java dataOutputStream

,

,?20,180?2070(?ASCII?F),?F?,?

,?\?\F:\\fileio\test.txt

JavaJava2019?JavaIT

1

Spring Cloud? Dubbo? Dubbox? Dubbo?26%?springcloud-zuul?

2?

RPC Dubbo? dubbox?gRPC?hessian?

3?

1/4

4?

shiro?spring security?

5?

ActiveMQ?RabbitMQ?Kafka?RocketMQ

6

RedisehcacheMemcached?

7?

Solr?elasticsearch?Lucene?Solr?elasticsearch?

Java?IT?