Add configs and properties

src/main/kotlin/top/fatweb/api/FatWebApiApplication.kt

@@ -1,13 +1,23 @@
 package top.fatweb.api
 
+import org.slf4j.LoggerFactory
 import org.springframework.boot.autoconfigure.SpringBootApplication
 import org.springframework.boot.runApplication
 import org.springframework.transaction.annotation.EnableTransactionManagement
+import java.io.File
 
 @SpringBootApplication
 @EnableTransactionManagement
 class FatWebApiApplication
 
 fun main(args: Array<String>) {
-    runApplication<FatWebApiApplication>(*args)
+    val logger = LoggerFactory.getLogger("main")
+
+    if (File("application-config.yml").exists()) {
+        runApplication<FatWebApiApplication>(*args)
+    } else {
+        logger.warn("File ‘application.yml’ cannot be found in the running path. The configuration file template 'application.example.yml' has been created. Please change the configuration file content and rename it to 'application.yml', and then restart the server.")
+       FatWebApiApplication::class.java.getResource("/application-config-template.yml")?.readText()
+            ?.let { File("application-config.example.yml").writeText(it) }
+    }
 }

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

@@ -0,0 +1,20 @@
+package top.fatweb.api.config
+
+import com.baomidou.mybatisplus.extension.plugins.MybatisPlusInterceptor
+import com.baomidou.mybatisplus.extension.plugins.inner.OptimisticLockerInnerInterceptor
+import com.baomidou.mybatisplus.extension.plugins.inner.PaginationInnerInterceptor
+import org.springframework.context.annotation.Bean
+import org.springframework.context.annotation.Configuration
+
+@Configuration
+class MybatisPlusConfig {
+    @Bean
+    fun mybatisPlusInterceptor(): MybatisPlusInterceptor {
+        val mybatisPlusInterceptor = MybatisPlusInterceptor()
+        mybatisPlusInterceptor.addInnerInterceptor(OptimisticLockerInnerInterceptor())
+        mybatisPlusInterceptor.addInnerInterceptor(PaginationInnerInterceptor())
+
+        return mybatisPlusInterceptor
+    }
+
+}

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

@@ -0,0 +1,34 @@
+package top.fatweb.api.config
+
+import com.fasterxml.jackson.databind.ObjectMapper
+import com.fasterxml.jackson.datatype.jsr310.JavaTimeModule
+import org.springframework.context.annotation.Bean
+import org.springframework.context.annotation.Configuration
+import org.springframework.data.redis.connection.RedisConnectionFactory
+import org.springframework.data.redis.core.RedisTemplate
+import org.springframework.data.redis.serializer.Jackson2JsonRedisSerializer
+import org.springframework.data.redis.serializer.StringRedisSerializer
+
+@Configuration
+class RedisConfig {
+    @Bean
+    fun redisTemplate(redisConnectionFactory: RedisConnectionFactory): RedisTemplate<*, *> {
+        val redisTemplate = RedisTemplate<String, Any>()
+        redisTemplate.connectionFactory = redisConnectionFactory
+        val stringRedisSerializer = StringRedisSerializer()
+        val objectMapper = ObjectMapper().registerModules(JavaTimeModule())
+        val anyJackson2JsonRedisSerializer = Jackson2JsonRedisSerializer<Any>(objectMapper, Any::class.java)
+
+        // 使用StringRedisSerializer来序列化和反序列化redis的key值
+        redisTemplate.keySerializer = stringRedisSerializer
+        redisTemplate.valueSerializer = anyJackson2JsonRedisSerializer
+
+        // Hash的key也采用StringRedisSerializer的序列化方式
+        redisTemplate.hashKeySerializer = stringRedisSerializer
+        redisTemplate.hashValueSerializer = anyJackson2JsonRedisSerializer
+
+        redisTemplate.afterPropertiesSet()
+
+        return redisTemplate
+    }
+}

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

@@ -0,0 +1,19 @@
+package top.fatweb.api.config
+
+import io.swagger.v3.oas.models.OpenAPI
+import io.swagger.v3.oas.models.info.Contact
+import io.swagger.v3.oas.models.info.Info
+import org.springframework.context.annotation.Bean
+import org.springframework.context.annotation.Configuration
+import top.fatweb.api.constants.ServerConstants
+
+@Configuration
+class SwaggerConfig {
+
+    @Bean
+    fun customOpenAPI(): OpenAPI? {
+        val contact = Contact().name("FatttSnake").url("https://fatweb.top").email("fatttsnake@fatweb.top")
+        return OpenAPI().info(Info().title("FatWeb API 文档").description("FatWeb 后端 API 文档，包含各个 Controller 调用信息").contact(contact).version(
+            ServerConstants.version))
+    }
+}

src/main/kotlin/top/fatweb/api/constants/SecurityConstants.kt

@@ -0,0 +1,29 @@
+package top.fatweb.api.constants
+
+import org.springframework.boot.context.properties.ConfigurationProperties
+import org.springframework.stereotype.Component
+import java.security.MessageDigest
+import java.util.concurrent.TimeUnit
+
+@Component
+@ConfigurationProperties("app.security")
+object SecurityConstants {
+    var headerString = "Authorization"
+
+    var tokenPrefix = "Bearer "
+
+    var jwtTtl = 2L
+
+    var jwtTtlUnit = TimeUnit.HOURS
+
+    lateinit var jwtKey: String
+
+    private fun ByteArray.hex(): String {
+        return joinToString("") { "%02X".format(it) }
+    }
+
+    private fun String.md5(): String {
+        val bytes = MessageDigest.getInstance("MD5").digest(this.toByteArray())
+        return bytes.hex()
+    }
+}

src/main/kotlin/top/fatweb/api/constants/ServerConstants.kt

@@ -0,0 +1,17 @@
+package top.fatweb.api.constants
+
+import org.springframework.boot.context.properties.ConfigurationProperties
+import org.springframework.stereotype.Component
+import java.time.LocalDateTime
+import java.time.ZoneId
+import java.time.ZonedDateTime
+
+@Component
+@ConfigurationProperties("app")
+object ServerConstants {
+    lateinit var version: String
+
+    lateinit var buildTime: String
+
+    fun buildZoneDateTime(zoneId: ZoneId = ZoneId.systemDefault()): ZonedDateTime = LocalDateTime.parse(buildTime).atZone(ZoneId.of("UTC")).withZoneSameInstant(zoneId)
+}

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

@@ -0,0 +1,15 @@
+package top.fatweb.api.filter
+
+import jakarta.servlet.*
+import java.lang.Exception
+
+class ExceptionFilter : Filter {
+    override fun doFilter(servletRequest: ServletRequest?, servletResponse: ServletResponse?, filterChain: FilterChain?) {
+        try {
+            filterChain!!.doFilter(servletRequest, servletResponse)
+        } catch (e: Exception) {
+            servletRequest?.setAttribute("filter.error", e)
+            servletRequest?.getRequestDispatcher("/error/thrown")?.forward(servletRequest, servletResponse)
+        }
+    }
+}

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

@@ -0,0 +1,26 @@
+package top.fatweb.api.filter
+
+import jakarta.servlet.FilterChain
+import jakarta.servlet.http.HttpServletRequest
+import jakarta.servlet.http.HttpServletResponse
+import org.springframework.util.StringUtils
+import org.springframework.web.filter.OncePerRequestFilter
+import top.fatweb.api.constants.SecurityConstants
+import top.fatweb.api.utils.RedisUtil
+
+class JwtAuthenticationTokenFilter(private val redisUtil: RedisUtil) : OncePerRequestFilter() {
+    override fun doFilterInternal(
+        request: HttpServletRequest,
+        response: HttpServletResponse,
+        filterChain: FilterChain
+    ) {
+        val token = request.getHeader(SecurityConstants.headerString)
+
+        if (!StringUtils.hasText(token) || "/error/thrown" == request.servletPath) {
+            filterChain.doFilter(request, response)
+            return
+        }
+
+
+    }
+}

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

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

src/main/resources/application-config-template.yml

@@ -0,0 +1,32 @@
+server:
+#  port: 8080 # Server port
+
+spring:
+  datasource:
+    url: jdbc:mysql://localhost # MySQL url
+    username: root # MySQL username
+    password: root # MySQL password
+
+    druid:
+#      initial-size: 20 # Initial number of connections
+#      min-idle: 20 # Minimum number of connection pools
+#      max-active: 20 # Maximum number of connection pools
+#      max-wait: 3000 # Maximum connection timeout
+#      min-evictable-idle-time-millis: 300000 # Minimum time for a connection to live in the pool
+#      max-evictable-idle-time-millis: 900000 # Maximum time for a connection to live in the pool
+#      break-after-acquire-failure: true # Terminate the retry when the server fails to reconnect for the specified number of times
+#      connection-error-retry-attempts: 5 # Number of failed reconnections
+
+  data:
+    redis:
+#      database: 0 # Redis database (default: 0)
+#      host: localhost # Redis host (default: localhost)
+#      port: 6379 # Redis port (default: 6379)
+#      password:  # Password of redis
+#      connect-timeout: 3000 # Redis connect timeout
+#      lettuce:
+#        pool:
+#          min-idle: 0
+#          max-idle: 8
+#          max-active: 8
+#          max-wait: -1ms

src/main/resources/application.yml

@@ -1 +1,15 @@
+app:
+  version: @project.version@
+  build-time: @build.timestamp@
+  security:
+    header-string: "Authorization"
+    token-prefix: "Bearer "
+    jwt-ttl: 2
+    jwt-ttl-unit: hours
 
+spring:
+  profiles:
+    active: config
+  datasource:
+    type: com.alibaba.druid.pool.DruidDataSource
+    driver-class-name: com.mysql.cj.jdbc.Driver