feat: 调整命令逻辑, 新增reload命令.

src/main/java/com/serliunx/ddns/ManagerLite.java

@@ -10,6 +10,7 @@ import com.serliunx.ddns.support.InstanceContextHolder;
 import com.serliunx.ddns.support.SystemInitializer;
 import com.serliunx.ddns.support.command.CommandDispatcher;
 import com.serliunx.ddns.support.command.target.HelpCommand;
+import com.serliunx.ddns.support.command.target.ReloadCommand;
 import com.serliunx.ddns.support.log.JLineAdaptAppender;
 import org.jline.reader.LineReader;
 import org.jline.reader.LineReaderBuilder;
@@ -119,6 +120,8 @@ public final class ManagerLite {
         commandDispatcher = CommandDispatcher.getInstance();
         // help
         commandDispatcher.register(new HelpCommand());
+        // reload
+        commandDispatcher.register(new ReloadCommand(configuration));
     }
 
     /**

src/main/java/com/serliunx/ddns/support/command/CommandDispatcher.java

@@ -1,12 +1,11 @@
 package com.serliunx.ddns.support.command;
 
-import com.serliunx.ddns.ManagerLite;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
 import java.util.Arrays;
+import java.util.LinkedHashMap;
 import java.util.Map;
-import java.util.concurrent.ConcurrentHashMap;
 
 /**
  * 指令调度器
@@ -26,7 +25,16 @@ public final class CommandDispatcher {
 	/**
 	 * 最顶层指令缓存
 	 */
-	private final Map<String, Command> commands = new ConcurrentHashMap<>(128);
+	private final Map<String, Command> commands = new LinkedHashMap<>(128);
+
+	/**
+	 * 获取所有已注册的指令
+	 *
+	 * @return	已注册的指令
+	 */
+	public Map<String, Command> getCommands() {
+		return commands;
+	}
 
 	/**
 	 * 指令注册
@@ -80,6 +88,16 @@ public final class CommandDispatcher {
 		return newArgs;
 	}
 
+	/**
+	 * 检查是否存在参数
+	 *
+	 * @param args	参数
+	 * @return	参数长度大于0返回真, 否则返回假
+	 */
+	public static boolean hasArgs(String[] args) {
+		return args.length > 0;
+	}
+
 	/**
 	 * 获取实例
 	 */

src/main/java/com/serliunx/ddns/support/command/target/HelpCommand.java

@@ -2,15 +2,19 @@ package com.serliunx.ddns.support.command.target;
 
 import com.serliunx.ddns.ManagerLite;
 import com.serliunx.ddns.support.command.AbstractCommand;
+import com.serliunx.ddns.support.command.Command;
+import com.serliunx.ddns.support.command.CommandDispatcher;
 import org.slf4j.Logger;
 
-import java.util.Arrays;
+import java.util.Map;
+
+import static com.serliunx.ddns.support.command.CommandDispatcher.hasArgs;
 
 /**
  * 指令: help
  *
  * @author <a href="mailto:serliunx@yeah.net">SerLiunx</a>
- * @version 1.0.0
+ * @version 1.0.4
  * @since 2025/1/15
  */
 public class HelpCommand extends AbstractCommand {
@@ -18,12 +22,35 @@ public class HelpCommand extends AbstractCommand {
 	private static final Logger log = ManagerLite.getLogger();
 
 	public HelpCommand() {
-		super("help", null, "查看帮助信息", "help cmd");
+		super("help", null, "查看帮助信息", "help <指令>");
 	}
 
 	@Override
 	public boolean onCommand(String[] args) {
-		System.out.println(Arrays.toString(args));
+		final Map<String, Command> commands = CommandDispatcher.getInstance().getCommands();
+
+		log.info("==========================================");
+		if (hasArgs(args)) {
+			final String cmd = args[0];
+			final Command command = commands.get(cmd);
+			if (command == null) {
+				log.warn("无法找到指令 {} 的相关信息, 请使用 help 查看可用的指令及帮助!", cmd);
+			} else {
+				log.info("指令:\t{}\t-\t{}\t-\t{}", cmd, command.getDescription(), command.getUsage());
+			}
+		} else {
+			commands.forEach((k, v) -> {
+				// 忽略 help 自身
+				if (k.equals(getName())) {
+					return;
+				}
+				log.info("{}\t-\t{}\t-\t{}", k, v.getDescription(), v.getUsage());
+			});
+			log.info("exit\t-\t退出程序\t-\texit");
+			log.info("");
+			log.info("使用 help <指令> 来查看更详细的帮助信息.");
+		}
+		log.info("==========================================");
 		return true;
 	}
 }

src/main/java/com/serliunx/ddns/support/command/target/ReloadCommand.java

@@ -0,0 +1,37 @@
+package com.serliunx.ddns.support.command.target;
+
+import com.serliunx.ddns.ManagerLite;
+import com.serliunx.ddns.config.Configuration;
+import com.serliunx.ddns.support.command.AbstractCommand;
+import org.slf4j.Logger;
+
+/**
+ * 指令: reload
+ *
+ * @author <a href="mailto:serliunx@yeah.net">SerLiunx</a>
+ * @version 1.0.4
+ * @since 2025/1/16
+ */
+public class ReloadCommand extends AbstractCommand {
+
+    private static final Logger log = ManagerLite.getLogger();
+
+    /**
+     * 配置信息
+     */
+    private final Configuration configuration;
+
+    public ReloadCommand(Configuration configuration) {
+        super("reload", null, "重新载入配置文件.", "reload");
+        this.configuration = configuration;
+    }
+
+    @Override
+    public boolean onCommand(String[] args) {
+        if (configuration == null) {
+            return false;
+        }
+        configuration.refresh();
+        return true;
+    }
+}