应当如何发送图片？ #864

AdorableParker · 2021-01-15T14:21:32Z

AdorableParker
Jan 15, 2021

依据文档说明，似乎只需要将inputStream或是File类型的数据传给sendImage就可以了
但我将通过url.openConnection().getInputStream() 获取的inputStream和通过File(path)获取的File类型数据传入都会报错

Answered by StageGuard

Jan 16, 2021

参考：

eventChannel.subscribeAlways<GroupMessageEvent> {
    //① 将文件转为 ExternalResource，指定格式或不指定
    group.sendImage(File("jpg_image_path").toExternalResource("jpg"))
    //② 先上传图片，获得 Image
    group.uploadImage(File("png_image_path").toExternalResource("png")).also {
        // ② 和其他类型消息一起发送
        group.sendMessage(buildMessageChain {
            add(PlainText("plain"))
            add(it)
        })
        // ② 直接发送
        group.sendMessage(it)
    }
    //直接传入 File 和 图片格式
    group.sendImage(File("img_path"), "bmp")
    //直接传入 InputStream 和 图片格式
    group.sendImage(File("file").inputStream(), "gif")
}

View full answer

Karlatemp · 2021-01-15T14:22:42Z

Karlatemp
Jan 15, 2021
Maintainer

请提供版本号和报错内容以便于

6 replies

AdorableParker Jan 15, 2021
Author

这是控制台错误报告

2021-01-15 22:24:40 W/Ikarus: Exception in executing command `[mirai:source:[4614],[1688335658]]#WikiAzurLane 1`
java.lang.reflect.InvocationTargetException
        at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:64)
        at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.base/java.lang.reflect.Method.invoke(Method.java:564)
        at kotlin.reflect.jvm.internal.calls.CallerImpl$Method.callMethod(CallerImpl.kt:97)
        at kotlin.reflect.jvm.internal.calls.CallerImpl$Method$Instance.call(CallerImpl.kt:113)
        at kotlin.reflect.jvm.internal.KCallableImpl.call(KCallableImpl.kt:108)
        at kotlin.reflect.jvm.internal.KCallableImpl.callDefaultMethod$kotlin_reflection(KCallableImpl.kt:159)
        at kotlin.reflect.full.KCallables.callSuspendBy(KCallables.kt:73)
        at net.mamoe.mirai.console.internal.command.CommandReflector$findSubCommands$6$1.invokeSuspend(CommandReflector.kt:283)
        at net.mamoe.mirai.console.internal.command.CommandReflector$findSubCommands$6$1.invoke(CommandReflector.kt)
        at net.mamoe.mirai.console.command.descriptor.CommandSignatureFromKFunctionImpl.call$suspendImpl(CommandSignature.kt:88)
        at net.mamoe.mirai.console.command.descriptor.CommandSignatureFromKFunctionImpl.call(CommandSignature.kt)
        at net.mamoe.mirai.console.internal.command.CommandManagerImplKt.executeCommandImpl(CommandManagerImpl.kt:161)
        at net.mamoe.mirai.console.command.CommandManager.executeCommand(CommandManager.kt:130)
        at net.mamoe.mirai.console.command.CommandManager$INSTANCE.executeCommand(CommandManager.kt)
        at net.mamoe.mirai.console.command.CommandManager.executeCommand$default(CommandManager.kt:128)
        at net.mamoe.mirai.console.plugins.chat.command.PluginMain$onEnable$2.invokeSuspend(PluginMain.kt:57)
        at net.mamoe.mirai.console.plugins.chat.command.PluginMain$onEnable$2.invoke(PluginMain.kt)
        at net.mamoe.mirai.event.EventChannel$subscribeAlways$1.invokeSuspend(EventChannel.kt:394)
        at net.mamoe.mirai.event.EventChannel$subscribeAlways$1.invoke(EventChannel.kt)
        at net.mamoe.mirai.internal.event.Handler$onEvent$2.invokeSuspend(InternalEventListeners.kt:49)
        at net.mamoe.mirai.internal.event.Handler$onEvent$2.invoke(InternalEventListeners.kt)
        at kotlinx.coroutines.intrinsics.UndispatchedKt.startUndispatchedOrReturn(Undispatched.kt:91)
        at kotlinx.coroutines.BuildersKt__Builders_commonKt.withContext(Builders.common.kt:161)
        at kotlinx.coroutines.BuildersKt.withContext(Unknown Source)
        at net.mamoe.mirai.internal.event.Handler.onEvent(InternalEventListeners.kt:49)
        at net.mamoe.mirai.event.EventKt.broadcast(Event.kt:226)
        at net.mamoe.mirai.internal.network.QQAndroidBotNetworkHandler.handlePacket(QQAndroidBotNetworkHandler.kt:615)
        at net.mamoe.mirai.internal.network.QQAndroidBotNetworkHandler$generifiedParsePacket$2.invokeSuspend(QQAndroidBotNetworkHandler.kt:571)
        at net.mamoe.mirai.internal.network.QQAndroidBotNetworkHandler$generifiedParsePacket$2.invoke(QQAndroidBotNetworkHandler.kt)
        at net.mamoe.mirai.internal.network.protocol.packet.KnownPacketFactories.handleIncomingPacket$mirai_core(PacketFactory.kt:281)
        at net.mamoe.mirai.internal.network.protocol.packet.KnownPacketFactories.parseIncomingPacket(PacketFactory.kt:237)
        at net.mamoe.mirai.internal.network.QQAndroidBotNetworkHandler.generifiedParsePacket(QQAndroidBotNetworkHandler.kt:562)
        at net.mamoe.mirai.internal.network.QQAndroidBotNetworkHandler.parsePacket(QQAndroidBotNetworkHandler.kt:557)
        at net.mamoe.mirai.internal.network.QQAndroidBotNetworkHandler$parsePacketAsync$1.invokeSuspend(QQAndroidBotNetworkHandler.kt:540)
        at kotlin.coroutines.jvm.internal.BaseContinuationImpl.resumeWith(ContinuationImpl.kt:33)
        at kotlinx.coroutines.DispatchedTask.run(DispatchedTask.kt:106)
        at kotlinx.coroutines.scheduling.CoroutineScheduler.runSafely(CoroutineScheduler.kt:571)
        at kotlinx.coroutines.scheduling.CoroutineScheduler$Worker.executeTask(CoroutineScheduler.kt:738)
        at kotlinx.coroutines.scheduling.CoroutineScheduler$Worker.runWorker(CoroutineScheduler.kt:678)
        at kotlinx.coroutines.scheduling.CoroutineScheduler$Worker.run(CoroutineScheduler.kt:665)
Caused by: java.lang.NoSuchMethodError: 'java.lang.Object net.mamoe.mirai.console.command.MemberCommandSenderOnMessage.sendImage(java.io.InputStream, kotlin.coroutines.Continuation)'
        at org.plugin.icarus.WikiAzurLane.strengthRanking(MyPluginMain.kt:206)
        ... 42 more

Karlatemp Jan 15, 2021
Maintainer

CommandSender 存在 public val subject: Contact?, 请使用该属性进行 uploadImage 等操作

另: 请提供错误代码源码以及代码参考文档，CommandSender 并不存在 sendImage, 会有助于优化文档

AdorableParker Jan 15, 2021
Author

以下为错误代码源码

@ConsoleExperimentalApi
object WikiAzurLane : CompositeCommand(
        MyPlug, "WikiAzurLane", "碧蓝wiki", 
        description = "wiki基本榜单查询") {
    override val usage: String = "$primaryName <榜单ID>\n"

    @SubCommand("强度榜","强度主榜","1")
    suspend fun MemberCommandSenderOnMessage.strengthRanking() {
        MyPlug.logger.info { "获取图片" }
        val imageStream = getWikiImg("PVE用舰船综合性能强度榜",1)
        if (imageStream != null){
            sendImage(imageStream)
        }
        sendMessage("获取Wiki图片失败")
    }

以下为参考的代码注释

/**
 * 自定义表情 (收藏的表情) 和普通图片.
 *
 *
 * 最推荐的存储方式是存储图片原文件, 每次发送图片时都使用文件上传.
 * 在上传时服务器会根据其缓存情况回复已有的图片 ID 或要求客户端上传. 详见 [Contact.uploadImage]
 *
 * ### 根据 ID 构造图片
 * - [Image.fromId]. 在 Kotlin, 更推荐使用顶层函数 `val image = Image("id")`
 *
 * ### 上传和发送图片
 * - [Contact.uploadImage] 上传 [资源文件][ExternalResource] 并得到 [Image] 消息
 * - [Contact.sendImage] 上传 [资源文件][ExternalResource] 并发送返回的 [Image] 作为一条消息
 *
 * - [ExternalResource.uploadAsImage]
 * - [ExternalResource.sendAsImageTo]
 * - [Contact.sendImage]
 *
 * ### 下载图片
 * - [Image.queryUrl] 扩展函数. 查询图片下载链接
 * - [IMirai.queryImageUrl] 查询图片下载链接 (Java 使用)
 *
 * ## mirai 码支持
 * 格式: &#91;mirai:image:*[Image.imageId]*&#93;
 *
 * @see FlashImage 闪照
 * @see Image.flash 转换普通图片为闪照
 */

另附IDEA的语法提示截图：

Him188 Jan 15, 2021
Maintainer

这是 Kotlin 编译器问题。
请以 subject.sendMessage 替代

Him188 Jan 15, 2021
Maintainer

当然现在也推荐更新到 mirai 2.0（避免了编译器出问题），如果有时间可以适配一下 https://github.com/mamoe/mirai/releases/tag/2.0.0

StageGuard · 2021-01-16T01:54:09Z

StageGuard
Jan 16, 2021
Collaborator

参考：

eventChannel.subscribeAlways<GroupMessageEvent> {
    //① 将文件转为 ExternalResource，指定格式或不指定
    group.sendImage(File("jpg_image_path").toExternalResource("jpg"))
    //② 先上传图片，获得 Image
    group.uploadImage(File("png_image_path").toExternalResource("png")).also {
        // ② 和其他类型消息一起发送
        group.sendMessage(buildMessageChain {
            add(PlainText("plain"))
            add(it)
        })
        // ② 直接发送
        group.sendMessage(it)
    }
    //直接传入 File 和 图片格式
    group.sendImage(File("img_path"), "bmp")
    //直接传入 InputStream 和 图片格式
    group.sendImage(File("file").inputStream(), "gif")
}

4 replies

yujumpjump Mar 26, 2023

有java的例子吗发送文字和本地图片一起

AdorableParker Mar 26, 2023
Author

有java的例子吗发送文字和本地图片一起

构建MessageChain对象即可

yujumpjump Mar 26, 2023

好的，大佬知道怎么获取别人撤回的消息呢

AdorableParker Mar 27, 2023
Author

好的，大佬知道怎么获取别人撤回的消息呢

通常实现是自行保存记录，通撤回事件的id进行索引

CHACCA165 · 2023-06-10T03:05:01Z

CHACCA165
Jun 10, 2023

java怎么发图片呀，能发下代码参考一下嘛，这个concat是什么东西，没看懂 - -

5 replies

StageGuard Jun 10, 2023
Collaborator

java 请使用 ExternalResource.create() 创建

CHACCA165 Jun 10, 2023

如何添加到MessageChainBuilder里

StageGuard Jun 10, 2023
Collaborator

上传图片 group.uploadImage(ExternalResource) 获得 Image 对象, 就可以添加进 message chain 里了

CHACCA165 Jun 10, 2023

感谢大佬

CHACCA165 Jun 10, 2023

大佬对于监听一会后，机器人要重新扫码登录的问题，你有出现嘛，有解决方法嘛

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应当如何发送图片？ #864

AdorableParker Jan 15, 2021

Replies: 3 comments · 15 replies

Karlatemp Jan 15, 2021 Maintainer

AdorableParker Jan 15, 2021 Author

Karlatemp Jan 15, 2021 Maintainer

AdorableParker Jan 15, 2021 Author

Him188 Jan 15, 2021 Maintainer

Him188 Jan 15, 2021 Maintainer

StageGuard Jan 16, 2021 Collaborator

yujumpjump Mar 26, 2023

AdorableParker Mar 26, 2023 Author

yujumpjump Mar 26, 2023

AdorableParker Mar 27, 2023 Author

CHACCA165 Jun 10, 2023

StageGuard Jun 10, 2023 Collaborator

CHACCA165 Jun 10, 2023

StageGuard Jun 10, 2023 Collaborator

CHACCA165 Jun 10, 2023

CHACCA165 Jun 10, 2023

AdorableParker
Jan 15, 2021

Replies: 3 comments 15 replies

Karlatemp
Jan 15, 2021
Maintainer

AdorableParker Jan 15, 2021
Author

Karlatemp Jan 15, 2021
Maintainer

AdorableParker Jan 15, 2021
Author

Him188 Jan 15, 2021
Maintainer

Him188 Jan 15, 2021
Maintainer

StageGuard
Jan 16, 2021
Collaborator

AdorableParker Mar 26, 2023
Author

AdorableParker Mar 27, 2023
Author

CHACCA165
Jun 10, 2023

StageGuard Jun 10, 2023
Collaborator

StageGuard Jun 10, 2023
Collaborator