4.0.0 org.example spring_demo pom 1.0-SNAPSHOT spring_annotation 8 8 org.springframework spring-context 5.2.2.RELEASE junit junit RELEASE test com.rabbitmq amqp-client 5.3.0 mysql mysql-connector-java 8.0.17 c3p0 c3p0 0.9.1.2 com.alibaba druid 1.1.13