Solve the problem of JVM memory overflow caused by RabbitMQ queue overlong QueueingConsumer

Reference: http://blog.sina.com.cn/s/blog_48d4cf2d0102w18d.html

spring integrated message queue rabbitmq:
https://my.oschina.net/never/blog/140368

RabbitMQ message queue (3): task distribution mechanism
http://www.cnblogs.com/qiyebao/p/4205626.html