rabbitMQ点对点发送消息

package route; import com.rabbitmq.client.ConnectionFactory; import com.rabbitmq.client.Connection; import com.rabbitmq.client.Channel; import com.rabbitmq.client.MessageProperties; public class EmitLogDirect { private static final String EXCHANGE_NAME = "direct_logs"; private static final String QUENE_NAME = "direct_queue"; private static final String BINDING_KEY = "key"; public static void main(String[] argv) throws Exception { ConnectionFactory factory = new ConnectionFactory(); factory.setHost("172.16.50.19"); Connection connection = factory.newConnection(); Channel channel = connection.createChannel(); channel.exchangeDeclare(EXCHANGE_NAME, "direct"); channel.queueDeclare(QUENE_NAME, true, false, false, null); channel.queueBind(QUENE_NAME, EXCHANGE_NAME, BINDING_KEY); String severity = getSeverity(argv); String message = getMessage(argv); channel.basicPublish(EXCHANGE_NAME, BINDING_KEY, MessageProperties.PERSISTENT_TEXT_PLAIN, message.getBytes()); System.out.println(" [x] Sent '" + BINDING_KEY + "':'" + message + "'"); channel.close(); connection.close(); } private static String getSeverity(String[] strings){ if (strings.length < 1) return "info"; return strings[0]; } private static String getMessage(String[] strings){ if (strings.length < 2) return "Hello World!"; return joinStrings(strings, " ", 1); } private static String joinStrings(String[] strings, String delimiter, int startIndex) { int length = strings.length; if (length == 0 ) return ""; if (length < startIndex ) return ""; StringBuilder words = new StringBuilder(strings[startIndex]); for (int i = startIndex + 1; i < length; i++) { words.append(delimiter).append(strings[i]); } return words.toString(); } }