连接 mongodb 到我的世界插件
Connect mongodb to minecraft plugin
我正在为我的 minecraft 服务器制作一个 minecraft 插件，但出现错误，我找不到解决方案。上下文：我想存储 level/xp/rank 等播放器的数据......你能帮我做这部分插件吗，我是 Java.[=16= 的初学者]
这是我的代码：
import com.mongodb.MongoClient;
import com.mongodb.client.MongoClients;
import com.mongodb.client.MongoCollection;
import com.mongodb.client.MongoDatabase;
import me.codexis.velocitylobbygeneral.commands.Lobby;
import me.codexis.velocitylobbygeneral.commands.MoveBot;
import me.codexis.velocitylobbygeneral.commands.Test;
import me.codexis.velocitylobbygeneral.event.*;
import org.bson.Document;
import org.bukkit.ChatColor;
import org.bukkit.plugin.java.JavaPlugin;
public final class VelocityLobbyGeneral extends JavaPlugin {
private static VelocityLobbyGeneral instance;
@Override
public void onEnable() {
setInstance(this);
// Listeners
getServer().getPluginManager().registerEvents(new OnJoinQuit(), this);
getServer().getPluginManager().registerEvents(new FormatChat(), this);
getServer().getPluginManager().registerEvents(new Scoreboard(), this);
// Channels
getServer().getMessenger().registerOutgoingPluginChannel(this, "BungeeCord");
// Commands
new Lobby();
new MoveBot();
new Test();
// Connection to database
MongoClient mongoClient = (MongoClient) MongoClients.create("mongodb+srv://myusername:@databasemc.ehssc.mongodb.net/VelocityMC?retryWrites=true&w=majority");
MongoDatabase mongoDatabase = mongoClient.getDatabase("VelocityMC");
MongoCollection<Document> mongoCollection = mongoDatabase.getCollection("Vide");
getLogger().info(ChatColor.GREEN + "Connected to Database");
getLogger().info("=============================================");
getLogger().info(" >>>> Velocity Lobby General Loaded <<<< ");
getLogger().info("=============================================");
}
@Override
public void onDisable() {
getLogger().info("===============================================");
getLogger().info(" >>>> Velocity Lobby General disabled <<<< ");
getLogger().info("===============================================");
}
public static VelocityLobbyGeneral getInstance(){
return instance;
}
private static void setInstance(VelocityLobbyGeneral instance){
velocityLobbyGeneral.instance = instance;
}
}
这是我的错误：
[12:32:49 WARN]: java.lang.NoClassDefFoundError: com/mongodb/client/MongoClients
[12:32:49 WARN]: at VelocityLobbyGeneral.jar//me.codexis.velocitylobbygeneral.VelocityLobbyGeneral.onEnable(VelocityLo
bbyGeneral.java:38)
[12:32:49 WARN]: at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:264)
[12:32:49 WARN]: at
org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:370)
[12:32:49 WARN]: at
org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:500)
[12:32:49 WARN]: at
org.bukkit.craftbukkit.v1_17_R1.CraftServer.enablePlugin(CraftServer.java:535)
[12:32:49 WARN]: at
org.bukkit.craftbukkit.v1_17_R1.CraftServer.enablePlugins(CraftServer.java:449)
[12:32:49 WARN]: at
org.bukkit.craftbukkit.v1_17_R1.CraftServer.reload(CraftServer.java:970)
[12:32:49 WARN]: at org.bukkit.Bukkit.reload(Bukkit.java:769)
[12:32:49 WARN]: at org.bukkit.command.defaults.ReloadCommand.execute(ReloadCommand.java:54)
[12:32:49 WARN]: at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:159)
[12:32:49 WARN]: at org.bukkit.craftbukkit.v1_17_R1.CraftServer.dispatchCommand(CraftServer.java:838)
[12:32:49 WARN]: at org.bukkit.craftbukkit.v1_17_R1.CraftServer.dispatchServerCommand(CraftServer.java:801)
[12:32:49 WARN]: at net.minecraft.server.dedicated.DedicatedServer.handleCommandQueue(DedicatedServer.java:518)
[12:32:49 WARN]: at net.minecraft.server.dedicated.DedicatedServer.b(DedicatedServer.java:480)
[12:32:49 WARN]: at net.minecraft.server.MinecraftServer.a(MinecraftServer.java:1475)
[12:32:49 WARN]: at net.minecraft.server.MinecraftServer.x(MinecraftServer.java:1274)
[12:32:49 WARN]: at net.minecraft.server.MinecraftServer.lambda$spin[=12=](MinecraftServer.java:319)
[12:32:49 WARN]: at java.base/java.lang.Thread.run(Thread.java:831)
[12:32:49 WARN]: Caused by: java.lang.ClassNotFoundException: com.mongodb.client.MongoClients
[12:32:49 WARN]: at org.bukkit.plugin.java.PluginClassLoader.loadClass0(PluginClassLoader.java:146)
[12:32:49 WARN]: at org.bukkit.plugin.java.PluginClassLoader.loadClass(PluginClassLoader.java:103)
[12:32:49 WARN]: at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:519)
[12:32:49 WARN]: ... 18 more
谁能帮帮我
Pom.xml :
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>me.codexisphantom</groupId>
<artifactId>VelocityLobby</artifactId>
<version>1.0</version>
<packaging>jar</packaging>
<name>VelocityLobby</name>
<description>Official VelocityMC Plugin</description>
<properties>
<java.version>1.8</java.version>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>
<url>www.velocity-net.com</url>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.8.1</version>
<configuration>
<source>${java.version}</source>
<target>${java.version}</target>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-shade-plugin</artifactId>
<version>3.2.4</version>
<executions>
<execution>
<phase>package</phase>
<goals>
<goal>shade</goal>
</goals>
<configuration>
<createDependencyReducedPom>false</createDependencyReducedPom>
</configuration>
</execution>
</executions>
</plugin>
</plugins>
<resources>
<resource>
<directory>src/main/resources</directory>
<filtering>true</filtering>
</resource>
</resources>
</build>
<repositories>
<repository>
<id>papermc-repo</id>
<url>https://papermc.io/repo/repository/maven-public/</url>
</repository>
<repository>
<id>sonatype</id>
<url>https://oss.sonatype.org/content/groups/public/</url>
</repository>
</repositories>
<dependencies>
<dependency>
<groupId>io.papermc.paper</groupId>
<artifactId>paper-api</artifactId>
<version>1.17.1-R0.1-SNAPSHOT</version>
<scope>provided</scope>
</dependency>
</dependencies>
Mongodb 依赖：
<dependency>
<groupId>org.mongodb</groupId>
<artifactId>mongo-java-driver</artifactId>
<version>3.12.10</version>
<scope>compile</scope>
</dependency>
已添加插件：
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-assembly-plugin</artifactId>
<executions>
<execution>
<phase>package</phase>
<goals>
<goal>single</goal>
</goals>
<configuration>
<descriptorRefs>
<descriptorRef>jar-with-dependencies</descriptorRef>
</descriptorRefs>
</configuration>
</execution>
</executions>
</plugin>
在您的 Maven 配置中，您正在导入 MongoDB。所以，它会编译，你将能够在开发时使用它。
但是，当你编译时，它不会包含在最终的jar 中。并且例如 MongoDB 不在龙头中，它会造成您的错误（找不到 MongoDB class）。
要修复它，有多个教程 1, 2, , 4 ...我相信我们可以找到更多。
我建议你像那样导入 mongo 数据库 :
<dependency>
<groupId>org.mongodb</groupId>
<artifactId>mongo-java-driver</artifactId>
<version>3.12.10</version> <!-- The version that you want -->
<scope>compile</scope> <!-- In my maven project, it include this project in builded jar -->
</dependency>
您可以找到 MongoDB here
的所有版本
我的完整配置有效：
<properties>
<java.version>1.8</java.version>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.8.1</version>
<configuration>
<source>${java.version}</source>
<target>${java.version}</target>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-shade-plugin</artifactId>
<version>3.2.4</version>
<executions>
<execution>
<phase>package</phase>
<goals>
<goal>shade</goal>
</goals>
<configuration>
<createDependencyReducedPom>false</createDependencyReducedPom>
</configuration>
</execution>
</executions>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-assembly-plugin</artifactId>
<executions>
<execution>
<phase>package</phase>
<goals>
<goal>single</goal>
</goals>
<configuration>
<descriptorRefs>
<descriptorRef>jar-with-dependencies</descriptorRef>
</descriptorRefs>
</configuration>
</execution>
</executions>
</plugin>
</plugins>
</build>
<repositories>
<repository>
<id>sonatype</id>
<url>https://oss.sonatype.org/content/groups/public/</url>
</repository>
</repositories>
<dependencies>
<dependency>
<groupId>org.mongodb</groupId>
<artifactId>mongo-java-driver</artifactId>
<version>3.12.10</version>
<scope>compile</scope>
</dependency>
</dependencies>
我正在为我的 minecraft 服务器制作一个 minecraft 插件，但出现错误，我找不到解决方案。上下文：我想存储 level/xp/rank 等播放器的数据......你能帮我做这部分插件吗，我是 Java.[=16= 的初学者]
这是我的代码：
import com.mongodb.MongoClient;
import com.mongodb.client.MongoClients;
import com.mongodb.client.MongoCollection;
import com.mongodb.client.MongoDatabase;
import me.codexis.velocitylobbygeneral.commands.Lobby;
import me.codexis.velocitylobbygeneral.commands.MoveBot;
import me.codexis.velocitylobbygeneral.commands.Test;
import me.codexis.velocitylobbygeneral.event.*;
import org.bson.Document;
import org.bukkit.ChatColor;
import org.bukkit.plugin.java.JavaPlugin;
public final class VelocityLobbyGeneral extends JavaPlugin {
private static VelocityLobbyGeneral instance;
@Override
public void onEnable() {
setInstance(this);
// Listeners
getServer().getPluginManager().registerEvents(new OnJoinQuit(), this);
getServer().getPluginManager().registerEvents(new FormatChat(), this);
getServer().getPluginManager().registerEvents(new Scoreboard(), this);
// Channels
getServer().getMessenger().registerOutgoingPluginChannel(this, "BungeeCord");
// Commands
new Lobby();
new MoveBot();
new Test();
// Connection to database
MongoClient mongoClient = (MongoClient) MongoClients.create("mongodb+srv://myusername:@databasemc.ehssc.mongodb.net/VelocityMC?retryWrites=true&w=majority");
MongoDatabase mongoDatabase = mongoClient.getDatabase("VelocityMC");
MongoCollection<Document> mongoCollection = mongoDatabase.getCollection("Vide");
getLogger().info(ChatColor.GREEN + "Connected to Database");
getLogger().info("=============================================");
getLogger().info(" >>>> Velocity Lobby General Loaded <<<< ");
getLogger().info("=============================================");
}
@Override
public void onDisable() {
getLogger().info("===============================================");
getLogger().info(" >>>> Velocity Lobby General disabled <<<< ");
getLogger().info("===============================================");
}
public static VelocityLobbyGeneral getInstance(){
return instance;
}
private static void setInstance(VelocityLobbyGeneral instance){
velocityLobbyGeneral.instance = instance;
}
}
这是我的错误：
[12:32:49 WARN]: java.lang.NoClassDefFoundError: com/mongodb/client/MongoClients
[12:32:49 WARN]: at VelocityLobbyGeneral.jar//me.codexis.velocitylobbygeneral.VelocityLobbyGeneral.onEnable(VelocityLo
bbyGeneral.java:38)
[12:32:49 WARN]: at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:264)
[12:32:49 WARN]: at
org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:370)
[12:32:49 WARN]: at
org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:500)
[12:32:49 WARN]: at
org.bukkit.craftbukkit.v1_17_R1.CraftServer.enablePlugin(CraftServer.java:535)
[12:32:49 WARN]: at
org.bukkit.craftbukkit.v1_17_R1.CraftServer.enablePlugins(CraftServer.java:449)
[12:32:49 WARN]: at
org.bukkit.craftbukkit.v1_17_R1.CraftServer.reload(CraftServer.java:970)
[12:32:49 WARN]: at org.bukkit.Bukkit.reload(Bukkit.java:769)
[12:32:49 WARN]: at org.bukkit.command.defaults.ReloadCommand.execute(ReloadCommand.java:54)
[12:32:49 WARN]: at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:159)
[12:32:49 WARN]: at org.bukkit.craftbukkit.v1_17_R1.CraftServer.dispatchCommand(CraftServer.java:838)
[12:32:49 WARN]: at org.bukkit.craftbukkit.v1_17_R1.CraftServer.dispatchServerCommand(CraftServer.java:801)
[12:32:49 WARN]: at net.minecraft.server.dedicated.DedicatedServer.handleCommandQueue(DedicatedServer.java:518)
[12:32:49 WARN]: at net.minecraft.server.dedicated.DedicatedServer.b(DedicatedServer.java:480)
[12:32:49 WARN]: at net.minecraft.server.MinecraftServer.a(MinecraftServer.java:1475)
[12:32:49 WARN]: at net.minecraft.server.MinecraftServer.x(MinecraftServer.java:1274)
[12:32:49 WARN]: at net.minecraft.server.MinecraftServer.lambda$spin[=12=](MinecraftServer.java:319)
[12:32:49 WARN]: at java.base/java.lang.Thread.run(Thread.java:831)
[12:32:49 WARN]: Caused by: java.lang.ClassNotFoundException: com.mongodb.client.MongoClients
[12:32:49 WARN]: at org.bukkit.plugin.java.PluginClassLoader.loadClass0(PluginClassLoader.java:146)
[12:32:49 WARN]: at org.bukkit.plugin.java.PluginClassLoader.loadClass(PluginClassLoader.java:103)
[12:32:49 WARN]: at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:519)
[12:32:49 WARN]: ... 18 more
谁能帮帮我
Pom.xml :
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>me.codexisphantom</groupId>
<artifactId>VelocityLobby</artifactId>
<version>1.0</version>
<packaging>jar</packaging>
<name>VelocityLobby</name>
<description>Official VelocityMC Plugin</description>
<properties>
<java.version>1.8</java.version>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>
<url>www.velocity-net.com</url>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.8.1</version>
<configuration>
<source>${java.version}</source>
<target>${java.version}</target>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-shade-plugin</artifactId>
<version>3.2.4</version>
<executions>
<execution>
<phase>package</phase>
<goals>
<goal>shade</goal>
</goals>
<configuration>
<createDependencyReducedPom>false</createDependencyReducedPom>
</configuration>
</execution>
</executions>
</plugin>
</plugins>
<resources>
<resource>
<directory>src/main/resources</directory>
<filtering>true</filtering>
</resource>
</resources>
</build>
<repositories>
<repository>
<id>papermc-repo</id>
<url>https://papermc.io/repo/repository/maven-public/</url>
</repository>
<repository>
<id>sonatype</id>
<url>https://oss.sonatype.org/content/groups/public/</url>
</repository>
</repositories>
<dependencies>
<dependency>
<groupId>io.papermc.paper</groupId>
<artifactId>paper-api</artifactId>
<version>1.17.1-R0.1-SNAPSHOT</version>
<scope>provided</scope>
</dependency>
</dependencies>
Mongodb 依赖：
<dependency>
<groupId>org.mongodb</groupId>
<artifactId>mongo-java-driver</artifactId>
<version>3.12.10</version>
<scope>compile</scope>
</dependency>
已添加插件：
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-assembly-plugin</artifactId>
<executions>
<execution>
<phase>package</phase>
<goals>
<goal>single</goal>
</goals>
<configuration>
<descriptorRefs>
<descriptorRef>jar-with-dependencies</descriptorRef>
</descriptorRefs>
</configuration>
</execution>
</executions>
</plugin>
在您的 Maven 配置中，您正在导入 MongoDB。所以，它会编译，你将能够在开发时使用它。
但是，当你编译时，它不会包含在最终的jar 中。并且例如 MongoDB 不在龙头中，它会造成您的错误（找不到 MongoDB class）。
要修复它，有多个教程 1, 2,
我建议你像那样导入 mongo 数据库 :
<dependency>
<groupId>org.mongodb</groupId>
<artifactId>mongo-java-driver</artifactId>
<version>3.12.10</version> <!-- The version that you want -->
<scope>compile</scope> <!-- In my maven project, it include this project in builded jar -->
</dependency>
您可以找到 MongoDB here
的所有版本我的完整配置有效：
<properties>
<java.version>1.8</java.version>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.8.1</version>
<configuration>
<source>${java.version}</source>
<target>${java.version}</target>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-shade-plugin</artifactId>
<version>3.2.4</version>
<executions>
<execution>
<phase>package</phase>
<goals>
<goal>shade</goal>
</goals>
<configuration>
<createDependencyReducedPom>false</createDependencyReducedPom>
</configuration>
</execution>
</executions>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-assembly-plugin</artifactId>
<executions>
<execution>
<phase>package</phase>
<goals>
<goal>single</goal>
</goals>
<configuration>
<descriptorRefs>
<descriptorRef>jar-with-dependencies</descriptorRef>
</descriptorRefs>
</configuration>
</execution>
</executions>
</plugin>
</plugins>
</build>
<repositories>
<repository>
<id>sonatype</id>
<url>https://oss.sonatype.org/content/groups/public/</url>
</repository>
</repositories>
<dependencies>
<dependency>
<groupId>org.mongodb</groupId>
<artifactId>mongo-java-driver</artifactId>
<version>3.12.10</version>
<scope>compile</scope>
</dependency>
</dependencies>