feat: 实现客户端实例上报功能

- 新增 ClientInstance 模型，记录客户端 IP 与配置项的关联
- 配置拉取接口（fetchAll/fetchChanged）自动记录客户端信息
- 配置列表页面展示每个配置的在线客户端数量
- 点击可查看具体 IP 地址、拉取方式、最后拉取时间
- 超过 5 分钟未拉取的记录自动清理
- 注释掉 /api/ping 接口

server/cmd/main.go

@@ -42,6 +42,7 @@ func main() {
 	userHandler := handler.NewUserHandler(permService)
 	groupHandler := handler.NewGroupHandler()
 	profileHandler := handler.NewProfileHandler()
+	clientHandler := handler.NewClientHandler()
 
 	// init gin
 	r := gin.Default()
@@ -101,6 +102,9 @@ func main() {
 		admin.POST("/profile/delete/:id", profileHandler.Delete)
 		admin.POST("/profile/switch/:id", profileHandler.Switch)
 		admin.GET("/profile/options", profileHandler.Options)
+
+		// client instance management
+		admin.GET("/client/listByConfig", clientHandler.ListByConfigId)
 	}
 
 	// user info routes (JWT auth required)
@@ -116,7 +120,7 @@ func main() {
 	{
 		api.POST("/fetchAllConfigs", configApiHandler.FetchAllConfigs)
 		api.POST("/fetchChangedConfigs", configApiHandler.FetchChangedConfigs)
-		api.GET("/ping", configApiHandler.Ping)
+		// api.GET("/ping", configApiHandler.Ping)
 	}
 
 	// start server

server/internal/dao/engine.go

@@ -33,6 +33,7 @@ func Init() error {
 		new(model.AppConfigHistory),
 		new(model.User),
 		new(model.UserPermission),
+		new(model.ClientInstance),
 	); err != nil {
 		return err
 	}

server/internal/handler/client.go

@@ -0,0 +1,29 @@
+package handler
+
+import (
+	"kenaito-conf/server/internal/dao"
+	"kenaito-conf/server/internal/model"
+	"net/http"
+	"strconv"
+
+	"github.com/gin-gonic/gin"
+)
+
+type ClientHandler struct{}
+
+func NewClientHandler() *ClientHandler {
+	return &ClientHandler{}
+}
+
+func (h *ClientHandler) ListByConfigId(c *gin.Context) {
+	configId, _ := strconv.Atoi(c.Query("configId"))
+	if configId == 0 {
+		c.JSON(http.StatusBadRequest, model.WrapperResponse{Code: 400, Msg: "参数错误"})
+		return
+	}
+
+	var instances []model.ClientInstance
+	dao.Engine.Where("app_config_id = ?", configId).OrderBy("last_fetch_at DESC").Find(&instances)
+
+	c.JSON(http.StatusOK, model.WrapperResponse{Code: 0, Data: instances})
+}

server/internal/handler/config.go

@@ -80,9 +80,31 @@ func (h *ConfigHandler) List(c *gin.Context) {
 	total, _ := dao.Engine.Where(whereClause).Count(&model.AppConfig{})
 	dao.Engine.Where(whereClause).Limit(req.PageSize, (req.PageNo-1)*req.PageSize).Find(&configs)
 
-	// build app names
+	// build app names and client counts
+	configIds := make([]int, 0, len(configs))
 	for i := range configs {
 		configs[i].AppNames = h.buildAppNames(&configs[i])
+		configIds = append(configIds, configs[i].Id)
+	}
+	// batch query client counts
+	if len(configIds) > 0 {
+		type countResult struct {
+			AppConfigId int `xorm:"app_config_id"`
+			Cnt         int `xorm:"cnt"`
+		}
+		var results []countResult
+		dao.Engine.Table("client_instance").
+			Select("app_config_id, COUNT(DISTINCT ip) as cnt").
+			In("app_config_id", configIds).
+			GroupBy("app_config_id").
+			Find(&results)
+		countMap := make(map[int]int, len(results))
+		for _, r := range results {
+			countMap[r.AppConfigId] = r.Cnt
+		}
+		for i := range configs {
+			configs[i].ClientCount = countMap[configs[i].Id]
+		}
 	}
 
 	c.JSON(http.StatusOK, model.PageResult{PageNo: req.PageNo, PageSize: req.PageSize, Total: total, Data: configs})

server/internal/handler/config_api.go

@@ -70,6 +70,7 @@ func (h *ConfigApiHandler) FetchAllConfigs(c *gin.Context) {
 	}
 
 	result := make(map[string]interface{})
+	var configIds []int
 
 	// load global configs
 	if !req.IgnoreGlobal && app.GroupId != nil {
@@ -77,6 +78,7 @@ func (h *ConfigApiHandler) FetchAllConfigs(c *gin.Context) {
 		dao.Engine.Where("env = ? AND version = ? AND enabled = 1 AND group_id = ? AND (app_id is null OR app_id = 0)",
 			req.Env, version, *app.GroupId).Find(&globalConfigs)
 		for _, cfg := range globalConfigs {
+			configIds = append(configIds, cfg.Id)
 			kvMap := h.parseService.ParseConfigToKVMap(&cfg)
 			for k, v := range kvMap {
 				result[k] = v
@@ -90,6 +92,7 @@ func (h *ConfigApiHandler) FetchAllConfigs(c *gin.Context) {
 		dao.Engine.Where("env = ? AND version = ? AND enabled = 1 AND app_id = ?",
 			req.Env, version, *app.ParentId).Find(&parentConfigs)
 		for _, cfg := range parentConfigs {
+			configIds = append(configIds, cfg.Id)
 			kvMap := h.parseService.ParseConfigToKVMap(&cfg)
 			for k, v := range kvMap {
 				result[k] = v
@@ -102,6 +105,7 @@ func (h *ConfigApiHandler) FetchAllConfigs(c *gin.Context) {
 	dao.Engine.Where("env = ? AND version = ? AND enabled = 1 AND app_id = ?",
 		req.Env, version, app.Id).Find(&appConfigs)
 	for _, cfg := range appConfigs {
+		configIds = append(configIds, cfg.Id)
 		kvMap := h.parseService.ParseConfigToKVMap(&cfg)
 		for k, v := range kvMap {
 			result[k] = v
@@ -115,6 +119,9 @@ func (h *ConfigApiHandler) FetchAllConfigs(c *gin.Context) {
 
 	result["latest.fetch.timestamp"] = strconv.FormatInt(time.Now().UnixMilli(), 10)
 
+	// record client instances asynchronously
+	go h.recordClientInstances(c.ClientIP(), configIds, req.AppName, req.Env, "fetchAll")
+
 	c.JSON(http.StatusOK, result)
 }
 
@@ -156,6 +163,7 @@ func (h *ConfigApiHandler) FetchChangedConfigs(c *gin.Context) {
 	lastUpdateTime := time.UnixMilli(req.LastTime)
 
 	result := make(map[string]string)
+	var configIds []int
 
 	// load global changed configs
 	if !req.IgnoreGlobal && app.GroupId != nil {
@@ -163,6 +171,7 @@ func (h *ConfigApiHandler) FetchChangedConfigs(c *gin.Context) {
 		dao.Engine.Where("env = ? AND version = ? AND enabled = 1 AND group_id = ? AND (app_id is null OR app_id = 0) AND updated_at > ?",
 			req.Env, version, *app.GroupId, lastUpdateTime).Find(&globalConfigs)
 		for _, cfg := range globalConfigs {
+			configIds = append(configIds, cfg.Id)
 			h.addChangedConfigs(result, &cfg, req.FetchAll)
 		}
 	}
@@ -173,6 +182,7 @@ func (h *ConfigApiHandler) FetchChangedConfigs(c *gin.Context) {
 		dao.Engine.Where("env = ? AND version = ? AND enabled = 1 AND app_id = ? AND updated_at > ?",
 			req.Env, version, *app.ParentId, lastUpdateTime).Find(&parentConfigs)
 		for _, cfg := range parentConfigs {
+			configIds = append(configIds, cfg.Id)
 			h.addChangedConfigs(result, &cfg, req.FetchAll)
 		}
 	}
@@ -182,11 +192,15 @@ func (h *ConfigApiHandler) FetchChangedConfigs(c *gin.Context) {
 	dao.Engine.Where("env = ? AND version = ? AND enabled = 1 AND app_id = ? AND updated_at > ?",
 		req.Env, version, app.Id, lastUpdateTime).Find(&appConfigs)
 	for _, cfg := range appConfigs {
+		configIds = append(configIds, cfg.Id)
 		h.addChangedConfigs(result, &cfg, req.FetchAll)
 	}
 
 	result["latest.fetch.timestamp"] = strconv.FormatInt(time.Now().UnixMilli(), 10)
 
+	// record client instances asynchronously
+	go h.recordClientInstances(c.ClientIP(), configIds, req.AppName, req.Env, "fetchChanged")
+
 	c.JSON(http.StatusOK, model.WrapperResponse{Code: 0, Data: result})
 }
 
@@ -197,6 +211,38 @@ func (h *ConfigApiHandler) addChangedConfigs(result map[string]string, config *m
 	}
 }
 
-func (h *ConfigApiHandler) Ping(c *gin.Context) {
+func (h *ConfigApiHandler) recordClientInstances(ip string, configIds []int, appName, env, fetchType string) {
-	c.String(http.StatusOK, "200")
+	if len(configIds) == 0 || ip == "" {
+		return
+	}
+	now := time.Now()
+	for _, configId := range configIds {
+		var existing model.ClientInstance
+		has, _ := dao.Engine.Where("app_config_id = ? AND ip = ?", configId, ip).Get(&existing)
+		if has {
+			existing.LastFetchAt = &now
+			existing.LastFetchType = fetchType
+			existing.UpdatedAt = &now
+			dao.Engine.ID(existing.Id).Cols("last_fetch_at", "last_fetch_type", "updated_at").Update(&existing)
+		} else {
+			instance := model.ClientInstance{
+				AppConfigId:   configId,
+				AppName:       appName,
+				Env:           env,
+				IP:            ip,
+				LastFetchAt:   &now,
+				LastFetchType: fetchType,
+				CreatedAt:     &now,
+				UpdatedAt:     &now,
+			}
+			dao.Engine.Insert(&instance)
+		}
+	}
+	// cleanup records older than 5 minutes
+	fiveMinutesAgo := now.Add(-5 * time.Minute)
+	dao.Engine.Where("last_fetch_at < ?", fiveMinutesAgo).Delete(&model.ClientInstance{})
 }
+
+// func (h *ConfigApiHandler) Ping(c *gin.Context) {
+// 	c.String(http.StatusOK, "200")
+// }

server/internal/model/app_config.go

@@ -19,6 +19,7 @@ type AppConfig struct {
 	UpdatedBy string     `xorm:"varchar(32)" json:"updatedBy"`
 	Global    bool       `xorm:"-" json:"global"`
 	AppNames  string     `xorm:"-" json:"appNames,omitempty"`
+	ClientCount int      `xorm:"-" json:"clientCount,omitempty"`
 }
 
 type AppConfigHistory struct {

server/internal/model/client_instance.go

@@ -0,0 +1,15 @@
+package model
+
+import "time"
+
+type ClientInstance struct {
+	Id            int        `xorm:"int autoincr pk" json:"id"`
+	AppConfigId   int        `xorm:"int index" json:"appConfigId"`
+	AppName       string     `xorm:"varchar(64) index" json:"appName"`
+	Env           string     `xorm:"varchar(32)" json:"env"`
+	IP            string     `xorm:"varchar(64)" json:"ip"`
+	LastFetchAt   *time.Time `xorm:"datetime" json:"lastFetchAt"`
+	LastFetchType string     `xorm:"varchar(16)" json:"lastFetchType"`
+	CreatedAt     *time.Time `xorm:"datetime" json:"createdAt"`
+	UpdatedAt     *time.Time `xorm:"datetime" json:"updatedAt"`
+}

web/src/api/client.js

@@ -0,0 +1,9 @@
+import request from './request'
+
+export function getClientListByConfig(configId) {
+  return request({
+    url: '/admin/client/listByConfig',
+    method: 'get',
+    params: { configId }
+  })
+}

web/src/views/config/ConfigList.vue

@@ -25,6 +25,14 @@
         </template>
       </el-table-column>
       <el-table-column prop="version" label="版本" width="100"></el-table-column>
+      <el-table-column prop="clientCount" label="在线客户端" width="120">
+        <template slot-scope="scope">
+          <el-button v-if="scope.row.clientCount > 0" type="text" @click="showClients(scope.row)">
+            {{ scope.row.clientCount }} 个
+          </el-button>
+          <span v-else style="color: #909399">无</span>
+        </template>
+      </el-table-column>
       <el-table-column label="操作" width="200">
         <template slot-scope="scope">
           <el-button type="text" @click="showHistory(scope.row)">变更历史</el-button>
@@ -92,11 +100,29 @@
         </div>
       </div>
     </el-dialog>
+
+    <el-dialog title="在线客户端" :visible.sync="clientVisible" width="700px">
+      <el-table :data="clientList" border stripe>
+        <el-table-column prop="ip" label="IP 地址" width="160"></el-table-column>
+        <el-table-column prop="lastFetchType" label="拉取方式" width="120">
+          <template slot-scope="scope">
+            <span v-if="scope.row.lastFetchType === 'fetchAll'">全量拉取</span>
+            <span v-else>增量拉取</span>
+          </template>
+        </el-table-column>
+        <el-table-column label="最后拉取时间">
+          <template slot-scope="scope">
+            {{ formatTime(scope.row.lastFetchAt) }}
+          </template>
+        </el-table-column>
+      </el-table>
+    </el-dialog>
   </el-card>
 </template>
 
 <script>
 import { getConfigList, deleteConfig, getConfigHistory, rollbackConfig, getConfig } from '../../api/config'
+import { getClientListByConfig } from '../../api/client'
 import request from '../../api/request'
 
 function computeDiff(oldText, newText) {
@@ -204,7 +230,9 @@ export default {
       contentVisible: false,
       currentHistory: {},
       leftLines: [],
-      rightLines: []
+      rightLines: [],
+      clientVisible: false,
+      clientList: []
     }
   },
   created() {
@@ -305,6 +333,13 @@ export default {
         this.historyVisible = false
         this.loadData()
       } catch (e) {}
+    },
+    async showClients(row) {
+      try {
+        const res = await getClientListByConfig(row.id)
+        this.clientList = res.data || []
+        this.clientVisible = true
+      } catch (e) {}
     }
   }
 }