如何实现MQTT的Java代码

MQTT(消息队列遥测传输)是ISO 标准(ISO/IEC PRF 20922)下基于发布/订阅]范式的消息协议。它工作在 TCP/IP协议族上，是为硬件性能低下的远程设备以及网络状况糟糕的情况下而设计的发布/订阅型消息协议，为此，它需要一个消息中间件 。

为rabbit开启mqtt

1.在yml文件中添加一个mqtt的端口映射1883:1883 

<pre class="prettyprint hljs less" style="padding: 0.5em; font-family: Menlo, Monaco, Consolas, &quot;Courier New&quot;, monospace; color: rgb(68, 68, 68); border-radius: 4px; display: block; margin: 0px 0px 1.5em; font-size: 14px; line-height: 1.5em; word-break: break-all; overflow-wrap: break-word; white-space: pre; background-color: rgb(246, 246, 246); border: none; overflow-x: auto; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration-style: initial; text-decoration-color: initial;">restart: always
container_name: rabbitmq
ports:
  - 5672:5672
  - 15672:15672
  - 1883:1883 #mqtt
volumes:
  - ./data:/var/lib/rabbitmq</pre>

2.进入rabbit的docker容器内部 

<pre class="hljs nginx" style="padding: 0.5em; font-family: Menlo, Monaco, Consolas, &quot;Courier New&quot;, monospace; color: rgb(68, 68, 68); border-radius: 4px; display: block; margin: 0px 0px 0.75em; font-size: 14px; line-height: 1.5em; word-break: break-all; overflow-wrap: break-word; white-space: pre; background-color: rgb(246, 246, 246); border: none; overflow-x: auto; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration-style: initial; text-decoration-color: initial;">docker exec -it rabbitmq bash</pre>

3.rabbit内运行 

<pre class="hljs bash" style="padding: 0.5em; font-family: Menlo, Monaco, Consolas, &quot;Courier New&quot;, monospace; color: rgb(68, 68, 68); border-radius: 4px; display: block; margin: 0px 0px 0.75em; font-size: 14px; line-height: 1.5em; word-break: break-all; overflow-wrap: break-word; white-space: pre; background-color: rgb(246, 246, 246); border: none; overflow-x: auto; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration-style: initial; text-decoration-color: initial;">rabbitmq-plugins enable rabbitmq_mqtt</pre>

4.在网页视图中查看mqtt


使用MQTT软件测试mqtt

1.连接mqtt


2.在MQTT软中添加订阅


在RabbitMQ的队列中查看


3.测试

方法一、在Rabbitmq网页发送消息


方法二、自己给自己发


一、发送消息

  1. 创建springBoot项目，在xml中导入springBoot项目所需要配置以及相关依赖包 
<pre class="prettyprint hljs xml" style="padding: 0.5em; font-family: Menlo, Monaco, Consolas, &quot;Courier New&quot;, monospace; color: rgb(68, 68, 68); border-radius: 4px; display: block; margin: 0px 0px 1.5em; font-size: 14px; line-height: 1.5em; word-break: break-all; overflow-wrap: break-word; white-space: pre; background-color: rgb(246, 246, 246); border: none; overflow-x: auto; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration-style: initial; text-decoration-color: initial;"><parent> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-parent</artifactId> <version>2.6.8</version> </parent> <dependencies> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> </dependency> <!--使用spring集成启动器，Spring集成提供了对消息传递和其他传输（如HTTP、TCP等）的抽象。--> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-integration</artifactId> </dependency> <dependency> <groupId>org.springframework.integration</groupId> <artifactId>spring-integration-mqtt</artifactId> </dependency> <dependency> <groupId>org.springframework.integration</groupId> <artifactId>spring-integration-stream</artifactId> </dependency> <dependency> <groupId>org.projectlombok</groupId> <artifactId>lombok</artifactId> </dependency> </dependencies></pre>

注意寻找依赖包：spring.io->projects->LEARN（右边）->2.6.10 GA Refence Doc.-> Documentation Overview ->7.Messaging-> Spring Integration: Auto-configuration for Spring Integration

  1. 创建配置类（2步骤可忽略，此地只为推导使用，配置类的正确使用方式见步骤6） 
<pre class="prettyprint hljs java" style="padding: 0.5em; font-family: Menlo, Monaco, Consolas, &quot;Courier New&quot;, monospace; color: rgb(68, 68, 68); border-radius: 4px; display: block; margin: 0px 0px 1.5em; font-size: 14px; line-height: 1.5em; word-break: break-all; overflow-wrap: break-word; white-space: pre; background-color: rgb(246, 246, 246); border: none; overflow-x: auto; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration-style: initial; text-decoration-color: initial;">//修正官网后的(这个配置文件还不可以使用，正确的使用方式见在后面--此地是视频课程讲的讲解中推导步骤，可以省略不看)
@Configuration
public class  MqttConfig  { 
    @Bean
    public  MessageChannel mqttInputChannel()  { return new DirectChannel();
    }

    /**
     * 连接mqtt服务器的工厂
     * @return */
    @Bean
    public  MqttPahoClientFactory mqttClientFactory()  { 
        DefaultMqttPahoClientFactory factory = new DefaultMqttPahoClientFactory();
        MqttConnectOptions options = new MqttConnectOptions();
        options.setServerURIs(new String[] { "tcp://10.9.48.165:1883" });
        options.setUserName("guest");
        options.setPassword("guest".toCharArray());
        factory.setConnectionOptions(options); return factory;
    }

    @Bean
    public  MessageProducer  inbound(MessageChannel mqttInputChannel,MqttPahoClientFactory mqttClientFactory)  { 
        MqttPahoMessageDrivenChannelAdapter adapter =
                new MqttPahoMessageDrivenChannelAdapter("springclient",mqttClientFactory, "zheshisha");
        adapter.setCompletionTimeout(5000);
        adapter.setConverter(new DefaultPahoMessageConverter());
        //设置一次需要应答
        adapter.setQos(1);
        //设置对外的通道
        adapter.setOutputChannel(mqttInputChannel); return adapter;
    }
}</pre>
<pre class="prettyprint hljs java" style="padding: 0.5em; font-family: Menlo, Monaco, Consolas, &quot;Courier New&quot;, monospace; color: rgb(68, 68, 68); border-radius: 4px; display: block; margin: 0px 0px 1.5em; font-size: 14px; line-height: 1.5em; word-break: break-all; overflow-wrap: break-word; white-space: pre; background-color: rgb(246, 246, 246); border: none; overflow-x: auto; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration-style: initial; text-decoration-color: initial;">//官方文档
@Bean
public  MessageChannel mqttInputChannel()  { return new DirectChannel();
}

@Bean
public  MessageProducer inbound()  { 
    MqttPahoMessageDrivenChannelAdapter adapter =
            new MqttPahoMessageDrivenChannelAdapter("tcp://localhost:1883", "testClient", "topic1", "topic2");
    adapter.setCompletionTimeout(5000);
    adapter.setConverter(new DefaultPahoMessageConverter());
    adapter.setQos(1);
    //问题所在：mqttInputChannel()这个是调用方法，而在这个方法上面加一一个注解@Bean相当于白加~~~
    adapter.setOutputChannel(mqttInputChannel()); return adapter;
}</pre>
  1. 创建接口 
<pre class="prettyprint hljs kotlin" style="padding: 0.5em; font-family: Menlo, Monaco, Consolas, &quot;Courier New&quot;, monospace; color: rgb(68, 68, 68); border-radius: 4px; display: block; margin: 0px 0px 1.5em; font-size: 14px; line-height: 1.5em; word-break: break-all; overflow-wrap: break-word; white-space: pre; background-color: rgb(246, 246, 246); border: none; overflow-x: auto; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration-style: initial; text-decoration-color: initial;">@MessagingGateway(defaultRequestChannel =  "mqttOutboundChannel")
public interface  MyGateway  { 
    void sendToMqtt(String data);
}</pre>
  1. 启动类 
<pre class="prettyprint hljs less" style="padding: 0.5em; font-family: Menlo, Monaco, Consolas, &quot;Courier New&quot;, monospace; color: rgb(68, 68, 68); border-radius: 4px; display: block; margin: 0px 0px 1.5em; font-size: 14px; line-height: 1.5em; word-break: break-all; overflow-wrap: break-word; white-space: pre; background-color: rgb(246, 246, 246); border: none; overflow-x: auto; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration-style: initial; text-decoration-color: initial;">@SpringBootApplication
//扫描整合的注解
@IntegrationComponentScan
public class MqttStartApp { 
    public static void main(String[] args) { 
        SpringApplication.run(MqttStartApp.class, args);
    }
}</pre>
  1. 编写controller类测试 
<pre class="prettyprint hljs kotlin" style="padding: 0.5em; font-family: Menlo, Monaco, Consolas, &quot;Courier New&quot;, monospace; color: rgb(68, 68, 68); border-radius: 4px; display: block; margin: 0px 0px 1.5em; font-size: 14px; line-height: 1.5em; word-break: break-all; overflow-wrap: break-word; white-space: pre; background-color: rgb(246, 246, 246); border: none; overflow-x: auto; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration-style: initial; text-decoration-color: initial;">@RestController
public class  MqttController  { 

    private MyGateway myGateway;

    @Autowired
    public void setMyGateway(MyGateway myGateway) { 
        this.myGateway = myGateway;
    }

    @PostMapping("/msg")
    public String sendMsg(String msg){ 
        myGateway.sendToMqtt(msg); return "success";
    }
}</pre>
  1. 修改后的配置类 
<pre class="prettyprint hljs java" style="padding: 0.5em; font-family: Menlo, Monaco, Consolas, &quot;Courier New&quot;, monospace; color: rgb(68, 68, 68); border-radius: 4px; display: block; margin: 0px 0px 1.5em; font-size: 14px; line-height: 1.5em; word-break: break-all; overflow-wrap: break-word; white-space: pre; background-color: rgb(246, 246, 246); border: none; overflow-x: auto; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration-style: initial; text-decoration-color: initial;">@Configuration
public class  MqttConfig  { 

    /**
     * 连接mqtt服务器的工厂
     * @return */
    @Bean
    public  MqttPahoClientFactory mqttClientFactory()  { 
        DefaultMqttPahoClientFactory factory = new DefaultMqttPahoClientFactory();
        MqttConnectOptions options = new MqttConnectOptions();
        options.setServerURIs(new String[] { "tcp://10.9.48.165:1883" });
        options.setUserName("guest");
        options.setPassword("guest".toCharArray());
        factory.setConnectionOptions(options); return factory;
    }

    @Bean
    public  MessageChannel mqttOutboundChannel()  { return new DirectChannel();
    }

    @Bean
    @ServiceActivator(inputChannel = "mqttOutboundChannel") //inputChannel的名字必须和上面的MessageChannel的方法名保持一致
    public  MessageHandler mqttOutbound()  { 
        MqttPahoMessageHandler messageHandler =
                new MqttPahoMessageHandler("testClient", mqttClientFactory());
        messageHandler.setAsync(true);
        messageHandler.setDefaultTopic("zheshisha"); return messageHandler;
    }

}</pre>

二、收消息

在配配置文件中加入 

<pre class="prettyprint hljs java" style="padding: 0.5em; font-family: Menlo, Monaco, Consolas, &quot;Courier New&quot;, monospace; color: rgb(68, 68, 68); border-radius: 4px; display: block; margin: 0px 0px 1.5em; font-size: 14px; line-height: 1.5em; word-break: break-all; overflow-wrap: break-word; white-space: pre; background-color: rgb(246, 246, 246); border: none; overflow-x: auto; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration-style: initial; text-decoration-color: initial;">/**
 * 收消息的通道，注意实际开发中和发的可能不在一起
 * @return */
@Bean
public  MessageChannel mqttInputChannel()  { return new DirectChannel();
}

@Bean
public  MessageProducer inbound()  { 
    MqttPahoMessageDrivenChannelAdapter adapter =
            new MqttPahoMessageDrivenChannelAdapter("tcp://10.9.48.165:1883", "testClient", "chixihua");
    adapter.setCompletionTimeout(5000);
    adapter.setConverter(new DefaultPahoMessageConverter());
    adapter.setQos(1);
    adapter.setOutputChannel(mqttInputChannel()); return adapter;
}

/**
 * 收消息的处理器，用于如何处理消息
 * mqttInputChannel 代表的是收消息的通道对象的id
 * @return */
@Bean
@ServiceActivator(inputChannel = "mqttInputChannel")
public  MessageHandler handler()  { return new MessageHandler() { 

        @Override
        public  void  handleMessage(Message<?> message)  throws  MessagingException  { 
            System.out.println(message.getPayload());
        }

    };
}</pre>

三、SpringBoot整合MQTT

  1. 导入依赖包 
<pre class="prettyprint hljs xml" style="padding: 0.5em; font-family: Menlo, Monaco, Consolas, &quot;Courier New&quot;, monospace; color: rgb(68, 68, 68); border-radius: 4px; display: block; margin: 0px 0px 1.5em; font-size: 14px; line-height: 1.5em; word-break: break-all; overflow-wrap: break-word; white-space: pre; background-color: rgb(246, 246, 246); border: none; overflow-x: auto; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration-style: initial; text-decoration-color: initial;"><!--使用spring集成启动器，Spring集成提供了对消息传递和其他传输（如HTTP、TCP等）的抽象。--> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-integration</artifactId> </dependency> <dependency> <groupId>org.springframework.integration</groupId> <artifactId>spring-integration-mqtt</artifactId> </dependency> <dependency> <groupId>org.springframework.integration</groupId> <artifactId>spring-integration-stream</artifactId> </dependency></pre>
  1. 创建配置类 
<pre class="prettyprint hljs java" style="padding: 0.5em; font-family: Menlo, Monaco, Consolas, &quot;Courier New&quot;, monospace; color: rgb(68, 68, 68); border-radius: 4px; display: block; margin: 0px 0px 1.5em; font-size: 14px; line-height: 1.5em; word-break: break-all; overflow-wrap: break-word; white-space: pre; background-color: rgb(246, 246, 246); border: none; overflow-x: auto; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration-style: initial; text-decoration-color: initial;">@Configuration
public class  MqttConfig  { 

    @Bean
    public  MqttConnectOptions options(){ 
        MqttConnectOptions mqttConnectOptions=new MqttConnectOptions();
        mqttConnectOptions.setServerURIs(new String[] { "tcp://10.9.48.190:1883" });
        mqttConnectOptions.setUserName("dc3");
        mqttConnectOptions.setPassword("dc3".toCharArray()); return mqttConnectOptions;
    }

    /**
     * 创建连接工厂
     * @param options
     * @return */
    @Bean
    public  MqttPahoClientFactory  mqttPahoClientFactory(MqttConnectOptions options){ 
        DefaultMqttPahoClientFactory defaultMqttPahoClientFactory=new DefaultMqttPahoClientFactory();
        defaultMqttPahoClientFactory.setConnectionOptions(options); return defaultMqttPahoClientFactory;
    }

    @Bean
    public  MessageChannel messageInputChannel(){ return new DirectChannel();
    }

    @Bean
    public  MessageProducer  mqttInbound(MessageChannel messageInputChannel,  MqttPahoClientFactory mqttPahoClientFactory){ 
        MqttPahoMessageDrivenChannelAdapter adapter =
                new MqttPahoMessageDrivenChannelAdapter("testClient",mqttPahoClientFactory, "chixihua");
        adapter.setCompletionTimeout(5000);
        adapter.setConverter(new DefaultPahoMessageConverter());
        adapter.setQos(1);
        adapter.setOutputChannel(messageInputChannel); return adapter;
    }

}</pre>
  1. 配置消息处理的类 
<pre class="prettyprint hljs kotlin" style="padding: 0.5em; font-family: Menlo, Monaco, Consolas, &quot;Courier New&quot;, monospace; color: rgb(68, 68, 68); border-radius: 4px; display: block; margin: 0px 0px 1.5em; font-size: 14px; line-height: 1.5em; word-break: break-all; overflow-wrap: break-word; white-space: pre; background-color: rgb(246, 246, 246); border: none; overflow-x: auto; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration-style: initial; text-decoration-color: initial;">@Configuration
public class  MessageReceiverHandler  { 

    /**
     * 收到设备发送来的上行数据的时候执行，具体怎么做取决于业务，比如这里面可能是设备发来的一些传感器数据，我们需要保存并发送到统计平台
     * @return */
    @Bean
    @ServiceActivator(inputChannel = "messageInputChannel")
    public MessageHandler messageHandler(){ return message -> { 
            //获取到消息正文
            Object payload = message.getPayload();
            System.err.println(payload);
            //处理消息
            System.err.println("等下就处理消息");
        };
    }

}</pre>
  1. 在启动类添加注解 
<pre class="prettyprint hljs less" style="padding: 0.5em; font-family: Menlo, Monaco, Consolas, &quot;Courier New&quot;, monospace; color: rgb(68, 68, 68); border-radius: 4px; display: block; margin: 0px 0px 1.5em; font-size: 14px; line-height: 1.5em; word-break: break-all; overflow-wrap: break-word; white-space: pre; background-color: rgb(246, 246, 246); border: none; overflow-x: auto; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration-style: initial; text-decoration-color: initial;">@SpringBootApplication
@IntegrationComponentScan
public class MqttStartApp { 
    public static void main(String[] args) { 
        SpringApplication.run(MqttStartApp.class, args);
    }
}</pre>
#java#
全部评论
分享的这么详细，感谢楼主啊
点赞 回复 分享
发布于 2022-08-03 16:36

相关推荐

10-31 19:58
已编辑
嵩山少林武术职业学院 嵌入式软件开发
点赞 评论 收藏
分享
10-17 20:09
北京吉利学院 C++
点赞 评论 收藏
分享
10-19 13:39
门头沟学院 嵌入式软件开发
C语言面试题目 嵌入式C语言 常见关键字问题 面试题目常见
C语言&nbsp;1.static的用法&nbsp;作用于函数局部变量&nbsp;特点：初始化为0，运行一开始开辟内存，内存放在全局，增加了变量的存活时间&nbsp;作用于全局函数&nbsp;​&nbsp;特点：静态全局变量仅对当前文件可见，其他文件不可访问，其他文件可定义相同变量名，两者互不影响&nbsp;作用于全局变量&nbsp;​&nbsp;特点：静态函数只能在声明它的文件中可见，其他文件不能引用该函数，其他文件函数名可相同，互不影响&nbsp;2.volatile的用法&nbsp;​&nbsp;因为访问寄存器要比访问内存单元快的多，所以编译器一般都会做减少存取内存的优化，但有可能会读脏数据。当要求使用volatile声明变量值的时候，系统总是重新从它所在的内存读取数据，即使它前面的...
嵌入式就业-备战&gt;...
点赞 评论 收藏
分享
10-20 12:49
南昌工程学院 海外市场
点赞 评论 收藏
分享
10-20 18:41
门头沟学院 嵌入式软件开发
商汤科技 嵌入式软开OC面筋
一面项目OPENNI底层源码如何获取人体的骨骼数据如何获得Z轴的数据这个项目中遇到了哪些困难&nbsp;&nbsp;如何解决&nbsp;&nbsp;&nbsp;安全&nbsp;&nbsp;急停按钮C++&nbsp;&nbsp;指针和引用的区别函数模板和类模板的区别自己平常用过哪些泛型化&nbsp;&nbsp;点云sizeof&nbsp;一个类（两个int私有变量）&nbsp;&nbsp;&nbsp;是多少&nbsp;&nbsp;&nbsp;8算法题&nbsp;中序遍历说一个熟悉的操作系统启动的过程&nbsp;&nbsp;&nbsp;stm32的启动过程BIOS的源码看过么&nbsp;&nbsp;&nbsp;用汇编写的么&nbsp;&nbsp;还是&nbsp;C内存分页是怎么分的如何实现非连续分区的内存分配具体介绍一下链表这个容器相关的数据结构和底层实现&nbsp;&nbsp;&nbsp;双链表么如何从虚拟地址转换为物理地址&nbsp;&nbsp;&nbsp;软件上&nbsp;&nbsp;硬件上有两个方向&nbsp;做AI嵌入式&nbsp;&nbsp;gpu&nbsp;npu&nbsp;编译器优化...
Cpp与嵌入式那些事
点赞 评论 收藏
分享
1 5 评论
分享

招聘动态

查看更多

字节跳动

2025校园招聘

杉川机器人

2025校园招聘

快手Star

2025届招聘

快手

销售类投递专区

库洛游戏

全站热榜

正在热议
# 25届秋招总结 #
264379次浏览 2192人参与
# 0offer是寒冬太冷还是我太菜 #
887626次浏览 7910人参与
# 北方华创开奖 #
23688次浏览 260人参与
# 地方国企笔面经互助 #
2849次浏览 7人参与
# 学历or实习经历，哪个更重要 #
43486次浏览 329人参与
# 选完offer后，你后悔学本专业吗 #
13364次浏览 94人参与
# 查收我的offer竞争力报告 #
19619次浏览 256人参与
# 应届生被毁约被毁意向了怎么办 #
28242次浏览 243人参与
# 你最想要的公司福利是？ #
41912次浏览 146人参与
# 如何一边实习一边秋招 #
987464次浏览 12609人参与
# 一觉醒来，我觉醒了超级打工人系统 #
3325次浏览 36人参与
# 嵌入式转岗的难度怎么样 #
11209次浏览 251人参与
# 你最希望上岸的公司是？ #
76593次浏览 469人参与
# 如何写一份好简历 #
605123次浏览 8511人参与
# 面试体验感最好的是哪家？ #
83675次浏览 818人参与
# 机械应届生薪资要多少才合适？ #
12546次浏览 61人参与
# 牛客十周岁生日快乐 #
48780次浏览 759人参与
# 你认为第一份工作重要吗 #
5457次浏览 49人参与
# 985本硕1个中小厂offer，摆烂or继续努力 #
79964次浏览 589人参与
# 秋招OC许愿 #
228271次浏览 1881人参与
# 来聊聊机械薪资天花板是哪家 #
65786次浏览 445人参与
牛客网
牛客企业服务