hurui
/
hai-server
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

提交代码

Browse Source
dev-discount
胡锐 2 years ago
parent feb32cd982
commit 5871852994
6 changed files with 486 additions and 1 deletions
Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL
Show Stats Download Patch File Download Diff File
  1. 2
      hai-cweb/src/main/java/com/cweb/controller/HighTestController.java
  2. 15
      hai-cweb/src/main/resources/dev/application.yml
  3. 4
      hai-service/pom.xml
  4. 39
      hai-service/src/main/java/com/hai/config/MqttProviderCallBack.java
  5. 208
      hai-service/src/main/java/com/hai/config/MqttProviderConfig.java
  6. 219
      hai-service/src/main/java/com/hai/config/PrintDemo.java

2
hai-cweb/src/main/java/com/cweb/controller/HighTestController.java
View File

File diff suppressed because one or more lines are too long

15
hai-cweb/src/main/resources/dev/application.yml
Unescape View File

@ -39,6 +39,21 @@ spring:
max-wait: -1 max-wait: -1
max-idle: 10 max-idle: 10
min-idle: 0 min-idle: 0
#MQTT配置信息
mqtt:
#MQTT服务地址
url: ws://139.159.177.244:8083/mqtt
#用户名
username: printer_provider
#密码
password: 123654
#客户端id(不能重复)
# client:
# id: provider-id
#MQTT默认的消息推送主题，实际可在调用接口是指定
# default:
# topic: topic
#配置日期返回至前台为时间戳 #配置日期返回至前台为时间戳
jackson: jackson:
serialization: serialization:

4
hai-service/pom.xml
Unescape View File

@ -264,6 +264,10 @@
<groupId>org.springframework.boot</groupId> <groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-websocket</artifactId> <artifactId>spring-boot-starter-websocket</artifactId>
</dependency> </dependency>
<dependency>
<groupId>org.springframework.integration</groupId>
<artifactId>spring-integration-mqtt</artifactId>
</dependency>
<dependency> <dependency>
<groupId>io.netty</groupId> <groupId>io.netty</groupId>
<artifactId>netty-all</artifactId> <artifactId>netty-all</artifactId>

39
hai-service/src/main/java/com/hai/config/MqttProviderCallBack.java
Unescape View File

@ -0,0 +1,39 @@
package com.hai.config;
import org.eclipse.paho.client.mqttv3.IMqttDeliveryToken;
import org.eclipse.paho.client.mqttv3.MqttCallback;
import org.eclipse.paho.client.mqttv3.MqttMessage;
import org.springframework.context.annotation.Configuration;
@Configuration
public class MqttProviderCallBack implements MqttCallback {
/**
* 与服务器断开
* @param throwable
*/
@Override
public void connectionLost(Throwable throwable) {
}
/**
* 消息到达回调
* @param s
* @param mqttMessage
* @throws Exception
*/
@Override
public void messageArrived(String s, MqttMessage mqttMessage) throws Exception {
System.out.println("消息到达");
}
/**
* 消息发布成功回调
* @param iMqttDeliveryToken
*/
@Override
public void deliveryComplete(IMqttDeliveryToken iMqttDeliveryToken) {
System.out.println("消息发布");
}
}

208
hai-service/src/main/java/com/hai/config/MqttProviderConfig.java
Unescape View File

@ -0,0 +1,208 @@
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;
@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(true);
//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);
// 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();
}
try {
MqttMessage mqttMessage = new MqttMessage();
mqttMessage.setQos(qos);
mqttMessage.setRetained(retained);
mqttMessage.setPayload(message.getBytes("UTF-8"));
// 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 void main(String[] args) {
System.out.println(sendPrinterRrCodeBytest("1213131", 1));
}
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 };
}

219
hai-service/src/main/java/com/hai/config/PrintDemo.java
Unescape View File

@ -0,0 +1,219 @@
package com.hai.config;
import org.junit.Test;
import java.io.UnsupportedEncodingException;
public class PrintDemo {
private String accessKeyId = "LTAI5tHHL3z6gpJbMmCg3zt2";
private String accessKeySecret = "CC9kAuqgdjKiE6jxSQHddFxGDCTpBQ";
private String instanceId = "post-cn-i7m2558ze01";
private String topic = "Box";
private String groupId= "GID_BOX";
private String endpoint= "onsmqtt.mq-internet-access.aliyuncs.com";
public static final int PAYTYPE_VOICE_NULL=2000;
public static final int PAYTYPE_VOICE_ALI=2001;
public static final int PAYTYPE_VOICE_QQ=2002;
public static final int PAYTYPE_VOICE_WECHAT=2003;
public static final int PAYTYPE_VOICE_JD=2004;
public static final int PAYTYPE_VOICE_UNION=2005;
public static final int PAYTYPE_VOICE_DIY7570=7570;
public static final int PAYTYPE_VOICE_DIY7571=7571;
public static final int PAYTYPE_VOICE_DIY7572=7572;
public static final int PAYTYPE_VOICE_DIY7573=7573;
public static final int PAYTYPE_VOICE_DIY7574=7574;
public static final int PAYTYPE_VOICE_DIY7575=7575;
public static final int PAYTYPE_VOICE_DIY7576=7576;
public static final int PAYTYPE_VOICE_DIY7577=7577;
public static final int PAYTYPE_VOICE_DIY7578=7578;
public static final int PAYTYPE_VOICE_DIY7579=7579;
@Test
public void Test(){
String imeiStr="352736082440754";//设备IMEI
String printText="1234\r\n";//打印文本
String voiceMsgId="2019022611153312312345";//消息ID
String voiceMsgMoney="1234";//播报金额
//获取打印内容
byte[] printData = getPrinterBytes(printText, 1, "");
System.out.println(bytes2Hex(printData));
//获取播报字符串
System.out.println(getStaticVoiceStr(imeiStr,voiceMsgId,voiceMsgMoney,PAYTYPE_VOICE_ALI));
//获取播报打印机指令
printData=getPrinterVoiceBytes(printText,1,"",imeiStr,voiceMsgId,voiceMsgMoney,PAYTYPE_VOICE_ALI);
System.out.println(bytes2Hex(printData));
/*
try {
com.aliyun.onsmqtt20200420.Client client = createClient(accessKeyId, accessKeySecret);
SendMessageRequest sendMessageRequest = new SendMessageRequest()
.setInstanceId("post-cn-i7m2558ze01")
.setMqttTopic("Box/p2p/GID_BOX@@@359ac67b25c11b8")
.setPayload(bytes2Hex(printData));
SendMessageResponse sendMessageResponse = client.sendMessage(sendMessageRequest);
System.out.println(sendMessageResponse.getBody().msgId);
} catch (Exception e) {
e.printStackTrace();
}*/
}
/**
* 使用AK&SK初始化账号Client
* @param accessKeyId
* @param accessKeySecret
* @return Client
* @throws Exception
*/
/* public com.aliyun.onsmqtt20200420.Client createClient(String accessKeyId, String accessKeySecret) throws Exception {
Config config = new Config()
// 您的AccessKey ID
.setAccessKeyId(accessKeyId)
// 您的AccessKey Secret
.setAccessKeySecret(accessKeySecret);
// 访问的域名
config.endpoint = endpoint;
return new com.aliyun.onsmqtt20200420.Client(config);
}*/
/**
* 支付播报固定语音字节数组
* @param imeiStr IMEI设备唯一标识
* @param msgId 交易序列号，不大于32字节，保证唯一
* @param moneyStr 播报金额，最多两位小数
* @param payType 支付类型
* @return
*/
public static byte[] getStaticVoiceBytes(String imeiStr,String msgId,String moneyStr,int payType){
return getStaticVoiceStr(imeiStr,msgId,moneyStr,payType).getBytes();
}
/**
* 支付播报固定语音字符串
* @param imeiStr IMEI设备唯一标识
* @param msgId 交易序列号，不大于32字节，保证唯一
* @param moneyStr 播报金额，最多两位小数
* @param payType 支付类型
* @return
*/
public static String getStaticVoiceStr(String imeiStr,String msgId,String moneyStr,int payType){
String str=imeiStr+"|1007|"+msgId+"|"+moneyStr+"|"+payType;
return str;
}
/**
* 获取打印内容，适用于云打印机
* @param printText 打印文本
* @param pageCount 打印联数
* @param encodingStr 编码方式，默认UTF-8
* @return
*/
public static byte[] getPrinterBytes(final String printText,
final int pageCount, String encodingStr) {
try {
if(encodingStr.equals("")){
encodingStr="UTF-8";
}
byte[] msgByte = printText.getBytes(encodingStr);
// 消息数组
final byte[] dataByte = new byte[msgByte.length + 9];
dataByte[0] = 0x1E;
dataByte[1] = 0x10;
dataByte[2] = (byte) pageCount;// 打印多联
// 有效数据长度
final int len = dataByte.length - 5;
dataByte[3] = (byte) (len >> 8);
dataByte[4] = (byte) (len & 0xff);
// 数据内容
System.arraycopy(msgByte, 0, dataByte, 5, msgByte.length);
// 标识字节
dataByte[dataByte.length - 4] = 0x1b;
dataByte[dataByte.length - 3] = 0x63;
// 打印内容CRC校验
final byte[] dtCRC = getCRC(msgByte);
dataByte[dataByte.length - 2] = (byte) (dtCRC[0]);
dataByte[dataByte.length - 1] = (byte) (dtCRC[1]);
msgByte = dataByte;
return msgByte;
} catch (Exception ex) {
System.out.println(ex.getStackTrace());
}
return null;
}
public static byte[] getPrinterVoiceBytes(String printTxt,int pageCount,String encodingStr,String imeiStr,String msgId,String moneyStr,int payType){
byte[] voiceArray=getStaticVoiceBytes(imeiStr, msgId, moneyStr, payType);
byte[] printerArray=getPrinterBytes(printTxt,pageCount,encodingStr);
byte[] data=new byte[voiceArray.length+printerArray.length];
System.arraycopy(printerArray, 0, data, 0, printerArray.length);
System.arraycopy(voiceArray, 0, data, printerArray.length, voiceArray.length);
return data;
}
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 };
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 final char[] HEXES = { '0', '1', '2', '3', '4', '5', '6',
'7', '8', '9', 'a', 'b', 'c', 'd', 'e', 'f' };
/**
* byte数组 转换成 16进制小写字符串
*/
private static String bytes2Hex(byte[] bytes) {
if (bytes == null || bytes.length == 0) {
return null;
}
StringBuilder hex = new StringBuilder();
for (byte b : bytes) {
hex.append(HEXES[(b >> 4) & 0x0F]);
hex.append(HEXES[b & 0x0F]);
}
return hex.toString();
}
}
Write Preview
Loading…
Cancel
Save