Update config file

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

@@ -5,6 +5,7 @@ import org.springframework.boot.autoconfigure.SpringBootApplication
 import org.springframework.boot.runApplication
 import org.springframework.transaction.annotation.EnableTransactionManagement
 import java.io.File
+import java.util.*
 
 @SpringBootApplication
 @EnableTransactionManagement
@@ -17,7 +18,14 @@ fun main(args: Array<String>) {
         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) }
+        FatWebApiApplication::class.java.getResource("/application-config-template.yml")?.readText()
+            ?.let {
+                File("application-config.example.yml").writeText(
+                    it.replace(
+                        "\$uuid\$",
+                        UUID.randomUUID().toString()
+                    )
+                )
+            }
     }
 }

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

@@ -1,8 +1,7 @@
-package top.fatweb.api.constants
+package top.fatweb.api.constant
 
 import org.springframework.boot.context.properties.ConfigurationProperties
 import org.springframework.stereotype.Component
-import java.security.MessageDigest
 import java.util.concurrent.TimeUnit
 
 @Component
@@ -16,14 +15,7 @@ object SecurityConstants {
 
     var jwtTtlUnit = TimeUnit.HOURS
 
-    lateinit var jwtKey: String
+    var jwtKey = "FatWeb"
 
-    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()
-    }
+    var jwtIssuer = "FatWeb"
 }

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

@@ -1,4 +1,4 @@
-package top.fatweb.api.constants
+package top.fatweb.api.constant
 
 import org.springframework.boot.context.properties.ConfigurationProperties
 import org.springframework.stereotype.Component
@@ -13,5 +13,6 @@ object ServerConstants {
 
     lateinit var buildTime: String
 
-    fun buildZoneDateTime(zoneId: ZoneId = ZoneId.systemDefault()): ZonedDateTime = LocalDateTime.parse(buildTime).atZone(ZoneId.of("UTC")).withZoneSameInstant(zoneId)
+    fun buildZoneDateTime(zoneId: ZoneId = ZoneId.systemDefault()): ZonedDateTime =
+        LocalDateTime.parse(buildTime).atZone(ZoneId.of("UTC")).withZoneSameInstant(zoneId)
 }