Suspension functions can be called only within coroutine body

250king

我因为要把bot与RabbmitMQ结合，就尝试写一个deom——接受到消息，然后转发到群

package love.hana.bot.qq.subscribe.twitter

import com.rabbitmq.client.AMQP
import com.rabbitmq.client.ConnectionFactory
import com.rabbitmq.client.DefaultConsumer
import com.rabbitmq.client.Envelope
import net.mamoe.mirai.console.plugin.jvm.JvmPluginDescription
import net.mamoe.mirai.console.plugin.jvm.KotlinPlugin
import net.mamoe.mirai.event.GlobalEventChannel
import net.mamoe.mirai.event.events.BotOnlineEvent
import net.mamoe.mirai.message.data.PlainText
import java.io.IOException


object Plugin: KotlinPlugin(JvmPluginDescription("love.hana.bot.qq.subscribe.twitter", "1.0.0", "Twitter订阅推送")) {
    override fun onEnable() {
        val auth = ConnectionFactory()
        auth.host = "127.0.0.1"
        auth.username = ""
        auth.password = ""
        val mq = auth.newConnection()
        val channel = mq.createChannel()
        channel.queueDeclare("love.hana.bot.qq.subscribe.twitter", true, false, true, null)
        channel.queueBind("love.hana.bot.qq.subscribe.twitter", "amq.topic", "subscribe.twitter")
        GlobalEventChannel.subscribeOnce<BotOnlineEvent> {event ->
            channel.basicConsume("love.hana.bot.qq.subscribe.twitter", false, object: DefaultConsumer(channel) {
                @Throws(IOException::class)
                override fun handleDelivery(consumerTag: String?, envelope: Envelope?, properties: AMQP.BasicProperties?, body: ByteArray?) {
                    if (body != null) {
                        bot.getGroup(891766260L)?.sendMessage(PlainText(String(body)))   //提示这边出现问题
                    }
                }
            })
        }
    }
}

但打包成插件后就报错：

e: C:\path\to\user\Documents\project\qq-bot\plugin\subscribe-twitter\src\main\kotlin\love\hana\bot\qq\subscribe\twitter\Plugin.kt: (30, 51): Suspension functions can be called only within coroutine body

刚开始用Kotlin，不知怎么解决？

RainChan

必须在另一个协程里调用suspend function

250king

@rainchan 那是怎么弄的？

Nambers

runBlocking{}

Karlatemp

https://www.kotlincn.net/docs/reference/coroutines/coroutines-guide.html