flipped-aurora/gin-vue-admin · error
用户不存在
Error message
用户不存在
What it means
FindUserByUuid looks up a SysUser by its uuid column; when First(&u) returns an error (typically gorm.ErrRecordNotFound), it discards the cause and returns errors.New("用户不存在") along with an empty user. It converts any DB-level failure into the domain message 'user does not exist'.
Source
Thrown at server/service/system/sys_user.go:403
//@param: id int
//@return: err error, user *model.SysUser
func (userService *UserService) FindUserById(ctx context.Context, id int) (user *system.SysUser, err error) {
var u system.SysUser
err = global.GVA_DB.WithContext(ctx).Where("id = ?", id).First(&u).Error
return &u, err
}
//@author: [SliverHorn](https://github.com/SliverHorn)
//@function: FindUserByUuid
//@description: 通过uuid获取用户信息
//@param: uuid string
//@return: err error, user *model.SysUser
func (userService *UserService) FindUserByUuid(ctx context.Context, uuid string) (user *system.SysUser, err error) {
var u system.SysUser
if err = global.GVA_DB.WithContext(ctx).Where("uuid = ?", uuid).First(&u).Error; err != nil {
return &u, errors.New("用户不存在")
}
return &u, nil
}
//@author: [piexlmax](https://github.com/piexlmax)
//@function: ResetPassword
//@description: 修改用户密码
//@param: ID uint
//@return: err error
func (userService *UserService) ResetPassword(ctx context.Context, ID uint, password string) (err error) {
now := time.Now()
err = global.GVA_DB.WithContext(ctx).Model(&system.SysUser{}).Where("id = ?", ID).Updates(map[string]interface{}{
"password": utils.BcryptHash(password),
"password_updated_at": now,
}).Error
return err
}View on GitHub (pinned to 3136500ef3)
Solutions
- Re-login to obtain a fresh token with a valid uuid if the user was deleted/recreated.
- Verify the uuid string passed matches the sys_user.uuid column value exactly.
- Check the DB for the uuid: SELECT * FROM sys_user WHERE uuid = ? to confirm existence.
- If this follows a DB restore/reset, re-issue tokens for all users.
Example fix
// before user, err := userService.FindUserByUuid(ctx, oldTokenUuid) // user recreated, uuid changed // after claims := utils.GetClaims(c) // read uuid from current valid token user, err := userService.FindUserByUuid(ctx, claims.UUID)
Defensive patterns
Strategy: try-catch
Validate before calling
if (!uuid || uuid.length < 16) { throw new Error('无效的用户标识') } Try / catch
user, err := userService.FindUserByUuid(ctx, uuid)
if err != nil {
// treat as unauthenticated; force re-login
response.FailWithMessage("登录状态失效，请重新登录", c)
return
} Prevention
- Force re-login when a token's uuid no longer resolves to a user.
- Invalidate tokens on user deletion/recreation.
- Log the underlying DB error to distinguish not-found from connection issues.
When it happens
Trigger: Calling FindUserByUuid (sys_user.go:403) with a uuid that has no row in sys_user — expired/garbage token uuids, users deleted after a token was issued, or a malformed uuid string.
Common situations: JWT contains a uuid for a user deleted or re-created (new uuid) since issuance; stale cached user records in the front end; tokens issued before a database reset.
Related errors
AI-assisted analysis of flipped-aurora/gin-vue-admin@3136500ef3 (2026-08-31).
Data as JSON: /api/errors/d59021c4c246d275.
Report an issue: GitHub.