修改完善nacos熔断机制

utils/nacos/service.go

@@ -10,8 +10,9 @@ import (
 )
 
 var (
-	cli       naming_client.INamingClient
+	cli            naming_client.INamingClient
-	groupName string
+	groupName      string
+	ServerUriCache = make(map[string]model.Instance)
 )
 
 // NewNacosRegistry 创建一个nacos注册中心
@@ -85,16 +86,18 @@ func DiscoverServiceList(serviceName string) ([]model.Instance, error) {
 
 // DiscoverService 发现一个服务
 func DiscoverService(serviceName string) (model.Instance, error) {
+	ServiceCache := ServerUriCache[serviceName]
 	client, err := NewNacosRegistry()
 	if err != nil {
-		return model.Instance{}, err
+		return ServiceCache, err
 	}
 	instances, err := (*client).SelectOneHealthyInstance(vo.SelectOneHealthInstanceParam{
 		ServiceName: serviceName,
 		GroupName:   groupName,
 	})
 	if err != nil {
-		return model.Instance{}, err
+		return ServiceCache, err
 	}
+	ServerUriCache[serviceName] = *instances
 	return *instances, nil
 }

utils/request/response.go

@@ -0,0 +1,64 @@
+package request
+
+import (
+	"github.com/cloudwego/hertz/pkg/app"
+	"net/http"
+)
+
+// Response 通用响应结构
+type Response struct {
+	Code    int         `json:"code"`
+	Message string      `json:"message"`
+	Data    interface{} `json:"data,omitempty"`
+}
+
+// 常见的响应代码
+const (
+	SuccessCode      = 200
+	ErrorCode        = 500
+	BadRequestCode   = 400
+	NotFoundCode     = 404
+	UnauthorizedCode = 401
+)
+
+// Success 生成成功响应
+func Success(c *app.RequestContext, data interface{}) {
+	c.JSON(http.StatusOK, Response{
+		Code:    SuccessCode,
+		Message: "Success",
+		Data:    data,
+	})
+}
+
+// Error 生成错误响应
+func Error(c *app.RequestContext, code int, message string) {
+	c.JSON(code, Response{
+		Code:    code,
+		Message: message,
+	})
+}
+
+// BadRequest 生成400响应
+func BadRequest(c *app.RequestContext, message string) {
+	Error(c, BadRequestCode, message)
+}
+
+// NotFound 生成404响应
+func NotFound(c *app.RequestContext, message string) {
+	Error(c, NotFoundCode, message)
+}
+
+// Unauthorized 生成401响应
+func Unauthorized(c *app.RequestContext, message string) {
+	Error(c, UnauthorizedCode, message)
+}
+
+// FileResponse 生成文件响应
+func FileResponse(c *app.RequestContext, filePath, fileName string) {
+	// 设置响应头，告诉浏览器这是一个下载文件的请求
+	c.Response.Header.Set("Content-Disposition", "attachment; filename="+fileName)
+	c.Response.Header.Set("Content-Type", "application/octet-stream")
+
+	// 使用 File() 直接发送文件
+	c.File(filePath)
+}

utils/server_cli/serverCli.go

@@ -16,7 +16,10 @@ import (
 func getApiServer() string {
 	service, err := nacos.DiscoverService("apiServer")
 	if err != nil {
-		loger.Error("getApiServer error", err)
+		loger.Error("获取服务器地址失败", err)
+		if service.Ip != "" {
+			return service.Ip + ":" + strconv.Itoa(int(service.Port))
+		}
 		return ""
 	}
 	return service.Ip + ":" + strconv.Itoa(int(service.Port))