refactor: 使用IP端口哈希生成雪花算法节点ID

This commit is contained in:
2026-04-10 15:42:48 +08:00
parent 45e6bf653f
commit 0c80c5fd8b
2 changed files with 85 additions and 4 deletions

View File

@@ -5,6 +5,7 @@ import (
"database/sql"
"encoding/json"
"fmt"
"hash/fnv"
"regexp"
"strings"
"time"
@@ -157,16 +158,38 @@ func catchSQLHook() gdb.HookHandler {
}
}
func getNodeIdFromIPPort(ctx context.Context) int64 {
// 获取本地IP
ip, err := utils.GetLocalIP()
if err != nil {
return 0
}
// 获取端口
port := g.Cfg().MustGet(ctx, "server.address").String()
// 拼接字符串
addr := fmt.Sprintf("%s%s", ip, port)
// 计算哈希(保证唯一且稳定)
h := fnv.New64a()
h.Write([]byte(addr))
hashVal := h.Sum64()
// 取模 1024 → 得到 0~1023 的合法 node
return int64(hashVal % 1024)
}
// ==================== Insert钩子 ====================
func insertHook(ctx context.Context, in *gdb.HookInsertInput) (result sql.Result, err error) {
userInfo, err := utils.GetUserInfo(ctx)
if err != nil {
return nil, err
}
node, err := snowflake.NewNode(g.Cfg().MustGet(ctx, "server.workerId").Int64())
nodeId := getNodeIdFromIPPort(ctx)
if nodeId == 0 {
return nil, fmt.Errorf("nodeId cannot be empty")
}
node, err := snowflake.NewNode(nodeId)
if err != nil {
return nil, err
}
@@ -414,7 +437,6 @@ var (
type Gfdb interface {
Exec(ctx context.Context, sql string, args ...any) (sql.Result, error)
GetAll(ctx context.Context, sql string, args ...any) (gdb.Result, error)
Model(ctx context.Context, tableNameOrStruct ...any) *model
Transaction(ctx context.Context, f func(ctx context.Context, tx gdb.TX) error) error
}