如何解决JAVA Discord Botjava.lang.ArrayIndexOutOfBoundsException
我有一个奇怪的问题。由于我是编码新手,也许我很笨,我不知道该如何解决这个问题,所以问题是,我有2个命令用于我的不和谐机器人,永久静音和临时静音。我想在config.yml中使用类似占位符的东西,因为它将更加可配置,但是当我使用args []时,我遇到了一个奇怪的问题,就是这样:
[JDA MainWS-ReadThread] ERROR net.dv8tion.jda.api.JDA - One of the EventListeners had an uncaught exception
java.lang.ArrayIndexOutOfBoundsException: Index 2 out of bounds for length 2
at me.trashlord.bot.events.TempMuteCommand.onGuildMessageReceived(TempMuteCommand.java:34)
at net.dv8tion.jda.api.hooks.ListenerAdapter.onEvent(ListenerAdapter.java:396)
at net.dv8tion.jda.api.hooks.InterfacedEventManager.handle(InterfacedEventManager.java:96)
at net.dv8tion.jda.internal.hooks.EventManagerProxy.handleInternally(EventManagerProxy.java:82)
at net.dv8tion.jda.internal.hooks.EventManagerProxy.handle(EventManagerProxy.java:69)
at net.dv8tion.jda.internal.JDAImpl.handleEvent(JDAImpl.java:166)
at net.dv8tion.jda.internal.handle.MessageCreateHandler.handleInternally(MessageCreateHandler.java:97)
at net.dv8tion.jda.internal.handle.SocketHandler.handle(SocketHandler.java:36)
at net.dv8tion.jda.internal.requests.WebSocketClient.onDispatch(WebSocketClient.java:921)
at net.dv8tion.jda.internal.requests.WebSocketClient.onEvent(WebSocketClient.java:808)
at net.dv8tion.jda.internal.requests.WebSocketClient.handleEvent(WebSocketClient.java:786)
at net.dv8tion.jda.internal.requests.WebSocketClient.onBinaryMessage(WebSocketClient.java:959)
at com.neovisionaries.ws.client.ListenerManager.callOnBinaryMessage(ListenerManager.java:385)
at com.neovisionaries.ws.client.ReadingThread.callOnBinaryMessage(ReadingThread.java:276)
at com.neovisionaries.ws.client.ReadingThread.handleBinaryFrame(ReadingThread.java:996)
at com.neovisionaries.ws.client.ReadingThread.handleFrame(ReadingThread.java:755)
at com.neovisionaries.ws.client.ReadingThread.main(ReadingThread.java:108)
at com.neovisionaries.ws.client.ReadingThread.runMain(ReadingThread.java:64)
at com.neovisionaries.ws.client.WebSocketThread.run(WebSocketThread.java:45)
另外,这是我在那几行的代码:
String[] args = event.getMessage().getContentRaw().split("\\s+");
String MutedMessage = ConfigManager.INSTANCE.getSetting("MutedMessage")
.replaceAll("%muteduser",args[1]);
String UnMutedMessage = ConfigManager.INSTANCE.getSetting("UnMutedMessage")
.replaceAll("%unmuteduser",args[1]);
String TempMuted1 = ConfigManager.INSTANCE.getSetting("TempMutedMSG")
.replaceAll("%tempmutedusr",String.valueOf(event.getGuild().getMemberById(args[1].replaceAll("[^\\d]+",""))))
.replaceAll("%tempmutetime",args[2]);
if (args[0].equalsIgnoreCase(Commands.prefix + "mute")) {
if (Objects.requireNonNull(event.getMember()).hasPermission(Permission.MESSAGE_MANAGE)) {
if (args.length == 2) {
Member member = event.getGuild().getMemberById(args[1].replaceAll("[^\\d]+",""));
Role role = event.getGuild().getRoleById(MutedRole);
if (!Objects.requireNonNull(member).getRoles().contains(role)) {
// Mute user
event.getChannel().sendMessage(MutedMessage).queue();
event.getGuild().addRoleToMember(member,Objects.requireNonNull(role)).complete();
} else {
// Unmute user
event.getChannel().sendMessage(UnMutedMessage).queue();
event.getGuild().removeRoleFromMember(member,Objects.requireNonNull(role)).complete();
}
} else if (args.length == 3) {
Member member = event.getGuild().getMemberById(args[1].replaceAll("[^\\d]+",""));
Role role = event.getGuild().getRoleById(MutedRole);
//event.getChannel().sendMessage(TempMuted1 + " " + args[1] + " " + TempMuted2 + " " + args[2] + " " + TempMuted3).queue();
event.getChannel().sendMessage(TempMuted1).queue();
event.getGuild().addRoleToMember(Objects.requireNonNull(member),Objects.requireNonNull(role))
.complete();
// Unmute after a few seconds
new java.util.Timer().schedule(
new java.util.TimerTask() {
@Override
public void run() {
event.getChannel().sendMessage(TempUnMuted + " " + args[1] + ".").queue();
event.getGuild().removeRoleFromMember(member,role).complete();
}
},TimeUnit.MINUTES.toMillis(Integer.parseInt(args[2]))
);
} else {
event.getChannel().sendMessage("Incorrect syntax. Use `~mute [user mention] [time {optional}]`")
.queue();
}
}
}
}
}
解决方法
您确定代码中的这一行是
history
args [1]和args [2]是正确的吗?
如果长度为2,则args [2]正在寻找第三个值,您可能没有它。 进一步了解数组的长度和索引如何工作。
,问题是您正试图从args [2]中获取一个元素,该数组可能在以下代码中仅包含2个元素(长度为2):
String TempMuted1 = ConfigManager.INSTANCE.getSetting("TempMutedMSG")
.replaceAll("%tempmutedusr",String.valueOf(event.getGuild().getMemberById(args[1].replaceAll("[^\\d]+",""))))
.replaceAll("%tempmutetime",args[2]);
请注意,在Java数组中,数组从零开始,索引从0到长度-1开始。 您可以在if-condition中使用此代码:
else if (args.length == 3) {
String TempMuted1 = ConfigManager.INSTANCE.getSetting("TempMutedMSG")
.replaceAll("%tempmutedusr",""))))
.replaceAll("%tempmutetime",args[2]);
// your code
}
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