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springboot集成camel、rabbitmq

司马吹风 2022-03-30 阅读 78
java后端

1、rabbitmq配置类

@Configuration
public class RabbitMqConfig {
    @Value("${rabbitMq.host}")
    private String host;
    @Value("${rabbitMq.port}")
    private Integer port;
    @Value("${rabbitMq.username}")
    private String username;
    @Value("${rabbitMq.password}")
    private String password;
    @Value("${rabbitMq.vhost}")
    private String vhost;

    @Value("${rabbitmq2.host}")
    private String host2;
    @Value("${rabbitmq2.port}")
    private Integer port2;
    @Value("${rabbitmq2.username}")
    private String username2;
    @Value("${rabbitmq2.password}")
    private String password2;
    @Value("${rabbitmq2.vhost}")
    private String vhost2;

    @Bean("customConnectionFactory")
    public ConnectionFactory customConnectionFactory(){
        try {
            ConnectionFactory connectionFactory = new ConnectionFactory();
            connectionFactory.setHost(host);
            connectionFactory.setPort(port);
            connectionFactory.setUsername(username);
            connectionFactory.setPassword(password);
            connectionFactory.setVirtualHost(vhost);
            return connectionFactory;
        } catch (Exception e) {
            e.printStackTrace();
        }
        return null;
    }

    @Bean("connectionFactory2")
    public ConnectionFactory connectionFactory2(){
        try {
            ConnectionFactory connectionFactory = new ConnectionFactory();
            connectionFactory.setHost(host2);
            connectionFactory.setPort(port2);
            connectionFactory.setUsername(username2);
            connectionFactory.setPassword(password2);
            connectionFactory.setVirtualHost(vhost2);
            return connectionFactory;
        } catch (Exception e) {
            e.printStackTrace();
        }
        return null;
    }
}

2、yml参数,connectionFactory=#customConnectionFactory用于指定配置的connectionFactory,如果只用到一个rabbitmq,可以省略该参数,rabbitmq:exchangeNamequeue=dataSender&durable=True&passive=True,rabbitmq会自动匹配factory

rabbitMq:
  host: 127.0.0.1
  port: 5672
  username: root
  password: root
  vhost: /
  constant: rabbitmq:exchangeName?queue=dataSender&durable=True&passive=True&connectionFactory=#customConnectionFactory

rabbitmq2:
  host: 127.0.0.1
  port: 5672
  username: root
  password: root
  routingKey: test
  vhost: /
  constant: rabbitmq:exchangeName2?connectionFactory=#connectionFactory2&exchangeType=topic&autoDelete=false

3、from实现路由

    @Value("${rabbitMq.constant}")
    protected String rebbitmqConstant;
    @Value("${rabbitmq2.constant}")
    protected String rebbitmqConstant2;
    @Value("${rabbitmq2.routingKey}")
    protected String routingKey;

    @Override
    public void configure() throws Exception {
        from(rebbitmqConstant)
                .process(exchange->{
                    exchange.getIn().setHeader("rabbitmq.ROUTING_KEY",routingKey);
                })
                .to(rebbitmqConstant2);
    }
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