diff --git a/build.gradle.kts b/build.gradle.kts
index f744107..5e2113d 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -7,7 +7,7 @@ plugins {
 }
 
 group = "me.jie65535"
-version = "0.1"
+version = "0.2"
 
 repositories {
     maven("https://maven.aliyun.com/repository/public")
@@ -16,5 +16,4 @@ repositories {
 
 dependencies{
     implementation("org.jsoup:jsoup:1.13.1")
-    implementation("com.beust:klaxon:5.5")
 }
\ No newline at end of file
diff --git a/src/main/kotlin/GlotAPI.kt b/src/main/kotlin/GlotAPI.kt
index fa4d035..f4348e7 100644
--- a/src/main/kotlin/GlotAPI.kt
+++ b/src/main/kotlin/GlotAPI.kt
@@ -1,6 +1,5 @@
-import com.beust.klaxon.Json
-import com.beust.klaxon.Klaxon
-import java.security.InvalidKeyException
+import kotlinx.serialization.*
+import kotlinx.serialization.json.*
 
 /**
  * # glot.io api 封装
@@ -8,7 +7,6 @@ import java.security.InvalidKeyException
  * 它提供了免费API供外界使用，API文档见 [https://github.com/glotcode/glot/blob/master/api_docs]
  * 本类是对该API文档的封装
  * 通过 [listLanguages] 获取支持在线运行的编程语言列表
- * ~~通过 [getVersion] 获取对应语言的最新版本请求地址~~
  * 通过 [getSupport] 判断指定编程语言是否支持
  * 通过 [getTemplateFile] 来获取指定编程语言的模板文件（runCode需要）
  * 以上接口均有缓存，仅首次获取不同数据时会发起请求。因此，首次运行可能较慢。
@@ -25,12 +23,16 @@ object GlotAPI {
     // 运行代码需要api token，这是的我账号申请的，可以在[https://glot.io/auth/page/simple/register]注册帐号
     private const val API_TOKEN = "074ef4a7-7a94-47f2-9891-85511ef1fb52"
 
+    @Serializable
     data class Language(val name: String, val url: String)
+    @Serializable
     data class CodeFile(val name: String, val content: String)
 
-    data class RunCodeRequest(@Json(serializeNull = false) val stdin: String?,
-                              @Json(serializeNull = false) val command: String?,
+    @Serializable
+    data class RunCodeRequest(val stdin: String? = null,
+                              val command: String? = null,
                               val files: List<CodeFile>)
+    @Serializable
     data class RunResult(val stdout: String, val stderr: String, val error: String)
 
     private var languages: List<Language>? = null
@@ -55,7 +57,7 @@ object GlotAPI {
      */
     fun listLanguages(): List<Language> {
         if (languages == null) {
-            languages = Klaxon().parseArray(HttpUtil.get(URL_LIST_LANGUAGES)) ?: throw Exception("未获取到任何数据")
+            languages = Json.decodeFromString(HttpUtil.get(URL_LIST_LANGUAGES)) ?: throw Exception("未获取到任何数据")
         }
         return languages!!
     }
@@ -71,10 +73,10 @@ object GlotAPI {
      * 获取编程语言请求地址，若不支持将会抛出异常
      * @param language 编程语言名字（忽略大小写）
      * @return 返回语言请求地址
-     * @exception InvalidKeyException 不支持的语言
+     * @exception Exception 不支持的语言
      */
     fun getSupport(language: String): Language =
-        listLanguages().find { it.name.equals(language, true) } ?: throw InvalidKeyException("不支持的语言")
+        listLanguages().find { it.name.equals(language, true) } ?: throw Exception("不支持的语言")
 
     /**
      * 获取指定编程语言的模板文件（缓存）
@@ -91,7 +93,6 @@ object GlotAPI {
         return templateFile
     }
 
-
     /**
      * # 运行代码
      *
@@ -165,8 +166,8 @@ object GlotAPI {
      * 导致程序无法在限定时间内返回，将会报告超时异常
      */
     fun runCode(language: Language, requestData: RunCodeRequest): RunResult {
-        val response = HttpUtil.post(language.url + "/latest", Klaxon().toJsonString(requestData), mapOf("Authorization" to API_TOKEN))
-        return Klaxon().parse(response) ?: throw Exception("未获取到任何数据")
+        val response = HttpUtil.post(language.url + "/latest", Json.encodeToString(requestData), mapOf("Authorization" to API_TOKEN))
+        return Json.decodeFromString(response) ?: throw Exception("未获取到任何数据")
     }
 
 
diff --git a/src/main/kotlin/HttpUtil.kt b/src/main/kotlin/HttpUtil.kt
index e415c4a..8de14cb 100644
--- a/src/main/kotlin/HttpUtil.kt
+++ b/src/main/kotlin/HttpUtil.kt
@@ -2,7 +2,6 @@ import okhttp3.MediaType
 import okhttp3.MediaType.Companion.toMediaTypeOrNull
 import okhttp3.OkHttpClient
 import okhttp3.Request
-import okhttp3.RequestBody
 import okhttp3.RequestBody.Companion.toRequestBody
 import org.jsoup.Jsoup
 import org.jsoup.nodes.Document
diff --git a/src/main/kotlin/JCC.kt b/src/main/kotlin/JCC.kt
index b04f6cd..0f91820 100644
--- a/src/main/kotlin/JCC.kt
+++ b/src/main/kotlin/JCC.kt
@@ -16,13 +16,14 @@ object JCC : KotlinPlugin(
     JvmPluginDescription(
         id = "me.jie65535.jcc",
         name = "J Compiler Collection",
-        version = "0.1",
+        version = "0.2",
     ) {
         author("jie65535")
         info("""在线编译器集合""")
     }
 ) {
     const val CMD_PREFIX = "jcc"
+    const val MSG_MAX_LENGTH = 550
 
     override fun onEnable() {
         logger.info { "Plugin loaded" }
@@ -36,30 +37,34 @@ object JCC : KotlinPlugin(
                 val msg = it.substring(CMD_PREFIX.length).trim()
                 if (msg.isNotEmpty()) {
                     val index = msg.indexOfFirst(Char::isWhitespace)
-                    if (index >= 0)
-                    {
-                        val language = msg.substring(0, index)
-                        val code = msg.substring(index).trim()
-                        if (!GlotAPI.checkSupport(language))
-                            return@reply "不支持这种编程语言\n/jcc list #列出所有支持的编程语言"
-                        if (code.isEmpty())
-                            return@reply "请输入要运行的代码"
-                        try {
-                            // subject.sendMessage("正在执行，请稍等...")
-                            logger.info("请求执行代码")
-                            val result = GlotAPI.runCode(language, code)
-                            val builder = MessageChainBuilder()
-                            var c = 0
-                            if (result.stdout.isNotEmpty()) c++
-                            if (result.stderr.isNotEmpty()) c++
-                            if (result.error.isNotEmpty()) c++
-                            val title = c >= 2
-                            var msgLength = 0
-                            if (subject is Group) {
-                                builder.add(At(sender))
-                                builder.add("\n")
-                            }
+                    val language =  if (index >= 0) msg.substring(0, index) else msg
+                    if (!GlotAPI.checkSupport(language))
+                        return@reply "不支持这种编程语言\n/jcc list #列出所有支持的编程语言"
+                    val code = if (index >= 0) {
+                        msg.substring(index).trim()
+                    } else {
+                        return@reply "$CMD_PREFIX $language\n" + GlotAPI.getTemplateFile(language).content
+                    }
 
+                    try {
+                        // subject.sendMessage("正在执行，请稍等...")
+                        logger.info("请求执行代码")
+                        val result = GlotAPI.runCode(language, code)
+                        val builder = MessageChainBuilder()
+                        var c = 0
+                        if (result.stdout.isNotEmpty()) c++
+                        if (result.stderr.isNotEmpty()) c++
+                        if (result.error.isNotEmpty()) c++
+                        val title = c >= 2
+                        var msgLength = 0
+                        if (subject is Group) {
+                            builder.add(At(sender))
+                            builder.add("\n")
+                        }
+
+                        if (c == 0) {
+                            builder.add("没有任何结果呢~")
+                        } else {
                             if (result.error.isNotEmpty()) {
                                 builder.add("error:\n")
                                 builder.add(result.error)
@@ -75,17 +80,17 @@ object JCC : KotlinPlugin(
                                 builder.add(result.stderr)
                                 msgLength += result.stderr.length
                             }
-                            val messageChain = builder.build()
-                            if (msgLength > 500) {
-                                val messageContent = messageChain.contentToString()
-                                return@reply "消息内容过长，已贴到Pastebin：\n" + UbuntuPastebinHelper.paste(messageContent)
-                            } else {
-                                return@reply messageChain
-                            }
-                        } catch (e: Exception) {
-                            logger.warning(e)
-                            return@reply "执行失败\n原因：${e.message}"
                         }
+                        val messageChain = builder.build()
+                        if (msgLength > MSG_MAX_LENGTH) {
+                            val messageContent = messageChain.contentToString()
+                            return@reply "消息内容过长，已贴到Pastebin：\n" + UbuntuPastebinHelper.paste(messageContent)
+                        } else {
+                            return@reply messageChain
+                        }
+                    } catch (e: Exception) {
+                        logger.warning(e)
+                        return@reply "执行失败\n原因：${e.message}"
                     }
                 }
                 return@reply "请输入正确的命令！例如：\n$CMD_PREFIX python print(\"Hello world\")"
diff --git a/src/main/kotlin/JccCommand.kt b/src/main/kotlin/JccCommand.kt
index 04ec356..066217f 100644
--- a/src/main/kotlin/JccCommand.kt
+++ b/src/main/kotlin/JccCommand.kt
@@ -1,3 +1,4 @@
+import JCC.CMD_PREFIX
 import net.mamoe.mirai.console.command.CommandSender
 import net.mamoe.mirai.console.command.CompositeCommand
 
@@ -19,6 +20,17 @@ object JccCommand : CompositeCommand(
     @SubCommand
     @Description("帮助")
     suspend fun CommandSender.help() {
-        sendMessage("直接调用jcc即可运行代码\n例如：jcc python print(\"Hello world\")\n其它指令：\n$usage")
+        sendMessage("直接调用${CMD_PREFIX}即可运行代码\n例如：${CMD_PREFIX} python print(\"Hello world\")\n其它指令：\n$usage")
+    }
+
+    @SubCommand
+    @Description("获取指定语言的模板")
+    suspend fun CommandSender.template(language: String) {
+        if (!GlotAPI.checkSupport(language)) {
+            sendMessage("不支持该语言，请使用/jcc list列出所有支持的编程语言")
+            return
+        }
+        val file = GlotAPI.getTemplateFile(language)
+        sendMessage("$CMD_PREFIX $language\n" + file.content)
     }
 }
\ No newline at end of file
diff --git a/src/main/kotlin/UbuntuPastebinHelper.kt b/src/main/kotlin/UbuntuPastebinHelper.kt
index 90acf7f..a339e14 100644
--- a/src/main/kotlin/UbuntuPastebinHelper.kt
+++ b/src/main/kotlin/UbuntuPastebinHelper.kt
@@ -53,7 +53,7 @@ object UbuntuPastebinHelper {
      * @param expiration 过期时间（(empty)/day/week/month/year） 默认值："day"
      * @return 返回访问地址，如：https://paste.ubuntu.com/p/nmn8yKMtND/
      */
-    fun paste(content: String, syntax: String = "text", poster: String = "temp", expiration: String = "day"): String? {
+    fun paste(content: String, syntax: String = "text", poster: String = "temp", expiration: String = "day"): String {
         if (poster.length > 30)
             throw Exception("poster length too long!")
         if (content.isEmpty())