add:完成基于 @scheduled 注解的定时任务模块

Author: chachae

spring-boot-task/pom.xml

@@ -0,0 +1,25 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<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">
+    <parent>
+        <artifactId>JavaStudy</artifactId>
+        <groupId>com.chachae</groupId>
+        <version>1.0-SNAPSHOT</version>
+    </parent>
+    <modelVersion>4.0.0</modelVersion>
+
+    <artifactId>spring-boot-task</artifactId>
+
+    <dependencies>
+
+        <!-- joda-time -->
+        <dependency>
+            <groupId>joda-time</groupId>
+            <artifactId>joda-time</artifactId>
+            <version>${joda.time.version}</version>
+        </dependency>
+
+    </dependencies>
+
+</project>

spring-boot-task/src/main/java/com/chachae/task/TaskApplication.java

@@ -0,0 +1,18 @@
+package com.chachae.task;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.scheduling.annotation.EnableScheduling;
+
+/**
+ * @author chachae
+ * @since 2020/1/11 17:26
+ */
+@SpringBootApplication
+@EnableScheduling
+public class TaskApplication {
+
+  public static void main(String[] args) {
+    SpringApplication.run(TaskApplication.class);
+  }
+}

spring-boot-task/src/main/java/com/chachae/task/job/TaskJob.java

@@ -0,0 +1,33 @@
+package com.chachae.task.job;
+
+import com.chachae.task.util.DateUtil;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.scheduling.annotation.Scheduled;
+import org.springframework.stereotype.Component;
+
+/**
+ * @author chachae
+ * @since 2020/1/11 20:19
+ */
+@Slf4j
+@Component
+public class TaskJob {
+
+  /** 每隔20s 执行一次 */
+  @Scheduled(cron = "0/20 * * * * ?")
+  public void taskOne() {
+    log.info("【task 1】 : {}", DateUtil.now());
+  }
+
+  /** 从启动时间开始，间隔 5s 执行 固定间隔时间 */
+  @Scheduled(fixedRate = 5000)
+  public void taskTwo() {
+    log.info("【task 2】 : {}", DateUtil.now());
+  }
+
+  /** 从启动时间开始，延迟 5s 后间隔 10s 执行 固定等待时间 */
+  @Scheduled(fixedDelay = 10000, initialDelay = 5000)
+  public void taskThree() {
+    log.info("【task 3】 : {}", DateUtil.now());
+  }
+}

spring-boot-task/src/main/java/com/chachae/task/util/DateUtil.java

@@ -0,0 +1,31 @@
+package com.chachae.task.util;
+
+import org.joda.time.LocalDateTime;
+import org.joda.time.format.DateTimeFormat;
+import org.joda.time.format.DateTimeFormatter;
+
+import java.util.Date;
+
+/**
+ * 日期工具类
+ *
+ * @author chachae
+ * @date 2019/12/17 10:46
+ */
+public class DateUtil {
+
+  private static final DateTimeFormatter FORMATTER =
+      DateTimeFormat.forPattern("yyyy-MM-dd HH:mm:ss");
+
+  public static String now() {
+    return FORMATTER.print(LocalDateTime.now());
+  }
+
+  public static Date nowDate() {
+    return LocalDateTime.now().toDate();
+  }
+
+  public static Date parse(String date) {
+    return FORMATTER.parseDateTime(date).toDate();
+  }
+}

spring-boot-task/src/main/resources/application.yml

@@ -0,0 +1,7 @@
+spring:
+  task:
+    execution:
+      thread-name-prefix: chachae-Thread-
+    scheduling:
+      pool:
+        size: 20