获取回复消息(QuoteReplay)指向原文的实现思路

[MrXiaoM]

总所周知，腾讯服务器给你返回的 QuoteReply 的源消息并不是富文本消息，也就是说，图片会“退化”为[图片]等等。如果我们想做回复消息搜图之类的功能，这给我们带来了比较多的麻烦。

但是，我们可以取到源消息的 MessageSource，只要你本地存了聊天记录，就能够通过 MessageSource 获取相应消息。按照这个思路，我们只要跟QQ客户端一样，把消息存到本地，需要时获取即可。

具体实现

本帖中将使用 Mirai Hibernate Plugin 插件储存聊天记录，演示获取回复消息原文的方法。

引用依赖

// build.gradle(.kts)

repositories {
    mavenCentral()
}

dependencies {
    compileOnly("xyz.cssxsh.mirai:mirai-hibernate-plugin:依赖版本")
}

// hibernate 6 和 HikariCP 5 需要 jdk11
mirai {
    jvmTarget = JavaVersion.VERSION_11
}

//author("MrXiaoM")
// 在主类插件信息处声明插件依赖关系
dependsOn("xyz.cssxsh.mirai.plugin.mirai-hibernate-plugin", false)

Kotlin

val QuoteReply.originalMessageFromLocal: MessageChain
    get() = MiraiHibernateRecorder[source].firstOrNull()?.toMessageChain() ?: source.originalMessage

// 使用示例
@EventHandler
fun GroupMessageEvent.listen() {
    // 检测回复消息
    message[QuoteReply.Key]?.run { 
        val original = originalMessageFromLocal
        // do sth.
    }
}

Java

    public static MessageChain getOriginalMessageFromLocal(QuoteReply quote) {
        Optional<MessageRecord> record = MiraiHibernateRecorder.INSTANCE.get(quote.getSource()).stream().findFirst();
        return record.map(MessageRecord::toMessageChain).orElseGet(() -> quote.getSource().getOriginalMessage());
    }
    // 使用示例
    @EventHandler
    public void onGroupMessage(GroupMessageEvent event) {
        // 检测回复消息
        QuoteReply quote = event.getMessage().get(QuoteReply.Key);
        if (quote != null) {
            MessageChain original = getOriginalMessageFromLocal(quote);
            // do sth.
        }
    }

[nannanness]

您好，请教一下，我启动后MiraiHibernateRecorder.INSTANCE是null，然后我看readme里面说需要手动对 xyz.cssxsh.mirai.hibernate.factory 进行初始化，和对 MiraiHibernateRecorder 进行注册，但是我没找到factory，也不知道怎么初始化

[MrXiaoM]

@nannanness 但是 MiraiHibernateRecorder 是单例类，它的实例不可能为 null。
说的手动注册，是指需要在 EventChannel 注册它为 listenerHost

[nannanness]

你好，我注册了MiraiHibernateRecorder，但是调用的时候报错了，好像是实例化的问题，能帮忙看下吗
Exception in thread "DefaultDispatcher-worker-2" java.lang.RuntimeException: Exception while trying to handle coroutine exception
at kotlinx.coroutines.CoroutineExceptionHandlerKt.handlerException(CoroutineExceptionHandler.kt:38)
at kotlinx.coroutines.CoroutineExceptionHandlerKt.handleCoroutineException(CoroutineExceptionHandler.kt:29)
at kotlinx.coroutines.StandaloneCoroutine.handleJobException(Builders.common.kt:196)
at kotlinx.coroutines.JobSupport.finalizeFinishingState(JobSupport.kt:229)
at kotlinx.coroutines.JobSupport.tryMakeCompletingSlowPath(JobSupport.kt:906)
at kotlinx.coroutines.JobSupport.tryMakeCompleting(JobSupport.kt:863)
at kotlinx.coroutines.JobSupport.makeCompletingOnce$kotlinx_coroutines_core(JobSupport.kt:828)
at kotlinx.coroutines.AbstractCoroutine.resumeWith(AbstractCoroutine.kt:100)
at kotlin.coroutines.jvm.internal.BaseContinuationImpl.resumeWith(ContinuationImpl.kt:46)
at kotlinx.coroutines.DispatchedTask.run(DispatchedTask.kt:106)
at kotlinx.coroutines.scheduling.CoroutineScheduler.runSafely(CoroutineScheduler.kt:570)
at kotlinx.coroutines.scheduling.CoroutineScheduler$Worker.executeTask(CoroutineScheduler.kt:750)
at kotlinx.coroutines.scheduling.CoroutineScheduler$Worker.runWorker(CoroutineScheduler.kt:677)
at kotlinx.coroutines.scheduling.CoroutineScheduler$Worker.run(CoroutineScheduler.kt:664)
Suppressed: kotlin.UninitializedPropertyAccessException: lateinit property factory has not been initialized
at xyz.cssxsh.mirai.hibernate.MiraiHibernateUtilsKt.getFactory(MiraiHibernateUtils.kt:74)
at xyz.cssxsh.mirai.hibernate.MiraiHibernateRecorder.merge(MiraiHibernateRecorder.kt:30)
at xyz.cssxsh.mirai.hibernate.MiraiHibernateRecorder.access$merge(MiraiHibernateRecorder.kt:28)
at xyz.cssxsh.mirai.hibernate.MiraiHibernateRecorder$record$11.invokeSuspend(MiraiHibernateRecorder.kt:152)
at kotlin.coroutines.jvm.internal.BaseContinuationImpl.resumeWith(ContinuationImpl.kt:33)
... 5 more
Suppressed: kotlinx.coroutines.DiagnosticCoroutineContextException: [net.mamoe.mirai.event.SimpleListenerHost$special$$inlined$CoroutineExceptionHandler$1@58551237, StandaloneCoroutine{Cancelling}@6e8d0dfb, Dispatchers.Default]
Caused by: java.lang.NoClassDefFoundError: jakarta/persistence/PersistenceException
at xyz.cssxsh.mirai.hibernate.MiraiHibernateRecorder.handleException(MiraiHibernateRecorder.kt:545)
at net.mamoe.mirai.event.SimpleListenerHost$special$$inlined$CoroutineExceptionHandler$1.handleException(CoroutineExceptionHandler.kt:111)
at kotlinx.coroutines.CoroutineExceptionHandlerKt.handleCoroutineException(CoroutineExceptionHandler.kt:25)
... 12 more
Caused by: java.lang.ClassNotFoundException: jakarta.persistence.PersistenceException
at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:641)
at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:188)
at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:520)
... 15 more
Exception in thread "DefaultDispatcher-worker-7" java.lang.RuntimeException: Exception while trying to handle coroutine exception
at kotlinx.coroutines.CoroutineExceptionHandlerKt.handlerException(CoroutineExceptionHandler.kt:38)
at kotlinx.coroutines.CoroutineExceptionHandlerKt.handleCoroutineException(CoroutineExceptionHandler.kt:29)
at kotlinx.coroutines.StandaloneCoroutine.handleJobException(Builders.common.kt:196)
at kotlinx.coroutines.JobSupport.finalizeFinishingState(JobSupport.kt:229)
at kotlinx.coroutines.JobSupport.tryMakeCompletingSlowPath(JobSupport.kt:906)
at kotlinx.coroutines.JobSupport.tryMakeCompleting(JobSupport.kt:863)
at kotlinx.coroutines.JobSupport.makeCompletingOnce$kotlinx_coroutines_core(JobSupport.kt:828)
at kotlinx.coroutines.AbstractCoroutine.resumeWith(AbstractCoroutine.kt:100)
at kotlin.coroutines.jvm.internal.BaseContinuationImpl.resumeWith(ContinuationImpl.kt:46)
at kotlinx.coroutines.DispatchedTask.run(DispatchedTask.kt:106)
at kotlinx.coroutines.scheduling.CoroutineScheduler.runSafely(CoroutineScheduler.kt:570)
at kotlinx.coroutines.scheduling.CoroutineScheduler$Worker.executeTask(CoroutineScheduler.kt:750)
at kotlinx.coroutines.scheduling.CoroutineScheduler$Worker.runWorker(CoroutineScheduler.kt:677)
at kotlinx.coroutines.scheduling.CoroutineScheduler$Worker.run(CoroutineScheduler.kt:664)
Suppressed: kotlin.UninitializedPropertyAccessException: lateinit property factory has not been initialized
at xyz.cssxsh.mirai.hibernate.MiraiHibernateUtilsKt.getFactory(MiraiHibernateUtils.kt:74)
at xyz.cssxsh.mirai.hibernate.MiraiHibernateRecorder.merge(MiraiHibernateRecorder.kt:30)
at xyz.cssxsh.mirai.hibernate.MiraiHibernateRecorder.access$merge(MiraiHibernateRecorder.kt:28)
at xyz.cssxsh.mirai.hibernate.MiraiHibernateRecorder$record$1.invokeSuspend(MiraiHibernateRecorder.kt:44)
at kotlin.coroutines.jvm.internal.BaseContinuationImpl.resumeWith(ContinuationImpl.kt:33)
... 5 more
Suppressed: kotlinx.coroutines.DiagnosticCoroutineContextException: [net.mamoe.mirai.event.SimpleListenerHost$special$$inlined$CoroutineExceptionHandler$1@58551237, StandaloneCoroutine{Cancelling}@2e304ce3, Dispatchers.Default]
Caused by: java.lang.NoClassDefFoundError: jakarta/persistence/PersistenceException
at xyz.cssxsh.mirai.hibernate.MiraiHibernateRecorder.handleException(MiraiHibernateRecorder.kt:545)
at net.mamoe.mirai.event.SimpleListenerHost$special$$inlined$CoroutineExceptionHandler$1.handleException(CoroutineExceptionHandler.kt:111)
at kotlinx.coroutines.CoroutineExceptionHandlerKt.handleCoroutineException(CoroutineExceptionHandler.kt:25)
... 12 more
Caused by: java.lang.ClassNotFoundException: jakarta.persistence.PersistenceException
... 15 more
2023-11-28 19:43:16.075 [SpringApplicationShutdownHook] INFO o.s.orm.jpa.LocalContainerEntityManagerFactoryBean - Closing JPA EntityManagerFactory for persistence unit 'default'

[MrXiaoM]

@nannanness

Caused by: java.lang.ClassNotFoundException: jakarta.persistence.PersistenceException

明显运行时环境缺东西了