diff --git a/backend/internal/db/database.go b/backend/internal/db/database.go
index 9862850..83ff3cc 100644
--- a/backend/internal/db/database.go
+++ b/backend/internal/db/database.go
@@ -2,6 +2,7 @@ package db
 
 import (
 	"ai-gateway/internal/models"
+	"log"
 	"os"
 
 	"gorm.io/driver/sqlite"
@@ -34,9 +35,36 @@ func InitDB() (*gorm.DB, error) {
 		return nil, err
 	}
 
+	// 初始化默认数据
+	if err := initializeDefaultData(db); err != nil {
+		log.Printf("Warning: Failed to initialize default data: %v", err)
+	}
+
 	return db, nil
 }
 
+// initializeDefaultData 初始化默认数据（如默认API密钥）
+func initializeDefaultData(db *gorm.DB) error {
+	// 检查是否已存在API密钥
+	var count int64
+	if err := db.Model(&models.APIKey{}).Count(&count).Error; err != nil {
+		return err
+	}
+
+	// 如果没有API密钥，创建默认密钥
+	if count == 0 {
+		defaultKey := &models.APIKey{
+			Key: "sk-dev-key-789012", // 与前端配置保持一致
+		}
+		if err := db.Create(defaultKey).Error; err != nil {
+			return err
+		}
+		log.Println("✓ Created default API key: sk-dev-key-789012")
+	}
+
+	return nil
+}
+
 // GetProviders 从数据库中获取所有服务商列表
 func GetProviders(db *gorm.DB) ([]models.Provider, error) {
 	var providers []models.Provider
diff --git a/docker-compose.cn.yml b/docker-compose.cn.yml
index 06407d4..f7af0b6 100644
--- a/docker-compose.cn.yml
+++ b/docker-compose.cn.yml
@@ -21,7 +21,7 @@ services:
     networks:
       - ai-router-network
     healthcheck:
-      test: ["CMD", "wget", "--no-verbose", "--tries=1", "-O", "/dev/null", "http://localhost:8080/health"]
+      test: ["CMD", "wget", "--no-verbose", "--tries=1", "-O", "/dev/null", "http://backend:8080/health"]
       interval: 30s
       timeout: 10s
       retries: 3
@@ -42,7 +42,7 @@ services:
     networks:
       - ai-router-network
     healthcheck:
-      test: ["CMD", "wget", "--no-verbose", "--tries=1", "--spider", "http://localhost:80/health"]
+      test: ["CMD", "wget", "--no-verbose", "--tries=1", "--spider", "http://frontend:80/health"]
       interval: 30s
       timeout: 10s
       retries: 3
diff --git a/docker-compose.yml b/docker-compose.yml
index e242e02..febbde0 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -17,7 +17,7 @@ services:
     networks:
       - ai-router-network
     healthcheck:
-      test: ["CMD", "wget", "--no-verbose", "--tries=1", "-O", "/dev/null", "http://localhost:8080/health"]
+      test: ["CMD", "wget", "--no-verbose", "--tries=1", "-O", "/dev/null", "http://backend:8080/health"]
       interval: 30s
       timeout: 10s
       retries: 3
@@ -38,7 +38,7 @@ services:
     networks:
       - ai-router-network
     healthcheck:
-      test: ["CMD", "wget", "--no-verbose", "--tries=1", "--spider", "http://localhost:80/health"]
+      test: ["CMD", "wget", "--no-verbose", "--tries=1", "--spider", "http://frontend:80/health"]
       interval: 30s
       timeout: 10s
       retries: 3