package com.hai.config; import io.netty.handler.codec.mqtt.MqttConnAckVariableHeader; import io.netty.handler.codec.mqtt.MqttConnectVariableHeader; import io.netty.handler.codec.mqtt.MqttMessageIdVariableHeader; import io.netty.handler.codec.mqtt.MqttPublishVariableHeader; import lombok.extern.slf4j.Slf4j; import javax.annotation.PostConstruct; import org.eclipse.paho.client.mqttv3.*; import org.eclipse.paho.client.mqttv3.persist.MemoryPersistence; import org.springframework.beans.factory.annotation.Value; import org.springframework.context.annotation.Configuration; import java.util.Random; @Configuration @Slf4j public class MqttProviderConfig { // @Value("${spring.mqtt.username}") private String username; // @Value("${spring.mqtt.password}") private String password; // @Value("${spring.mqtt.url}") private String hostUrl; /* @Value("${spring.mqtt.client.id}") private String clientId; @Value("${spring.mqtt.default.topic}") private String defaultTopic;*/ /** * 客户端对象 */ private MqttClient client; /** * 在bean初始化后连接到服务器 */ // @PostConstruct public void init() { connect("provider-" + System.currentTimeMillis()); } /* @PostConstruct public void init(String clientId) { connect(clientId); }*/ /** * 客户端连接服务端 */ public void connect(String clientId){ try{ //创建MQTT客户端对象 client = new MqttClient(hostUrl,clientId,new MemoryPersistence()); //连接设置 MqttConnectOptions options = new MqttConnectOptions(); //是否清空session,设置false表示服务器会保留客户端的连接记录(订阅主题,qos),客户端重连之后能获取到服务器在客户端断开连接期间推送的消息 //设置为true表示每次连接服务器都是以新的身份 options.setCleanSession(false); //设置连接用户名 options.setUserName(username); //设置连接密码 options.setPassword(password.toCharArray()); //设置超时时间,单位为秒 options.setConnectionTimeout(100); //设置心跳时间 单位为秒,表示服务器每隔 1.5*20秒的时间向客户端发送心跳判断客户端是否在线 options.setKeepAliveInterval(20); options.setAutomaticReconnect(false); // 设置遗嘱消息的话题,若客户端和服务器之间的连接意外断开,服务器将发布客户端的遗嘱信息 // options.setWill("willTopic",(clientId + "与服务器断开连接").getBytes(),0,false); //设置回调 client.setCallback(new MqttProviderCallBack()); client.connect(options); } catch(MqttException e){ e.printStackTrace(); } } public void publish(int qos,boolean retained,String topic,String message) { if (client == null) { init(); } if (!client.isConnected()) { init(); } try { MqttMessage mqttMessage = new MqttMessage(); mqttMessage.setQos(qos); mqttMessage.setRetained(retained); mqttMessage.setPayload(message.getBytes()); // 主题的目的地,用于发布/订阅信息 MqttTopic mqttTopic = client.getTopic(topic); //提供一种机制来跟踪消息的传递进度 //用于在以非阻塞方式(在后台运行)执行发布是跟踪消息的传递进度 MqttDeliveryToken token; //将指定消息发布到主题,但不等待消息传递完成,返回的token可用于跟踪消息的传递状态 //一旦此方法干净地返回,消息就已被客户端接受发布,当连接可用,将在后台完成消息传递。 token = mqttTopic.publish(mqttMessage); token.waitForCompletion(); } catch (MqttException e) { e.printStackTrace(); } catch (Exception e) { e.printStackTrace(); } } public static byte[] sendPrinterRrCodeBytest(String printText, int pageCount) { try { byte[] by = printText.getBytes(); byte[] msgByte = new byte[by.length + 16]; // 写入缓存 msgByte[0] = 29; msgByte[1] = 40; msgByte[2] = 107; msgByte[3] = (byte)(by.length+3); msgByte[4] = 0; msgByte[5] = 49; msgByte[6] = 80; msgByte[7] = 48; // (byte)0x30); int index = 7; for (int i = 0; i < by.length; i++) { index = index+1; msgByte[index] = by[i]; } // 打印缓存中的数据 msgByte[index + 1] = 29; msgByte[index + 2] = 40; msgByte[index + 3] = 107; msgByte[index + 4] = (byte)(by.length+3); msgByte[index + 5] = 0; msgByte[index + 6] = 49; msgByte[index + 7] = 81; msgByte[index + 8] = 48; // (byte)0x30); byte[] array = new byte[msgByte.length + 9]; array[0] = 30; array[1] = 16; array[2] =(byte) pageCount;//打印份数 int num = array.length - 5; array[3] = (byte)(num >> 8); //array[4] = (byte)((uint)num & 0xFFu); array[4] = (byte)(num & 0xFF); for (int i = 0; i < msgByte.length; i++) { array[i+ 5] = msgByte[i]; } array[array.length - 4] = 27; array[array.length - 3] = 99; byte[] crc16CodeArray = getCRC(msgByte); array[array.length - 2] = crc16CodeArray[0]; array[array.length - 1] = crc16CodeArray[1]; return array; } catch (Exception ex) { System.out.println(ex.getStackTrace()); } return null; } private static byte[] getCRC(byte[] bytes) { int crc = 0xFFFF; // 初始值 for (byte b : bytes) { crc = (crc >> 8) ^ CRC16Table[(crc ^ b) & 0xff]; } byte[] b = new byte[2]; b[0] = (byte) ((crc >> 8)^0xff); b[1] = (byte) ((crc & 0xff)^0xff); return b; } private static int[] CRC16Table = { 0x0000, 0x1189, 0x2312, 0x329b, 0x4624, 0x57ad, 0x6536, 0x74bf, 0x8c48, 0x9dc1, 0xaf5a, 0xbed3, 0xca6c, 0xdbe5, 0xe97e, 0xf8f7, 0x1081, 0x0108, 0x3393, 0x221a, 0x56a5, 0x472c, 0x75b7, 0x643e, 0x9cc9, 0x8d40, 0xbfdb, 0xae52, 0xdaed, 0xcb64, 0xf9ff, 0xe876, 0x2102, 0x308b, 0x0210, 0x1399, 0x6726, 0x76af, 0x4434, 0x55bd, 0xad4a, 0xbcc3, 0x8e58, 0x9fd1, 0xeb6e, 0xfae7, 0xc87c, 0xd9f5, 0x3183, 0x200a, 0x1291, 0x0318, 0x77a7, 0x662e, 0x54b5, 0x453c, 0xbdcb, 0xac42, 0x9ed9, 0x8f50, 0xfbef, 0xea66, 0xd8fd, 0xc974, 0x4204, 0x538d, 0x6116, 0x709f, 0x0420, 0x15a9, 0x2732, 0x36bb, 0xce4c, 0xdfc5, 0xed5e, 0xfcd7, 0x8868, 0x99e1, 0xab7a, 0xbaf3, 0x5285, 0x430c, 0x7197, 0x601e, 0x14a1, 0x0528, 0x37b3, 0x263a, 0xdecd, 0xcf44, 0xfddf, 0xec56, 0x98e9, 0x8960, 0xbbfb, 0xaa72, 0x6306, 0x728f, 0x4014, 0x519d, 0x2522, 0x34ab, 0x0630, 0x17b9, 0xef4e, 0xfec7, 0xcc5c, 0xddd5, 0xa96a, 0xb8e3, 0x8a78, 0x9bf1, 0x7387, 0x620e, 0x5095, 0x411c, 0x35a3, 0x242a, 0x16b1, 0x0738, 0xffcf, 0xee46, 0xdcdd, 0xcd54, 0xb9eb, 0xa862, 0x9af9, 0x8b70, 0x8408, 0x9581, 0xa71a, 0xb693, 0xc22c, 0xd3a5, 0xe13e, 0xf0b7, 0x0840, 0x19c9, 0x2b52, 0x3adb, 0x4e64, 0x5fed, 0x6d76, 0x7cff, 0x9489, 0x8500, 0xb79b, 0xa612, 0xd2ad, 0xc324, 0xf1bf, 0xe036, 0x18c1, 0x0948, 0x3bd3, 0x2a5a, 0x5ee5, 0x4f6c, 0x7df7, 0x6c7e, 0xa50a, 0xb483, 0x8618, 0x9791, 0xe32e, 0xf2a7, 0xc03c, 0xd1b5, 0x2942, 0x38cb, 0x0a50, 0x1bd9, 0x6f66, 0x7eef, 0x4c74, 0x5dfd, 0xb58b, 0xa402, 0x9699, 0x8710, 0xf3af, 0xe226, 0xd0bd, 0xc134, 0x39c3, 0x284a, 0x1ad1, 0x0b58, 0x7fe7, 0x6e6e, 0x5cf5, 0x4d7c, 0xc60c, 0xd785, 0xe51e, 0xf497, 0x8028, 0x91a1, 0xa33a, 0xb2b3, 0x4a44, 0x5bcd, 0x6956, 0x78df, 0x0c60, 0x1de9, 0x2f72, 0x3efb, 0xd68d, 0xc704, 0xf59f, 0xe416, 0x90a9, 0x8120, 0xb3bb, 0xa232, 0x5ac5, 0x4b4c, 0x79d7, 0x685e, 0x1ce1, 0x0d68, 0x3ff3, 0x2e7a, 0xe70e, 0xf687, 0xc41c, 0xd595, 0xa12a, 0xb0a3, 0x8238, 0x93b1, 0x6b46, 0x7acf, 0x4854, 0x59dd, 0x2d62, 0x3ceb, 0x0e70, 0x1ff9, 0xf78f, 0xe606, 0xd49d, 0xc514, 0xb1ab, 0xa022, 0x92b9, 0x8330, 0x7bc7, 0x6a4e, 0x58d5, 0x495c, 0x3de3, 0x2c6a, 0x1ef1, 0x0f78 }; }