src/main/kotlin/top/fatweb/api/annotation/ApiVersion.kt

@@ -0,0 +1,14 @@
+package top.fatweb.api.annotation
+
+import org.springframework.core.annotation.AliasFor
+
+
+@Target(AnnotationTarget.CLASS)
+@Retention(AnnotationRetention.RUNTIME)
+annotation class ApiVersion(
+    @get:AliasFor("version")
+    val value: Int = 1,
+
+    @get:AliasFor("value")
+    val version: Int = 1
+)

src/main/kotlin/top/fatweb/api/config/SecurityConfig.kt

@@ -0,0 +1,92 @@
+package top.fatweb.api.config
+
+import org.springframework.context.annotation.Bean
+import org.springframework.context.annotation.Configuration
+import org.springframework.security.authentication.AuthenticationManager
+import org.springframework.security.config.annotation.authentication.configuration.AuthenticationConfiguration
+import org.springframework.security.config.annotation.method.configuration.EnableMethodSecurity
+import org.springframework.security.config.annotation.web.builders.HttpSecurity
+import org.springframework.security.config.annotation.web.configurers.*
+import org.springframework.security.config.http.SessionCreationPolicy
+import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder
+import org.springframework.security.web.SecurityFilterChain
+import org.springframework.security.web.authentication.UsernamePasswordAuthenticationFilter
+import org.springframework.web.cors.CorsConfiguration
+import org.springframework.web.cors.UrlBasedCorsConfigurationSource
+import top.fatweb.api.filter.JwtAuthenticationTokenFilter
+import top.fatweb.api.handler.JwtAccessDeniedHandler
+import top.fatweb.api.handler.JwtAuthenticationEntryPointHandler
+
+@Configuration
+@EnableMethodSecurity
+class SecurityConfig(
+    val jwtAuthenticationTokenFilter: JwtAuthenticationTokenFilter,
+    val authenticationEntryPointHandler: JwtAuthenticationEntryPointHandler,
+    val accessDeniedHandler: JwtAccessDeniedHandler
+) {
+    @Bean
+    fun passwordEncoder() = BCryptPasswordEncoder()
+
+    @Bean
+    fun authenticationManager(authenticationConfiguration: AuthenticationConfiguration): AuthenticationManager =
+        authenticationConfiguration.authenticationManager
+
+    @Bean
+    fun corsConfigurationSource(): UrlBasedCorsConfigurationSource {
+        val corsConfiguration = CorsConfiguration()
+        corsConfiguration.allowedMethods = listOf("*")
+        corsConfiguration.allowedHeaders = listOf("*")
+        corsConfiguration.maxAge = 3600L
+        corsConfiguration.allowedOrigins = listOf("*")
+        val source = UrlBasedCorsConfigurationSource()
+        source.registerCorsConfiguration("/**", corsConfiguration)
+
+        return source
+    }
+
+    @Bean
+    fun securityFilterChain(httpSecurity: HttpSecurity): SecurityFilterChain = httpSecurity
+        //  Disable CSRF
+        .csrf { csrfConfigurer: CsrfConfigurer<HttpSecurity> -> csrfConfigurer.disable() }
+        // Do not get SecurityContent by Session
+        .sessionManagement { sessionManagementConfigurer: SessionManagementConfigurer<HttpSecurity?> ->
+            sessionManagementConfigurer.sessionCreationPolicy(
+                SessionCreationPolicy.STATELESS
+            )
+        }
+        .authorizeHttpRequests { authorizeHttpRequests: AuthorizeHttpRequestsConfigurer<HttpSecurity>.AuthorizationManagerRequestMatcherRegistry ->
+            authorizeHttpRequests
+                // Allow anonymous access
+                .requestMatchers(
+                    "/api/v*/login",
+                    "/error/thrown",
+                    "/doc.html",
+                    "/swagger-ui/**",
+                    "/webjars/**",
+                    "/v3/**",
+                    "/swagger-ui.html",
+                    "/favicon.ico"
+                ).anonymous()
+                // Authentication required
+                .anyRequest().authenticated()
+        }
+
+        .logout { logoutConfigurer: LogoutConfigurer<HttpSecurity> -> logoutConfigurer.disable() }
+
+        .exceptionHandling { exceptionHandlingConfigurer: ExceptionHandlingConfigurer<HttpSecurity?> ->
+            exceptionHandlingConfigurer.authenticationEntryPoint(
+                authenticationEntryPointHandler
+            )
+            exceptionHandlingConfigurer.accessDeniedHandler(
+                accessDeniedHandler
+            )
+        }
+
+        .cors { cors: CorsConfigurer<HttpSecurity?> ->
+            cors.configurationSource(
+                corsConfigurationSource()
+            )
+        }
+
+        .addFilterBefore(jwtAuthenticationTokenFilter, UsernamePasswordAuthenticationFilter::class.java).build()
+}

src/main/kotlin/top/fatweb/api/config/WebMvcRegistrationsConfig.kt

@@ -0,0 +1,11 @@
+package top.fatweb.api.config
+
+import org.springframework.boot.autoconfigure.web.servlet.WebMvcRegistrations
+import org.springframework.context.annotation.Configuration
+import org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping
+import top.fatweb.api.util.ApiResponseMappingHandlerMapping
+
+@Configuration
+class WebMvcRegistrationsConfig : WebMvcRegistrations {
+    override fun getRequestMappingHandlerMapping(): RequestMappingHandlerMapping = ApiResponseMappingHandlerMapping()
+}

src/main/kotlin/top/fatweb/api/controller/UserController.kt

@@ -0,0 +1,17 @@
+package top.fatweb.api.controller
+
+import org.springframework.web.bind.annotation.RequestMapping
+import org.springframework.web.bind.annotation.RestController
+
+/**
+ * <p>
+ * 用户 前端控制器
+ * </p>
+ *
+ * @author FatttSnake
+ * @since 2023-10-04
+ */
+@RestController
+@RequestMapping("/api/user")
+class UserController
+

src/main/kotlin/top/fatweb/api/controller/permission/AuthenticationController.kt

@@ -0,0 +1,21 @@
+package top.fatweb.api.controller.permission
+
+import io.swagger.v3.oas.annotations.Operation
+import io.swagger.v3.oas.annotations.tags.Tag
+import org.springframework.web.bind.annotation.*
+import top.fatweb.api.annotation.ApiVersion
+import top.fatweb.api.entity.common.ResponseCode
+import top.fatweb.api.entity.common.ResponseResult
+import top.fatweb.api.entity.permission.User
+import top.fatweb.api.service.permission.IAuthenticationService
+
+@Tag(name = "身份认证", description = "身份认证相关接口")
+@RestController
+@RequestMapping("/api/{apiVersion}")
+@ApiVersion(2)
+class AuthenticationController(val loginService: IAuthenticationService) {
+    @Operation(summary = "登录")
+    @PostMapping("/login")
+    fun login(@PathVariable apiVersion: String, @RequestBody user: User) =
+        ResponseResult.success(ResponseCode.SYSTEM_LOGIN_SUCCESS, "Login success", loginService.login(user))
+}

src/main/kotlin/top/fatweb/api/entity/permission/LoginUser.kt

@@ -0,0 +1,36 @@
+package top.fatweb.api.entity.permission
+
+import com.fasterxml.jackson.annotation.JsonIgnore
+import org.springframework.security.core.GrantedAuthority
+import org.springframework.security.core.userdetails.UserDetails
+
+class LoginUser() : UserDetails {
+    lateinit var user: User
+
+    @JsonIgnore
+    private var authorities: List<GrantedAuthority>? = null
+
+    constructor(user: User) : this() {
+        this.user = user
+    }
+
+    @JsonIgnore
+    override fun getAuthorities(): List<GrantedAuthority> {
+        authorities?.let { return it }
+        authorities = emptyList()
+
+        return authorities as List<GrantedAuthority>
+    }
+
+    override fun getPassword(): String? = user.password
+
+    override fun getUsername(): String? = user.username
+
+    override fun isAccountNonExpired(): Boolean = true
+
+    override fun isAccountNonLocked(): Boolean = true
+
+    override fun isCredentialsNonExpired(): Boolean = true
+
+    override fun isEnabled(): Boolean = user.enable == 1
+}

src/main/kotlin/top/fatweb/api/entity/permission/User.kt

@@ -0,0 +1,56 @@
+package top.fatweb.api.entity.permission
+
+import com.baomidou.mybatisplus.annotation.*
+import java.io.Serializable
+
+/**
+ * <p>
+ * 用户
+ * </p>
+ *
+ * @author FatttSnake
+ * @since 2023-10-04
+ */
+@TableName("t_user")
+class User : Serializable {
+
+    @TableId("id")
+    var id: Long? = null
+
+    /**
+     * 用户名
+     */
+    @TableField("username")
+    var username: String? = null
+
+    /**
+     * 密码
+     */
+    @TableField("password")
+    var password: String? = null
+
+    /**
+     * 启用
+     */
+    @TableField("enable")
+    var enable: Int? = null
+
+    @TableField("deleted")
+    @TableLogic
+    var deleted: Long? = null
+
+    @TableField("version")
+    @Version
+    var version: Int? = null
+
+    override fun toString(): String {
+        return "User{" +
+                "id=" + id +
+                ", username=" + username +
+                ", password=" + password +
+                ", enable=" + enable +
+                ", deleted=" + deleted +
+                ", version=" + version +
+                "}"
+    }
+}

src/main/kotlin/top/fatweb/api/exception/TokenHasExpiredException.kt

@@ -0,0 +1,3 @@
+package top.fatweb.api.exception
+
+class TokenHasExpiredException : RuntimeException("Token has expired")

src/main/kotlin/top/fatweb/api/filter/JwtAuthenticationTokenFilter.kt

@@ -3,24 +3,44 @@ package top.fatweb.api.filter
 import jakarta.servlet.FilterChain
 import jakarta.servlet.http.HttpServletRequest
 import jakarta.servlet.http.HttpServletResponse
+import org.springframework.security.authentication.UsernamePasswordAuthenticationToken
+import org.springframework.security.core.context.SecurityContextHolder
+import org.springframework.stereotype.Component
 import org.springframework.util.StringUtils
 import org.springframework.web.filter.OncePerRequestFilter
-import top.fatweb.api.constants.SecurityConstants
-import top.fatweb.api.utils.RedisUtil
+import top.fatweb.api.constant.SecurityConstants
+import top.fatweb.api.entity.permission.LoginUser
+import top.fatweb.api.exception.TokenHasExpiredException
+import top.fatweb.api.util.JwtUtil
+import top.fatweb.api.util.RedisUtil
+import java.util.concurrent.TimeUnit
 
+@Component
 class JwtAuthenticationTokenFilter(private val redisUtil: RedisUtil) : OncePerRequestFilter() {
     override fun doFilterInternal(
         request: HttpServletRequest,
         response: HttpServletResponse,
         filterChain: FilterChain
     ) {
-        val token = request.getHeader(SecurityConstants.headerString)
+        val tokenWithPrefix = request.getHeader(SecurityConstants.headerString)
 
-        if (!StringUtils.hasText(token) || "/error/thrown" == request.servletPath) {
+        if (!StringUtils.hasText(tokenWithPrefix) || "/error/thrown" == request.servletPath) {
             filterChain.doFilter(request, response)
             return
         }
 
+        val token = tokenWithPrefix.removePrefix(SecurityConstants.tokenPrefix)
+        JwtUtil.parseJwt(token)
 
+        val redisKey = "${SecurityConstants.jwtIssuer}_login:" + token.substring(0, 32)
+        val loginUser = redisUtil.getObject<LoginUser>(redisKey)
+        loginUser ?: let { throw TokenHasExpiredException() }
+
+        redisUtil.setExpire(redisKey, 20, TimeUnit.MINUTES)
+
+        val authenticationToken = UsernamePasswordAuthenticationToken(loginUser, null, loginUser.authorities)
+        SecurityContextHolder.getContext().authentication = authenticationToken
+
+        filterChain.doFilter(request, response)
     }
 }

src/main/kotlin/top/fatweb/api/handler/JwtAccessDeniedHandler.kt

@@ -0,0 +1,19 @@
+package top.fatweb.api.handler
+
+import jakarta.servlet.http.HttpServletRequest
+import jakarta.servlet.http.HttpServletResponse
+import org.springframework.security.access.AccessDeniedException
+import org.springframework.security.web.access.AccessDeniedHandler
+import org.springframework.stereotype.Component
+
+@Component
+class JwtAccessDeniedHandler : AccessDeniedHandler {
+    override fun handle(
+        request: HttpServletRequest?,
+        response: HttpServletResponse?,
+        accessDeniedException: AccessDeniedException?
+    ) {
+        request?.setAttribute("filter.error", accessDeniedException)
+        request?.getRequestDispatcher("/error/thrown")?.forward(request, response)
+    }
+}

src/main/kotlin/top/fatweb/api/handler/JwtAuthenticationEntryPointHandler.kt

@@ -0,0 +1,19 @@
+package top.fatweb.api.handler
+
+import jakarta.servlet.http.HttpServletRequest
+import jakarta.servlet.http.HttpServletResponse
+import org.springframework.security.core.AuthenticationException
+import org.springframework.security.web.AuthenticationEntryPoint
+import org.springframework.stereotype.Component
+
+@Component
+class JwtAuthenticationEntryPointHandler : AuthenticationEntryPoint {
+    override fun commence(
+        request: HttpServletRequest?,
+        response: HttpServletResponse?,
+        authException: AuthenticationException?
+    ) {
+        request?.setAttribute("filter.error", authException)
+        request?.getRequestDispatcher("/error/thrown")?.forward(request, response)
+    }
+}

src/main/kotlin/top/fatweb/api/mapper/UserMapper.kt

@@ -0,0 +1,16 @@
+package top.fatweb.api.mapper
+
+import com.baomidou.mybatisplus.core.mapper.BaseMapper
+import org.apache.ibatis.annotations.Mapper
+import top.fatweb.api.entity.permission.User
+
+/**
+ * <p>
+ * 用户 Mapper 接口
+ * </p>
+ *
+ * @author FatttSnake
+ * @since 2023-10-04
+ */
+@Mapper
+interface UserMapper : BaseMapper<User>

src/main/kotlin/top/fatweb/api/service/IUserService.kt

@@ -0,0 +1,14 @@
+package top.fatweb.api.service
+
+import com.baomidou.mybatisplus.extension.service.IService
+import top.fatweb.api.entity.permission.User
+
+/**
+ * <p>
+ * 用户 服务类
+ * </p>
+ *
+ * @author FatttSnake
+ * @since 2023-10-04
+ */
+interface IUserService : IService<User>

src/main/kotlin/top/fatweb/api/service/impl/UserServiceImpl.kt

@@ -0,0 +1,18 @@
+package top.fatweb.api.service.impl
+
+import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl
+import org.springframework.stereotype.Service
+import top.fatweb.api.entity.permission.User
+import top.fatweb.api.mapper.UserMapper
+import top.fatweb.api.service.IUserService
+
+/**
+ * <p>
+ * 用户 服务实现类
+ * </p>
+ *
+ * @author FatttSnake
+ * @since 2023-10-04
+ */
+@Service
+class UserServiceImpl : ServiceImpl<UserMapper, User>(), IUserService

src/main/kotlin/top/fatweb/api/service/permission/IAuthenticationService.kt

@@ -0,0 +1,11 @@
+package top.fatweb.api.service.permission
+
+import top.fatweb.api.entity.permission.User
+
+interface IAuthenticationService {
+    fun login(user: User): HashMap<String, String>
+
+    fun logout(token: String): Boolean
+
+    fun renewToken(token: String): HashMap<String, String>
+}

src/main/kotlin/top/fatweb/api/service/permission/impl/AuthenticationServiceImpl.kt

@@ -0,0 +1,61 @@
+package top.fatweb.api.service.permission.impl
+
+import org.springframework.security.authentication.AuthenticationManager
+import org.springframework.security.authentication.UsernamePasswordAuthenticationToken
+import org.springframework.stereotype.Service
+import top.fatweb.api.constant.SecurityConstants
+import top.fatweb.api.entity.permission.LoginUser
+import top.fatweb.api.entity.permission.User
+import top.fatweb.api.service.permission.IAuthenticationService
+import top.fatweb.api.util.JwtUtil
+import top.fatweb.api.util.RedisUtil
+import top.fatweb.api.util.WebUtil
+import java.util.concurrent.TimeUnit
+
+@Service
+class AuthenticationServiceImpl(
+    private val authenticationManager: AuthenticationManager,
+    private val redisUtil: RedisUtil
+) : IAuthenticationService {
+    override fun login(user: User): HashMap<String, String> {
+        val usernamePasswordAuthenticationToken = UsernamePasswordAuthenticationToken(user.username, user.password)
+        val authentication = authenticationManager.authenticate(usernamePasswordAuthenticationToken)
+        authentication ?: let {
+            throw RuntimeException("Login failed")
+        }
+
+        val loginUser = authentication.principal as LoginUser
+        loginUser.user.password = ""
+        val userId = loginUser.user.id.toString()
+        val jwt = JwtUtil.createJwt(userId)
+
+        jwt ?: let {
+            throw RuntimeException("Login failed")
+        }
+
+        val hashMap = hashMapOf("token" to jwt)
+        val redisKey = "${SecurityConstants.jwtIssuer}_login:" + jwt.substring(0, 32)
+        redisUtil.setObject(redisKey, loginUser, 20, TimeUnit.MINUTES)
+
+        return hashMap
+    }
+
+    override fun logout(token: String): Boolean =
+        redisUtil.delObject("${SecurityConstants.jwtIssuer}_login:" + token.substring(0, 32))
+
+    override fun renewToken(token: String): HashMap<String, String> {
+        val oldRedisKey = "${SecurityConstants.jwtIssuer}_login:" + token.substring(0, 32)
+        redisUtil.delObject(oldRedisKey)
+        val jwt = JwtUtil.createJwt(WebUtil.getLoginUserId().toString())
+
+        jwt ?: let {
+            throw RuntimeException("Login failed")
+        }
+
+        val hashMap = hashMapOf("token" to jwt)
+        val redisKey = "${SecurityConstants.jwtIssuer}_login:" + jwt.substring(0, 32)
+        redisUtil.setObject(redisKey, WebUtil.getLoginUser(), 20, TimeUnit.MINUTES)
+
+        return hashMap
+    }
+}

src/main/kotlin/top/fatweb/api/util/ApiResponseMappingHandlerMapping.kt

@@ -0,0 +1,31 @@
+package top.fatweb.api.util
+
+import org.springframework.web.bind.annotation.RequestMapping
+import org.springframework.web.servlet.mvc.condition.RequestCondition
+import org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping
+import top.fatweb.api.annotation.ApiVersion
+import java.lang.reflect.Method
+
+class ApiResponseMappingHandlerMapping : RequestMappingHandlerMapping() {
+    private val versionFlag = "{apiVersion}"
+
+    private fun createCondition(clazz: Class<*>): RequestCondition<ApiVersionCondition>? {
+        val classRequestMapping = clazz.getAnnotation(RequestMapping::class.java)
+        classRequestMapping ?: let { return null }
+        val mappingUrlBuilder = StringBuilder()
+        if (classRequestMapping.value.isNotEmpty()) {
+            mappingUrlBuilder.append(classRequestMapping.value[0])
+        }
+        val mappingUrl = mappingUrlBuilder.toString()
+        if (!mappingUrl.contains(versionFlag)) {
+            return null
+        }
+        val apiVersion = clazz.getAnnotation(ApiVersion::class.java)
+
+        return if (apiVersion == null) ApiVersionCondition(1) else ApiVersionCondition(apiVersion.version)
+    }
+
+    override fun getCustomMethodCondition(method: Method): RequestCondition<*>? = createCondition(method.javaClass)
+
+    override fun getCustomTypeCondition(handlerType: Class<*>): RequestCondition<*>? = createCondition(handlerType)
+}

src/main/kotlin/top/fatweb/api/util/ApiVersionCondition.kt

@@ -0,0 +1,26 @@
+package top.fatweb.api.util
+
+import jakarta.servlet.http.HttpServletRequest
+import org.springframework.web.servlet.mvc.condition.RequestCondition
+import java.util.regex.Pattern
+
+class ApiVersionCondition(private val apiVersion: Int) : RequestCondition<ApiVersionCondition> {
+    private val versionPrefixPattern: Pattern = Pattern.compile(".*v(\\d+).*")
+
+    override fun combine(other: ApiVersionCondition): ApiVersionCondition = ApiVersionCondition(other.apiVersion)
+
+    override fun getMatchingCondition(request: HttpServletRequest): ApiVersionCondition? {
+        val matcher = versionPrefixPattern.matcher(request.requestURI)
+        if (matcher.find()) {
+            val version = matcher.group(1).toInt()
+            if (version >= this.apiVersion) {
+                return this
+            }
+        }
+
+        return null
+    }
+
+    override fun compareTo(other: ApiVersionCondition, request: HttpServletRequest): Int =
+        other.apiVersion - this.apiVersion
+}

src/main/kotlin/top/fatweb/api/util/JwtUtil.kt

@@ -0,0 +1,67 @@
+package top.fatweb.api.util
+
+import com.auth0.jwt.JWT
+import com.auth0.jwt.algorithms.Algorithm
+import com.auth0.jwt.interfaces.DecodedJWT
+import top.fatweb.api.constant.SecurityConstants
+import java.util.*
+import java.util.concurrent.TimeUnit
+import javax.crypto.spec.SecretKeySpec
+
+object JwtUtil {
+    private fun getUUID() = UUID.randomUUID().toString().replace("-", "")
+
+    /**
+     * 生成加密后的秘钥 secretKey
+     *
+     * @return 密钥
+     */
+    private fun generalKey(): SecretKeySpec {
+        val encodeKey = Base64.getDecoder().decode(SecurityConstants.jwtKey)
+        return SecretKeySpec(encodeKey, 0, encodeKey.size, "AES")
+    }
+
+    private fun algorithm(): Algorithm = Algorithm.HMAC256(generalKey().toString())
+
+    /**
+     * 创建 token
+     *
+     * @param subject token 中存放的数据（json格式)
+     * @param ttl token 生存时间
+     * @param timeUnit ttl 时间单位
+     * @param uuid 唯一 ID
+     * @return jwt 串
+     */
+    fun createJwt(
+        subject: String,
+        ttl: Long = SecurityConstants.jwtTtl,
+        timeUnit: TimeUnit = SecurityConstants.jwtTtlUnit,
+        uuid: String = getUUID()
+    ): String? {
+        val nowMillis = System.currentTimeMillis()
+        val nowDate = Date(nowMillis)
+        val unitTtl = (ttl * when (timeUnit) {
+            TimeUnit.DAYS -> 24 * 60 * 60 * 1000
+            TimeUnit.HOURS -> 60 * 60 * 1000
+            TimeUnit.MINUTES -> 60 * 1000
+            TimeUnit.SECONDS -> 1000
+            TimeUnit.MILLISECONDS -> 1
+            TimeUnit.NANOSECONDS -> 1 / 1000
+            TimeUnit.MICROSECONDS -> 1 / 1000 / 1000
+        })
+        val expMillis = nowMillis + unitTtl
+        val expDate = Date(expMillis)
+
+        return JWT.create().withJWTId(uuid).withSubject(subject).withIssuer(SecurityConstants.jwtIssuer)
+            .withIssuedAt(nowDate).withExpiresAt(expDate).sign(algorithm())
+    }
+
+    /**
+     * 解析 jwt
+     *
+     * @param jwt jwt 串
+     * @return 解析内容
+     */
+    fun parseJwt(jwt: String): DecodedJWT =
+        JWT.require(algorithm()).build().verify(jwt)
+}

src/main/kotlin/top/fatweb/api/util/RedisUtil.kt

@@ -1,4 +1,4 @@
-package top.fatweb.api.utils
+package top.fatweb.api.util
 
 import org.springframework.data.redis.core.BoundSetOperations
 import org.springframework.data.redis.core.RedisTemplate
@@ -141,7 +141,8 @@ class RedisUtil(private val redisTemplate: RedisTemplate<String, Any>) {
      * @param key 缓存的键
      * @return 缓存的键对应的 Map 数据
      */
-    fun <T> getMap(key: String): Map<String, T>? = redisTemplate.opsForHash<String, Any>().entries(key) as? Map<String, T>
+    fun <T> getMap(key: String): Map<String, T>? =
+        redisTemplate.opsForHash<String, Any>().entries(key) as? Map<String, T>
 
     /**
      * 往 Hash 中存入数据

src/main/kotlin/top/fatweb/api/util/WebUtil.kt

@@ -0,0 +1,10 @@
+package top.fatweb.api.util
+
+import org.springframework.security.core.context.SecurityContextHolder
+import top.fatweb.api.entity.permission.LoginUser
+
+object WebUtil {
+    fun getLoginUser() = SecurityContextHolder.getContext().authentication.principal as LoginUser
+
+    fun getLoginUserId() = getLoginUser().user.id
+}

src/main/kotlin/top/fatweb/api/utils/JwtUtil.kt

@@ -1,5 +0,0 @@
-package top.fatweb.api.utils
-
-class JwtUtil {
-
-}

src/main/resources/mapper/UserMapper.xml

@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
+<mapper namespace="top.fatweb.api.mapper.UserMapper">
+
+</mapper>

src/test/kotlin/top/fatweb/api/FatWebApiApplicationTests.kt

@@ -1,17 +1,19 @@
 package top.fatweb.api
 
+import org.junit.jupiter.api.Assertions.assertEquals
 import org.junit.jupiter.api.Test
 import org.springframework.boot.test.context.SpringBootTest
-import top.fatweb.api.constants.SecurityConstants
-import java.security.MessageDigest
-import java.util.*
+import top.fatweb.api.constant.SecurityConstants
 
 @SpringBootTest
 class FatWebApiApplicationTests {
 
     @Test
     fun contextLoads() {
-        SecurityConstants.jwtKey
     }
 
+    @Test
+    fun removePrefixTest() {
+        assertEquals("12312", "Bearer 12312".removePrefix(SecurityConstants.tokenPrefix))
+    }
 }