如何在Spigot插件中使用discord4j。

huangapple
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英文:

How to use discord4j in a spigot plugin

问题

这是我翻译好的代码部分：

  1. package nz.laspruca.tcplugin.util;
  3. import discord4j.core.DiscordClient;
  4. import discord4j.core.GatewayDiscordClient;
  5. import discord4j.core.object.entity.Member;
  7. import java.util.List;
  8. import java.util.Objects;
  9. import java.util.stream.Collectors;
  11. import static org.qrl.tcplugin.TCPlugin.*;
  13. public class Discord {
  14.     public GatewayDiscordClient gateway;
  15.     private boolean goBrr = true;
  17.     public Discord(String token) {
  18.         DiscordClient client = DiscordClient.builder(token).build();
  19.         gateway = client.login().block();
  20.         if (gateway == null) {
  21.             logger.warning("Unable to connect to discord, oh well");
  22.             goBrr = false;
  23.         }
  24.     }
  26.     public void exitDiscord() {
  27.         if (goBrr) {
  28.             gateway.logout();
  29.         }
  30.     }
  32.     public boolean logedIn() {
  33.         return this.goBrr;
  34.     }
  36.     public List<String> getMembers() throws IllegalStateException {
  37.         if (goBrr)
  38.             return Objects.requireNonNull(Objects.requireNonNull(gateway
  39.                     .getGuilds()
  40.                     .collect(Collectors.toList())
  41.                     .block())
  42.                     .get(0)
  43.                     .getMembers()
  44.                     .collect(Collectors.toList())
  45.                     .block())
  46.                     .stream()
  47.                     .map(Member::getDisplayName)
  48.                     .collect(Collectors.toList());
  49.         else
  50.             throw new IllegalStateException("No valid connection to discord");
  51.     }
  52. }

请注意，代码中的部分符号（如&quot;）在翻译后已被正确处理。如果需要进一步帮助，请随时提问。

英文:

I am making a plugin for a friends minecraft server, they also have a discord server for this server. I am trying to add some integrations between the discord server and the plugin using discord4j. The plugin compiles fine, when I try to load the plugin, I get one of two exceptions:

  1. The first time I load the plugin
  1. java.lang.NoSuchMethodError: &#39;boolean io.netty.handler.ssl.SslProvider.isAlpnSupported(io.netty.handler.ssl.SslProvider)&#39;
  2. at reactor.netty.http.client.HttpClientSecure.&lt;clinit&gt;(HttpClientSecure.java:79) ~[?:?]
  3. at reactor.netty.http.client.HttpClient.secure(HttpClient.java:1073) ~[?:?]
  4. at discord4j.common.ReactorResources.lambda$static$0(ReactorResources.java:41) ~[?:?]
  5. at discord4j.common.ReactorResources.&lt;init&gt;(ReactorResources.java:54) ~[?:?]
  6. at discord4j.rest.RestClientBuilder.initReactorResources(RestClientBuilder.java:245) ~[?:?]
  7. at discord4j.rest.RestClientBuilder.build(RestClientBuilder.java:226) ~[?:?]
  8. at discord4j.core.DiscordClientBuilder.build(DiscordClientBuilder.java:85) ~[?:?]
  9. at discord4j.core.DiscordClientBuilder.build(DiscordClientBuilder.java:73) ~[?:?]
  10. at nz.laspruca.tcplugin.util.Discord.&lt;init&gt;(Discord.java:18) ~[?:?]
  11. at nz.laspruca.tcplugin.Plugin.onEnable(Plugin.java:14) ~[?:?]
  12. at org.qrl.tcplugin.TCPlugin.onEnable(TCPlugin.java:18) ~[?:?]
  13. at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:263) ~[spigot-1.16.3.jar:git-Spigot-57bbdd8-55a78ff]
  14. at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:351) ~[spigot-1.16.3.jar:git-Spigot-57bbdd8-55a78ff]
  15. at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:480) ~[spigot-1.16.3.jar:git-Spigot-57bbdd8-55a78ff]
  16. at org.bukkit.craftbukkit.v1_16_R2.CraftServer.enablePlugin(CraftServer.java:494) ~[spigot-1.16.3.jar:git-Spigot-57bbdd8-55a78ff]
  17. at org.bukkit.craftbukkit.v1_16_R2.CraftServer.enablePlugins(CraftServer.java:408) ~[spigot-1.16.3.jar:git-Spigot-57bbdd8-55a78ff]
  18. at net.minecraft.server.v1_16_R2.MinecraftServer.loadWorld(MinecraftServer.java:435) ~[spigot-1.16.3.jar:git-Spigot-57bbdd8-55a78ff]
  19. at net.minecraft.server.v1_16_R2.DedicatedServer.init(DedicatedServer.java:216) ~[spigot-1.16.3.jar:git-Spigot-57bbdd8-55a78ff]
  20. at net.minecraft.server.v1_16_R2.MinecraftServer.w(MinecraftServer.java:808) ~[spigot-1.16.3.jar:git-Spigot-57bbdd8-55a78ff]
  21. at net.minecraft.server.v1_16_R2.MinecraftServer.lambda$0(MinecraftServer.java:164) ~[spigot-1.16.3.jar:git-Spigot-57bbdd8-55a78ff]
  22. at java.lang.Thread.run(Thread.java:834) [?:?]
  1. When I reload the plugin
  1. java.lang.ExceptionInInitializerError: null
  2. at reactor.netty.http.client.HttpClient.followRedirect(HttpClient.java:870) ~[?:?]
  3. at reactor.netty.http.client.HttpClient.followRedirect(HttpClient.java:806) ~[?:?]
  4. at discord4j.common.ReactorResources.lambda$static$0(ReactorResources.java:41) ~[?:?]
  5. at discord4j.common.ReactorResources.&lt;init&gt;(ReactorResources.java:54) ~[?:?]
  6. at discord4j.rest.RestClientBuilder.initReactorResources(RestClientBuilder.java:245) ~[?:?]
  7. at discord4j.rest.RestClientBuilder.build(RestClientBuilder.java:226) ~[?:?]
  8. at discord4j.core.DiscordClientBuilder.build(DiscordClientBuilder.java:85) ~[?:?]
  9. at discord4j.core.DiscordClientBuilder.build(DiscordClientBuilder.java:73) ~[?:?]
  10. at nz.laspruca.tcplugin.util.Discord.&lt;init&gt;(Discord.java:18) ~[?:?]
  11. at nz.laspruca.tcplugin.Plugin.onEnable(Plugin.java:14) ~[?:?]
  12. at org.qrl.tcplugin.TCPlugin.onEnable(TCPlugin.java:18) ~[?:?]
  13. at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:263) ~[spigot-1.16.3.jar:git-Spigot-57bbdd8-55a78ff]
  14. at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:351) ~[spigot-1.16.3.jar:git-Spigot-57bbdd8-55a78ff]
  15. at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:480) ~[spigot-1.16.3.jar:git-Spigot-57bbdd8-55a78ff]
  16. at org.bukkit.craftbukkit.v1_16_R2.CraftServer.enablePlugin(CraftServer.java:494) ~[spigot-1.16.3.jar:git-Spigot-57bbdd8-55a78ff]
  17. at org.bukkit.craftbukkit.v1_16_R2.CraftServer.enablePlugins(CraftServer.java:408) ~[spigot-1.16.3.jar:git-Spigot-57bbdd8-55a78ff]
  18. at org.bukkit.craftbukkit.v1_16_R2.CraftServer.reload(CraftServer.java:876) ~[spigot-1.16.3.jar:git-Spigot-57bbdd8-55a78ff]
  19. at org.bukkit.Bukkit.reload(Bukkit.java:642) ~[spigot-1.16.3.jar:git-Spigot-57bbdd8-55a78ff]
  20. at org.bukkit.command.defaults.ReloadCommand.execute(ReloadCommand.java:27) ~[spigot-1.16.3.jar:git-Spigot-57bbdd8-55a78ff]
  21. at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:149) ~[spigot-1.16.3.jar:git-Spigot-57bbdd8-55a78ff]
  22. at org.bukkit.craftbukkit.v1_16_R2.CraftServer.dispatchCommand(CraftServer.java:758) ~[spigot-1.16.3.jar:git-Spigot-57bbdd8-55a78ff]
  23. at org.bukkit.craftbukkit.v1_16_R2.CraftServer.dispatchServerCommand(CraftServer.java:743) ~[spigot-1.16.3.jar:git-Spigot-57bbdd8-55a78ff]
  24. at net.minecraft.server.v1_16_R2.DedicatedServer.handleCommandQueue(DedicatedServer.java:381) ~[spigot-1.16.3.jar:git-Spigot-57bbdd8-55a78ff]
  25. at net.minecraft.server.v1_16_R2.DedicatedServer.b(DedicatedServer.java:350) ~[spigot-1.16.3.jar:git-Spigot-57bbdd8-55a78ff]
  26. at net.minecraft.server.v1_16_R2.MinecraftServer.a(MinecraftServer.java:1007) ~[spigot-1.16.3.jar:git-Spigot-57bbdd8-55a78ff]
  27. at net.minecraft.server.v1_16_R2.MinecraftServer.w(MinecraftServer.java:846) ~[spigot-1.16.3.jar:git-Spigot-57bbdd8-55a78ff]
  28. at net.minecraft.server.v1_16_R2.MinecraftServer.lambda$0(MinecraftServer.java:164) ~[spigot-1.16.3.jar:git-Spigot-57bbdd8-55a78ff]
  29. at java.lang.Thread.run(Thread.java:834) [?:?]
  30. Caused by: java.lang.IllegalArgumentException: &#39;httpClientConf&#39; is already in use
  31. at io.netty.util.ConstantPool.createOrThrow(ConstantPool.java:113) ~[spigot-1.16.3.jar:git-Spigot-57bbdd8-55a78ff]
  32. at io.netty.util.ConstantPool.newInstance(ConstantPool.java:95) ~[spigot-1.16.3.jar:git-Spigot-57bbdd8-55a78ff]
  33. at io.netty.util.AttributeKey.newInstance(AttributeKey.java:55) ~[spigot-1.16.3.jar:git-Spigot-57bbdd8-55a78ff]
  34. at reactor.netty.http.client.HttpClientConfiguration.&lt;clinit&gt;(HttpClientConfiguration.java:51) ~[?:?]
  35. ... 28 more

Here is my pom.xml:

  1. &lt;?xml version=&quot;1.0&quot; encoding=&quot;UTF-8&quot;?&gt;
  2. &lt;project xmlns=&quot;http://maven.apache.org/POM/4.0.0&quot;
  3.          xmlns:xsi=&quot;http://www.w3.org/2001/XMLSchema-instance&quot;
  4.          xsi:schemaLocation=&quot;http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd&quot;&gt;
  5.     &lt;modelVersion&gt;4.0.0&lt;/modelVersion&gt;
  7.     &lt;groupId&gt;org.qrl&lt;/groupId&gt;
  8.     &lt;artifactId&gt;tcplugin&lt;/artifactId&gt;
  9.     &lt;version&gt;1.0-SNAPSHOT&lt;/version&gt;
  10.     &lt;packaging&gt;jar&lt;/packaging&gt;
  12.     &lt;name&gt;TCPlugin&lt;/name&gt;
  14.     &lt;description&gt;The offical TCPlugin&lt;/description&gt;
  15.     &lt;properties&gt;
  16.         &lt;java.version&gt;1.8&lt;/java.version&gt;
  17.         &lt;project.build.sourceEncoding&gt;UTF-8&lt;/project.build.sourceEncoding&gt;
  18.     &lt;/properties&gt;
  19.     &lt;url&gt;qrl.nz&lt;/url&gt;
  21.     &lt;build&gt;
  22.         &lt;plugins&gt;
  23.             &lt;plugin&gt;
  24.                 &lt;groupId&gt;org.apache.maven.plugins&lt;/groupId&gt;
  25.                 &lt;artifactId&gt;maven-compiler-plugin&lt;/artifactId&gt;
  26.                 &lt;version&gt;3.8.1&lt;/version&gt;
  27.                 &lt;configuration&gt;
  28.                     &lt;source&gt;${java.version}&lt;/source&gt;
  29.                     &lt;target&gt;${java.version}&lt;/target&gt;
  30.                 &lt;/configuration&gt;
  31.             &lt;/plugin&gt;
  32.             &lt;plugin&gt;
  33.                 &lt;groupId&gt;org.apache.maven.plugins&lt;/groupId&gt;
  34.                 &lt;artifactId&gt;maven-shade-plugin&lt;/artifactId&gt;
  35.                 &lt;version&gt;3.2.4&lt;/version&gt;
  36.                 &lt;configuration&gt;
  37.                     &lt;filters&gt;
  38.                         &lt;filter&gt;
  39.                             &lt;artifact&gt;*:*&lt;/artifact&gt;
  40.                             &lt;excludes&gt;
  41.                                 &lt;exclude&gt;module-info.class&lt;/exclude&gt;
  42.                                 &lt;exclude&gt;META-INF/*.SF&lt;/exclude&gt;
  43.                                 &lt;exclude&gt;META-INF/*.DSA&lt;/exclude&gt;
  44.                                 &lt;exclude&gt;META-INF/*.RSA&lt;/exclude&gt;
  45.                             &lt;/excludes&gt;
  46.                         &lt;/filter&gt;
  47.                     &lt;/filters&gt;
  48.                 &lt;/configuration&gt;
  49.                 &lt;executions&gt;
  50.                     &lt;execution&gt;
  51.                         &lt;phase&gt;package&lt;/phase&gt;
  52.                         &lt;goals&gt;
  53.                             &lt;goal&gt;shade&lt;/goal&gt;
  54.                         &lt;/goals&gt;
  55.                     &lt;/execution&gt;
  56.                 &lt;/executions&gt;
  57.             &lt;/plugin&gt;
  58.         &lt;/plugins&gt;
  59.         &lt;resources&gt;
  60.             &lt;resource&gt;
  61.                 &lt;directory&gt;src/main/resources&lt;/directory&gt;
  62.                 &lt;filtering&gt;true&lt;/filtering&gt;
  63.             &lt;/resource&gt;
  64.         &lt;/resources&gt;
  65.     &lt;/build&gt;
  67.     &lt;repositories&gt;
  68.         &lt;repository&gt;
  69.             &lt;id&gt;jitpack&lt;/id&gt;
  70.             &lt;url&gt;https://jitpack.io&lt;/url&gt;
  71.         &lt;/repository&gt;
  72.         
  73.         &lt;repository&gt;
  74.             &lt;snapshots&gt;
  75.                 &lt;enabled&gt;false&lt;/enabled&gt;
  76.             &lt;/snapshots&gt;
  77.             &lt;id&gt;central&lt;/id&gt;
  78.             &lt;name&gt;bintray&lt;/name&gt;
  79.             &lt;url&gt;https://jcenter.bintray.com&lt;/url&gt;
  80.         &lt;/repository&gt;
  82.         &lt;repository&gt;
  83.             &lt;id&gt;spigotmc-repo&lt;/id&gt;
  84.             &lt;url&gt;https://hub.spigotmc.org/nexus/content/repositories/snapshots/&lt;/url&gt;
  85.         &lt;/repository&gt;
  87.         &lt;repository&gt;
  88.             &lt;id&gt;sonatype&lt;/id&gt;
  89.             &lt;url&gt;https://oss.sonatype.org/content/groups/public/&lt;/url&gt;
  90.         &lt;/repository&gt;
  91.     &lt;/repositories&gt;
  93.     &lt;dependencies&gt;
  94.         &lt;dependency&gt;
  95.             &lt;groupId&gt;org.spigotmc&lt;/groupId&gt;
  96.             &lt;artifactId&gt;spigot-api&lt;/artifactId&gt;
  97.             &lt;version&gt;1.16.3-R0.1-SNAPSHOT&lt;/version&gt;
  98.             &lt;scope&gt;provided&lt;/scope&gt;
  99.         &lt;/dependency&gt;
  101.         &lt;dependency&gt;
  102.             &lt;groupId&gt;com.discord4j&lt;/groupId&gt;
  103.             &lt;artifactId&gt;discord4j-core&lt;/artifactId&gt;
  104.             &lt;version&gt;3.1.1&lt;/version&gt;
  105.         &lt;/dependency&gt;
  107.         &lt;dependency&gt;
  108.             &lt;groupId&gt;com.github.DevLeoko&lt;/groupId&gt;
  109.             &lt;artifactId&gt;AdvancedBan&lt;/artifactId&gt;
  110.             &lt;version&gt;2.2.1&lt;/version&gt;
  111.         &lt;/dependency&gt;
  112.     &lt;/dependencies&gt;
  113. &lt;/project&gt;

And the class responsable for the discord interactions

  1. package nz.laspruca.tcplugin.util;
  3. import discord4j.core.DiscordClient;
  4. import discord4j.core.GatewayDiscordClient;
  5. import discord4j.core.object.entity.Member;
  7. import java.util.List;
  8. import java.util.Objects;
  9. import java.util.stream.Collectors;
  11. import static org.qrl.tcplugin.TCPlugin.*;
  13. public class Discord {
  14. 	public GatewayDiscordClient gateway;
  15. 	private boolean goBrr = true;
  17. 	public Discord(String token) {
  18. 		DiscordClient client = DiscordClient.builder(token).build();
  19. 		gateway = client.login().block();
  20. 		if (gateway == null) {
  21. 			logger.warning(&quot;Unable to connect to discord, oh well&quot;);
  22. 			goBrr = false;
  23. 		}
  24. 	}
  26. 	public void exitDiscord() {
  27. 		if (goBrr) {
  28. 			gateway.logout();
  29. 		}
  30. 	}
  32. 	public boolean logedIn() {
  33. 		return this.goBrr;
  34. 	}
  36. 	public List&lt;String&gt; getMembers() throws IllegalStateException {
  37. 		if (goBrr)
  38. 			return Objects.requireNonNull(Objects.requireNonNull(gateway
  39. 					.getGuilds()
  40. 					.collect(Collectors.toList())
  41. 					.block())
  42. 					.get(0)
  43. 					.getMembers()
  44. 					.collect(Collectors.toList())
  45. 					.block())
  46. 					.stream()
  47. 					.map(Member::getDisplayName)
  48. 					.collect(Collectors.toList());
  49. 		else
  50. 			throw new IllegalStateException(&quot;No valid connection to discord&quot;);
  51. 	}
  52. }

答案1

得分: 2

以下是翻译好的内容：

你现在可能已经解决了这个问题，但对其他人可能会有帮助。

我花了一些时间，但这对我有效。似乎 spigot 使用了 netty 的某种版本冲突。 （猜测）

注意 <relocations> 标签。

  1. <plugin>
  2.     <groupId>org.apache.maven.plugins</groupId>
  3.     <artifactId>maven-shade-plugin</artifactId>
  4.     <version>3.2.4</version>
  5.     <executions>
  6.         <execution>
  7.             <phase>package</phase>
  8.             <goals>
  9.                 <goal>shade</goal>
  10.             </goals>
  11.             <configuration>
  12.                 <transformers>
  13.                     <transformer implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer">
  14.                         <mainClass>你的主类</mainClass>
  15.                     </transformer>
  16.                 </transformers>
  17.                 <filters>
  18.                     <filter>
  19.                         <artifact>*:*</artifact>
  20.                         <excludes>
  21.                             <exclude>META-INF/maven/**</exclude>
  22.                             <exclude>META-INF/*.SF</exclude>
  23.                             <exclude>META-INF/*.DSA</exclude>
  24.                             <exclude>META-INF/*.RSA</exclude>
  25.                         </excludes>
  26.                     </filter>
  27.                 </filters>
  28.                 <relocations>
  29.                     <relocation>
  30.                         <pattern>io</pattern>
  31.                         <shadedPattern>io.netty</shadedPattern>
  32.                         <includes>
  33.                             <include>io.netty.*</include>
  34.                         </includes>
  35.                     </relocation>
  36.                 </relocations>
  37.             </configuration>
  38.         </execution>
  39.     </executions>
  40. </plugin>
英文:

You might have solved the issue by now, but it might come in handy for others.

It took me a while, but this works for me. It seems that there seems to be some kind of version conflict with netty that spigot uses. (a guess)

Mind the &lt;relocations&gt; tag.

  1. &lt;plugin&gt;
  2. &lt;groupId&gt;org.apache.maven.plugins&lt;/groupId&gt;
  3. &lt;artifactId&gt;maven-shade-plugin&lt;/artifactId&gt;
  4. &lt;version&gt;3.2.4&lt;/version&gt;
  5. &lt;executions&gt;
  6. &lt;execution&gt;
  7. &lt;phase&gt;package&lt;/phase&gt;
  8. &lt;goals&gt;
  9. &lt;goal&gt;shade&lt;/goal&gt;
  10. &lt;/goals&gt;
  11. &lt;configuration&gt;
  12. &lt;transformers&gt;
  13. &lt;transformer implementation=&quot;org.apache.maven.plugins.shade.resource.ManifestResourceTransformer&quot;&gt;
  14. &lt;mainClass&gt;your.main.class&lt;/mainClass&gt;
  15. &lt;/transformer&gt;
  16. &lt;/transformers&gt;
  17. &lt;filters&gt;
  18. &lt;filter&gt;
  19. &lt;artifact&gt;*:*&lt;/artifact&gt;
  20. &lt;excludes&gt;
  21. &lt;exclude&gt;META-INF/maven/**&lt;/exclude&gt;
  22. &lt;exclude&gt;META-INF/*.SF&lt;/exclude&gt;
  23. &lt;exclude&gt;META-INF/*.DSA&lt;/exclude&gt;
  24. &lt;exclude&gt;META-INF/*.RSA&lt;/exclude&gt;
  25. &lt;/excludes&gt;
  26. &lt;/filter&gt;
  27. &lt;/filters&gt;
  28. &lt;relocations&gt;
  29. &lt;relocation&gt;
  30. &lt;pattern&gt;io&lt;/pattern&gt;
  31. &lt;shadedPattern&gt;io.netty&lt;/shadedPattern&gt;
  32. &lt;includes&gt;
  33. &lt;include&gt;io.netty.*&lt;/include&gt;
  34. &lt;/includes&gt;
  35. &lt;/relocation&gt;
  36. &lt;/relocations&gt;
  37. &lt;/configuration&gt;
  38. &lt;/execution&gt;
  39. &lt;/executions&gt;
  40. &lt;/plugin&gt;

huangapple
  • 本文由 发表于 2020年10月26日 03:55:31
  • 转载请务必保留本文链接：https://go.coder-hub.com/64528129.html
  • discord4j
  • java
  • minecraft
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