JMS JMS Topic(1) 1.消息的生产者 import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; import javax.jms.JMSException; import javax.jms.ObjectMessage; import javax.jms.Session; import javax.jms.TextMessage; import javax.jms.Topic; import javax.jms.TopicConnection; impo