{"id":103946,"date":"2026-09-11T15:33:08","date_gmt":"2026-09-11T07:33:08","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/103946.html"},"modified":"2026-09-11T15:33:08","modified_gmt":"2026-09-11T07:33:08","slug":"go-%e8%af%ad%e8%a8%80%e5%85%a5%e9%97%a8%e7%ac%94%e8%ae%b0%ef%bc%88%e5%8d%81%e4%b8%83%ef%bc%89%ef%bc%9a%e5%be%ae%e6%9c%8d%e5%8a%a1%e5%b8%b8%e8%a7%81%e5%ae%9e%e8%b7%b5-%e4%bb%8e","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/103946.html","title":{"rendered":"Go \u8bed\u8a00\u5165\u95e8\u7b14\u8bb0\uff08\u5341\u4e03\uff09\uff1a\u5fae\u670d\u52a1\u5e38\u89c1\u5b9e\u8df5\u2014\u2014\u4ece\u5355\u4f53\u5230\u5206\u5e03\u5f0f"},"content":{"rendered":"<p>\u524d\u9762\u628a Go \u7684\u8bed\u8a00\u7279\u6027\u548c\u5de5\u7a0b\u5b9e\u8df5\u90fd\u8fc7\u4e86\u4e00\u904d&#xff0c;\u57fa\u7840\u7b97\u662f\u624e\u5b9e\u4e86\u3002\u4f46\u771f\u5b9e\u7684\u5de5\u4f5c\u573a\u666f\u91cc&#xff0c;\u5f88\u591a\u9879\u76ee\u90fd\u662f\u5fae\u670d\u52a1\u67b6\u6784&#xff0c;\u5c24\u5176\u662f\u540e\u7aef\u5c97\u4f4d&#xff0c;\u9762\u8bd5\u65f6\u51e0\u4e4e\u8eb2\u4e0d\u5f00\u201c\u4f60\u4eec\u9879\u76ee\u600e\u4e48\u62c6\u670d\u52a1\u7684\u201d\u201c\u670d\u52a1\u4e4b\u95f4\u600e\u4e48\u8c03\u7528\u201d\u201c\u600e\u4e48\u4fdd\u8bc1\u7a33\u5b9a\u6027\u201d\u8fd9\u7c7b\u95ee\u9898\u3002\u8fd9\u7bc7\u5c31\u7ed3\u5408\u6211\u81ea\u5df1\u7684\u7406\u89e3&#xff0c;\u628a Go \u5728\u5fae\u670d\u52a1\u4e2d\u7684\u5e38\u89c1\u5b9e\u8df5\u68b3\u7406\u4e00\u4e0b&#xff0c;\u5305\u62ec RPC\u3001\u670d\u52a1\u6ce8\u518c\u53d1\u73b0\u3001\u94fe\u8def\u8ffd\u8e2a\u3001\u9650\u6d41\u7194\u65ad\u7b49\u3002<\/p>\n<h3>\u4e3a\u4ec0\u4e48 Go \u9002\u5408\u5199\u5fae\u670d\u52a1<\/h3>\n<p>Go \u5728\u5fae\u670d\u52a1\u9886\u57df\u7279\u522b\u53d7\u6b22\u8fce&#xff0c;\u4e3b\u8981\u6709\u51e0\u4e2a\u539f\u56e0&#xff1a;<\/p>\n<ul>\n<li>\u90e8\u7f72\u7b80\u5355&#xff1a;\u7f16\u8bd1\u51fa\u6765\u5c31\u662f\u4e00\u4e2a\u9759\u6001\u4e8c\u8fdb\u5236&#xff0c;\u4e0d\u9700\u8981\u88c5\u8fd0\u884c\u65f6&#xff0c;\u6254\u5230\u5bb9\u5668\u91cc\u5c31\u80fd\u8dd1\u3002<\/li>\n<li>\u542f\u52a8\u5feb&#xff1a;\u51b7\u542f\u52a8\u6beb\u79d2\u7ea7&#xff0c;\u9002\u5408\u5bb9\u5668\u5316\u548c\u5f39\u6027\u4f38\u7f29\u3002<\/li>\n<li>\u5e76\u53d1\u6a21\u578b\u597d&#xff1a;goroutine \u5199\u9ad8\u5e76\u53d1\u670d\u52a1\u5f88\u81ea\u7136&#xff0c;\u8d44\u6e90\u5360\u7528\u4e5f\u4f4e\u3002<\/li>\n<li>\u6807\u51c6\u5e93\u5f3a&#xff1a;net\/http\u3001encoding\/json \u8fd9\u4e9b\u5f00\u7bb1\u5373\u7528&#xff0c;\u4e0d\u4f9d\u8d56\u5927\u91cf\u7b2c\u4e09\u65b9\u5e93\u3002<\/li>\n<\/ul>\n<p>\u6211\u6700\u65e9\u5199 Java \u7684\u65f6\u5019&#xff0c;\u4e00\u4e2a Spring Boot \u670d\u52a1\u542f\u52a8\u8981\u597d\u51e0\u79d2&#xff0c;\u5185\u5b58\u5360\u7528\u4e5f\u5927\u3002\u6362\u6210 Go \u4e4b\u540e&#xff0c;\u4e00\u4e2a\u670d\u52a1\u4e8c\u8fdb\u5236\u51e0 MB&#xff0c;\u542f\u52a8\u51e0\u767e\u6beb\u79d2&#xff0c;\u8d44\u6e90\u5360\u7528\u5c11\u5f88\u591a&#xff0c;\u90e8\u7f72\u4f53\u9a8c\u5b8c\u5168\u4e0d\u4e00\u6837\u3002<\/p>\n<h3>RPC&#xff1a;\u670d\u52a1\u4e4b\u95f4\u600e\u4e48\u8c03\u7528<\/h3>\n<p>\u5fae\u670d\u52a1\u4e4b\u95f4\u901a\u4fe1\u4e3b\u8981\u6709\u4e24\u79cd\u65b9\u5f0f&#xff1a;HTTP REST \u548c RPC\u3002REST \u7b80\u5355\u901a\u7528&#xff0c;\u4f46\u6027\u80fd\u548c\u7c7b\u578b\u5b89\u5168\u5dee\u4e00\u4e9b&#xff1b;RPC \u6548\u7387\u9ad8&#xff0c;\u63a5\u53e3\u5b9a\u4e49\u6e05\u6670&#xff0c;\u9002\u5408\u5185\u90e8\u670d\u52a1\u8c03\u7528\u3002<\/p>\n<h4>gRPC \u662f\u4e3b\u6d41\u9009\u62e9<\/h4>\n<p>Go \u751f\u6001\u91cc\u6700\u5e38\u7528\u7684 RPC \u6846\u67b6\u662f gRPC&#xff0c;\u5b83\u57fa\u4e8e HTTP\/2 \u548c Protobuf&#xff0c;\u652f\u6301\u53cc\u5411\u6d41\u3001\u8d85\u65f6\u63a7\u5236\u3001\u62e6\u622a\u5668\u7b49\u3002<\/p>\n<p>\u5148\u5b9a\u4e49\u4e00\u4e2a .proto \u6587\u4ef6&#xff1a;<\/p>\n<p>syntax &#061; &#034;proto3&#034;;<\/p>\n<p>package user;<\/p>\n<p>option go_package &#061; &#034;github.com\/example\/user\/pb&#034;;<\/p>\n<p>service UserService {<br \/>\n    rpc GetUser (GetUserRequest) returns (GetUserResponse);<br \/>\n}<\/p>\n<p>message GetUserRequest {<br \/>\n    int64 id &#061; 1;<br \/>\n}<\/p>\n<p>message GetUserResponse {<br \/>\n    int64 id &#061; 1;<br \/>\n    string name &#061; 2;<br \/>\n    int32 age &#061; 3;<br \/>\n}<\/p>\n<p>\u7136\u540e\u7528 protoc \u751f\u6210 Go \u4ee3\u7801&#xff1a;<\/p>\n<p>protoc <span class=\"token parameter variable\">&#8211;go_out<\/span><span class=\"token operator\">&#061;<\/span>. &#8211;go-grpc_out<span class=\"token operator\">&#061;<\/span>. user.proto<\/p>\n<p>\u751f\u6210\u7684\u4ee3\u7801\u5305\u542b\u5ba2\u6237\u7aef\u548c\u670d\u52a1\u7aef\u63a5\u53e3&#xff0c;\u5b9e\u73b0\u670d\u52a1\u7aef&#xff1a;<\/p>\n<p><span class=\"token keyword\">type<\/span> UserServer <span class=\"token keyword\">struct<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    pb<span class=\"token punctuation\">.<\/span>UnimplementedUserServiceServer<br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token keyword\">func<\/span> <span class=\"token punctuation\">(<\/span>s <span class=\"token operator\">*<\/span>UserServer<span class=\"token punctuation\">)<\/span> <span class=\"token function\">GetUser<\/span><span class=\"token punctuation\">(<\/span>ctx context<span class=\"token punctuation\">.<\/span>Context<span class=\"token punctuation\">,<\/span> req <span class=\"token operator\">*<\/span>pb<span class=\"token punctuation\">.<\/span>GetUserRequest<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token operator\">*<\/span>pb<span class=\"token punctuation\">.<\/span>GetUserResponse<span class=\"token punctuation\">,<\/span> <span class=\"token builtin\">error<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token comment\">\/\/ \u67e5\u8be2\u903b\u8f91<\/span><br \/>\n    <span class=\"token keyword\">return<\/span> <span class=\"token operator\">&amp;<\/span>pb<span class=\"token punctuation\">.<\/span>GetUserResponse<span class=\"token punctuation\">{<\/span><br \/>\n        Id<span class=\"token punctuation\">:<\/span>   req<span class=\"token punctuation\">.<\/span>Id<span class=\"token punctuation\">,<\/span><br \/>\n        Name<span class=\"token punctuation\">:<\/span> <span class=\"token string\">&#034;\u5c0f\u660e&#034;<\/span><span class=\"token punctuation\">,<\/span><br \/>\n        Age<span class=\"token punctuation\">:<\/span>  <span class=\"token number\">25<\/span><span class=\"token punctuation\">,<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token boolean\">nil<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p>\u5ba2\u6237\u7aef\u8c03\u7528&#xff1a;<\/p>\n<p>conn<span class=\"token punctuation\">,<\/span> err <span class=\"token operator\">:&#061;<\/span> grpc<span class=\"token punctuation\">.<\/span><span class=\"token function\">Dial<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;localhost:50051&#034;<\/span><span class=\"token punctuation\">,<\/span> grpc<span class=\"token punctuation\">.<\/span><span class=\"token function\">WithInsecure<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token keyword\">if<\/span> err <span class=\"token operator\">!&#061;<\/span> <span class=\"token boolean\">nil<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    log<span class=\"token punctuation\">.<\/span><span class=\"token function\">Fatal<\/span><span class=\"token punctuation\">(<\/span>err<span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token keyword\">defer<\/span> conn<span class=\"token punctuation\">.<\/span><span class=\"token function\">Close<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><\/p>\n<p>client <span class=\"token operator\">:&#061;<\/span> pb<span class=\"token punctuation\">.<\/span><span class=\"token function\">NewUserServiceClient<\/span><span class=\"token punctuation\">(<\/span>conn<span class=\"token punctuation\">)<\/span><br \/>\nresp<span class=\"token punctuation\">,<\/span> err <span class=\"token operator\">:&#061;<\/span> client<span class=\"token punctuation\">.<\/span><span class=\"token function\">GetUser<\/span><span class=\"token punctuation\">(<\/span>context<span class=\"token punctuation\">.<\/span><span class=\"token function\">Background<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token operator\">&amp;<\/span>pb<span class=\"token punctuation\">.<\/span>GetUserRequest<span class=\"token punctuation\">{<\/span>Id<span class=\"token punctuation\">:<\/span> <span class=\"token number\">1<\/span><span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token keyword\">if<\/span> err <span class=\"token operator\">!&#061;<\/span> <span class=\"token boolean\">nil<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    log<span class=\"token punctuation\">.<\/span><span class=\"token function\">Fatal<\/span><span class=\"token punctuation\">(<\/span>err<span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><br \/>\nfmt<span class=\"token punctuation\">.<\/span><span class=\"token function\">Println<\/span><span class=\"token punctuation\">(<\/span>resp<span class=\"token punctuation\">.<\/span>Name<span class=\"token punctuation\">)<\/span><\/p>\n<p>gRPC \u7684\u597d\u5904\u662f\u63a5\u53e3\u5b9a\u4e49\u5f3a\u7c7b\u578b&#xff0c;\u6539\u52a8 proto \u540e\u91cd\u65b0\u751f\u6210\u4ee3\u7801&#xff0c;\u7f16\u8bd1\u671f\u5c31\u80fd\u53d1\u73b0\u4e0d\u517c\u5bb9\u7684\u95ee\u9898\u3002\u800c\u4e14 Protobuf \u5e8f\u5217\u5316\u6548\u7387\u6bd4 JSON \u9ad8\u4e0d\u5c11&#xff0c;\u7f51\u7edc\u4f20\u8f93\u5f00\u9500\u5c0f\u3002<\/p>\n<h4>gRPC \u62e6\u622a\u5668<\/h4>\n<p>\u5b9e\u9645\u9879\u76ee\u91cc&#xff0c;\u6bcf\u4e2a RPC \u8c03\u7528\u53ef\u80fd\u90fd\u9700\u8981\u6253\u65e5\u5fd7\u3001\u4f20 trace id\u3001\u505a\u9274\u6743\u3001\u9650\u6d41\u7b49\u3002gRPC \u63d0\u4f9b\u4e86\u62e6\u622a\u5668&#xff08;Interceptor&#xff09;&#xff0c;\u53ef\u4ee5\u7edf\u4e00\u5904\u7406\u8fd9\u4e9b\u6a2a\u5207\u903b\u8f91&#xff1a;<\/p>\n<p><span class=\"token keyword\">func<\/span> <span class=\"token function\">loggingInterceptor<\/span><span class=\"token punctuation\">(<\/span>ctx context<span class=\"token punctuation\">.<\/span>Context<span class=\"token punctuation\">,<\/span> req <span class=\"token keyword\">interface<\/span><span class=\"token punctuation\">{<\/span><span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">,<\/span> info <span class=\"token operator\">*<\/span>grpc<span class=\"token punctuation\">.<\/span>UnaryServerInfo<span class=\"token punctuation\">,<\/span> handler grpc<span class=\"token punctuation\">.<\/span>UnaryHandler<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token keyword\">interface<\/span><span class=\"token punctuation\">{<\/span><span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token builtin\">error<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    start <span class=\"token operator\">:&#061;<\/span> time<span class=\"token punctuation\">.<\/span><span class=\"token function\">Now<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    resp<span class=\"token punctuation\">,<\/span> err <span class=\"token operator\">:&#061;<\/span> <span class=\"token function\">handler<\/span><span class=\"token punctuation\">(<\/span>ctx<span class=\"token punctuation\">,<\/span> req<span class=\"token punctuation\">)<\/span><br \/>\n    log<span class=\"token punctuation\">.<\/span><span class=\"token function\">Printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;method&#061;%s duration&#061;%v err&#061;%v&#034;<\/span><span class=\"token punctuation\">,<\/span> info<span class=\"token punctuation\">.<\/span>FullMethod<span class=\"token punctuation\">,<\/span> time<span class=\"token punctuation\">.<\/span><span class=\"token function\">Since<\/span><span class=\"token punctuation\">(<\/span>start<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> err<span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token keyword\">return<\/span> resp<span class=\"token punctuation\">,<\/span> err<br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p>server <span class=\"token operator\">:&#061;<\/span> grpc<span class=\"token punctuation\">.<\/span><span class=\"token function\">NewServer<\/span><span class=\"token punctuation\">(<\/span>grpc<span class=\"token punctuation\">.<\/span><span class=\"token function\">UnaryInterceptor<\/span><span class=\"token punctuation\">(<\/span>loggingInterceptor<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><\/p>\n<p>\u62e6\u622a\u5668\u7684\u4f5c\u7528\u548c HTTP \u4e2d\u95f4\u4ef6\u7c7b\u4f3c&#xff0c;\u53ef\u4ee5\u628a\u65e5\u5fd7\u3001\u76d1\u63a7\u3001\u8ba4\u8bc1\u8fd9\u4e9b\u903b\u8f91\u4ece\u4e1a\u52a1\u4ee3\u7801\u91cc\u5265\u79bb\u51fa\u6765\u3002<\/p>\n<h3>\u670d\u52a1\u6ce8\u518c\u4e0e\u53d1\u73b0<\/h3>\n<p>\u670d\u52a1\u591a\u4e86\u4e4b\u540e&#xff0c;\u670d\u52a1 A \u8981\u8c03\u7528\u670d\u52a1 B&#xff0c;\u4e0d\u80fd\u786c\u7f16\u7801 B \u7684\u5730\u5740&#xff0c;\u56e0\u4e3a B \u53ef\u80fd\u591a\u5b9e\u4f8b\u90e8\u7f72\u3001\u52a8\u6001\u6269\u7f29\u5bb9\u3002\u8fd9\u65f6\u5c31\u9700\u8981\u670d\u52a1\u6ce8\u518c\u4e0e\u53d1\u73b0\u3002<\/p>\n<p>\u5e38\u89c1\u7684\u65b9\u6848\u6709&#xff1a;<\/p>\n<ul>\n<li>Consul&#xff1a;\u529f\u80fd\u5168&#xff0c;\u652f\u6301\u5065\u5eb7\u68c0\u67e5\u3001KV \u5b58\u50a8\u3002<\/li>\n<li>etcd&#xff1a;Kubernetes \u7684\u5e95\u5c42\u5b58\u50a8&#xff0c;\u5e38\u7528\u4e8e\u670d\u52a1\u53d1\u73b0\u3002<\/li>\n<li>Nacos&#xff1a;\u963f\u91cc\u5f00\u6e90&#xff0c;\u652f\u6301\u914d\u7f6e\u4e2d\u5fc3\u548c\u670d\u52a1\u53d1\u73b0\u3002<\/li>\n<li>Kubernetes Service&#xff1a;\u5982\u679c\u4f60\u8dd1\u5728 K8s \u4e0a&#xff0c;\u76f4\u63a5\u7528\u5b83\u81ea\u5e26\u7684\u670d\u52a1\u53d1\u73b0\u5c31\u884c\u3002<\/li>\n<\/ul>\n<p>\u4ee5 etcd \u4e3a\u4f8b&#xff0c;\u670d\u52a1\u542f\u52a8\u65f6\u6ce8\u518c\u81ea\u5df1&#xff1a;<\/p>\n<p><span class=\"token keyword\">func<\/span> <span class=\"token function\">register<\/span><span class=\"token punctuation\">(<\/span>etcdClient <span class=\"token operator\">*<\/span>clientv3<span class=\"token punctuation\">.<\/span>Client<span class=\"token punctuation\">,<\/span> serviceName<span class=\"token punctuation\">,<\/span> addr <span class=\"token builtin\">string<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token builtin\">error<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    lease<span class=\"token punctuation\">,<\/span> err <span class=\"token operator\">:&#061;<\/span> etcdClient<span class=\"token punctuation\">.<\/span><span class=\"token function\">Grant<\/span><span class=\"token punctuation\">(<\/span>context<span class=\"token punctuation\">.<\/span><span class=\"token function\">Background<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">10<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token keyword\">if<\/span> err <span class=\"token operator\">!&#061;<\/span> <span class=\"token boolean\">nil<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">return<\/span> err<br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n    key <span class=\"token operator\">:&#061;<\/span> fmt<span class=\"token punctuation\">.<\/span><span class=\"token function\">Sprintf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\/services\/%s\/%s&#034;<\/span><span class=\"token punctuation\">,<\/span> serviceName<span class=\"token punctuation\">,<\/span> addr<span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token boolean\">_<\/span><span class=\"token punctuation\">,<\/span> err <span class=\"token operator\">&#061;<\/span> etcdClient<span class=\"token punctuation\">.<\/span><span class=\"token function\">Put<\/span><span class=\"token punctuation\">(<\/span>context<span class=\"token punctuation\">.<\/span><span class=\"token function\">Background<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> key<span class=\"token punctuation\">,<\/span> addr<span class=\"token punctuation\">,<\/span> clientv3<span class=\"token punctuation\">.<\/span><span class=\"token function\">WithLease<\/span><span class=\"token punctuation\">(<\/span>lease<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token keyword\">if<\/span> err <span class=\"token operator\">!&#061;<\/span> <span class=\"token boolean\">nil<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">return<\/span> err<br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token comment\">\/\/ \u5b9a\u671f\u7eed\u7ea6<\/span><br \/>\n    <span class=\"token keyword\">go<\/span> <span class=\"token keyword\">func<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">for<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            etcdClient<span class=\"token punctuation\">.<\/span><span class=\"token function\">KeepAliveOnce<\/span><span class=\"token punctuation\">(<\/span>context<span class=\"token punctuation\">.<\/span><span class=\"token function\">Background<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> lease<span class=\"token punctuation\">.<\/span>ID<span class=\"token punctuation\">)<\/span><br \/>\n            time<span class=\"token punctuation\">.<\/span><span class=\"token function\">Sleep<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">5<\/span> <span class=\"token operator\">*<\/span> time<span class=\"token punctuation\">.<\/span>Second<span class=\"token punctuation\">)<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token keyword\">return<\/span> <span class=\"token boolean\">nil<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p>\u8c03\u7528\u65b9\u901a\u8fc7\u76d1\u542c \/services\/user\/ \u524d\u7f00&#xff0c;\u83b7\u53d6\u6240\u6709\u53ef\u7528\u5b9e\u4f8b\u7684\u5730\u5740&#xff0c;\u5ba2\u6237\u7aef\u8d1f\u8f7d\u5747\u8861\u9009\u4e00\u4e2a\u8c03\u7528\u3002<\/p>\n<p>\u5b9e\u9645\u4e0a&#xff0c;\u5f88\u591a gRPC \u5ba2\u6237\u7aef\u5e93&#xff08;\u6bd4\u5982 grpc-go \u7684 resolver&#xff09;\u5df2\u7ecf\u5185\u7f6e\u4e86\u670d\u52a1\u53d1\u73b0\u7684\u652f\u6301&#xff0c;\u914d\u7f6e\u597d resolver \u540e\u53ef\u4ee5\u81ea\u52a8\u611f\u77e5\u5b9e\u4f8b\u53d8\u5316\u3002<\/p>\n<h3>\u94fe\u8def\u8ffd\u8e2a<\/h3>\n<p>\u5fae\u670d\u52a1\u8c03\u7528\u94fe\u5f88\u957f&#xff0c;\u4e00\u4e2a\u8bf7\u6c42\u53ef\u80fd\u7ecf\u8fc7 A -&gt; B -&gt; C -&gt; D&#xff0c;\u51fa\u95ee\u9898\u65f6\u6392\u67e5\u5f88\u56f0\u96be\u3002\u94fe\u8def\u8ffd\u8e2a\u5c31\u662f\u4e3a\u4e86\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898&#xff0c;\u628a\u4e00\u6b21\u8bf7\u6c42\u7684\u6240\u6709\u8c03\u7528\u4e32\u8d77\u6765\u3002<\/p>\n<p>OpenTelemetry \u662f\u76ee\u524d\u7684\u4e3b\u6d41\u6807\u51c6&#xff0c;\u517c\u5bb9 Jaeger\u3001Zipkin \u7b49\u540e\u7aef\u3002Go \u91cc\u7528\u5b83\u5206\u4e09\u6b65&#xff1a;<\/p>\n<p>\u521d\u59cb\u5316 tracer&#xff1a;<\/p>\n<p><span class=\"token keyword\">import<\/span> <span class=\"token punctuation\">(<\/span><br \/>\n    <span class=\"token string\">&#034;go.opentelemetry.io\/otel&#034;<\/span><br \/>\n    <span class=\"token string\">&#034;go.opentelemetry.io\/otel\/exporters\/jaeger&#034;<\/span><br \/>\n    <span class=\"token string\">&#034;go.opentelemetry.io\/otel\/sdk\/trace&#034;<\/span><br \/>\n<span class=\"token punctuation\">)<\/span><\/p>\n<p><span class=\"token keyword\">func<\/span> <span class=\"token function\">initTracer<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token operator\">*<\/span>trace<span class=\"token punctuation\">.<\/span>TracerProvider<span class=\"token punctuation\">,<\/span> <span class=\"token builtin\">error<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    exporter<span class=\"token punctuation\">,<\/span> err <span class=\"token operator\">:&#061;<\/span> jaeger<span class=\"token punctuation\">.<\/span><span class=\"token function\">New<\/span><span class=\"token punctuation\">(<\/span>jaeger<span class=\"token punctuation\">.<\/span><span class=\"token function\">WithCollectorEndpoint<\/span><span class=\"token punctuation\">(<\/span>jaeger<span class=\"token punctuation\">.<\/span><span class=\"token function\">WithEndpoint<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;http:\/\/localhost:14268\/api\/traces&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token keyword\">if<\/span> err <span class=\"token operator\">!&#061;<\/span> <span class=\"token boolean\">nil<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">return<\/span> <span class=\"token boolean\">nil<\/span><span class=\"token punctuation\">,<\/span> err<br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n    tp <span class=\"token operator\">:&#061;<\/span> trace<span class=\"token punctuation\">.<\/span><span class=\"token function\">NewTracerProvider<\/span><span class=\"token punctuation\">(<\/span>trace<span class=\"token punctuation\">.<\/span><span class=\"token function\">WithBatcher<\/span><span class=\"token punctuation\">(<\/span>exporter<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    otel<span class=\"token punctuation\">.<\/span><span class=\"token function\">SetTracerProvider<\/span><span class=\"token punctuation\">(<\/span>tp<span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token keyword\">return<\/span> tp<span class=\"token punctuation\">,<\/span> <span class=\"token boolean\">nil<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p>\u5728\u670d\u52a1\u91cc\u521b\u5efa span&#xff1a;<\/p>\n<p>tracer <span class=\"token operator\">:&#061;<\/span> otel<span class=\"token punctuation\">.<\/span><span class=\"token function\">Tracer<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;user-service&#034;<\/span><span class=\"token punctuation\">)<\/span><\/p>\n<p><span class=\"token keyword\">func<\/span> <span class=\"token punctuation\">(<\/span>s <span class=\"token operator\">*<\/span>UserServer<span class=\"token punctuation\">)<\/span> <span class=\"token function\">GetUser<\/span><span class=\"token punctuation\">(<\/span>ctx context<span class=\"token punctuation\">.<\/span>Context<span class=\"token punctuation\">,<\/span> req <span class=\"token operator\">*<\/span>pb<span class=\"token punctuation\">.<\/span>GetUserRequest<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token operator\">*<\/span>pb<span class=\"token punctuation\">.<\/span>GetUserResponse<span class=\"token punctuation\">,<\/span> <span class=\"token builtin\">error<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    ctx<span class=\"token punctuation\">,<\/span> span <span class=\"token operator\">:&#061;<\/span> tracer<span class=\"token punctuation\">.<\/span><span class=\"token function\">Start<\/span><span class=\"token punctuation\">(<\/span>ctx<span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;GetUser&#034;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token keyword\">defer<\/span> span<span class=\"token punctuation\">.<\/span><span class=\"token function\">End<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u8c03\u7528\u4e0b\u6e38\u670d\u52a1\u65f6&#xff0c;\u628a ctx \u4f20\u4e0b\u53bb&#xff0c;trace \u4f1a\u81ea\u52a8\u4e32\u8054<\/span><br \/>\n    order<span class=\"token punctuation\">,<\/span> err <span class=\"token operator\">:&#061;<\/span> s<span class=\"token punctuation\">.<\/span>orderClient<span class=\"token punctuation\">.<\/span><span class=\"token function\">GetOrder<\/span><span class=\"token punctuation\">(<\/span>ctx<span class=\"token punctuation\">,<\/span> req<span class=\"token punctuation\">.<\/span>Id<span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token keyword\">if<\/span> err <span class=\"token operator\">!&#061;<\/span> <span class=\"token boolean\">nil<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        span<span class=\"token punctuation\">.<\/span><span class=\"token function\">RecordError<\/span><span class=\"token punctuation\">(<\/span>err<span class=\"token punctuation\">)<\/span><br \/>\n        <span class=\"token keyword\">return<\/span> <span class=\"token boolean\">nil<\/span><span class=\"token punctuation\">,<\/span> err<br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token keyword\">return<\/span> <span class=\"token operator\">&amp;<\/span>pb<span class=\"token punctuation\">.<\/span>GetUserResponse<span class=\"token punctuation\">{<\/span><span class=\"token operator\">&#8230;<\/span><span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token boolean\">nil<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p>\u5173\u952e\u70b9\u662f ctx \u4e00\u8def\u4f20\u4e0b\u53bb&#xff0c;trace id \u901a\u8fc7 HTTP header \u6216 gRPC metadata \u4f20\u64ad&#xff0c;\u4e0b\u6e38\u670d\u52a1\u81ea\u52a8\u63a5\u4e0a\u3002\u8fd9\u6837\u5728 Jaeger \u754c\u9762\u91cc\u5c31\u80fd\u770b\u5230\u5b8c\u6574\u7684\u8c03\u7528\u94fe&#xff0c;\u6bcf\u4e2a\u73af\u8282\u8017\u65f6\u591a\u5c11&#xff0c;\u4e00\u76ee\u4e86\u7136\u3002<\/p>\n<p>\u6211\u4e4b\u524d\u7ebf\u4e0a\u6392\u67e5\u4e00\u4e2a\u6162\u8bf7\u6c42&#xff0c;\u5c31\u662f\u4ece\u94fe\u8def\u8ffd\u8e2a\u91cc\u53d1\u73b0\u67d0\u4e2a\u6570\u636e\u5e93\u67e5\u8be2\u8017\u65f6 2 \u79d2&#xff0c;\u5f88\u5feb\u5c31\u5b9a\u4f4d\u4e86\u95ee\u9898\u3002<\/p>\n<h3>\u9650\u6d41\u4e0e\u7194\u65ad<\/h3>\n<p>\u5fae\u670d\u52a1\u91cc&#xff0c;\u4e00\u4e2a\u670d\u52a1\u51fa\u95ee\u9898\u53ef\u80fd\u5f15\u53d1\u96ea\u5d29&#xff0c;\u6240\u4ee5\u9650\u6d41\u548c\u7194\u65ad\u662f\u5fc5\u5907\u7684\u4fdd\u62a4\u673a\u5236\u3002<\/p>\n<h4>\u9650\u6d41<\/h4>\n<p>\u5e38\u7528\u7684\u662f\u4ee4\u724c\u6876\u7b97\u6cd5&#xff0c;Go \u91cc\u53ef\u4ee5\u7528 golang.org\/x\/time\/rate&#xff1a;<\/p>\n<p>limiter <span class=\"token operator\">:&#061;<\/span> rate<span class=\"token punctuation\">.<\/span><span class=\"token function\">NewLimiter<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">100<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">200<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token comment\">\/\/ \u6bcf\u79d2 100 \u4e2a&#xff0c;\u6876\u5bb9\u91cf 200<\/span><\/p>\n<p><span class=\"token keyword\">func<\/span> <span class=\"token function\">handler<\/span><span class=\"token punctuation\">(<\/span>w http<span class=\"token punctuation\">.<\/span>ResponseWriter<span class=\"token punctuation\">,<\/span> r <span class=\"token operator\">*<\/span>http<span class=\"token punctuation\">.<\/span>Request<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">if<\/span> <span class=\"token operator\">!<\/span>limiter<span class=\"token punctuation\">.<\/span><span class=\"token function\">Allow<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        http<span class=\"token punctuation\">.<\/span><span class=\"token function\">Error<\/span><span class=\"token punctuation\">(<\/span>w<span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;\u8bf7\u6c42\u8fc7\u4e8e\u9891\u7e41&#034;<\/span><span class=\"token punctuation\">,<\/span> http<span class=\"token punctuation\">.<\/span>StatusTooManyRequests<span class=\"token punctuation\">)<\/span><br \/>\n        <span class=\"token keyword\">return<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token comment\">\/\/ \u4e1a\u52a1\u903b\u8f91<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p>\u8fd9\u4e2a\u5e93\u7b80\u5355\u53ef\u9760&#xff0c;\u5355\u673a\u9650\u6d41\u591f\u7528\u4e86\u3002\u5206\u5e03\u5f0f\u9650\u6d41\u9700\u8981\u501f\u52a9 Redis&#xff0c;\u7528 Lua \u811a\u672c\u5b9e\u73b0\u6ed1\u52a8\u7a97\u53e3\u3002<\/p>\n<h4>\u7194\u65ad<\/h4>\n<p>\u7194\u65ad\u7684\u601d\u8def\u662f&#xff1a;\u5f53\u67d0\u4e2a\u4e0b\u6e38\u670d\u52a1\u8fde\u7eed\u5931\u8d25\u8fbe\u5230\u9608\u503c&#xff0c;\u5c31\u201c\u7194\u65ad\u201d&#xff0c;\u6682\u65f6\u4e0d\u518d\u8c03\u7528\u5b83&#xff0c;\u76f4\u63a5\u8fd4\u56de\u9519\u8bef&#xff0c;\u907f\u514d\u8d44\u6e90\u88ab\u62d6\u57ae\u3002\u8fc7\u4e00\u6bb5\u65f6\u95f4\u518d\u653e\u51e0\u4e2a\u8bf7\u6c42\u8bd5\u63a2&#xff0c;\u5982\u679c\u6062\u590d\u5c31\u5173\u95ed\u7194\u65ad\u3002<\/p>\n<p>Go \u91cc\u53ef\u4ee5\u7528 sony\/gobreaker&#xff1a;<\/p>\n<p><span class=\"token keyword\">var<\/span> cb <span class=\"token operator\">*<\/span>gobreaker<span class=\"token punctuation\">.<\/span>CircuitBreaker<\/p>\n<p><span class=\"token keyword\">func<\/span> <span class=\"token function\">init<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    cb <span class=\"token operator\">&#061;<\/span> gobreaker<span class=\"token punctuation\">.<\/span><span class=\"token function\">NewCircuitBreaker<\/span><span class=\"token punctuation\">(<\/span>gobreaker<span class=\"token punctuation\">.<\/span>Settings<span class=\"token punctuation\">{<\/span><br \/>\n        Name<span class=\"token punctuation\">:<\/span>        <span class=\"token string\">&#034;user-service&#034;<\/span><span class=\"token punctuation\">,<\/span><br \/>\n        MaxRequests<span class=\"token punctuation\">:<\/span> <span class=\"token number\">3<\/span><span class=\"token punctuation\">,<\/span><br \/>\n        Interval<span class=\"token punctuation\">:<\/span>    <span class=\"token number\">10<\/span> <span class=\"token operator\">*<\/span> time<span class=\"token punctuation\">.<\/span>Second<span class=\"token punctuation\">,<\/span><br \/>\n        Timeout<span class=\"token punctuation\">:<\/span>     <span class=\"token number\">30<\/span> <span class=\"token operator\">*<\/span> time<span class=\"token punctuation\">.<\/span>Second<span class=\"token punctuation\">,<\/span><br \/>\n        ReadyToTrip<span class=\"token punctuation\">:<\/span> <span class=\"token keyword\">func<\/span><span class=\"token punctuation\">(<\/span>counts gobreaker<span class=\"token punctuation\">.<\/span>Counts<span class=\"token punctuation\">)<\/span> <span class=\"token builtin\">bool<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token keyword\">return<\/span> counts<span class=\"token punctuation\">.<\/span>ConsecutiveFailures <span class=\"token operator\">&gt;<\/span> <span class=\"token number\">5<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">,<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token keyword\">func<\/span> <span class=\"token function\">callUserService<\/span><span class=\"token punctuation\">(<\/span>ctx context<span class=\"token punctuation\">.<\/span>Context<span class=\"token punctuation\">,<\/span> id <span class=\"token builtin\">int64<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token operator\">*<\/span>pb<span class=\"token punctuation\">.<\/span>GetUserResponse<span class=\"token punctuation\">,<\/span> <span class=\"token builtin\">error<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    result<span class=\"token punctuation\">,<\/span> err <span class=\"token operator\">:&#061;<\/span> cb<span class=\"token punctuation\">.<\/span><span class=\"token function\">Execute<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">func<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token keyword\">interface<\/span><span class=\"token punctuation\">{<\/span><span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token builtin\">error<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">return<\/span> client<span class=\"token punctuation\">.<\/span><span class=\"token function\">GetUser<\/span><span class=\"token punctuation\">(<\/span>ctx<span class=\"token punctuation\">,<\/span> <span class=\"token operator\">&amp;<\/span>pb<span class=\"token punctuation\">.<\/span>GetUserRequest<span class=\"token punctuation\">{<\/span>Id<span class=\"token punctuation\">:<\/span> id<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token keyword\">if<\/span> err <span class=\"token operator\">!&#061;<\/span> <span class=\"token boolean\">nil<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">return<\/span> <span class=\"token boolean\">nil<\/span><span class=\"token punctuation\">,<\/span> err<br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token keyword\">return<\/span> result<span class=\"token punctuation\">.<\/span><span class=\"token punctuation\">(<\/span><span class=\"token operator\">*<\/span>pb<span class=\"token punctuation\">.<\/span>GetUserResponse<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token boolean\">nil<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p>\u7194\u65ad\u5668\u6709\u4e09\u4e2a\u72b6\u6001&#xff1a;\u5173\u95ed&#xff08;\u6b63\u5e38\u8c03\u7528&#xff09;\u3001\u6253\u5f00&#xff08;\u76f4\u63a5\u62d2\u7edd&#xff09;\u3001\u534a\u5f00&#xff08;\u8bd5\u63a2\u6027\u653e\u884c&#xff09;\u3002\u5b9e\u9645\u4f7f\u7528\u65f6&#xff0c;\u7ed3\u5408\u91cd\u8bd5\u548c\u8d85\u65f6&#xff0c;\u670d\u52a1\u7a33\u5b9a\u6027\u4f1a\u597d\u5f88\u591a\u3002<\/p>\n<h3>\u914d\u7f6e\u4e2d\u5fc3<\/h3>\n<p>\u5fae\u670d\u52a1\u5b9e\u4f8b\u591a&#xff0c;\u914d\u7f6e\u6587\u4ef6\u4e0d\u53ef\u80fd\u4e00\u4e2a\u4e2a\u6539&#xff0c;\u6240\u4ee5\u9700\u8981\u914d\u7f6e\u4e2d\u5fc3\u7edf\u4e00\u7ba1\u7406\u3002\u5e38\u89c1\u65b9\u6848\u6709 Nacos\u3001Apollo\u3001Consul KV\u3001etcd\u3002<\/p>\n<p>\u6211\u4e00\u822c\u7528 Nacos \u6216\u8005 Apollo&#xff0c;\u914d\u7f6e\u53d8\u66f4\u540e\u63a8\u9001\u5230\u670d\u52a1\u5b9e\u4f8b&#xff0c;\u652f\u6301\u70ed\u66f4\u65b0&#xff0c;\u4e0d\u7528\u91cd\u542f\u3002\u6bd4\u5982\u7528 Nacos \u7684 Go SDK&#xff1a;<\/p>\n<p>client<span class=\"token punctuation\">,<\/span> <span class=\"token boolean\">_<\/span> <span class=\"token operator\">:&#061;<\/span> vo<span class=\"token punctuation\">.<\/span><span class=\"token function\">NewClient<\/span><span class=\"token punctuation\">(<\/span>vo<span class=\"token punctuation\">.<\/span>NacosClientParam<span class=\"token punctuation\">{<\/span><br \/>\n    ServerConfigs<span class=\"token punctuation\">:<\/span> <span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span>constant<span class=\"token punctuation\">.<\/span>ServerConfig<span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token punctuation\">{<\/span>IpAddr<span class=\"token punctuation\">:<\/span> <span class=\"token string\">&#034;127.0.0.1&#034;<\/span><span class=\"token punctuation\">,<\/span> Port<span class=\"token punctuation\">:<\/span> <span class=\"token number\">8848<\/span><span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">,<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">,<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><\/p>\n<p>config<span class=\"token punctuation\">,<\/span> <span class=\"token boolean\">_<\/span> <span class=\"token operator\">:&#061;<\/span> clients<span class=\"token punctuation\">.<\/span><span class=\"token function\">NewConfigClient<\/span><span class=\"token punctuation\">(<\/span>vo<span class=\"token punctuation\">.<\/span>NacosClientParam<span class=\"token punctuation\">{<\/span><span class=\"token operator\">&#8230;<\/span><span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><br \/>\ncontent<span class=\"token punctuation\">,<\/span> <span class=\"token boolean\">_<\/span> <span class=\"token operator\">:&#061;<\/span> config<span class=\"token punctuation\">.<\/span><span class=\"token function\">GetConfig<\/span><span class=\"token punctuation\">(<\/span>vo<span class=\"token punctuation\">.<\/span>ConfigParam<span class=\"token punctuation\">{<\/span><br \/>\n    DataId<span class=\"token punctuation\">:<\/span> <span class=\"token string\">&#034;user-service.yaml&#034;<\/span><span class=\"token punctuation\">,<\/span><br \/>\n    Group<span class=\"token punctuation\">:<\/span>  <span class=\"token string\">&#034;DEFAULT_GROUP&#034;<\/span><span class=\"token punctuation\">,<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><\/p>\n<p>\u914d\u7f6e\u4e2d\u5fc3\u548c\u670d\u52a1\u53d1\u73b0\u7ecf\u5e38\u4e00\u8d77\u7528&#xff0c;Nacos 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\u7684\u8bdd\u65b0\u589e\u5b57\u6bb5\u7528 omitempty\u3002<\/p>\n<\/li>\n<li>\n<p>\u91cd\u8bd5\u8981\u8c28\u614e&#xff1a;\u91cd\u8bd5\u53ef\u4ee5\u63d0\u5347\u6210\u529f\u7387&#xff0c;\u4f46\u8981\u6ce8\u610f\u5e42\u7b49\u6027&#xff0c;\u5199\u64cd\u4f5c\u76f2\u76ee\u91cd\u8bd5\u53ef\u80fd\u91cd\u590d\u6263\u6b3e\u3002\u4e00\u822c\u53ea\u5bf9\u8bfb\u64cd\u4f5c\u91cd\u8bd5&#xff0c;\u5199\u64cd\u4f5c\u914d\u5408\u5e42\u7b49\u952e\u3002<\/p>\n<\/li>\n<li>\n<p>\u8d85\u65f6\u5fc5\u4e0d\u53ef\u5c11&#xff1a;\u6bcf\u4e2a RPC \u8c03\u7528\u90fd\u8981\u8bbe\u7f6e\u8d85\u65f6&#xff0c;\u7528 context \u63a7\u5236\u3002\u6ca1\u6709\u8d85\u65f6\u7684\u8c03\u7528\u662f\u707e\u96be\u7684\u5f00\u59cb\u3002<\/p>\n<\/li>\n<li>\n<p>\u65e5\u5fd7\u8981\u5e26 trace id&#xff1a;\u6392\u67e5\u95ee\u9898\u65f6&#xff0c;\u901a\u8fc7 trace id 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gobreaker&#xff0c;\u4fdd\u62a4\u670d\u52a1\u7a33\u5b9a\u6027\u3002<\/li>\n<li>\u914d\u7f6e\u4e2d\u5fc3\u7edf\u4e00\u7ba1\u7406\u914d\u7f6e&#xff0c;\u652f\u6301\u70ed\u66f4\u65b0\u3002<\/li>\n<li>\u62c6\u5206\u7c92\u5ea6\u3001\u517c\u5bb9\u6027\u3001\u91cd\u8bd5\u3001\u8d85\u65f6\u3001\u65e5\u5fd7\u662f\u5b9e\u8df5\u4e2d\u7684\u91cd\u70b9\u3002<\/li>\n<\/ul>\n<p>\u5fae\u670d\u52a1\u662f\u4e2a\u5f88\u5927\u7684\u8bdd\u9898&#xff0c;\u8fd9\u7bc7\u53ea\u662f\u628a Go \u751f\u6001\u91cc\u5e38\u89c1\u7684\u4e1c\u897f\u8fc7\u4e86\u4e00\u904d\u3002\u771f\u6b63\u843d\u5730\u65f6\u8fd8\u9700\u8981\u7ed3\u5408\u56e2\u961f\u3001\u4e1a\u52a1\u548c\u57fa\u7840\u8bbe\u65bd\u6765\u9009\u578b\u3002\u4e0b\u4e00\u7bc7\u51c6\u5907\u5199 Go \u4e0e\u4e91\u539f\u751f&#xff0c;\u804a\u804a Docker \u6253\u5305\u3001Kubernetes \u90e8\u7f72\u3001\u5065\u5eb7\u68c0\u67e5\u3001\u4f18\u96c5\u9000\u51fa\u8fd9\u4e9b\u8fd0\u7ef4\u76f8\u5173\u7684\u5185\u5bb9&#xff0c;\u628a\u4ece\u5f00\u53d1\u5230\u4e0a\u7ebf\u7684\u94fe\u8def\u8865\u9f50\u3002<\/p>\n<p>\u5982\u679c\u8fd9\u7bc7\u6587\u7ae0\u5bf9\u4f60\u6709\u5e2e\u52a9&#xff0c;\u6b22\u8fce\u70b9\u8d5e\u6536\u85cf&#xff0c;\u8bc4\u8bba\u533a\u4e00\u8d77\u4ea4\u6d41\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u524d\u9762\u628a Go \u7684\u8bed\u8a00\u7279\u6027\u548c\u5de5\u7a0b\u5b9e\u8df5\u90fd\u8fc7\u4e86\u4e00\u904d&#xff0c;\u57fa\u7840\u7b97\u662f\u624e\u5b9e\u4e86\u3002\u4f46\u771f\u5b9e\u7684\u5de5\u4f5c\u573a\u666f\u91cc&#xff0c;\u5f88\u591a\u9879\u76ee\u90fd\u662f\u5fae\u670d\u52a1\u67b6\u6784&#xff0c;\u5c24\u5176\u662f\u540e\u7aef\u5c97\u4f4d&#xff0c;\u9762\u8bd5\u65f6\u51e0\u4e4e\u8eb2\u4e0d\u5f00\u201c\u4f60\u4eec\u9879\u76ee\u600e\u4e48\u62c6\u670d\u52a1\u7684\u201d\u201c\u670d\u52a1\u4e4b\u95f4\u600e\u4e48\u8c03\u7528\u201d\u201c\u600e\u4e48\u4fdd\u8bc1\u7a33\u5b9a\u6027\u201d\u8fd9\u7c7b\u95ee\u9898\u3002\u8fd9\u7bc7\u5c31\u7ed3\u5408\u6211\u81ea\u5df1\u7684\u7406\u89e3&#xff0c;\u628a Go \u5728\u5fae\u670d\u52a1\u4e2d\u7684\u5e38\u89c1\u5b9e\u8df5\u68b3\u7406\u4e00\u4e0b&#xff0c;\u5305\u62ec RPC\u3001\u670d\u52a1\u6ce8\u518c\u53d1\u73b0\u3001\u94fe\u8def\u8ffd\u8e2a\u3001\u9650\u6d41\u7194\u65ad\u7b49\u3002<br \/>\n\u4e3a\u4ec0\u4e48 Go \u9002\u5408\u5199\u5fae\u670d\u52a1<br \/>\nGo \u5728\u5fae\u670d\u52a1\u9886\u57df\u7279\u522b\u53d7\u6b22\u8fce&amp;#xff0c<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[746,1348,305],"topic":[],"class_list":["post-103946","post","type-post","status-publish","format-standard","hentry","category-server","tag-golang","tag-1348","tag-305"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v20.3 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Go \u8bed\u8a00\u5165\u95e8\u7b14\u8bb0\uff08\u5341\u4e03\uff09\uff1a\u5fae\u670d\u52a1\u5e38\u89c1\u5b9e\u8df5\u2014\u2014\u4ece\u5355\u4f53\u5230\u5206\u5e03\u5f0f - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" 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