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                ??一站式輕松地調用各大LLM模型接口,支持GPT4、智譜、豆包、星火、月之暗面及文生圖、文生視頻 廣告
                ![](https://img.kancloud.cn/56/40/5640f2ad18960fe09aa24de445f46675_1295x499.jpg) 輪詢分發消息演示:啟動兩個工作線程,一個消息發送線程,我們來看看兩個工作線程是如何工作的。 <br/> 步驟如下: **1. 工具類** ```java public class RabbitMQUtils { /** * 連接RabbitMQ服務器 */ public static Channel getChannel() throws Exception { ConnectionFactory factory = new ConnectionFactory(); factory.setHost("192.168.0.107"); factory.setUsername("admin"); factory.setPassword("admin"); Connection connection = factory.newConnection(); Channel channel = connection.createChannel(); return channel; } } ``` **2. 啟動兩個工作線程** ```java public class Worker01 { private static final String QUEUE_NAME = "hello"; public static void main(String[] args) throws Exception { Channel channel = RabbitMQUtils.getChannel(); DeliverCallback deliverCallback = (consumerTag, delivery) -> { String receivedMessage = new String(delivery.getBody()); System.out.println("接收到消息:" + receivedMessage); }; CancelCallback cancelCallback = (consumerTag) -> { System.out.println(consumerTag + "消費者取消消費接口回調邏輯"); }; System.out.println("C1 消費者啟動等待消費......"); channel.basicConsume(QUEUE_NAME, true, deliverCallback, cancelCallback); } } ``` 按照下面步驟使用同一個Worker01來模擬啟動兩個工作線程。 ![](https://img.kancloud.cn/47/19/4719b80f29d69426e354acb30d3e7d02_1416x294.jpg) ![](https://img.kancloud.cn/ed/56/ed56bce06468421a61d7697dd1cd63a0_1337x267.jpg) ![](https://img.kancloud.cn/b5/18/b51826b5e3f40fb54b8d02354da18be1_1426x381.jpg) **3. 啟動一個消息發送線程** ```java public class Task01 { private static final String QUEUE_NAME = "hello"; public static void main(String[] args) throws Exception { try (Channel channel = RabbitMQUtils.getChannel();) { channel.queueDeclare(QUEUE_NAME, false, false, false, null); //從控制臺當中接受信息 Scanner scanner = new Scanner(System.in); while (scanner.hasNext()) { String message = scanner.next(); channel.basicPublish("", QUEUE_NAME, null, message.getBytes()); System.out.println("發送消息完成:" + message); } } } } ``` **4. 測試** (1)生產者生產4條消息。 ![](https://img.kancloud.cn/df/88/df88d605be1bd2a522999c55ed55571e_1498x371.jpg) (2)兩個消費者消費到的消息。 ![](https://img.kancloud.cn/64/e4/64e46a1d01d2d1f18dd5e606723a46e8_1438x283.jpg) ![](https://img.kancloud.cn/c6/87/c687401f1e52a30a8956ae396f759601_1417x277.jpg) 通過程序執行發現生產者總共發送 4 個消息,消費者 1 和消費者 2 分別分得兩個消息,并且是按照有序的一個接收一次消息。
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