feat: improve the response code

src/main/kotlin/biz/devloper.kt

@@ -16,7 +16,7 @@ import java.util.*
  * @return [Resp]
  */
 fun validateToken(token: String?): Resp {
-    val tk = token.throwIfNullOrEmpty("Token不能为空")
+    val tk = token.throwIfNullOrEmpty("Token不能为空", 400)
     val qr = DB.from(ApplicationToken)
         .select(ApplicationToken.status, ApplicationToken.id)
         .where {

src/main/kotlin/exception/ex.kt

@@ -1,8 +1,6 @@
 package exception
 
-class ServiceException : RuntimeException {
-    constructor(message: String?) : super(message)
-    constructor() : super()
+class ServiceException(message: String?, val code: Int = 200) : RuntimeException(message) {
 
     override fun fillInStackTrace() = this
 }

src/main/kotlin/router/router.kt

@@ -39,12 +39,13 @@ private fun errHandler(ctx: RoutingContext) {
     val ex = ctx.failure()
     val resp = ctx.response()
     resp.putHeader("Content-Type", "application/json")
-    resp.setStatusCode(500)
     if (ex is ServiceException) {
+        ctx.response().setStatusCode(ex.code)
         ctx.end(Resp.fail(ex.message).toJson())
         log.error("ServiceException {}", ex.message)
         return
     }
+    resp.setStatusCode(500)
     log.error("unexpected error ", ex)
     ctx.end(UEE)
 }

src/main/kotlin/utils/util.kt

@@ -10,9 +10,9 @@ fun Boolean.throwIf(msg: String) {
     }
 }
 
-fun <T> T?.throwIfNullOrEmpty(msg: String): T {
+fun <T> T?.throwIfNullOrEmpty(msg: String, code: Int = 200): T {
     if (this == null || (this is String && this.isEmpty())) {
-        throw ServiceException(msg)
+        throw ServiceException(msg, code)
     }
     return this
 }