# JWT Token验证流程时序图

## 1. 请求Token验证时序图

```mermaid
sequenceDiagram
    participant 客户端 as 客户端
    participant JwtFilter as JwtAuthenticationTokenFilter
    participant TokenService as TokenService
    participant RedisCache as RedisCache
    participant SecurityContextHolder as SecurityContextHolder

    客户端->>JwtFilter: 发送带Token的请求
    JwtFilter->>TokenService: 获取登录用户(getLoginUser)
    TokenService->>JwtFilter: 从请求头提取Token(getToken)
    JwtFilter->>TokenService: 解析Token(parseToken)
    TokenService-->>JwtFilter: 返回Claims数据
    JwtFilter->>TokenService: 获取缓存用户(getCacheObject)
    TokenService->>RedisCache: 查询缓存
    RedisCache-->>TokenService: 返回LoginUser
    TokenService-->>JwtFilter: 返回LoginUser
    JwtFilter->>TokenService: 验证Token有效性(verifyToken)
    TokenService->>TokenService: 检查是否需要刷新
    TokenService->>TokenService: 刷新Token(refreshToken)
    TokenService->>RedisCache: 更新缓存过期时间
    JwtFilter->>SecurityContextHolder: 设置认证信息
    SecurityContextHolder-->>JwtFilter: 设置完成
    JwtFilter->>客户端: 请求继续处理
```

## 2. Token创建与销毁时序图

```mermaid
sequenceDiagram
    participant SysLoginService as SysLoginService
    participant TokenService as TokenService
    participant RedisCache as RedisCache
    participant LogoutHandler as LogoutSuccessHandlerImpl

    SysLoginService->>TokenService: 创建Token(createToken)
    TokenService->>TokenService: 生成UUID
    TokenService->>TokenService: 设置用户代理信息(setUserAgent)
    TokenService->>TokenService: 刷新Token(refreshToken)
    TokenService->>RedisCache: 缓存LoginUser对象
    TokenService-->>SysLoginService: 返回Token字符串
    LogoutHandler->>TokenService: 删除登录用户(delLoginUser)
    TokenService->>TokenService: 构造缓存键(getTokenKey)
    TokenService->>RedisCache: 删除缓存对象
    RedisCache-->>TokenService: 删除结果
    TokenService-->>LogoutHandler: 删除完成
```