gRPC集成protocgenvalidate

作者：悠哉游_甘肃 | 来源：互联网 | 2023-07-24 15:41

protoc-gen-validate简介安装和配置Linux执行makebuild之前需要先切换到protoc-gen-validate路径下;因为makebuild执行的

protoc-gen-validate简介

安装和配置

Linux

执行make build之前需要先切换到protoc-gen-validate路径下;因为make build执行的就是这个路径下的Makefile;一定要确保在对应的路径下,这样make build才不会出错

# fetches this repo into $GOPATH go get -d github.com/envoyproxy/protoc-gen-validate# installs PGV into $GOPATH/bin make build

Windows

0.6.7版本exe下载地址
最新版本exe(页面查找)
下载完成后需要将exe文件拷贝到 go的根补录的bin目录下

代码

proto

hello.proto

syntax &＃61; "proto3"; option go_package &＃61; ".;proto"; import "validate.proto";service Greeter{rpc SayHello(Person) returns (Person); }message Person {uint64 id &＃61; 1 [(validate.rules).uint64.gt &＃61; 999];string email &＃61; 2 [(validate.rules).string.email &＃61; true];string name &＃61; 3 [(validate.rules).string &＃61; {pattern: "[\u4e00-\u9fa5]",max_bytes: 30,}];Location home &＃61; 4 [(validate.rules).message.required &＃61; true];message Location {double lat &＃61; 1 [(validate.rules).double &＃61; {gte: -90, lte: 90}];double lng &＃61; 2 [(validate.rules).double &＃61; {gte: -180, lte: 180}];} }

validate.proto

validate.proto再hello.proto有引用;可以直接再validate.protocopy出来一份放到与hello.proto的同级目录下,也可以直接复制下面的代码

syntax &＃61; "proto2"; package validate;option go_package &＃61; "github.com/envoyproxy/protoc-gen-validate/validate"; option java_package &＃61; "io.envoyproxy.pgv.validate";import "google/protobuf/descriptor.proto"; import "google/protobuf/duration.proto"; import "google/protobuf/timestamp.proto";// Validation rules applied at the message level extend google.protobuf.MessageOptions {// Disabled nullifies any validation rules for this message, including any// message fields associated with it that do support validation.optional bool disabled &＃61; 1071;// Ignore skips generation of validation methods for this message.optional bool ignored &＃61; 1072; }// Validation rules applied at the oneof level extend google.protobuf.OneofOptions {// Required ensures that exactly one the field options in a oneof is set;// validation fails if no fields in the oneof are set.optional bool required &＃61; 1071; }// Validation rules applied at the field level extend google.protobuf.FieldOptions {// Rules specify the validations to be performed on this field. By default,// no validation is performed against a field.optional FieldRules rules &＃61; 1071; }// FieldRules encapsulates the rules for each type of field. Depending on the // field, the correct set should be used to ensure proper validations. message FieldRules {optional MessageRules message &＃61; 17;oneof type {// Scalar Field TypesFloatRules float &＃61; 1;DoubleRules double &＃61; 2;Int32Rules int32 &＃61; 3;Int64Rules int64 &＃61; 4;UInt32Rules uint32 &＃61; 5;UInt64Rules uint64 &＃61; 6;SInt32Rules sint32 &＃61; 7;SInt64Rules sint64 &＃61; 8;Fixed32Rules fixed32 &＃61; 9;Fixed64Rules fixed64 &＃61; 10;SFixed32Rules sfixed32 &＃61; 11;SFixed64Rules sfixed64 &＃61; 12;BoolRules bool &＃61; 13;StringRules string &＃61; 14;BytesRules bytes &＃61; 15;// Complex Field TypesEnumRules enum &＃61; 16;RepeatedRules repeated &＃61; 18;MapRules map &＃61; 19;// Well-Known Field TypesAnyRules any &＃61; 20;DurationRules duration &＃61; 21;TimestampRules timestamp &＃61; 22;} }// FloatRules describes the constraints applied to &＃96;float&＃96; values message FloatRules {// Const specifies that this field must be exactly the specified valueoptional float const &＃61; 1;// Lt specifies that this field must be less than the specified value,// exclusiveoptional float lt &＃61; 2;// Lte specifies that this field must be less than or equal to the// specified value, inclusiveoptional float lte &＃61; 3;// Gt specifies that this field must be greater than the specified value,// exclusive. If the value of Gt is larger than a specified Lt or Lte, the// range is reversed.optional float gt &＃61; 4;// Gte specifies that this field must be greater than or equal to the// specified value, inclusive. If the value of Gte is larger than a// specified Lt or Lte, the range is reversed.optional float gte &＃61; 5;// In specifies that this field must be equal to one of the specified// valuesrepeated float in &＃61; 6;// NotIn specifies that this field cannot be equal to one of the specified// valuesrepeated float not_in &＃61; 7;// IgnoreEmpty specifies that the validation rules of this field should be// evaluated only if the field is not emptyoptional bool ignore_empty &＃61; 8; }// DoubleRules describes the constraints applied to &＃96;double&＃96; values message DoubleRules {// Const specifies that this field must be exactly the specified valueoptional double const &＃61; 1;// Lt specifies that this field must be less than the specified value,// exclusiveoptional double lt &＃61; 2;// Lte specifies that this field must be less than or equal to the// specified value, inclusiveoptional double lte &＃61; 3;// Gt specifies that this field must be greater than the specified value,// exclusive. If the value of Gt is larger than a specified Lt or Lte, the// range is reversed.optional double gt &＃61; 4;// Gte specifies that this field must be greater than or equal to the// specified value, inclusive. If the value of Gte is larger than a// specified Lt or Lte, the range is reversed.optional double gte &＃61; 5;// In specifies that this field must be equal to one of the specified// valuesrepeated double in &＃61; 6;// NotIn specifies that this field cannot be equal to one of the specified// valuesrepeated double not_in &＃61; 7;// IgnoreEmpty specifies that the validation rules of this field should be// evaluated only if the field is not emptyoptional bool ignore_empty &＃61; 8; }// Int32Rules describes the constraints applied to &＃96;int32&＃96; values message Int32Rules {// Const specifies that this field must be exactly the specified valueoptional int32 const &＃61; 1;// Lt specifies that this field must be less than the specified value,// exclusiveoptional int32 lt &＃61; 2;// Lte specifies that this field must be less than or equal to the// specified value, inclusiveoptional int32 lte &＃61; 3;// Gt specifies that this field must be greater than the specified value,// exclusive. If the value of Gt is larger than a specified Lt or Lte, the// range is reversed.optional int32 gt &＃61; 4;// Gte specifies that this field must be greater than or equal to the// specified value, inclusive. If the value of Gte is larger than a// specified Lt or Lte, the range is reversed.optional int32 gte &＃61; 5;// In specifies that this field must be equal to one of the specified// valuesrepeated int32 in &＃61; 6;// NotIn specifies that this field cannot be equal to one of the specified// valuesrepeated int32 not_in &＃61; 7;// IgnoreEmpty specifies that the validation rules of this field should be// evaluated only if the field is not emptyoptional bool ignore_empty &＃61; 8; }// Int64Rules describes the constraints applied to &＃96;int64&＃96; values message Int64Rules {// Const specifies that this field must be exactly the specified valueoptional int64 const &＃61; 1;// Lt specifies that this field must be less than the specified value,// exclusiveoptional int64 lt &＃61; 2;// Lte specifies that this field must be less than or equal to the// specified value, inclusiveoptional int64 lte &＃61; 3;// Gt specifies that this field must be greater than the specified value,// exclusive. If the value of Gt is larger than a specified Lt or Lte, the// range is reversed.optional int64 gt &＃61; 4;// Gte specifies that this field must be greater than or equal to the// specified value, inclusive. If the value of Gte is larger than a// specified Lt or Lte, the range is reversed.optional int64 gte &＃61; 5;// In specifies that this field must be equal to one of the specified// valuesrepeated int64 in &＃61; 6;// NotIn specifies that this field cannot be equal to one of the specified// valuesrepeated int64 not_in &＃61; 7;// IgnoreEmpty specifies that the validation rules of this field should be// evaluated only if the field is not emptyoptional bool ignore_empty &＃61; 8; }// UInt32Rules describes the constraints applied to &＃96;uint32&＃96; values message UInt32Rules {// Const specifies that this field must be exactly the specified valueoptional uint32 const &＃61; 1;// Lt specifies that this field must be less than the specified value,// exclusiveoptional uint32 lt &＃61; 2;// Lte specifies that this field must be less than or equal to the// specified value, inclusiveoptional uint32 lte &＃61; 3;// Gt specifies that this field must be greater than the specified value,// exclusive. If the value of Gt is larger than a specified Lt or Lte, the// range is reversed.optional uint32 gt &＃61; 4;// Gte specifies that this field must be greater than or equal to the// specified value, inclusive. If the value of Gte is larger than a// specified Lt or Lte, the range is reversed.optional uint32 gte &＃61; 5;// In specifies that this field must be equal to one of the specified// valuesrepeated uint32 in &＃61; 6;// NotIn specifies that this field cannot be equal to one of the specified// valuesrepeated uint32 not_in &＃61; 7;// IgnoreEmpty specifies that the validation rules of this field should be// evaluated only if the field is not emptyoptional bool ignore_empty &＃61; 8; }// UInt64Rules describes the constraints applied to &＃96;uint64&＃96; values message UInt64Rules {// Const specifies that this field must be exactly the specified valueoptional uint64 const &＃61; 1;// Lt specifies that this field must be less than the specified value,// exclusiveoptional uint64 lt &＃61; 2;// Lte specifies that this field must be less than or equal to the// specified value, inclusiveoptional uint64 lte &＃61; 3;// Gt specifies that this field must be greater than the specified value,// exclusive. If the value of Gt is larger than a specified Lt or Lte, the// range is reversed.optional uint64 gt &＃61; 4;// Gte specifies that this field must be greater than or equal to the// specified value, inclusive. If the value of Gte is larger than a// specified Lt or Lte, the range is reversed.optional uint64 gte &＃61; 5;// In specifies that this field must be equal to one of the specified// valuesrepeated uint64 in &＃61; 6;// NotIn specifies that this field cannot be equal to one of the specified// valuesrepeated uint64 not_in &＃61; 7;// IgnoreEmpty specifies that the validation rules of this field should be// evaluated only if the field is not emptyoptional bool ignore_empty &＃61; 8; }// SInt32Rules describes the constraints applied to &＃96;sint32&＃96; values message SInt32Rules {// Const specifies that this field must be exactly the specified valueoptional sint32 const &＃61; 1;// Lt specifies that this field must be less than the specified value,// exclusiveoptional sint32 lt &＃61; 2;// Lte specifies that this field must be less than or equal to the// specified value, inclusiveoptional sint32 lte &＃61; 3;// Gt specifies that this field must be greater than the specified value,// exclusive. If the value of Gt is larger than a specified Lt or Lte, the// range is reversed.optional sint32 gt &＃61; 4;// Gte specifies that this field must be greater than or equal to the// specified value, inclusive. If the value of Gte is larger than a// specified Lt or Lte, the range is reversed.optional sint32 gte &＃61; 5;// In specifies that this field must be equal to one of the specified// valuesrepeated sint32 in &＃61; 6;// NotIn specifies that this field cannot be equal to one of the specified// valuesrepeated sint32 not_in &＃61; 7;// IgnoreEmpty specifies that the validation rules of this field should be// evaluated only if the field is not emptyoptional bool ignore_empty &＃61; 8; }// SInt64Rules describes the constraints applied to &＃96;sint64&＃96; values message SInt64Rules {// Const specifies that this field must be exactly the specified valueoptional sint64 const &＃61; 1;// Lt specifies that this field must be less than the specified value,// exclusiveoptional sint64 lt &＃61; 2;// Lte specifies that this field must be less than or equal to the// specified value, inclusiveoptional sint64 lte &＃61; 3;// Gt specifies that this field must be greater than the specified value,// exclusive. If the value of Gt is larger than a specified Lt or Lte, the// range is reversed.optional sint64 gt &＃61; 4;// Gte specifies that this field must be greater than or equal to the// specified value, inclusive. If the value of Gte is larger than a// specified Lt or Lte, the range is reversed.optional sint64 gte &＃61; 5;// In specifies that this field must be equal to one of the specified// valuesrepeated sint64 in &＃61; 6;// NotIn specifies that this field cannot be equal to one of the specified// valuesrepeated sint64 not_in &＃61; 7;// IgnoreEmpty specifies that the validation rules of this field should be// evaluated only if the field is not emptyoptional bool ignore_empty &＃61; 8; }// Fixed32Rules describes the constraints applied to &＃96;fixed32&＃96; values message Fixed32Rules {// Const specifies that this field must be exactly the specified valueoptional fixed32 const &＃61; 1;// Lt specifies that this field must be less than the specified value,// exclusiveoptional fixed32 lt &＃61; 2;// Lte specifies that this field must be less than or equal to the// specified value, inclusiveoptional fixed32 lte &＃61; 3;// Gt specifies that this field must be greater than the specified value,// exclusive. If the value of Gt is larger than a specified Lt or Lte, the// range is reversed.optional fixed32 gt &＃61; 4;// Gte specifies that this field must be greater than or equal to the// specified value, inclusive. If the value of Gte is larger than a// specified Lt or Lte, the range is reversed.optional fixed32 gte &＃61; 5;// In specifies that this field must be equal to one of the specified// valuesrepeated fixed32 in &＃61; 6;// NotIn specifies that this field cannot be equal to one of the specified// valuesrepeated fixed32 not_in &＃61; 7;// IgnoreEmpty specifies that the validation rules of this field should be// evaluated only if the field is not emptyoptional bool ignore_empty &＃61; 8; }// Fixed64Rules describes the constraints applied to &＃96;fixed64&＃96; values message Fixed64Rules {// Const specifies that this field must be exactly the specified valueoptional fixed64 const &＃61; 1;// Lt specifies that this field must be less than the specified value,// exclusiveoptional fixed64 lt &＃61; 2;// Lte specifies that this field must be less than or equal to the// specified value, inclusiveoptional fixed64 lte &＃61; 3;// Gt specifies that this field must be greater than the specified value,// exclusive. If the value of Gt is larger than a specified Lt or Lte, the// range is reversed.optional fixed64 gt &＃61; 4;// Gte specifies that this field must be greater than or equal to the// specified value, inclusive. If the value of Gte is larger than a// specified Lt or Lte, the range is reversed.optional fixed64 gte &＃61; 5;// In specifies that this field must be equal to one of the specified// valuesrepeated fixed64 in &＃61; 6;// NotIn specifies that this field cannot be equal to one of the specified// valuesrepeated fixed64 not_in &＃61; 7;// IgnoreEmpty specifies that the validation rules of this field should be// evaluated only if the field is not emptyoptional bool ignore_empty &＃61; 8; }// SFixed32Rules describes the constraints applied to &＃96;sfixed32&＃96; values message SFixed32Rules {// Const specifies that this field must be exactly the specified valueoptional sfixed32 const &＃61; 1;// Lt specifies that this field must be less than the specified value,// exclusiveoptional sfixed32 lt &＃61; 2;// Lte specifies that this field must be less than or equal to the// specified value, inclusiveoptional sfixed32 lte &＃61; 3;// Gt specifies that this field must be greater than the specified value,// exclusive. If the value of Gt is larger than a specified Lt or Lte, the// range is reversed.optional sfixed32 gt &＃61; 4;// Gte specifies that this field must be greater than or equal to the// specified value, inclusive. If the value of Gte is larger than a// specified Lt or Lte, the range is reversed.optional sfixed32 gte &＃61; 5;// In specifies that this field must be equal to one of the specified// valuesrepeated sfixed32 in &＃61; 6;// NotIn specifies that this field cannot be equal to one of the specified// valuesrepeated sfixed32 not_in &＃61; 7;// IgnoreEmpty specifies that the validation rules of this field should be// evaluated only if the field is not emptyoptional bool ignore_empty &＃61; 8; }// SFixed64Rules describes the constraints applied to &＃96;sfixed64&＃96; values message SFixed64Rules {// Const specifies that this field must be exactly the specified valueoptional sfixed64 const &＃61; 1;// Lt specifies that this field must be less than the specified value,// exclusiveoptional sfixed64 lt &＃61; 2;// Lte specifies that this field must be less than or equal to the// specified value, inclusiveoptional sfixed64 lte &＃61; 3;// Gt specifies that this field must be greater than the specified value,// exclusive. If the value of Gt is larger than a specified Lt or Lte, the// range is reversed.optional sfixed64 gt &＃61; 4;// Gte specifies that this field must be greater than or equal to the// specified value, inclusive. If the value of Gte is larger than a// specified Lt or Lte, the range is reversed.optional sfixed64 gte &＃61; 5;// In specifies that this field must be equal to one of the specified// valuesrepeated sfixed64 in &＃61; 6;// NotIn specifies that this field cannot be equal to one of the specified// valuesrepeated sfixed64 not_in &＃61; 7;// IgnoreEmpty specifies that the validation rules of this field should be// evaluated only if the field is not emptyoptional bool ignore_empty &＃61; 8; }// BoolRules describes the constraints applied to &＃96;bool&＃96; values message BoolRules {// Const specifies that this field must be exactly the specified valueoptional bool const &＃61; 1; }// StringRules describe the constraints applied to &＃96;string&＃96; values message StringRules {// Const specifies that this field must be exactly the specified valueoptional string const &＃61; 1;// Len specifies that this field must be the specified number of// characters (Unicode code points). Note that the number of// characters may differ from the number of bytes in the string.optional uint64 len &＃61; 19;// MinLen specifies that this field must be the specified number of// characters (Unicode code points) at a minimum. Note that the number of// characters may differ from the number of bytes in the string.optional uint64 min_len &＃61; 2;// MaxLen specifies that this field must be the specified number of// characters (Unicode code points) at a maximum. Note that the number of// characters may differ from the number of bytes in the string.optional uint64 max_len &＃61; 3;// LenBytes specifies that this field must be the specified number of bytesoptional uint64 len_bytes &＃61; 20;// MinBytes specifies that this field must be the specified number of bytes// at a minimumoptional uint64 min_bytes &＃61; 4;// MaxBytes specifies that this field must be the specified number of bytes// at a maximumoptional uint64 max_bytes &＃61; 5;// Pattern specifes that this field must match against the specified// regular expression (RE2 syntax). The included expression should elide// any delimiters.optional string pattern &＃61; 6;// Prefix specifies that this field must have the specified substring at// the beginning of the string.optional string prefix &＃61; 7;// Suffix specifies that this field must have the specified substring at// the end of the string.optional string suffix &＃61; 8;// Contains specifies that this field must have the specified substring// anywhere in the string.optional string contains &＃61; 9;// NotContains specifies that this field cannot have the specified substring// anywhere in the string.optional string not_contains &＃61; 23;// In specifies that this field must be equal to one of the specified// valuesrepeated string in &＃61; 10;// NotIn specifies that this field cannot be equal to one of the specified// valuesrepeated string not_in &＃61; 11;// WellKnown rules provide advanced constraints against common string// patternsoneof well_known {// Email specifies that the field must be a valid email address as// defined by RFC 5322bool email &＃61; 12;// Hostname specifies that the field must be a valid hostname as// defined by RFC 1034. This constraint does not support// internationalized domain names (IDNs).bool hostname &＃61; 13;// Ip specifies that the field must be a valid IP (v4 or v6) address.// Valid IPv6 addresses should not include surrounding square brackets.bool ip &＃61; 14;// Ipv4 specifies that the field must be a valid IPv4 address.bool ipv4 &＃61; 15;// Ipv6 specifies that the field must be a valid IPv6 address. Valid// IPv6 addresses should not include surrounding square brackets.bool ipv6 &＃61; 16;// Uri specifies that the field must be a valid, absolute URI as defined// by RFC 3986bool uri &＃61; 17;// UriRef specifies that the field must be a valid URI as defined by RFC// 3986 and may be relative or absolute.bool uri_ref &＃61; 18;// Address specifies that the field must be either a valid hostname as// defined by RFC 1034 (which does not support internationalized domain// names or IDNs), or it can be a valid IP (v4 or v6).bool address &＃61; 21;// Uuid specifies that the field must be a valid UUID as defined by// RFC 4122bool uuid &＃61; 22;// WellKnownRegex specifies a common well known pattern defined as a regex.KnownRegex well_known_regex &＃61; 24;}// This applies to regexes HTTP_HEADER_NAME and HTTP_HEADER_VALUE to enable// strict header validation.// By default, this is true, and HTTP header validations are RFC-compliant.// Setting to false will enable a looser validations that only disallows// \r\n\0 characters, which can be used to bypass header matching rules.optional bool strict &＃61; 25 [default &＃61; true];// IgnoreEmpty specifies that the validation rules of this field should be// evaluated only if the field is not emptyoptional bool ignore_empty &＃61; 26; }// WellKnownRegex contain some well-known patterns. enum KnownRegex {UNKNOWN &＃61; 0;// HTTP header name as defined by RFC 7230.HTTP_HEADER_NAME &＃61; 1;// HTTP header value as defined by RFC 7230.HTTP_HEADER_VALUE &＃61; 2; }// BytesRules describe the constraints applied to &＃96;bytes&＃96; values message BytesRules {// Const specifies that this field must be exactly the specified valueoptional bytes const &＃61; 1;// Len specifies that this field must be the specified number of bytesoptional uint64 len &＃61; 13;// MinLen specifies that this field must be the specified number of bytes// at a minimumoptional uint64 min_len &＃61; 2;// MaxLen specifies that this field must be the specified number of bytes// at a maximumoptional uint64 max_len &＃61; 3;// Pattern specifes that this field must match against the specified// regular expression (RE2 syntax). The included expression should elide// any delimiters.optional string pattern &＃61; 4;// Prefix specifies that this field must have the specified bytes at the// beginning of the string.optional bytes prefix &＃61; 5;// Suffix specifies that this field must have the specified bytes at the// end of the string.optional bytes suffix &＃61; 6;// Contains specifies that this field must have the specified bytes// anywhere in the string.optional bytes contains &＃61; 7;// In specifies that this field must be equal to one of the specified// valuesrepeated bytes in &＃61; 8;// NotIn specifies that this field cannot be equal to one of the specified// valuesrepeated bytes not_in &＃61; 9;// WellKnown rules provide advanced constraints against common byte// patternsoneof well_known {// Ip specifies that the field must be a valid IP (v4 or v6) address in// byte formatbool ip &＃61; 10;// Ipv4 specifies that the field must be a valid IPv4 address in byte// formatbool ipv4 &＃61; 11;// Ipv6 specifies that the field must be a valid IPv6 address in byte// formatbool ipv6 &＃61; 12;}// IgnoreEmpty specifies that the validation rules of this field should be// evaluated only if the field is not emptyoptional bool ignore_empty &＃61; 14; }// EnumRules describe the constraints applied to enum values message EnumRules {// Const specifies that this field must be exactly the specified valueoptional int32 const &＃61; 1;// DefinedOnly specifies that this field must be only one of the defined// values for this enum, failing on any undefined value.optional bool defined_only &＃61; 2;// In specifies that this field must be equal to one of the specified// valuesrepeated int32 in &＃61; 3;// NotIn specifies that this field cannot be equal to one of the specified// valuesrepeated int32 not_in &＃61; 4; }// MessageRules describe the constraints applied to embedded message values. // For message-type fields, validation is performed recursively. message MessageRules {// Skip specifies that the validation rules of this field should not be// evaluatedoptional bool skip &＃61; 1;// Required specifies that this field must be setoptional bool required &＃61; 2; }// RepeatedRules describe the constraints applied to &＃96;repeated&＃96; values message RepeatedRules {// MinItems specifies that this field must have the specified number of// items at a minimumoptional uint64 min_items &＃61; 1;// MaxItems specifies that this field must have the specified number of// items at a maximumoptional uint64 max_items &＃61; 2;// Unique specifies that all elements in this field must be unique. This// contraint is only applicable to scalar and enum types (messages are not// supported).optional bool unique &＃61; 3;// Items specifies the contraints to be applied to each item in the field.// Repeated message fields will still execute validation against each item// unless skip is specified here.optional FieldRules items &＃61; 4;// IgnoreEmpty specifies that the validation rules of this field should be// evaluated only if the field is not emptyoptional bool ignore_empty &＃61; 5; }// MapRules describe the constraints applied to &＃96;map&＃96; values message MapRules {// MinPairs specifies that this field must have the specified number of// KVs at a minimumoptional uint64 min_pairs &＃61; 1;// MaxPairs specifies that this field must have the specified number of// KVs at a maximumoptional uint64 max_pairs &＃61; 2;// NoSparse specifies values in this field cannot be unset. This only// applies to map&＃39;s with message value types.optional bool no_sparse &＃61; 3;// Keys specifies the constraints to be applied to each key in the field.optional FieldRules keys &＃61; 4;// Values specifies the constraints to be applied to the value of each key// in the field. Message values will still have their validations evaluated// unless skip is specified here.optional FieldRules values &＃61; 5;// IgnoreEmpty specifies that the validation rules of this field should be// evaluated only if the field is not emptyoptional bool ignore_empty &＃61; 6; }// AnyRules describe constraints applied exclusively to the // &＃96;google.protobuf.Any&＃96; well-known type message AnyRules {// Required specifies that this field must be setoptional bool required &＃61; 1;// In specifies that this field&＃39;s &＃96;type_url&＃96; must be equal to one of the// specified values.repeated string in &＃61; 2;// NotIn specifies that this field&＃39;s &＃96;type_url&＃96; must not be equal to any of// the specified values.repeated string not_in &＃61; 3; }// DurationRules describe the constraints applied exclusively to the // &＃96;google.protobuf.Duration&＃96; well-known type message DurationRules {// Required specifies that this field must be setoptional bool required &＃61; 1;// Const specifies that this field must be exactly the specified valueoptional google.protobuf.Duration const &＃61; 2;// Lt specifies that this field must be less than the specified value,// exclusiveoptional google.protobuf.Duration lt &＃61; 3;// Lt specifies that this field must be less than the specified value,// inclusiveoptional google.protobuf.Duration lte &＃61; 4;// Gt specifies that this field must be greater than the specified value,// exclusiveoptional google.protobuf.Duration gt &＃61; 5;// Gte specifies that this field must be greater than the specified value,// inclusiveoptional google.protobuf.Duration gte &＃61; 6;// In specifies that this field must be equal to one of the specified// valuesrepeated google.protobuf.Duration in &＃61; 7;// NotIn specifies that this field cannot be equal to one of the specified// valuesrepeated google.protobuf.Duration not_in &＃61; 8; }// TimestampRules describe the constraints applied exclusively to the // &＃96;google.protobuf.Timestamp&＃96; well-known type message TimestampRules {// Required specifies that this field must be setoptional bool required &＃61; 1;// Const specifies that this field must be exactly the specified valueoptional google.protobuf.Timestamp const &＃61; 2;// Lt specifies that this field must be less than the specified value,// exclusiveoptional google.protobuf.Timestamp lt &＃61; 3;// Lte specifies that this field must be less than the specified value,// inclusiveoptional google.protobuf.Timestamp lte &＃61; 4;// Gt specifies that this field must be greater than the specified value,// exclusiveoptional google.protobuf.Timestamp gt &＃61; 5;// Gte specifies that this field must be greater than the specified value,// inclusiveoptional google.protobuf.Timestamp gte &＃61; 6;// LtNow specifies that this must be less than the current time. LtNow// can only be used with the Within rule.optional bool lt_now &＃61; 7;// GtNow specifies that this must be greater than the current time. GtNow// can only be used with the Within rule.optional bool gt_now &＃61; 8;// Within specifies that this field must be within this duration of the// current time. This constraint can be used alone or with the LtNow and// GtNow rules.optional google.protobuf.Duration within &＃61; 9; }

使用命令生成对应的go代码

protoc -I . --go_out&＃61;plugins&＃61;grpc:. --validate_out&＃61;"lang&＃61;go:." hello.proto

生成代码的时候如果遇到 ‘protoc-gen-validate’ 不是内部或外部命令,也不是可运行的程序这种错,就需要检查一下下载的exe是否放置到了go的根补录的bin目录下或者看一下下载的exe文件名是否带有版本号;例如:
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如果有带有类似的版本号就将exe名称后面的版本号删除掉就可以了

在这里插入图片描述

.pb.go

对应的代码篇幅过长,这里进行省略,只要正常输入命令生成就好.

Server

package mainimport ("ShopBefore/rpc/grpc_validate/proto""context""google.golang.org/grpc""google.golang.org/grpc/codes""google.golang.org/grpc/status""net" )type Server struct{}func (s Server) SayHello(ctx context.Context, person *proto.Person) (*proto.Person, error) {return &proto.Person{Id: 999}, nil }type Validator interface {Validate() error }func main() {interceptor :&＃61; func(ctx context.Context, req interface{}, info *grpc.UnaryServerInfo, handler grpc.UnaryHandler) (resp interface{}, err error) {// 使用Validator不使用Person;是为了避免硬编码// 这样拦截器每个需要验证的req都可以使用if p, ok :&＃61; req.(Validator); ok {if err :&＃61; p.Validate(); err !&＃61; nil {// 参数没有通过验证时;返回一个错误不继续向下执行return nil, status.Error(codes.InvalidArgument, err.Error())}}// 通过验证后继续向下执行return handler(ctx, req)}server :&＃61; grpc.NewServer(grpc.UnaryInterceptor(interceptor))proto.RegisterGreeterServer(server,&Server{})listen, _ :&＃61; net.Listen("tcp", ":8081")_ &＃61; server.Serve(listen) }

Client

package mainimport ("ShopBefore/rpc/grpc_validate/proto""context""fmt""google.golang.org/grpc""google.golang.org/grpc/credentials/insecure""log" )func main() {conn, _ :&＃61; grpc.Dial("localhost:8081", grpc.WithTransportCredentials(insecure.NewCredentials()))defer conn.Close()client :&＃61; proto.NewGreeterClient(conn)res, err :&＃61; client.SayHello(context.Background(), &proto.Person{Id: 1000,Email: "fanqiechaodan&＃64;fanqiechaodan.com",Name: "番茄炒蛋",Home: &proto.Person_Location{Lat: 23,Lng: 45,},})if err !&＃61; nil {log.Println(err.Error())}fmt.Println(res.Id) }