✨ 完善模板

core/config.go

@@ -0,0 +1,33 @@
+package core
+
+import (
+	"gopkg.in/yaml.v3"
+	"log"
+)
+
+type Config struct {
+	Gateway struct {
+		Routes []struct {
+			Path    string `yaml:"path"`
+			Service string `yaml:"service"`
+		} `yaml:"routes"`
+	} `yaml:"gateway"`
+}
+
+func ConfigChanged(data string) {
+	// 从配置文件解析为对象
+	config := Config{}
+	err := yaml.Unmarshal([]byte(data), &config)
+	if err != nil {
+		log.Printf("解析配置文本失败: %v\n", err.Error())
+		return
+	}
+	rs := config.Gateway.Routes
+	var sma []serviceMap
+	for _, r := range rs {
+		item := NewServiceMapItem(r.Path, r.Service)
+		sma = append(sma, item)
+	}
+	ServiceMap = sma
+	log.Println("配置文件解析完毕")
+}

core/core.go

@@ -0,0 +1,6 @@
+package core
+
+var (
+	NacosClient nacosClient
+	ServiceMap  []serviceMap
+)

core/nacos.go

@@ -0,0 +1,77 @@
+package core
+
+import (
+	"fmt"
+	"github.com/gin-gonic/gin"
+	"github.com/nacos-group/nacos-sdk-go/clients/config_client"
+	"github.com/nacos-group/nacos-sdk-go/clients/naming_client"
+	"github.com/nacos-group/nacos-sdk-go/vo"
+	"io/ioutil"
+	"log"
+	"net/http"
+	"strings"
+)
+
+type nacosClient struct {
+	client naming_client.INamingClient
+	config config_client.IConfigClient
+}
+
+func NewNacosClient(c naming_client.INamingClient, n config_client.IConfigClient) nacosClient {
+	return nacosClient{c, n}
+}
+
+// Remote 发起远程调用
+func (n nacosClient) Remote(ctx *gin.Context) {
+	// 取出URI
+	uri := ctx.Request.RequestURI
+	// 截取第二个/前面那一段
+	pathAry := strings.Split(uri, "/")
+	serviceName := ""
+	apiService := fmt.Sprintf("/%v", pathAry[1])
+	for _, s := range ServiceMap {
+		if s.Path != "" && s.Path == apiService {
+			serviceName = s.Service
+			break
+		}
+	}
+	if serviceName == "" {
+		ctx.String(http.StatusNotFound, "服务不可达")
+		return
+	}
+
+	instance, err := n.client.SelectOneHealthyInstance(vo.SelectOneHealthInstanceParam{
+		ServiceName: serviceName,
+	})
+	if err != nil {
+		log.Printf("获取健康服务失败: %v\n", err.Error())
+		return
+	}
+	// 组装内部接口
+	apiUrl := fmt.Sprintf("http://%v:%v%v", instance.Ip, instance.Port, uri)
+	// 创建Request对象
+	req, err := http.NewRequest(ctx.Request.Method, apiUrl, ctx.Request.Body)
+	if err != nil {
+		log.Printf("请求异常: %v\n", err)
+		return
+	}
+	// 填充Form参数(大概率用不上)
+	req.Form = ctx.Request.Form
+	// 填充链路追踪标记
+	req.Header.Add("uber-trace-id", ctx.GetString("UberTraceId"))
+	// 请求ID
+	req.Header.Add("X-Request-Id", ctx.GetString("X-Request-Id"))
+	// 设置来源
+	req.Header.Add("From", "internal")
+	// 发起请求
+	client := &http.Client{}
+	response, err := client.Do(req)
+	if err != nil {
+		log.Printf("请求异常: %v\n", err)
+		return
+	}
+	// 返回结果到前端
+	sss, _ := ioutil.ReadAll(response.Body)
+	log.Println(string(sss))
+	ctx.String(response.StatusCode, string(sss))
+}

core/service.go

@@ -0,0 +1,15 @@
+package core
+
+type serviceMap struct {
+	Path    string
+	Service string
+}
+
+func NewServiceMapItem(k, v string) serviceMap {
+	//var sma []serviceMap
+	// 从Nacos读取规则
+	// gateway:
+	//		- path: /user
+	//		  service: mb-user-service
+	return serviceMap{k, v}
+}

feign.go

@@ -1,103 +0,0 @@
-package main
-
-import (
-	"fmt"
-	"github.com/nacos-group/nacos-sdk-go/clients"
-	"github.com/nacos-group/nacos-sdk-go/clients/naming_client"
-	"github.com/nacos-group/nacos-sdk-go/common/constant"
-	"github.com/nacos-group/nacos-sdk-go/vo"
-	"io/ioutil"
-	"log"
-	"net/http"
-)
-
-var nameClient naming_client.INamingClient
-
-func initNacos() {
-	sc := []constant.ServerConfig{
-		*constant.NewServerConfig("nacos", 8848),
-	}
-	cc := constant.ClientConfig{
-		AppName: "gateway",
-		//NamespaceId:         "e56f939e-6d22-449c-97d2-39a8ae5afd58", //namespace id
-		NamespaceId:         "",
-		TimeoutMs:           5000,
-		NotLoadCacheAtStart: true,
-		RotateTime:          "1h",
-		MaxAge:              3,
-		LogLevel:            "debug",
-	}
-	client, err := clients.NewNamingClient(
-		vo.NacosClientParam{
-			ClientConfig:  &cc,
-			ServerConfigs: sc,
-		},
-	)
-
-	if err != nil {
-		panic(err)
-	}
-	ip := "gateway-demo"
-	if ips := getIps(); ips != nil {
-		ip = ips[0]
-	}
-	success, _ := client.RegisterInstance(vo.RegisterInstanceParam{
-		Ip:          ip,
-		Port:        8889,
-		Weight:      10,
-		Enable:      true,
-		Healthy:     true,
-		ServiceName: "gateway",
-		Ephemeral:   true,
-	})
-	log.Println("Nacos注册结果: ", success)
-	if !success {
-		log.Fatal("服务注册失败，退出程序")
-	}
-	nameClient = client
-}
-
-func get(method, url string) string {
-	info, err := nameClient.SelectAllInstances(vo.SelectAllInstancesParam{
-		ServiceName: "api1",
-	})
-	if err != nil {
-		return "获取服务异常：" + err.Error()
-	}
-	log.Println("获取到实例数量：", len(info))
-	instance, err := nameClient.SelectOneHealthyInstance(vo.SelectOneHealthInstanceParam{
-		ServiceName: "api1",
-		//GroupName:   "Micro",                          // 默认值DEFAULT_GROUP
-		//Clusters:    []string{pojo.InitConf.CurVersion}, // 默认值DEFAULT
-	})
-	if err != nil {
-		return "获取服务异常：" + err.Error()
-	}
-	apiUrl := fmt.Sprintf("http://%v:%v%v", instance.Ip, instance.Port, url)
-	response, err := http.Get(apiUrl)
-	if err != nil {
-		log.Fatalf("请求异常: %v", err)
-	}
-	content, err := ioutil.ReadAll(response.Body)
-	respBody := string(content)
-	return respBody
-}
-
-func post(url string) string {
-	instance, err := nameClient.SelectOneHealthyInstance(vo.SelectOneHealthInstanceParam{
-		ServiceName: "api1",
-		//GroupName:   "Micro",                          // 默认值DEFAULT_GROUP
-		//Clusters:    []string{pojo.InitConf.CurVersion}, // 默认值DEFAULT
-	})
-	if err != nil {
-		return "获取服务异常：" + err.Error()
-	}
-	apiUrl := fmt.Sprintf("http://%v:%v%v", instance.Ip, instance.Port, url)
-	response, err := http.Post(apiUrl, "application/json", nil)
-	if err != nil {
-		log.Fatalf("请求异常: %v", err)
-	}
-	content, err := ioutil.ReadAll(response.Body)
-	respBody := string(content)
-	return respBody
-}

go.mod

@@ -5,9 +5,13 @@ go 1.17
 require (
 	github.com/gin-gonic/gin v1.7.4
 	github.com/nacos-group/nacos-sdk-go v1.0.8
+	github.com/opentracing/opentracing-go v1.2.0
+	github.com/uber/jaeger-client-go v2.29.1+incompatible
+	gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c
 )
 
 require (
+	github.com/HdrHistogram/hdrhistogram-go v1.1.2 // indirect
 	github.com/aliyun/alibaba-cloud-sdk-go v1.61.18 // indirect
 	github.com/buger/jsonparser v0.0.0-20181115193947-bf1c66bbce23 // indirect
 	github.com/gin-contrib/sse v0.1.0 // indirect
@@ -24,14 +28,18 @@ require (
 	github.com/mattn/go-isatty v0.0.12 // indirect
 	github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect
 	github.com/modern-go/reflect2 v0.0.0-20180701023420-4b7aa43c6742 // indirect
+	github.com/niemeyer/pretty v0.0.0-20200227124842-a10e7caefd8e // indirect
 	github.com/pkg/errors v0.9.1 // indirect
+	github.com/stretchr/testify v1.7.0 // indirect
 	github.com/toolkits/concurrent v0.0.0-20150624120057-a4371d70e3e3 // indirect
+	github.com/uber/jaeger-lib v2.4.1+incompatible // indirect
 	github.com/ugorji/go/codec v1.1.7 // indirect
 	go.uber.org/atomic v1.6.0 // indirect
 	go.uber.org/multierr v1.5.0 // indirect
 	go.uber.org/zap v1.15.0 // indirect
 	golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9 // indirect
 	golang.org/x/sys v0.0.0-20200116001909-b77594299b42 // indirect
+	gopkg.in/check.v1 v1.0.0-20200227125254-8fa46927fb4f // indirect
 	gopkg.in/ini.v1 v1.42.0 // indirect
 	gopkg.in/yaml.v2 v2.2.8 // indirect
 )

go.sum

@@ -1,20 +1,28 @@
+dmitri.shuralyov.com/gpu/mtl v0.0.0-20190408044501-666a987793e9/go.mod h1:H6x//7gZCb22OMCxBHrMx7a5I7Hp++hsVxbQ4BYO7hU=
 github.com/BurntSushi/toml v0.3.1 h1:WXkYYl6Yr3qBf1K79EBnL4mak0OimBfB0XUf9Vl28OQ=
 github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
+github.com/BurntSushi/xgb v0.0.0-20160522181843-27f122750802/go.mod h1:IVnqGOEym/WlBOVXweHU+Q+/VP0lqqI8lqeDx9IjBqo=
+github.com/HdrHistogram/hdrhistogram-go v1.1.2 h1:5IcZpTvzydCQeHzK4Ef/D5rrSqwxob0t8PQPMybUNFM=
+github.com/HdrHistogram/hdrhistogram-go v1.1.2/go.mod h1:yDgFjdqOqDEKOvasDdhWNXYg9BVp4O+o5f6V/ehm6Oo=
+github.com/ajstarks/svgo v0.0.0-20180226025133-644b8db467af/go.mod h1:K08gAheRH3/J6wwsYMMT4xOr94bZjxIelGM0+d/wbFw=
 github.com/aliyun/alibaba-cloud-sdk-go v1.61.18 h1:zOVTBdCKFd9JbCKz9/nt+FovbjPFmb7mUnp8nH9fQBA=
 github.com/aliyun/alibaba-cloud-sdk-go v1.61.18/go.mod h1:v8ESoHo4SyHmuB4b1tJqDHxfTGEciD+yhvOU/5s1Rfk=
 github.com/buger/jsonparser v0.0.0-20181115193947-bf1c66bbce23 h1:D21IyuvjDCshj1/qq+pCNd3VZOAEI9jy6Bi131YlXgI=
 github.com/buger/jsonparser v0.0.0-20181115193947-bf1c66bbce23/go.mod h1:bbYlZJ7hK1yFx9hf58LP0zeX7UjIGs20ufpu3evjr+s=
+github.com/creack/pty v1.1.9/go.mod h1:oKZEueFk5CKHvIhNR5MUki03XCEU+Q6VDXinZuGJ33E=
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/fastly/go-utils v0.0.0-20180712184237-d95a45783239 h1:Ghm4eQYC0nEPnSJdVkTrXpu9KtoVCSo1hg7mtI7G9KU=
 github.com/fastly/go-utils v0.0.0-20180712184237-d95a45783239/go.mod h1:Gdwt2ce0yfBxPvZrHkprdPPTTS3N5rwmLE8T22KBXlw=
+github.com/fogleman/gg v1.2.1-0.20190220221249-0403632d5b90/go.mod h1:R/bRT+9gY/C5z7JzPU0zXsXHKM4/ayA+zqcVNZzPa1k=
 github.com/gin-contrib/sse v0.1.0 h1:Y/yl/+YNO8GZSjAhjMsSuLt29uWRFHdHYUb5lYOV9qE=
 github.com/gin-contrib/sse v0.1.0/go.mod h1:RHrZQHXnP2xjPF+u1gW/2HnVO7nvIa9PG3Gm+fLHvGI=
 github.com/gin-gonic/gin v1.7.4 h1:QmUZXrvJ9qZ3GfWvQ+2wnW/1ePrTEJqPKMYEU3lD/DM=
 github.com/gin-gonic/gin v1.7.4/go.mod h1:jD2toBW3GZUr5UMcdrwQA10I7RuaFOl/SGeDjXkfUtY=
 github.com/go-errors/errors v1.0.1 h1:LUHzmkK3GUKUrL/1gfBUxAHzcev3apQlezX/+O7ma6w=
 github.com/go-errors/errors v1.0.1/go.mod h1:f4zRHt4oKfwPJE5k8C9vpYG+aDHdBFUsgrm6/TyX73Q=
+github.com/go-gl/glfw v0.0.0-20190409004039-e6da0acd62b1/go.mod h1:vR7hzQXu2zJy9AVAgeJqvqgH9Q5CA+iKCZ2gyEVpxRU=
 github.com/go-playground/assert/v2 v2.0.1 h1:MsBgLAaY856+nPRTKrp3/OZK38U/wa0CcBYNjji3q3A=
 github.com/go-playground/assert/v2 v2.0.1/go.mod h1:VDjEfimB/XKnb+ZQfWdccd7VUvScMdVu0Titje2rxJ4=
 github.com/go-playground/locales v0.13.0 h1:HyWk6mgj5qFqCT5fjGBuRArbVDfE4hi8+e8ceBS/t7Q=
@@ -24,10 +32,12 @@ github.com/go-playground/universal-translator v0.17.0/go.mod h1:UkSxE5sNxxRwHyU+
 github.com/go-playground/validator/v10 v10.4.1 h1:pH2c5ADXtd66mxoE0Zm9SUhxE20r7aM3F26W0hOn+GE=
 github.com/go-playground/validator/v10 v10.4.1/go.mod h1:nlOn6nFhuKACm19sB/8EGNn9GlaMV7XkbRSipzJ0Ii4=
 github.com/goji/httpauth v0.0.0-20160601135302-2da839ab0f4d/go.mod h1:nnjvkQ9ptGaCkuDUx6wNykzzlUixGxvkme+H/lnzb+A=
+github.com/golang/freetype v0.0.0-20170609003504-e2365dfdc4a0/go.mod h1:E/TSTwGwJL78qG/PmXZO1EjYhfJinVAhrmmHX6Z8B9k=
 github.com/golang/mock v1.3.1 h1:qGJ6qTW+x6xX/my+8YUVl4WNpX9B7+/l2tRsHGZ7f2s=
 github.com/golang/mock v1.3.1/go.mod h1:sBzyDLLjw3U8JLTeZvSv8jJB+tU5PVekmnlKIyFUx0Y=
 github.com/golang/protobuf v1.3.3 h1:gyjaxf+svBWX08ZjK86iN9geUJF0H6gp2IRKX6Nf6/I=
 github.com/golang/protobuf v1.3.3/go.mod h1:vzj43D7+SQXF/4pzW/hwtAqwc6iTitCiVSaWz5lYuqw=
+github.com/google/go-cmp v0.5.4/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
 github.com/google/gofuzz v1.0.0/go.mod h1:dBl0BpW6vV/+mYPU4Po3pmUjxk6FQPldtuIdl/M65Eg=
 github.com/google/renameio v0.1.0/go.mod h1:KWCgfxg9yswjAJkECMjeO8J8rahYeXnNhOm40UhjYkI=
 github.com/gopherjs/gopherjs v0.0.0-20181017120253-0766667cb4d1 h1:EGx4pi6eqNxGaHF6qqu48+N2wcFQ5qg5FXgOdqsJ5d8=
@@ -44,12 +54,13 @@ github.com/json-iterator/go v1.1.9 h1:9yzud/Ht36ygwatGx56VwCZtlI/2AD15T1X2sjSuGn
 github.com/json-iterator/go v1.1.9/go.mod h1:KdQUCv79m/52Kvf8AW2vK1V8akMuk1QjK/uOdHXbAo4=
 github.com/jtolds/gls v4.20.0+incompatible h1:xdiiI2gbIgH/gLH7ADydsJ1uDOEzR8yvV7C0MuV77Wo=
 github.com/jtolds/gls v4.20.0+incompatible/go.mod h1:QJZ7F/aHp+rZTRtaJ1ow/lLfFfVYBRgL+9YlvaHOwJU=
+github.com/jung-kurt/gofpdf v1.0.3-0.20190309125859-24315acbbda5/go.mod h1:7Id9E/uU8ce6rXgefFLlgrJj/GYY22cpxn+r32jIOes=
 github.com/kisielk/gotool v1.0.0/go.mod h1:XhKaO+MFFWcvkIS/tQcRk01m1F5IRFswLeQ+oQHNcck=
-github.com/kr/pretty v0.1.0 h1:L/CwN0zerZDmRFUapSPitk6f+Q3+0za1rQkzVuMiMFI=
 github.com/kr/pretty v0.1.0/go.mod h1:dAy3ld7l9f0ibDNOQOHHMYYIIbhfbHSm3C4ZsoJORNo=
 github.com/kr/pty v1.1.1/go.mod h1:pFQYn66WHrOpPYNljwOMqo10TkYh1fy3cYio2l3bCsQ=
-github.com/kr/text v0.1.0 h1:45sCR5RtlFHMR4UwH9sdQ5TC8v0qDQCHnXt+kaKSTVE=
 github.com/kr/text v0.1.0/go.mod h1:4Jbv+DJW3UT/LiOwJeYQe1efqtUx/iVham/4vfdArNI=
+github.com/kr/text v0.2.0 h1:5Nx0Ya0ZqY2ygV366QzturHI13Jq95ApcVaJBhpS+AY=
+github.com/kr/text v0.2.0/go.mod h1:eLer722TekiGuMkidMxC/pM04lWEeraHUUmBw8l2grE=
 github.com/leodido/go-urn v1.2.0 h1:hpXL4XnriNwQ/ABnpepYM/1vCLWNDfUNts8dX3xTG6Y=
 github.com/leodido/go-urn v1.2.0/go.mod h1:+8+nEpDfqqsY+g338gtMEUOtuK+4dEMhiQEgxpxOKII=
 github.com/lestrrat/go-envload v0.0.0-20180220120943-6ed08b54a570 h1:0iQektZGS248WXmGIYOwRXSQhD4qn3icjMpuxwO7qlo=
@@ -67,6 +78,10 @@ github.com/modern-go/reflect2 v0.0.0-20180701023420-4b7aa43c6742 h1:Esafd1046DLD
 github.com/modern-go/reflect2 v0.0.0-20180701023420-4b7aa43c6742/go.mod h1:bx2lNnkwVCuqBIxFjflWJWanXIb3RllmbCylyMrvgv0=
 github.com/nacos-group/nacos-sdk-go v1.0.8 h1:8pEm05Cdav9sQgJSv5kyvlgfz0SzFUUGI3pWX6SiSnM=
 github.com/nacos-group/nacos-sdk-go v1.0.8/go.mod h1:hlAPn3UdzlxIlSILAyOXKxjFSvDJ9oLzTJ9hLAK1KzA=
+github.com/niemeyer/pretty v0.0.0-20200227124842-a10e7caefd8e h1:fD57ERR4JtEqsWbfPhv4DMiApHyliiK5xCTNVSPiaAs=
+github.com/niemeyer/pretty v0.0.0-20200227124842-a10e7caefd8e/go.mod h1:zD1mROLANZcx1PVRCS0qkT7pwLkGfwJo4zjcN/Tysno=
+github.com/opentracing/opentracing-go v1.2.0 h1:uEJPy/1a5RIPAJ0Ov+OIO8OxWu77jEv+1B0VhjKrZUs=
+github.com/opentracing/opentracing-go v1.2.0/go.mod h1:GxEUsuufX4nBwe+T+Wl9TAgYrxe9dPLANfrWvHYVTgc=
 github.com/pkg/errors v0.8.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
 github.com/pkg/errors v0.9.1 h1:FEBLx1zS214owpjy7qsBeixbURkuhQAwrK5UwLGTwt4=
 github.com/pkg/errors v0.9.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
@@ -77,15 +92,21 @@ github.com/smartystreets/assertions v0.0.0-20180927180507-b2de0cb4f26d h1:zE9ykE
 github.com/smartystreets/assertions v0.0.0-20180927180507-b2de0cb4f26d/go.mod h1:OnSkiWE9lh6wB0YB77sQom3nweQdgAjqCqsofrRNTgc=
 github.com/smartystreets/goconvey v0.0.0-20190330032615-68dc04aab96a h1:pa8hGb/2YqsZKovtsgrwcDH1RZhVbTKCjLp47XpqCDs=
 github.com/smartystreets/goconvey v0.0.0-20190330032615-68dc04aab96a/go.mod h1:syvi0/a8iFYH4r/RixwvyeAJjdLS9QV7WQ/tjFTllLA=
+github.com/stretchr/objx v0.1.0 h1:4G4v2dO3VZwixGIRoQ5Lfboy6nUhCyYzaqnIAPPhYs4=
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
 github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI=
 github.com/stretchr/testify v1.4.0/go.mod h1:j7eGeouHqKxXV5pUuKE4zz7dFj8WfuZ+81PSLYec5m4=
-github.com/stretchr/testify v1.5.1 h1:nOGnQDM7FYENwehXlg/kFVnos3rEvtKTjRvOWSzb6H4=
 github.com/stretchr/testify v1.5.1/go.mod h1:5W2xD1RspED5o8YsWQXVCued0rvSQ+mT+I5cxcmMvtA=
+github.com/stretchr/testify v1.7.0 h1:nwc3DEeHmmLAfoZucVR881uASk0Mfjw8xYJ99tb5CcY=
+github.com/stretchr/testify v1.7.0/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
 github.com/tebeka/strftime v0.1.3 h1:5HQXOqWKYRFfNyBMNVc9z5+QzuBtIXy03psIhtdJYto=
 github.com/tebeka/strftime v0.1.3/go.mod h1:7wJm3dZlpr4l/oVK0t1HYIc4rMzQ2XJlOMIUJUJH6XQ=
 github.com/toolkits/concurrent v0.0.0-20150624120057-a4371d70e3e3 h1:kF/7m/ZU+0D4Jj5eZ41Zm3IH/J8OElK1Qtd7tVKAwLk=
 github.com/toolkits/concurrent v0.0.0-20150624120057-a4371d70e3e3/go.mod h1:QDlpd3qS71vYtakd2hmdpqhJ9nwv6mD6A30bQ1BPBFE=
+github.com/uber/jaeger-client-go v2.29.1+incompatible h1:R9ec3zO3sGpzs0abd43Y+fBZRJ9uiH6lXyR/+u6brW4=
+github.com/uber/jaeger-client-go v2.29.1+incompatible/go.mod h1:WVhlPFC8FDjOFMMWRy2pZqQJSXxYSwNYOkTr/Z6d3Kk=
+github.com/uber/jaeger-lib v2.4.1+incompatible h1:td4jdvLcExb4cBISKIpHuGoVXh+dVKhn2Um6rjCsSsg=
+github.com/uber/jaeger-lib v2.4.1+incompatible/go.mod h1:ComeNDZlWwrWnDv8aPp0Ba6+uUTzImX/AauajbLI56U=
 github.com/ugorji/go v1.1.7 h1:/68gy2h+1mWMrwZFeD1kQialdSzAb432dtpeJ42ovdo=
 github.com/ugorji/go v1.1.7/go.mod h1:kZn38zHttfInRq0xu/PH0az30d+z6vm202qpg1oXVMw=
 github.com/ugorji/go/codec v1.1.7 h1:2SvQaVZ1ouYrrKKwoSk2pzd4A9evlKJb9oTL+OaLUSs=
@@ -102,37 +123,61 @@ golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACk
 golang.org/x/crypto v0.0.0-20190510104115-cbcb75029529/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
 golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9 h1:psW17arqaxU48Z5kZ0CQnkZWQJsqcURM6tKiBApRjXI=
 golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
+golang.org/x/exp v0.0.0-20180321215751-8460e604b9de/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA=
+golang.org/x/exp v0.0.0-20180807140117-3d87b88a115f/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA=
+golang.org/x/exp v0.0.0-20190125153040-c74c464bbbf2/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA=
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+golang.org/x/image v0.0.0-20180708004352-c73c2afc3b81/go.mod h1:ux5Hcp/YLpHSI86hEcLt0YII63i6oz57MZXIpbrjZUs=
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 golang.org/x/lint v0.0.0-20190930215403-16217165b5de h1:5hukYrvBGR8/eNkX5mdUezrA6JiaEZDtJb9Ei+1LlBs=
 golang.org/x/lint v0.0.0-20190930215403-16217165b5de/go.mod h1:6SW0HCj/g11FgYtHlgUYUwCkIfeOF89ocIRzGO/8vkc=
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 golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
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 gopkg.in/ini.v1 v1.42.0/go.mod h1:pNLf8WUiyNEtQjuu5G5vTm06TEv9tsIgeAvK8hOrP4k=
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+gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c h1:dUUwHk2QECo/6vqA44rthZ8ie2QXMNeKRTHCNY2nXvo=
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 honnef.co/go/tools v0.0.1-2019.2.3/go.mod h1:a3bituU0lyd329TUQxRnasdCoJDkEUEAqEt0JzvZhAg=
+rsc.io/pdf v0.1.1/go.mod h1:n8OzWcQ6Sp37PL01nO98y4iUCRdTGarVfzxY20ICaU4=

initialization/init.go

@@ -0,0 +1,9 @@
+package initialization
+
+// InitSystem 初始化系统
+func InitSystem() {
+	// 服务路由规则
+	//core.InitServiceMap()
+	// Nacos
+	initNacos()
+}

initialization/nacos.go

@@ -0,0 +1,76 @@
+package initialization
+
+import (
+	"gateway/core"
+	"gateway/utils"
+	"github.com/nacos-group/nacos-sdk-go/clients"
+	"github.com/nacos-group/nacos-sdk-go/common/constant"
+	"github.com/nacos-group/nacos-sdk-go/vo"
+	"log"
+)
+
+// 初始化Nacos注册
+func initNacos() {
+	sc := []constant.ServerConfig{
+		*constant.NewServerConfig("192.168.0.124", 8848),
+	}
+	cc := constant.ClientConfig{
+		AppName: "gateway",
+		//NamespaceId:         "e56f939e-6d22-449c-97d2-39a8ae5afd58", //namespace id
+		NamespaceId:         "",
+		TimeoutMs:           5000,
+		NotLoadCacheAtStart: true,
+		RotateTime:          "1h",
+		MaxAge:              3,
+		LogLevel:            "debug",
+	}
+	configParam := vo.NacosClientParam{
+		ClientConfig:  &cc,
+		ServerConfigs: sc,
+	}
+
+	client, err := clients.NewNamingClient(configParam)
+
+	if err != nil {
+		panic(err)
+	}
+	ip := "gateway"
+	if ips := utils.GetIps(); ips != nil {
+		ip = ips[0]
+	}
+	success, _ := client.RegisterInstance(vo.RegisterInstanceParam{
+		Ip:          ip,
+		Port:        8889,
+		Weight:      10,
+		Enable:      true,
+		Healthy:     true,
+		ServiceName: "gateway",
+		Ephemeral:   true,
+	})
+	log.Println("Nacos注册结果: ", success)
+	if !success {
+		log.Fatal("服务注册失败，退出程序")
+	}
+
+	configClient, err := clients.NewConfigClient(configParam)
+	if err != nil {
+		log.Fatalf("创建配置连接失败: %v", err.Error())
+	}
+	_ = configClient.ListenConfig(vo.ConfigParam{
+		DataId:   "gateway.yml",
+		Group:    "DEFAULT_GROUP",
+		OnChange: configChanged,
+	})
+
+	// 读取初始配置
+	core.NacosClient = core.NewNacosClient(client, configClient)
+	configStr, err := configClient.GetConfig(vo.ConfigParam{DataId: "gateway.yml", Group: "DEFAULT_GROUP"})
+	if err != nil {
+		log.Panicf("读取配置文件错误: %v", err.Error())
+	}
+	core.ConfigChanged(configStr)
+}
+
+func configChanged(namespace, group, dataId, data string) {
+	core.ConfigChanged(data)
+}

main.go

@@ -1,47 +1,39 @@
 package main
 
 import (
-	"fmt"
+	"gateway/core"
+	"gateway/initialization"
+	"gateway/middleware"
 	"github.com/gin-gonic/gin"
-	"net"
-	"net/http"
 )
 
-func getIps() []string {
-	addrs, err := net.InterfaceAddrs()
-	if err != nil {
-		return nil
-	}
-	var ips []string
-	for _, address := range addrs {
-		// 检查ip地址判断是否回环地址
-		if ipnet, ok := address.(*net.IPNet); ok && !ipnet.IP.IsLoopback() {
-			if ipnet.IP.To4() != nil {
-				ip := ipnet.IP.String()
-				fmt.Println(ip)
-				ips = append(ips, ip)
-			}
-		}
-	}
-	//ipStr := strings.Join(aaaa, ",")
-	return ips
-}
-
 func main() {
+	// 初始化系统
+	initialization.InitSystem()
+	// 创建默认Web服务
 	app := gin.Default()
-	initNacos()
 
-	app.GET("/hello", func(context *gin.Context) {
+	app.Use(middleware.GenRequestId(), middleware.OpenTracing())
-		context.String(http.StatusOK, get("get", context.Request.RequestURI))
-	})
 
-	app.POST("/hello", func(context *gin.Context) {
+	app.Any("/*action", core.NacosClient.Remote)
-		context.String(http.StatusOK, post(context.Request.RequestURI))
-	})
 
-	app.GET("/ip", func(context *gin.Context) {
+	//app.GET("/hello", func(context *gin.Context) {
-		context.String(http.StatusOK, get("get", context.Request.RequestURI))
+	//	dd := context.GetString("UberTraceId")
-	})
+	//	//log.Println("数据是否存在: ", boo)
+	//	//if boo {
+	//	//	log.Println(dd)
+	//	//}
+	//	context.String(http.StatusOK, get("get", context.Request.RequestURI, context.GetString("X-Request-Id"), dd))
+	//})
+	//
+	//app.POST("/hello", func(context *gin.Context) {
+	//	context.String(http.StatusOK, post(context.Request.RequestURI))
+	//})
+	//
+	//app.GET("/ip", func(context *gin.Context) {
+	//	dd := context.GetString("UberTraceId")
+	//	context.String(http.StatusOK, get("get", context.Request.RequestURI, context.GetString("X-Request-Id"), dd))
+	//})
 
-	app.Run(":8889")
+	_ = app.Run(":8889")
 }

middleware/jaeger.go

@@ -0,0 +1,78 @@
+package middleware
+
+import (
+	"fmt"
+	"github.com/gin-gonic/gin"
+	"github.com/opentracing/opentracing-go"
+	"github.com/opentracing/opentracing-go/ext"
+	"github.com/uber/jaeger-client-go/config"
+	"io"
+)
+
+const (
+	AppName        = "gateway"
+	JaegerHostPort = "192.168.0.124:6831"
+)
+
+func OpenTracing() gin.HandlerFunc {
+	return func(c *gin.Context) {
+		var parentSpan opentracing.Span
+
+		tracer, closer := NewJaegerTracer(AppName)
+		defer closer.Close()
+
+		spCtx, err := opentracing.GlobalTracer().Extract(opentracing.HTTPHeaders, opentracing.HTTPHeadersCarrier(c.Request.Header))
+
+		if err != nil {
+			parentSpan = tracer.StartSpan(c.Request.URL.Path)
+			defer parentSpan.Finish()
+		} else {
+			parentSpan = opentracing.StartSpan(
+				c.Request.URL.Path,
+				opentracing.ChildOf(spCtx),
+				opentracing.Tag{Key: string(ext.Component), Value: "HTTP"},
+				ext.SpanKindRPCServer,
+			)
+			defer parentSpan.Finish()
+		}
+
+		c.Set("Tracer", tracer)
+		asd := fmt.Sprintf("%v", parentSpan.Context())
+		c.Set("UberTraceId", asd)
+		c.Set("ParentSpanContext", parentSpan.Context())
+
+		c.Next()
+
+		ext.HTTPStatusCode.Set(parentSpan, uint16(c.Writer.Status()))
+
+		if c.Writer.Status() > 299 {
+			ext.Error.Set(parentSpan, true)
+		}
+	}
+}
+
+//var Tracer opentracing.Tracer
+
+func NewJaegerTracer(serviceName string) (opentracing.Tracer, io.Closer) {
+	cfg := &config.Configuration{
+		Sampler: &config.SamplerConfig{
+			Type:  "const", //固定采样
+			Param: 1,       //1=全采样、0=不采样
+		},
+
+		Reporter: &config.ReporterConfig{
+			LogSpans:           true,
+			LocalAgentHostPort: JaegerHostPort,
+		},
+
+		ServiceName: serviceName,
+	}
+
+	tracer, closer, err := cfg.NewTracer()
+	if err != nil {
+		return nil, nil
+	}
+	opentracing.SetGlobalTracer(tracer)
+	//Tracer = tracer
+	return tracer, closer
+}

middleware/request.go

@@ -0,0 +1,24 @@
+package middleware
+
+import (
+	"github.com/gin-gonic/gin"
+	"github.com/nacos-group/nacos-sdk-go/inner/uuid"
+	"log"
+)
+
+// GenRequestId 生成RequestId
+func GenRequestId() gin.HandlerFunc {
+	return func(c *gin.Context) {
+		requestId := c.Request.Header.Get("X-Request-Id")
+		if requestId == "" {
+			u, err := uuid.NewV4()
+			if err != nil {
+				log.Printf("生成UUID错误: %v\n", err.Error())
+			} else {
+				requestId = u.String()
+			}
+		}
+		c.Set("X-Request-Id", requestId)
+		c.Writer.Header().Set("X-Request-Id", requestId)
+	}
+}

utils/ip_utils.go

@@ -0,0 +1,27 @@
+package utils
+
+import (
+	"fmt"
+	"net"
+)
+
+// GetIps 获取本机IP地址
+func GetIps() []string {
+	addrs, err := net.InterfaceAddrs()
+	if err != nil {
+		return nil
+	}
+	var ips []string
+	for _, address := range addrs {
+		// 检查ip地址判断是否回环地址
+		if ipnet, ok := address.(*net.IPNet); ok && !ipnet.IP.IsLoopback() {
+			if ipnet.IP.To4() != nil {
+				ip := ipnet.IP.String()
+				fmt.Println(ip)
+				ips = append(ips, ip)
+			}
+		}
+	}
+	//ipStr := strings.Join(aaaa, ",")
+	return ips
+}