tl-微服务专题12-分布式配置中心Config详解

喜欢ヅ旅行 2023-07-06 14:52 8阅读 0赞

mq:

@Autowired
        private RabbitTemplate rabbitTemplate;
    
        @RequestMapping("/autoRefresh")
        public Object autoRefresh() {
            Map<String,Object> sendMap = new HashMap<String,Object>();
            sendMap.put("isNew","Y");
            rabbitTemplate.convertAndSend("auto.refresh.topic","auto.refresh.all", JSON.toJSONString(sendMap));
            return "OK";
        }

@Component
    @Slf4j
    public class AutoRefresh {
    
        @Autowired
        private RestTemplate restTemplate;
    
        @Value("${server.port}")
        private Integer port;
    
        @RabbitListener(bindings = {
                @QueueBinding(value = @Queue("auto.refresh.8002"),exchange = @Exchange(value = "auto.refresh.topic",type = "topic"),key = "auto.refresh.#")
        })
        public void consumerTopicMsg(Message message) {
            log.info("端口:{},获取到刷新通知",port);
            HttpHeaders requestHeaders = new HttpHeaders();
            requestHeaders.setContentType(MediaType.APPLICATION_JSON);
            HttpEntity<String> requestEntity = new HttpEntity<String>(null, requestHeaders);
            restTemplate.postForEntity("http://localhost:"+port+"/actuator/refresh",requestEntity,Object.class);
    
    
        }
    }

由于rabbitMq不支持同一个消息同时被多个机器消费，所以是通过交换机形式来实现让这个消息被多个机器都消费：

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2l0d3htaW5n_size_16_color_FFFFFF_t_70][]

特别注意：  
1、跟自己的JDK版本一致！！！  
2、为什么要重新下载呢？Java的jdk里本来是有的，但是只支持128位，重新下载的这个Oracle提供的支持256位。

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2l0d3htaW5n_size_16_color_FFFFFF_t_70 1][]

![20200223162748387.png][]\{cipher\}表示这个密码是需要解密运算的。且整个两边加单引号。

[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2l0d3htaW5n_size_16_color_FFFFFF_t_70]: https://img-blog.csdnimg.cn/20200223160455526.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2l0d3htaW5n,size_16,color_FFFFFF,t_70
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2l0d3htaW5n_size_16_color_FFFFFF_t_70 1]: https://img-blog.csdnimg.cn/2020022316193664.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2l0d3htaW5n,size_16,color_FFFFFF,t_70
[20200223162748387.png]: https://img-blog.csdnimg.cn/20200223162748387.png