英文:
JAVA Discord Bot (java.lang.ArrayIndexOutOfBoundsException)
问题
我有一个奇怪的问题。因为我刚开始编码,可能我太笨了,我不知道该如何解决这个问题,所以问题是,我有两个命令用于我的Discord机器人,分别是永久禁言和临时禁言。我想做一些类似于占位符的东西,以便在config.yml中使用,因为这样会更加灵活,但是当我使用args[]时,我遇到了一个奇怪的问题,下面是问题的描述:
[JDA MainWS-ReadThread] ERROR net.dv8tion.jda.api.JDA - 一个事件监听器发生了未捕获的异常
java.lang.ArrayIndexOutOfBoundsException: 长度为2的数组索引2超出了范围
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)
此外,这是我代码中涉及到的部分:
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();
}
}
}
}
}
英文:
I have a weird problem. Since I'm new in coding, maybe I am dumb and I don't know how can I resolve this issue, so the issue is, I have 2 commands for my discord bot, permanent mute, and temporary mute. I want to make something like a placeholder to be used in config.yml since it will be more configurable, but when I use args[], I have a weird problem, here is it :
[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)
ALSO, here is my code at those lines :
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();
}
}
}
}
}
答案1
得分: 0
你确定代码中这一行没有问题吗:
String TempMuted1 = ConfigManager.INSTANCE.getSetting("TempMutedMSG")
.replaceAll("%tempmutedusr", String.valueOf(event.getGuild().getMemberById(args[1].replaceAll("[^\\d]+", ""))))
.replaceAll("%tempmutetime", args[2]);
args[1] 和 args[2] 是正确的吗?
如果长度为2,那么 args[2] 就会寻找第3个值,而你可能没有它...
进一步了解数组的长度和索引如何工作可能会有帮助。
英文:
Are you sure that this line from your code:
String TempMuted1 = ConfigManager.INSTANCE.getSetting("TempMutedMSG")
.replaceAll("%tempmutedusr", String.valueOf(event.getGuild().getMemberById(args[1].replaceAll("[^\\d]+", ""))))
.replaceAll("%tempmutetime", args[2]);
args[1] and args[2] is correct?
If the length is 2, Then args[2] is looking for the 3rd value and you might not have it...
Have a further look on how length and index works for arrays.
答案2
得分: 0
问题在于你正试图从args[2]获取一个元素,而在下面的代码中,数组可能只包含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]);
需要注意的是,在Java中,数组是基于零的,索引从0开始到长度-1结束。
你可以将这段代码放在if条件语句内部:
else if (args.length == 3) {
String TempMuted1 = ConfigManager.INSTANCE.getSetting("TempMutedMSG")
.replaceAll("%tempmutedusr", String.valueOf(event.getGuild().getMemberById(args[1].replaceAll("[^\\d]+", ""))))
.replaceAll("%tempmutetime", args[2]);
// 你的代码
}
英文:
the problem is you are trying to get an element from args[2], which may the array only contains 2 elements (length 2) in the following code:
String TempMuted1 = ConfigManager.INSTANCE.getSetting("TempMutedMSG")
.replaceAll("%tempmutedusr", String.valueOf(event.getGuild().getMemberById(args[1].replaceAll("[^\\d]+", ""))))
.replaceAll("%tempmutetime", args[2]);
Note that in java arrays are zero-based and indexes start from 0 to length - 1.
You can take this code inside the if-condition:
else if (args.length == 3) {
String TempMuted1 = ConfigManager.INSTANCE.getSetting("TempMutedMSG")
.replaceAll("%tempmutedusr", String.valueOf(event.getGuild().getMemberById(args[1].replaceAll("[^\\d]+", ""))))
.replaceAll("%tempmutetime", args[2]);
// your code
}
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