导入依赖
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-configuration-processor</artifactId>
</dependency>
创建自己的配置映射类
使用configurationProperties注解并指明在配置文件中的前缀，然后用component注解注册进ioc容器。
我这里定义的两个静态内部类，同时创建了各自的实例，比如这个Email静态内部类中有三个属性，那么配置文件就可以是mq.myrabbit.email.queue来对静态内部类中的属性进行一个映射
/**
* 配置映射类
* @author houhaotong
*/
@Component
@ConfigurationProperties(prefix = "mq.myrabbit")
public class MyRabbitProperties {
/** 过期时间 */
private Long expire;
private final Email email=new Email();
private final Dead dead=new Dead();
/** 发送邮件的消息模型 */
public static class Email{
/** 发送邮件队列名 */
private String queue;
/** 发送邮件交换机名 */
private String exchange;
/** 发送邮件routingKey */
private String routingKey;
public String getQueue() {
return queue;
}
public void setQueue(String queue) {
this.queue = queue;
}
public String getExchange() {
return exchange;
}
public void setExchange(String exchange) {
this.exchange = exchange;
}
public String getRoutingKey() {
return routingKey;
}
public void setRoutingKey(String routingKey) {
this.routingKey = routingKey;
}
}
/** 死信消息模型（订单超时未支付） */
public static class Dead{
private String queue;
private String exchange;
private String routingKey;
/** 真实队列 */
private String realQueue;
private String prodExchange;
private String prodRoutingKey;
public String getQueue() {
return queue;
}
public void setQueue(String queue) {
this.queue = queue;
}
public String getExchange() {
return exchange;
}
public void setExchange(String exchange) {
this.exchange = exchange;
}
public String getRoutingKey() {
return routingKey;
}
public void setRoutingKey(String routingKey) {
this.routingKey = routingKey;
}
public String getRealQueue() {
return realQueue;
}
public void setRealQueue(String realQueue) {
this.realQueue = realQueue;
}
public String getProdExchange() {
return prodExchange;
}
public void setProdExchange(String prodExchange) {
this.prodExchange = prodExchange;
}
public String getProdRoutingKey() {
return prodRoutingKey;
}
public void setProdRoutingKey(String prodRoutingKey) {
this.prodRoutingKey = prodRoutingKey;
}
}
public Long getExpire() {
return expire;
}
public void setExpire(Long expire) {
this.expire = expire;
}
public Email getEmail() {
return email;
}
public Dead getDead() {
return dead;
}
}
在yml中写配置
项目编译后，在yml中写配置会自动显示出来自己定义的配置映射类所具有的属性，如下图所示：
image.png
然后在yml配置文件中，写各个配置，配置类就会读取到了
mq:
myrabbit:
#邮件发送消息模型
email:
queue: seckill.email.queue
exchange: seckill.email.exchange
routing-key: seckill.email.routingKey
dead:
queue: seckill.dead.queue
exchange: seckill.dead.exchange
routing-key: seckill.dead.routingKey
#设置过期时间
expire: 1800000
