refactor: 按go modules规范重构

backend/internal/repository/neo4j/client.go

@@ -0,0 +1,26 @@
+package neo4j
+
+import (
+	"context"
+
+	"github.com/neo4j/neo4j-go-driver/v5/neo4j"
+
+	"knowledge-graph-backend/internal/config"
+)
+
+func NewDriver(cfg config.Neo4jConfig) neo4j.DriverWithContext {
+	ctx := context.Background()
+	driver, err := neo4j.NewDriverWithContext(
+		cfg.URI,
+		neo4j.BasicAuth(cfg.Username, cfg.Password, ""))
+	if err != nil {
+		panic(err)
+	}
+
+	err = driver.VerifyConnectivity(ctx)
+	if err != nil {
+		panic(err)
+	}
+
+	return driver
+}

backend/internal/repository/neo4j/client_test.go

@@ -0,0 +1,22 @@
+package neo4j
+
+import (
+	"context"
+	"testing"
+
+	"knowledge-graph-backend/internal/config"
+)
+
+func TestNewDriver(t *testing.T) {
+	cnf, err := config.Load()
+	if err != nil {
+		t.Errorf("[cnf]: %v", err)
+	}
+	cfg := config.Neo4jConfig{
+		URI:      cnf.Neo4j.URI,
+		Username: cnf.Neo4j.Username,
+		Password: cnf.Neo4j.Password,
+	}
+	driver := NewDriver(cfg)
+	defer driver.Close(context.Background())
+}