CheckinSystem的首次提交

.gitignore

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+target/
+!.mvn/wrapper/maven-wrapper.jar
+!**/src/main/**/target/
+!**/src/test/**/target/
+.kotlin
+
+### IntelliJ IDEA ###
+.idea/modules.xml
+.idea/jarRepositories.xml
+.idea/compiler.xml
+.idea/libraries/
+*.iws
+*.iml
+*.ipr
+
+### Eclipse ###
+.apt_generated
+.classpath
+.factorypath
+.project
+.settings
+.springBeans
+.sts4-cache
+
+### NetBeans ###
+/nbproject/private/
+/nbbuild/
+/dist/
+/nbdist/
+/.nb-gradle/
+build/
+!**/src/main/**/build/
+!**/src/test/**/build/
+
+### VS Code ###
+.vscode/
+
+### Mac OS ###
+.DS_Store

.idea/.gitignore

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+# 默认忽略的文件
+/shelf/
+/workspace.xml

.idea/encodings.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="Encoding">
+    <file url="file://$PROJECT_DIR$/src/main/java" charset="UTF-8" />
+    <file url="file://$PROJECT_DIR$/src/main/resources" charset="UTF-8" />
+  </component>
+</project>

.idea/misc.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ExternalStorageConfigurationManager" enabled="true" />
+  <component name="MavenProjectsManager">
+    <option name="originalFiles">
+      <list>
+        <option value="$PROJECT_DIR$/pom.xml" />
+      </list>
+    </option>
+  </component>
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_24" default="true" project-jdk-name="24" project-jdk-type="JavaSDK">
+    <output url="file://$PROJECT_DIR$/out" />
+  </component>
+</project>

.idea/vcs.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="VcsDirectoryMappings">
+    <mapping directory="$PROJECT_DIR$" vcs="Git" />
+  </component>
+</project>

pom.xml

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+<project>
+    <modelVersion>4.0.0</modelVersion>
+    <groupId>com.mmlsystem</groupId>
+    <artifactId>CheckinSystem</artifactId>
+    <version>1.0</version>
+
+    <repositories>
+        <repository>
+            <id>central</id>
+            <url>https://repo.maven.apache.org/maven2/</url>
+        </repository>
+        <repository>
+            <id>spigot-repo</id>
+            <url>https://hub.spigotmc.org/nexus/content/repositories/snapshots/</url>
+        </repository>
+        <repository>
+            <id>jitpack-io</id>
+            <url>https://jitpack.io/</url>
+        </repository>
+    </repositories>
+
+    <dependencies>
+        <dependency>
+            <groupId>org.spigotmc</groupId>
+            <artifactId>spigot-api</artifactId>
+            <version>1.21.8-R0.1-SNAPSHOT</version>
+            <scope>provided</scope>
+        </dependency>
+        <dependency>
+            <groupId>com.github.MilkBowl</groupId>
+            <artifactId>VaultAPI</artifactId>
+            <version>1.7</version>
+            <scope>provided</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.jetbrains</groupId>
+            <artifactId>annotations</artifactId>
+            <version>24.1.0</version>
+            <scope>compile</scope>
+        </dependency>
+    </dependencies>
+</project>

src/main/java/com/mmlsystem/CheckinSystem/CheckinCommand.java

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+package com.mmlsystem.CheckinSystem;
+
+import org.bukkit.command.Command;
+import org.bukkit.command.CommandExecutor;
+import org.bukkit.command.CommandSender;
+import org.bukkit.entity.Player;
+import org.jetbrains.annotations.NotNull;
+
+public class CheckinCommand implements CommandExecutor {
+    private final CheckinManager manager;
+
+    public CheckinCommand(CheckinManager manager) {
+        this.manager = manager;
+    }
+
+    @Override
+    public boolean onCommand(@NotNull CommandSender sender, @NotNull Command command, @NotNull String label, String[] args) {
+        if (!(sender instanceof Player)) return false;
+
+        Player player = (Player) sender;
+
+        player.sendMessage("签到中，请稍候...");
+        manager.checkinAsync(player, message -> player.sendMessage(message));
+        return true;
+    }
+}

src/main/java/com/mmlsystem/CheckinSystem/CheckinManager.java

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+package com.mmlsystem.CheckinSystem;
+
+import net.milkbowl.vault.economy.Economy;
+import org.bukkit.Bukkit;
+import org.bukkit.entity.Player;
+
+import java.sql.*;
+import java.time.*;
+import java.util.UUID;
+import java.util.function.Consumer;
+
+public class CheckinManager {
+    private final Foundation plugin;
+    private final Economy econ;
+
+    public CheckinManager(Foundation plugin) {
+        this.plugin = plugin;
+        this.econ = Foundation.getEconomy();
+    }
+
+    public void checkinAsync(Player player, Consumer<String> callback) {
+        Bukkit.getScheduler().runTaskAsynchronously(plugin, () -> {
+            String message;
+            try {
+                message = execCheckin(player);
+            } catch (Exception e) {
+                plugin.getLogger().severe(e.getMessage());
+                message = "§c未知错误。";
+            }
+
+            String finalMessage = message;
+            Bukkit.getScheduler().runTask(plugin, () -> callback.accept(finalMessage));
+        });
+    }
+
+    private String execCheckin(Player player) {
+        if (!player.hasPermission("com.mmlsystem.checkin")) {
+            return "§c拒绝访问。";
+        }
+        UUID uuid = player.getUniqueId();
+        LocalDate today = LocalDate.now();
+
+        try {
+            PreparedStatement ps = plugin.getConnection().prepareStatement("SELECT last_checkin, streak, total_checkin FROM checkins WHERE uuid=?");
+            ps.setString(1, uuid.toString());
+            ResultSet rs = ps.executeQuery();
+
+            if (rs.next()) {
+                long lastCheckin = rs.getLong("last_checkin");
+                int streak = rs.getInt("streak");
+                int total = rs.getInt("total_checkin");
+
+                LocalDate lastDate = Instant.ofEpochMilli(lastCheckin)
+                        .atZone(ZoneId.systemDefault()).toLocalDate();
+                if (today.isEqual(lastDate)) {
+                    rs.close();
+                    ps.close();
+                    return "§e你今天已经签到过了！";
+                } else {
+                    if (today.minusDays(1).isEqual(lastDate)) {
+                        streak += 1;
+                    } else {
+                        streak = 1;
+                    }
+                }
+                total += 1;
+                ps = plugin.getConnection().prepareStatement(
+                        "UPDATE checkins SET last_checkin=?, streak=?, total_checkin=? WHERE uuid=?");
+                ps.setLong(1, today.atStartOfDay(ZoneId.systemDefault()).toInstant().toEpochMilli());
+                ps.setInt(2, streak);
+                ps.setInt(3, total);
+                ps.setString(4, uuid.toString());
+                ps.executeUpdate();
+                double reward = getReward(streak);
+                econ.depositPlayer(player, reward);
+                ps.close();
+                rs.close();
+                return "§a签到成功！已连续签到§b" + streak + "§a天，获得§c$" + reward + "§a奖励";
+            } else {
+                ps = plugin.getConnection().prepareStatement(
+                        "INSERT INTO checkins(last_checkin,streak,total_checkin,uuid) VALUES(?,?,?,?)");
+                ps.setLong(1, today.atStartOfDay(ZoneId.systemDefault()).toInstant().toEpochMilli());
+                ps.setInt(2, 1);
+                ps.setInt(3, 1);
+                ps.setString(4, uuid.toString());
+                ps.executeUpdate();
+                econ.depositPlayer(player, 25.0);
+                ps.close();
+                rs.close();
+                return "§a签到成功！已连续签到§b1§a天，获得§c$25§a奖励";
+            }
+        } catch (SQLException e) {
+            plugin.getLogger().severe(e.getMessage());
+            return "§c未知错误。";
+        }
+    }
+
+    public double getReward(int streak) {
+        if (streak >= 7) {
+            return 200.0;
+        } else {
+            return 25.0 * streak;
+        }
+    }
+}

src/main/java/com/mmlsystem/CheckinSystem/Foundation.java

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+package com.mmlsystem.CheckinSystem;
+
+import net.milkbowl.vault.economy.Economy;
+import org.bukkit.Bukkit;
+import org.bukkit.permissions.PermissionDefault;
+import org.bukkit.plugin.java.JavaPlugin;
+import org.bukkit.permissions.Permission;
+import org.bukkit.plugin.PluginManager;
+import org.bukkit.plugin.RegisteredServiceProvider;
+
+import java.io.File;
+import java.sql.Connection;
+import java.sql.DriverManager;
+import java.sql.SQLException;
+import java.sql.Statement;
+import java.util.Objects;
+
+public class Foundation extends JavaPlugin {
+    public static final Permission CHECKIN_PERM = new Permission(
+            "com.mmlsystem.checkin",
+            "允许玩家执行签到操作。",
+            PermissionDefault.TRUE
+    );
+    private static Economy econ = null;
+    private static Connection connection;
+
+    @Override
+    public void onEnable() {
+        getLogger().info("张华考上了北京大学");
+        getLogger().info("李萍进了中等技术学校");
+        getLogger().info("你却在这里看服务器启动日志里面有没有什么奇怪的东西");
+        if (!setupEconomy()) {
+            getLogger().severe("什么杂鱼服务器连个经济插件都没有（大雾）");
+            getLogger().severe("请先安装Vault 1.7+或VaultUnlocked插件以继续操作");
+            getServer().getPluginManager().disablePlugin(this);
+            return;
+        }
+        setupDatabase();
+        PluginManager pm = getServer().getPluginManager();
+        pm.addPermission(CHECKIN_PERM);
+        Objects.requireNonNull(getCommand("checkin")).setExecutor(new CheckinCommand(new CheckinManager(this)));
+        getLogger().info("插件启用成功。");
+    }
+
+    @Override
+    public void onDisable() {
+        try {
+            connection.close();
+        } catch (SQLException e) {
+            getLogger().severe(e.getMessage());
+            throw new RuntimeException(e);
+        }
+        getLogger().info("插件禁用成功。");
+    }
+
+    public static Economy getEconomy() {
+        return econ;
+    }
+
+    public Connection getConnection() {
+        return connection;
+    }
+
+    private boolean setupEconomy() {
+        if (getServer().getPluginManager().getPlugin("Vault") == null) {
+            return false;
+        }
+        RegisteredServiceProvider<Economy> rsp = Bukkit.getServicesManager().getRegistration(Economy.class);
+        if (rsp == null) {
+            return false;
+        }
+        econ = rsp.getProvider();
+        return true;
+    }
+
+    private void setupDatabase() {
+        try {
+            File dbFile = new File(getDataFolder(), "data.db");
+            if (!getDataFolder().exists()) {
+                //noinspection ResultOfMethodCallIgnored
+                getDataFolder().mkdirs();
+            }
+
+            connection = DriverManager.getConnection("jdbc:sqlite:" + dbFile.getAbsolutePath());
+            Statement stmt = connection.createStatement();
+            stmt.executeUpdate("CREATE TABLE IF NOT EXISTS checkins (" +
+                    "uuid TEXT PRIMARY KEY," +
+                    "last_checkin INTEGER," +
+                    "streak INTEGER," +
+                    "total_checkin INTEGER)");
+            stmt.close();
+
+            getLogger().info("SQLite 数据库初始化成功。");
+        } catch (SQLException e) {
+            getLogger().severe(e.getMessage());
+        }
+    }
+}

src/main/resources/plugin.yml

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+name: HelloPlugin
+main: com.mmlsystem.CheckinSystem.Foundation
+version: 1.0
+api-version: 1.21
+author: 杏川铭心
+description: 提供服务器每日签到功能。
+depend: [Vault]
+commands:
+  checkin:
+    description: 在服务器上签到并获取奖励。
+    usage: /checkin