator().CheckStruct(ctx, req); err != nil {
		fmt.Println(err)
	}

	// Output:
	// The HusbandName field is required
}

`required-without`

格式: required-without:field1,field2,...
说明：必需参数(当所给定任意字段值为空时)。

示例：当Id或WifeName为空时，HusbandName必须不为空。

func ExampleValidator_RequiredWithout()  {
	type BizReq struct {
		Id       	uint   `v:"required" dc:"Your Id"`
		Name     	string `v:"required" dc:"Your name"`
		Gender   	uint   `v:"in:0,1,2" dc:"0:Secret;1:Male;2:Female"`
		WifeName 	string
		HusbandName string `v:"required-without:Id,WifeName"`
	}
	var (
		ctx = context.Background()
		req = BizReq{
			Id:     	1,
			Name:   	"test",
			Gender:		1,
		}
	)
	if err := g.Validator().CheckStruct(ctx, req); err != nil {
		fmt.Println(err)
	}

	// Output:
	// The HusbandName field is required
}

`required-without-all`

格式: required-without-all:field1,field2,...
说明：必须参数(当所给定所有字段值都为空时)。

示例：当Id和WifeName都为空时，HusbandName必须不为空。

func ExampleValidator_RequiredWithoutAll()  {
	type BizReq struct {
		Id       	uint   `v:"required" dc:"Your Id"`
		Name     	string `v:"required" dc:"Your name"`
		Gender   	uint   `v:"in:0,1,2" dc:"0:Secret;1:Male;2:Female"`
		WifeName 	string
		HusbandName string `v:"required-without-all:Id,WifeName"`
	}
	var (
		ctx = context.Background()
		req = BizReq{
			Name:   	"test",
			Gender:		1,
		}
	)
	if err := g.Validator().CheckStruct(ctx, req); err != nil {
		fmt.Println(err)
	}

	// Output:
	// The HusbandName field is required
}

`date`

格式: date
说明：参数为常用日期类型，日期之间支持的连接符号-或/或.，也支持不带连接符号的8位长度日期，格式如： 2006-01-02, 2006/01/02, 2006.01.02, 20060102

示例：

func ExampleValidator_Date() {
	type BizReq struct {
		Date1 string `v:"date"`
		Date2 string `v:"date"`
		Date3 string `v:"date"`
		Date4 string `v:"date"`
		Date5 string `v:"date"`
	}

	var (
		ctx = context.Background()
		req = BizReq{
			Date1: "2021-10-31",
			Date2: "2021.10.31",
			Date3: "2021-Oct-31",
			Date4: "2021 Octa 31",
			Date5: "2021/Oct/31",
		}
	)
 	if err := g.Validator().CheckStruct(ctx, req); err != nil {
		fmt.Print(gstr.Join(err.Strings(), "\n"))
	}

	// Output:
	// The Date3 value `2021-Oct-31` is not a valid date
	// The Date4 value `2021 Octa 31` is not a valid date
	// The Date5 value `2021/Oct/31` is not a valid date
}

`datetime`

格式: datetime
说明：参数为常用日期时间类型，其中日期之间支持的连接符号只支持-，格式如： 2006-01-02 12:00:00

示例：

func ExampleValidator_Datetime() {
	type BizReq struct {
		Date1 string `v:"datetime"`
		Date2 string `v:"datetime"`
		Date3 string `v:"datetime"`
		Date4 string `v:"datetime"`
	}

 	var (
		ctx = context.Background()
		req = BizReq{
			Date1: "2021-11-01 23:00:00",
			Date2: "2021-11-01 23:00",		// error
			Date3: "2021/11/01 23:00:00",	// error
			Date4: "2021/Dec/01 23:00:00",	// error
		}
	) 	
	if err := g.Validator().CheckStruct(ctx, req); err != nil {
		fmt.Print(gstr.Join(err.Strings(), "\n"))
	}

	// Output:
	// The Date2 value `2021-11-01 23:00` is not a valid datetime
	// The Date3 value `2021/11/01 23:00:00` is not a valid datetime
	// The Date4 value `2021/Dec/01 23:00:00` is not a valid datetime }

`date-format`

格式: date-format:format
说明：判断日期是否为指定的日期格式，format参数格式为gtime日期格式(可以包含日期及时间)，格式说明参考章节：gtime模块

示例：date-format:Y-m-d H:i:s

func ExampleValidator_DateFormat() {
	type BizReq struct {
		Date1 string `v:"date-format:Y-m-d"`
		Date2 string `v:"date-format:Y-m-d"`
		Date3 string `v:"date-format:Y-m-d H:i:s"`
		Date4 string `v:"date-format:Y-m-d H:i:s"`
	}

	var (
		ctx = context.Background()
		req = BizReq{
			Date1: "2021-11-01",
			Date2: "2021-11-01 23:00",		// error
			Date3: "2021-11-01 23:00:00",
			Date4: "2021-11-01 23:00",		// error
		}
	)
	if err := g.Validator().CheckStruct(ctx, req); err != nil {   		
		fmt.Print(gstr.Join(err.Strings(), "\n"))
	}

	// Output:
	// The Date2 value `2021-11-01 23:00` does not match the format: Y-m-d
	// The Date4 value `2021-11-01 23:00` does not match the format: Y-m-d H:i:s }

`email`

格式：email

说明：EMAIL邮箱地址

func ExampleValidator_Email() {
	type BizReq struct {
		MailAddr1 string `v:"email"`
		MailAddr2 string `v:"email"`
		MailAddr3 string `v:"email"`
		MailAddr4 string `v:"email"`
	}

	var (
		ctx = context.Background()
		req = BizReq{
			MailAddr1: "gf@goframe.org",
			MailAddr2: "gf@goframe", // error
			MailAddr3: "gf@goframe.org.cn",
			MailAddr4: "gf#goframe.org", // error
		}
	)
	if err := g.Validator().CheckStruct(ctx, req); err != nil {
		fmt.Print(gstr.Join(err.Strings(), "\n"))
	}

	// Output:
	// The MailAddr2 value `gf@goframe` is not a valid email address
	// The MailAddr4 value `gf#goframe.org` is not a valid email address
}

`phone`

格式：phone

说明：手机号

func ExampleValidator_Phone() {
	type BizReq struct {
		PhoneNumber1 string `v:"phone"`
		PhoneNumber2 string `v:"phone"`
		PhoneNumber3 string `v:"phone"`
		PhoneNumber4 string `v:"phone"`
	}

	var (
		ctx = context.Background()
		req = BizReq{
			PhoneNumber1: "13578912345",
			PhoneNumber2: "11578912345", // error 11x not exist
			PhoneNumber3: "17178912345", // error 171 not exit
			PhoneNumber4: "1357891234",  // error len must be 11
		}
	)
	if err := g.Validator().CheckStruct(ctx, req); err != nil {
		fmt.Print(gstr.Join(err.Strings(), "\n"))
	}

	// Output:
	// The PhoneNumber2 value `11578912345` is not a valid phone number
	// The PhoneNumber3 value `17178912345` is not a valid phone number
	// The PhoneNumber4 value `1357891234` is not a valid phone number
}

`phone-loose`

格式: phone

说明：宽松的手机号验证，只要满足 13、14、15、16、17、18、19开头的11位数字都可以通过验证。

func ExampleValidator_PhoneLoose() {
	type BizReq struct {
		PhoneNumber1 string `v:"phone-loose"`
		PhoneNumber2 string `v:"phone-loose"`
		PhoneNumber3 string `v:"phone-loose"`
		PhoneNumber4 string `v:"phone-loose"`
	}

	var (
		ctx = context.Background()
		req = BizReq{
			PhoneNumber1: "13578912345",
			PhoneNumber2: "11578912345", // error 11x not exist
			PhoneNumber3: "17178912345",
			PhoneNumber4: "1357891234", // error len must be 11
		}
	)
	if err := g.Validator().CheckStruct(ctx, req); err != nil {
		fmt.Print(gstr.Join(err.Strings(), "\n"))
	}

	// Output:
	// The PhoneNumber2 value `11578912345` is invalid
	// The PhoneNumber4 value `1357891234` is invalid
}

`telephone`

格式: telephone

说明：国内座机电话号码，”XXXX-XXXXXXX”、”XXXX-XXXXXXXX”、”XXX-XXXXXXX”、”XXX-XXXXXXXX”、”XXXXXXX”、”XXXXXXXX”

func ExampleValidator_Telephone() {
	type BizReq struct {
		Telephone1 string `v:"telephone"`
		Telephone2 string `v:"telephone"`
		Telephone3 string `v:"telephone"`
		Telephone4 string `v:"telephone"`
	}

	var (
		ctx = context.Background()
		req = BizReq{
			Telephone1: "010-77542145",
			Telephone2: "0571-77542145",
			Telephone3: "20-77542145", // error
			Telephone4: "775421451",   // error len must be 7 or 8
		}
	)
	if err := g.Validator().CheckStruct(ctx, req); err != nil {
		fmt.Print(gstr.Join(err.Strings(), "\n"))
	}

	// Output:
	// The Telephone3 value `20-77542145` is not a valid telephone number
	// The Telephone4 value `775421451` is not a valid telephone number
}

`passport`

格式: passport

说明：通用帐号规则(字母开头，只能包含字母、数字和下划线，长度在6~18之间)。

func ExampleValidator_Passport() {
	type BizReq struct {
		Passport1 string `v:"passport"`
		Passport2 string `v:"passport"`
		Passport3 string `v:"passport"`
		Passport4 string `v:"passport"`
	}

	var (
		ctx = context.Background()
		req = BizReq{
			Passport1: "goframe",
			Passport2: "1356666",  // error starting with letter
			Passport3: "goframe#", // error containing only numbers or underscores
			Passport4: "gf",       // error length between 6 and 18
		}
	)
	if err := g.Validator().CheckStruct(ctx, req); err != nil {
		fmt.Print(gstr.Join(err.Strings(), "\n"))
	}

	// Output:
	// The Passport2 value `1356666` is not a valid passport format
	// The Passport3 value `goframe#` is not a valid passport format
	// The Passport4 value `gf` is not a valid passport format
}

`password`

格式: password

说明：通用密码规则(任意可见字符，长度在6~18之间)。

func ExampleValidator_Password() {
	type BizReq struct {
		Password1 string `v:"password"`
		Password2 string `v:"password"`
	}

	var (
		ctx = context.Background()
		req = BizReq{
			Password1: "goframe",
			Password2: "gofra", // error length between 6 and 18
		}
	)
	if err := g.Validator().CheckStruct(ctx, req); err != nil {
		fmt.Print(err)
	}

	// Output:
	// The Password2 value `gofra` is not a valid password format
}

`password2`

格式: password2

说明：中等强度密码(在弱密码的基础上，必须包含大小写字母和数字)。

func ExampleValidator_Password2() {
	type BizReq struct {
		Password1 string `v:"password2"`
		Password2 string `v:"password2"`
		Password3 string `v:"password2"`
		Password4 string `v:"password2"`
	}

	var (
		ctx = context.Background()
		req = BizReq{
			Password1: "Goframe123",
			Password2: "gofra",      // error length between 6 and 18
			Password3: "Goframe",    // error must contain lower and upper letters and numbers.
			Password4: "goframe123", // error must contain lower and upper letters and numbers.
		}
	)
	if err := g.Validator().CheckStruct(ctx, req); err != nil {
		fmt.Print(gstr.Join(err.Strings(), "\n"))
	}

	// Output:
	// The Password2 value `gofra` is not a valid password format
	// The Password3 value `Goframe` is not a valid password format
	// The Password4 value `goframe123` is not a valid password format
}

`password3`

格式: password3

说明：强等强度密码(在弱密码的基础上，必须包含大小写字母、数字和特殊字符)。

func ExampleValidator_Password3() {
	type BizReq struct {
		Password1 string `v:"password3"`
		Password2 string `v:"password3"`
		Password3 string `v:"password3"`
	}

	var (
		ctx = context.Background()
		req = BizReq{
			Password1: "Goframe123#",
			Password2: "gofra",      // error length between 6 and 18
			Password3: "Goframe123", // error must contain lower and upper letters, numbers and special chars.
		}
	)
	if err := g.Validator().CheckStruct(ctx, req); err != nil {
		fmt.Print(gstr.Join(err.Strings(), "\n"))
	}

	// Output:
	// The Password2 value `gofra` is not a valid password format
	// The Password3 value `Goframe123` is not a valid password format
}

`postcode`

格式: postcode

说明：中国邮政编码

func ExampleValidator_Postcode() {
	type BizReq struct {
		Postcode1 string `v:"postcode"`
		Postcode2 string `v:"postcode"`
		Postcode3 string `v:"postcode"`
	}

	var (
		ctx = context.Background()
		req = BizReq{
			Postcode1: "100000",
			Postcode2: "10000",   // error length must be 6
			Postcode3: "1000000", // error length must be 6
		}
	)
	if err := g.Validator().CheckStruct(ctx, req); err != nil {
		fmt.Print(gstr.Join(err.Strings(), "\n"))
	}

	// Output:
	// The Postcode2 value `10000` is not a valid postcode format
	// The Postcode3 value `1000000` is not a valid postcode format
}

`resident-id`

格式: resident-id

说明：公民身份证号码

func ExampleValidator_ResidentId() {
	type BizReq struct {
		ResidentID1 string `v:"resident-id"`
	}

	var (
		ctx = context.Background()
		req = BizReq{
			ResidentID1: "320107199506285482",
		}
	)
	if err := g.Validator().CheckStruct(ctx, req); err != nil {
		fmt.Print(err)
	}

	// Output:
	// The ResidentID1 value `320107199506285482` is not a valid resident id number
}

`bank-card`

格式: bank-card

说明：银行卡号校验

func ExampleValidator_BankCard() {
	type BizReq struct {
		BankCard1 string `v:"bank-card"`
	}

	var (
		ctx = context.Background()
		req = BizReq{
			BankCard1: "6225760079930218",
		}
	)
	if err := g.Validator().CheckStruct(ctx, req); err != nil {
		fmt.Print(err)
	}

	// Output:
	// The BankCard1 value `6225760079930218` is not a valid bank card number
}

`qq`

格式: qq

说明：腾讯QQ号码

func ExampleValidator_QQ() {
	type BizReq struct {
		QQ1 string `v:"qq"`
		QQ2 string `v:"qq"`
		QQ3 string `v:"qq"`
	}

	var (
		ctx = context.Background()
		req = BizReq{
			QQ1: "389961817",
			QQ2: "9999",       // error >= 10000
			QQ3: "514258412a", // error all number
		}
	)
	if err := g.Validator().CheckStruct(ctx, req); err != nil {
		fmt.Print(gstr.Join(err.Strings(), "\n"))
	}

	// Output:
	// The QQ2 value `9999` is not a valid QQ number
	// The QQ3 value `514258412a` is not a valid QQ number
}

`ip`

格式: ip

说明：IPv4/IPv6地址

func ExampleValidator_IP() {
	type BizReq struct {
		IP1 string `v:"ip"`
		IP2 string `v:"ip"`
		IP3 string `v:"ip"`
		IP4 string `v:"ip"`
	}

	var (
		ctx = context.Background()
		req = BizReq{
			IP1: "127.0.0.1",
			IP2: "fe80::812b:1158:1f43:f0d1",
			IP3: "520.255.255.255", // error >= 10000
			IP4: "ze80::812b:1158:1f43:f0d1",
		}
	)
	if err := g.Validator().CheckStruct(ctx, req); err != nil {
		fmt.Print(gstr.Join(err.Strings(), "\n"))
	}

	// Output:
	// The IP3 value `520.255.255.255` is not a valid IP address
	// The IP4 value `ze80::812b:1158:1f43:f0d1` is not a valid IP address
}

`ipv4`

格式: ipv4

说明：IPv4地址

func ExampleValidator_IPV4() {
	type BizReq struct {
		IP1 string `v:"ipv4"`
		IP2 string `v:"ipv4"`
	}

	var (
		ctx = context.Background()
		req = BizReq{
			IP1: "127.0.0.1",
			IP2: "520.255.255.255",
		}
	)
	if err := g.Validator().CheckStruct(ctx, req); err != nil {
		fmt.Print(err)
	}

	// Output:
	// The IP2 value `520.255.255.255` is not a valid IPv4 address
}

`ipv6`

格式: ipv6

说明：IPv6地址

func ExampleValidator_IPV6() {
	type BizReq struct {
		IP1 string `v:"ipv6"`
		IP2 string `v:"ipv6"`
	}

	var (
		ctx = context.Background()
		req = BizReq{
			IP1: "fe80::812b:1158:1f43:f0d1",
			IP2: "ze80::812b:1158:1f43:f0d1",
		}
	)
	if err := g.Validator().CheckStruct(ctx, req); err != nil {
		fmt.Print(err)
	}

	// Output:
	// The IP2 value `ze80::812b:1158:1f43:f0d1` is not a valid IPv6 address
}

`mac`

格式: mac

说明：MAC地址

func ExampleValidator_Mac() {
	type BizReq struct {
		Mac1 string `v:"mac"`
		Mac2 string `v:"mac"`
	}

	var (
		ctx = context.Background()
		req = BizReq{
			Mac1: "4C-CC-6A-D6-B1-1A",
			Mac2: "Z0-CC-6A-D6-B1-1A",
		}
	)
	if err := g.Validator().CheckStruct(ctx, req); err != nil {
		fmt.Print(err)
	}

	// Output:
	// The Mac2 value `Z0-CC-6A-D6-B1-1A` is not a valid MAC address
}

`url`

格式: url
说明：URL

示例：支持以http，https，ftp，file开头的地址。

func ExampleValidator_Url() {
	type BizReq struct {
		URL1 string `v:"url"`
		URL2 string `v:"url"`
		URL3 string `v:"url"`
	}

	var (
		ctx = context.Background()
		req = BizReq{
			URL1: "http://goframe.org",
			URL2: "ftp://goframe.org",
			URL3: "ws://goframe.org",
		}
	)
	if err := g.Validator().CheckStruct(ctx, req); err != nil {
		fmt.Print(err)
	}

	// Output:
	// The URL3 value `ws://goframe.org` is not a valid URL address
}

`domain`

格式: domain
说明：域名

示例：xxx.yyy(首位必须为字母)

func ExampleValidator_Domain() {
	type BizReq struct {
		Domain1 string `v:"domain"`
		Domain2 string `v:"domain"`
		Domain3 string `v:"domain"`
		Domain4 string `v:"domain"`
	}

	var (
		ctx = context.Background()
		req = BizReq{
			Domain1: "goframe.org",
			Domain2: "a.b",
			Domain3: "goframe#org",
			Domain4: "1a.2b",
		}
	)
	if err := g.Validator().CheckStruct(ctx, req); err != nil {
		fmt.Print(gstr.Join(err.Strings(), "\n"))
	}

	// Output:
	// The Domain3 value `goframe#org` is not a valid domain format
	// The Domain4 value `1a.2b` is not a valid domain format
}

`size`

格式: size:size

说明：参数长度为size(长度参数为整形)，注意底层使用Unicode计算长度，因此中文一个汉字占1个长度单位。

func ExampleValidator_Size() {
	type BizReq struct {
		Size1 string `v:"size:10"`
		Size2 string `v:"size:5"`
	}

	var (
		ctx = context.Background()
		req = BizReq{
			Size1: "goframe欢迎你",
			Size2: "goframe",
		}
	)
	if err := g.Validator().CheckStruct(ctx, req); err != nil {
		fmt.Print(err)
	}

	// Output:
	// The Size2 value `goframe` length must be 5
}

`length`

格式: length:min,max

说明：参数长度为min到max(长度参数为整形)，注意底层使用Unicode计算长度，因此中文一个汉字占1个长度单位。

func ExampleValidator_Length() {
	type BizReq struct {
		Length1 string `v:"length:5,10"`
		Length2 string `v:"length:10,15"`
	}

	var (
		ctx = context.Background()
		req = BizReq{
			Length1: "goframe欢迎你",
			Length2: "goframe",
		}
	)
	if err := g.Validator().CheckStruct(ctx, req); err != nil {
		fmt.Print(err)
	}

	// Output:
	// The Length2 value `goframe` length must be between 10 and 15
}

`min-length`

格式: min-length:min

说明：参数长度最小为min(长度参数为整形)，注意底层使用Unicode计算长度，因此中文一个汉字占1个长度单位。

func ExampleValidator_MinLength() {
	type BizReq struct {
		MinLength1 string `v:"min-length:10"`
		MinLength2 string `v:"min-length:8"`
	}

	var (
		ctx = context.Background()
		req = BizReq{
			MinLength1: "goframe欢迎你",
			MinLength2: "goframe",
		}
	)
	if err := g.Validator().CheckStruct(ctx, req); err != nil {
		fmt.Print(err)
	}

	// Output:
	// The MinLength2 value `goframe` length must be equal or greater than 8
}

`max-length`

格式: max-length:max

说明：参数长度最大为max(长度参数为整形)，注意底层使用Unicode计算长度，因此中文一个汉字占1个长度单位。

func ExampleValidator_MaxLength() {
	type BizReq struct {
		MaxLength1 string `v:"max-length:10"`
		MaxLength2 string `v:"max-length:5"`
	}

	var (
		ctx = context.Background()
		req = BizReq{
			MaxLength1: "goframe欢迎你",
			MaxLength2: "goframe",
		}
	)
	if err := g.Validator().CheckStruct(ctx, req); err != nil {
		fmt.Print(err)
	}

	// Output:
	// The MaxLength2 value `goframe` length must be equal or lesser than 5
}

`between`

格式: between:min,max

说明：参数大小为min到max(支持整形和浮点类型参数)。

func ExampleValidator_Between() {
	type BizReq struct {
		Age1   int     `v:"between:1,100"`
		Age2   int     `v:"between:1,100"`
		Score1 float32 `v:"between:0.0,10.0"`
		Score2 float32 `v:"between:0.0,10.0"`
	}

	var (
		ctx = context.Background()
		req = BizReq{
			Age1:   50,
			Age2:   101,
			Score1: 9.8,
			Score2: -0.5,
		}
	)
	if err := g.Validator().CheckStruct(ctx, req); err != nil {
		fmt.Print(gstr.Join(err.Strings(), "\n"))
	}

	// Output:
	// The Age2 value `101` must be between 1 and 100
	// The Score2 value `-0.5` must be between 0 and 10
}

`min`

格式: min:min

说明：参数大小最小为min(支持整形和浮点类型参数)。

func ExampleValidator_Min() {
	type BizReq struct {
		Age1   int     `v:"min:100"`
		Age2   int     `v:"min:100"`
		Score1 float32 `v:"min:10.0"`
		Score2 float32 `v:"min:10.0"`
	}

	var (
		ctx = context.Background()
		req = BizReq{
			Age1:   50,
			Age2:   101,
			Score1: 9.8,
			Score2: 10.1,
		}
	)
	if err := g.Validator().CheckStruct(ctx, req); err != nil {
		fmt.Print(gstr.Join(err.Strings(), "\n"))
	}

	// Output:
	// The Age1 value `50` must be equal or greater than 100
	// The Score1 value `9.8` must be equal or greater than 10
}

`max`

格式: max:max

说明：参数大小最大为max(支持整形和浮点类型参数)。

func ExampleValidator_Max() {
	type BizReq struct {
		Age1   int     `v:"max:100"`
		Age2   int     `v:"max:100"`
		Score1 float32 `v:"max:10.0"`
		Score2 float32 `v:"max:10.0"`
	}

	var (
		ctx = context.Background()
		req = BizReq{
			Age1:   99,
			Age2:   101,
			Score1: 9.9,
			Score2: 10.1,
		}
	)
	if err := g.Validator().CheckStruct(ctx, req); err != nil {
		fmt.Print(gstr.Join(err.Strings(), "\n"))
	}

	// Output:
	// The Age2 value `101` must be equal or lesser than 100
	// The Score2 value `10.1` must be equal or lesser than 10
}

`json`

格式: json

说明：判断数据格式为JSON

func ExampleValidator_Json() {
	type BizReq struct {
		JSON1 string `v:"json"`
		JSON2 string `v:"json"`
	}

	var (
		ctx = context.Background()
		req = BizReq{
			JSON1: "{\"name\":\"goframe\",\"author\":\"郭强\"}",
			JSON2: "{\"name\":\"goframe\",\"author\":\"郭强\",\"test\"}",
		}
	)
	if err := g.Validator().CheckStruct(ctx, req); err != nil {
		fmt.Print(err)
	}

	// Output:
	// The JSON2 value `{"name":"goframe","author":"郭强","test"}` is not a valid JSON string
}

`integer`

格式: integer

说明：整数（正整数或者负整数）。

func ExampleValidator_Integer() {
	type BizReq struct {
		Integer string `v:"integer"`
		Float   string `v:"integer"`
		Str     string `v:"integer"`
	}

	var (
		ctx = context.Background()
		req = BizReq{
			Integer: "100",
			Float:   "10.0",
			Str:     "goframe",
		}
	)
	if err := g.Validator().CheckStruct(ctx, req); err != nil {
		fmt.Print(gstr.Join(err.Strings(), "\n"))
	}

	// Output:
	// The Float value `10.0` is not an integer
	// The Str value `goframe` is not an integer
}

`float`

格式: float

说明：浮点数

func ExampleValidator_Float() {
	type BizReq struct {
		Integer string `v:"float"`
		Float   string `v:"float"`
		Str     string `v:"float"`
	}

	var (
		ctx = context.Background()
		req = BizReq{
			Integer: "100",
			Float:   "10.0",
			Str:     "goframe",
		}
	)
	if err := g.Validator().CheckStruct(ctx, req); err != nil {
		fmt.Print(err)
	}

	// Output:
	// The Str value `goframe` is invalid
}

`boolean`

格式: boolean

说明：布尔值(1,true,on,yes为true | 0,false,off,no,""为false)。

func ExampleValidator_Boolean() {
	type BizReq struct {
		Boolean bool    `v:"boolean"`
		Integer int     `v:"boolean"`
		Float   float32 `v:"boolean"`
		Str1    string  `v:"boolean"`
		Str2    string  `v:"boolean"`
		Str3    string  `v:"boolean"`
	}

	var (
		ctx = context.Background()
		req = BizReq{
			Boolean: true,
			Integer: 1,
			Float:   10.0,
			Str1:    "on",
			Str2:    "",
			Str3:    "goframe",
		}
	)
	if err := g.Validator().CheckStruct(ctx, req); err != nil {
		fmt.Print(gstr.Join(err.Strings(), "\n"))
	}

	// Output:
	// The Float value `10` field must be true or false
	// The Str3 value `goframe` field must be true or false
}

`same`

格式: same:field
说明：参数值必需与field参数的值相同

示例：在用户注册时，提交密码Password和确认密码Password2必须相等（服务端校验）。

func ExampleValidator_Same() {
	type BizReq struct {
		Name      string `v:"required"`
		Password  string `v:"required|same:Password2"`
		Password2 string `v:"required"`
	}
	var (
		ctx = context.Background()
		req = BizReq{
			Name:      "gf",
			Password:  "goframe.org",
			Password2: "goframe.net",
		}
	)
	if err := g.Validator().CheckStruct(ctx, req); err != nil {
		fmt.Println(err)
	}

	// Output:
	// The Password value `goframe.org` must be the same as field Password2
}

`different`

格式: different:field
说明：参数值不能与field参数的值相同

示例：备用邮箱OtherMailAddr和邮箱地址MailAddr必须不相同。

func ExampleValidator_Different() {
	type BizReq struct {
		Name          string `v:"required"`
		MailAddr      string `v:"required"`
		OtherMailAddr string `v:"required|different:MailAddr"`
	}
	var (
		ctx = context.Background()
		req = BizReq{
			Name:          "gf",
			MailAddr:      "gf@goframe.org",
			OtherMailAddr: "gf@goframe.org",
		}
	)
	if err := g.Validator().CheckStruct(ctx, req); err != nil {
		fmt.Println(err)
	}

	// Output:
	// The OtherMailAddr value `gf@goframe.org` must be different from field MailAddr
}

`in`

格式: in:value1,value2,...
说明：参数值应该在value1,value2,...中(字符串匹配)

示例：性别字段Gender的值必须在0/1/2中。

func ExampleValidator_In() {
	type BizReq struct {
		ID     uint   `v:"required" dc:"Your Id"`
		Name   string `v:"required" dc:"Your name"`
		Gender uint   `v:"in:0,1,2" dc:"0:Secret;1:Male;2:Female"`
	}
	var (
		ctx = context.Background()
		req = BizReq{
			ID:     1,
			Name:   "test",
			Gender: 3,
		}
	)
	if err := g.Validator().CheckStruct(ctx, req); err != nil {
		fmt.Println(err)
	}

	// Output:
	// The Gender value `3` is not in acceptable range: 0,1,2
}

`not-in`

格式: not-in:value1,value2,...
说明：参数值不应该在value1,value2,...中(字符串匹配)

示例：无效索引InvalidIndex的值必须不在-1/0/1中。

func ExampleValidator_NotIn() {
	type BizReq struct {
		ID           uint   `v:"required" dc:"Your Id"`
		Name         string `v:"required" dc:"Your name"`
		InvalidIndex uint   `v:"not-in:-1,0,1"`
	}
	var (
		ctx = context.Background()
		req = BizReq{
			ID:           1,
			Name:         "test",
			InvalidIndex: 1,
		}
	)
	if err := g.Validator().CheckStruct(ctx, req); err != nil {
		fmt.Println(err)
	}

	// Output:
	// The InvalidIndex value `1` must not be in range: -1,0,1
}

`regex`

格式: regex:pattern

说明：参数值应当满足正则匹配规则pattern

func ExampleValidator_Regex() {
	type BizReq struct {
		Regex1 string `v:"regex:[1-9][0-9]{4,14}"`
		Regex2 string `v:"regex:[1-9][0-9]{4,14}"`
		Regex3 string `v:"regex:[1-9][0-9]{4,14}"`
	}
	var (
		ctx = context.Background()
		req = BizReq{
			Regex1: "1234",
			Regex2: "01234",
			Regex3: "10000",
		}
	)
	if err := g.Validator().CheckStruct(ctx, req); err != nil {
		fmt.Print(gstr.Join(err.Strings(), "\n"))
	}

	// Output:
	// The Regex1 value `1234` must be in regex of: [1-9][0-9]{4,14}
	// The Regex2 value `01234` must be in regex of: [1-9][0-9]{4,14}
}

Content Menu

Space shortcuts

Page tree

数据校验-校验规则

required

required-if

required-unless

required-with

required-with-all

required-without

required-without-all

date

datetime

date-format

email

phone

phone-loose

telephone

passport

password

password2

password3

postcode

resident-id

bank-card

qq

ip

ipv4

ipv6

mac

url

domain

size

length

min-length

max-length

between

min

max

json

integer

float

boolean

same

different

in

not-in

regex