add methods

hutool-cron/src/main/java/cn/hutool/cron/CronUtil.java

@@ -110,9 +110,10 @@ public class CronUtil {
 	 * 移除任务
 	 *
 	 * @param schedulerId 任务ID
+	 * @return 是否移除成功，{@code false}表示未找到对应ID的任务
 	 */
-	public static void remove(String schedulerId) {
-		scheduler.deschedule(schedulerId);
+	public static boolean remove(String schedulerId) {
+		return scheduler.descheduleWithStatus(schedulerId);
 	}
 
 	/**

hutool-cron/src/main/java/cn/hutool/cron/Scheduler.java

@@ -289,10 +289,21 @@ public class Scheduler implements Serializable {
 	 * @return this
 	 */
 	public Scheduler deschedule(String id) {
-		this.taskTable.remove(id);
+		descheduleWithStatus(id);
 		return this;
 	}
 
+	/**
+	 * 移除Task，并返回是否移除成功
+	 *
+	 * @param id Task的ID
+	 * @return 是否移除成功，{@code false}表示未找到对应ID的任务
+	 * @since 5.7.17
+	 */
+	public boolean descheduleWithStatus(String id) {
+		return this.taskTable.remove(id);
+	}
+
 	/**
 	 * 更新Task执行的时间规则
 	 *

hutool-cron/src/main/java/cn/hutool/cron/TaskTable.java

@@ -1,5 +1,6 @@
 package cn.hutool.cron;
 
+import cn.hutool.core.util.StrUtil;
 import cn.hutool.cron.pattern.CronPattern;
 import cn.hutool.cron.task.CronTask;
 import cn.hutool.cron.task.Task;
@@ -271,6 +272,16 @@ public class TaskTable implements Serializable {
 		}
 	}
 
+	@Override
+	public String toString() {
+		final StringBuilder builder = StrUtil.builder();
+		for (int i = 0; i < size; i++) {
+			builder.append(StrUtil.format("[{}] [{}] [{}]\n",
+					ids.get(i), patterns.get(i), tasks.get(i)));
+		}
+		return builder.toString();
+	}
+
 	/**
 	 * 如果时间匹配则执行相应的Task，无锁
 	 *

hutool-cron/src/test/java/cn/hutool/cron/TaskTableTest.java

@@ -0,0 +1,21 @@
+package cn.hutool.cron;
+
+import cn.hutool.core.lang.Console;
+import cn.hutool.core.util.IdUtil;
+import cn.hutool.cron.pattern.CronPattern;
+import org.junit.Ignore;
+import org.junit.Test;
+
+public class TaskTableTest {
+
+	@Test
+	@Ignore
+	public void toStringTest(){
+		final TaskTable taskTable = new TaskTable();
+		taskTable.add(IdUtil.fastUUID(), new CronPattern("*/10 * * * * *"), ()-> Console.log("Task 1"));
+		taskTable.add(IdUtil.fastUUID(), new CronPattern("*/20 * * * * *"), ()-> Console.log("Task 2"));
+		taskTable.add(IdUtil.fastUUID(), new CronPattern("*/30 * * * * *"), ()-> Console.log("Task 3"));
+
+		Console.log(taskTable);
+	}
+}