!69 优化代码，程序退出时，主动结束循环，防止程序死循环持续挂起无法正常结束服务

Merge pull request !69 from shanhy/thread-shutdown

austin-data-house/src/main/java/com/java3y/austin/datahouse/AustinHiveBootStrap.java

@@ -8,7 +8,7 @@ import org.apache.flink.table.api.bridge.java.StreamTableEnvironment;
 import org.apache.flink.table.catalog.hive.HiveCatalog;
 
 /**
- * flink启动类
+ * hive启动类
  * <p>
  * 接受Kafka的消息 写入hive表中
  *

austin-handler/src/main/java/com/java3y/austin/handler/config/SensitiveWordsConfig.java

@@ -9,9 +9,11 @@ import org.springframework.core.io.Resource;
 import org.springframework.core.io.ResourceLoader;
 import org.springframework.core.task.TaskExecutor;
 import org.springframework.data.redis.core.RedisTemplate;
+import org.springframework.scheduling.concurrent.ThreadPoolTaskExecutor;
 import org.springframework.util.ObjectUtils;
 
 import javax.annotation.PostConstruct;
+import javax.annotation.PreDestroy;
 import java.io.BufferedReader;
 import java.io.IOException;
 import java.io.InputStreamReader;
@@ -67,6 +69,11 @@ public class SensitiveWordsConfig {
     @Autowired
     private ResourceLoader resourceLoader;
 
+    /**
+     * 是否终止线程
+     */
+    private volatile boolean stop = false;
+
     /**
      * 初始化敏感词字典
      */
@@ -120,7 +127,7 @@ public class SensitiveWordsConfig {
      * 实现热更新，修改词典后自动加载
      */
     private void startScheduledUpdate() {
-        while (true) {
+        while (!stop) {
             try {
                 TimeUnit.SECONDS.sleep(UPDATE_TIME_SECONDS);
                 log.debug("SensitiveWordConfig#startScheduledUpdate start update...");
@@ -128,9 +135,22 @@ public class SensitiveWordsConfig {
                 storeSensWords();
             } catch (InterruptedException e) {
                 log.error("SensitiveWordConfig#startScheduledUpdate interrupted: {}", e.getMessage());
+                Thread.currentThread().interrupt();
                 break;
             }
         }
     }
 
+    /**
+     * onDestroy
+     */
+    @PreDestroy
+    public void onDestroy() {
+        stop = true;
+        if (taskExecutor instanceof ThreadPoolTaskExecutor) {
+            ThreadPoolTaskExecutor threadPoolTaskExecutor = (ThreadPoolTaskExecutor) taskExecutor;
+            threadPoolTaskExecutor.shutdown();
+        }
+    }
+
 }

austin-handler/src/main/java/com/java3y/austin/handler/receipt/MessageReceipt.java

@@ -9,7 +9,9 @@ import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Component;
 
 import javax.annotation.PostConstruct;
+import javax.annotation.PreDestroy;
 import java.util.List;
+import java.util.concurrent.TimeUnit;
 
 /**
  * 拉取回执信息 入口
@@ -23,20 +25,38 @@ public class MessageReceipt {
     @Autowired
     private List<ReceiptMessageStater> receiptMessageStaterList;
 
+    /**
+     * 是否终止线程
+     */
+    private volatile boolean stop = false;
+
     @PostConstruct
     private void init() {
         SupportThreadPoolConfig.getPendingSingleThreadPool().execute(() -> {
-            while (true) {
+            while (!stop) {
                 try {
                     for (ReceiptMessageStater receiptMessageStater : receiptMessageStaterList) {
                         //receiptMessageStater.start();
                     }
-                    Thread.sleep(2000);
+                    TimeUnit.SECONDS.sleep(2);
+                } catch (InterruptedException ex) {
+                    log.error("MessageReceipt#init interrupted: {}", ex.getMessage());
+                    Thread.currentThread().interrupt();
+                    break;
                 } catch (Exception e) {
                     log.error("MessageReceipt#init fail:{}", Throwables.getStackTraceAsString(e));
-                    Thread.currentThread().interrupt();
                 }
             }
         });
     }
+
+    /**
+     * 销毁调用
+     */
+    @PreDestroy
+    public void onDestroy() {
+        this.stop = true;
+        SupportThreadPoolConfig.getPendingSingleThreadPool().shutdown();
+    }
+
 }

austin-handler/src/main/java/com/java3y/austin/handler/receiver/redis/RedisReceiver.java

@@ -14,6 +14,7 @@ import org.springframework.data.redis.core.StringRedisTemplate;
 import org.springframework.stereotype.Component;
 
 import javax.annotation.PostConstruct;
+import javax.annotation.PreDestroy;
 import java.util.List;
 import java.util.Optional;
 import java.util.concurrent.ScheduledExecutorService;
@@ -22,7 +23,6 @@ import java.util.concurrent.TimeUnit;
 import java.util.function.Consumer;
 
 /**
- *
  * Redis 消息队列实现类
  *
  * @author xiaoxiamao
@@ -43,13 +43,23 @@ public class RedisReceiver implements MessageReceiver {
     @Autowired
     private ConsumeService consumeService;
 
+    /**
+     * 调度线程池
+     */
+    private ScheduledExecutorService scheduler;
+
+    /**
+     * 是否终止线程
+     */
+    private volatile boolean stop = false;
+
     /**
      * 初始化调度线程池
      */
     @PostConstruct
     public void init() {
         // 创建调度线程池
-        ScheduledExecutorService scheduler = new ScheduledThreadPoolExecutor(2,
+        this.scheduler = new ScheduledThreadPoolExecutor(2,
                 r -> new Thread(r, "RedisReceiverThread"));
         // 定时调度
         scheduler.scheduleWithFixedDelay(this::receiveSendMessage, 0, 1, TimeUnit.SECONDS);
@@ -80,23 +90,40 @@ public class RedisReceiver implements MessageReceiver {
 
     /**
      * 消息处理方法
-     *
+     * <p>
      * 处理责任链有去重处理，此处暂不做
      *
-     * @param topic 消息主题
+     * @param topic    消息主题
      * @param consumer 消费处理逻辑
      */
     private void receiveMessage(String topic, Consumer<String> consumer) {
-        try {
-            while (true) {
+        while (!stop) {
+            try {
                 // 阻塞操作，减少CPU，IO消耗
                 Optional<String> message = Optional.ofNullable(
                         stringRedisTemplate.opsForList().rightPop(topic, 20, TimeUnit.SECONDS));
                 message.ifPresent(consumer);
+            } catch (Exception e) {
+                log.error("RedisReceiver#receiveMessage Error receiving messages from Redis topic {}: {}",
+                        topic, e.getMessage());
+                try {
+                    TimeUnit.SECONDS.sleep(10);
+                } catch (InterruptedException ex) {
+                    log.error("RedisReceiver#receiveMessage interrupted: {}", e.getMessage());
+                    Thread.currentThread().interrupt();
+                    break;
+                }
             }
-        } catch (Exception e) {
-            log.error("RedisReceiver#receiveMessage Error receiving messages from Redis topic {}: {}",
-                    topic, e.getMessage());
         }
     }
+
+    /**
+     * 销毁调用
+     */
+    @PreDestroy
+    public void onDestroy() {
+        stop = true;
+        scheduler.shutdown();
+    }
+
 }