Feat: 实现知识图谱数据库的检索方法，并对外提供接口

backend/main.go

@@ -1,6 +1,7 @@
 package main
 
 import (
+	"context"
 	"log"
 	"net/http"
 
@@ -9,6 +10,7 @@ import (
 
 	"knowledge-graph-backend/config"
 	"knowledge-graph-backend/handlers"
+	neo4jClient "knowledge-graph-backend/neo4j"
 	"knowledge-graph-backend/services"
 )
 
@@ -18,14 +20,14 @@ func main() {
 		log.Fatalf("Failed to load config: %v", err)
 	}
 
-	dataService, err := services.NewDataService(cfg.Data.FilePath)
-	if err != nil {
-		log.Fatalf("Failed to initialize data service: %v", err)
-	}
+	driver := neo4jClient.NewDriver(cfg.Neo4j)
+	defer driver.Close(context.Background())
 
-	graphHandler := handlers.NewGraphHandler(dataService)
-	searchHandler := handlers.NewSearchHandler(dataService)
-	nodeHandler := handlers.NewNodeHandler(dataService)
+	graphService := services.NewNeo4jService(driver)
+
+	graphHandler := handlers.NewGraphHandler(graphService)
+	searchHandler := handlers.NewSearchHandler(graphService)
+	nodeHandler := handlers.NewNodeHandler(graphService)
 
 	router := gin.Default()