86191 2024-09-30 09:25:55 +08:00
commit d38d77b331
20 changed files with 263 additions and 734 deletions

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@ -102,6 +102,31 @@
<artifactId>org.eclipse.paho.client.mqttv3</artifactId> <artifactId>org.eclipse.paho.client.mqttv3</artifactId>
<version>1.2.5</version> <version>1.2.5</version>
</dependency> </dependency>
<dependency>
<groupId>com.aliyun</groupId>
<artifactId>ecs20140526</artifactId>
<version>5.1.8</version>
</dependency>
<dependency>
<groupId>com.aliyun</groupId>
<artifactId>tea-openapi</artifactId>
<version>0.3.2</version>
</dependency>
<dependency>
<groupId>com.aliyun</groupId>
<artifactId>tea-console</artifactId>
<version>0.0.1</version>
</dependency>
<dependency>
<groupId>com.aliyun</groupId>
<artifactId>tea-util</artifactId>
<version>0.2.21</version>
</dependency>
</dependencies> </dependencies>
<build> <build>

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@ -0,0 +1,110 @@
package com.muyu.vehicle;
import com.aliyun.ecs20140526.Client;
import com.aliyun.ecs20140526.models.DeleteInstancesRequest;
import com.aliyun.ecs20140526.models.DescribeInstancesRequest;
import com.aliyun.ecs20140526.models.DescribeInstancesResponse;
import com.aliyun.ecs20140526.models.DescribeInstancesResponseBody;
import com.aliyun.tea.TeaException;
import com.aliyun.teaopenapi.models.Config;
import com.aliyun.teautil.Common;
import com.aliyun.teautil.models.RuntimeOptions;
import lombok.extern.log4j.Log4j2;
import org.springframework.beans.factory.DisposableBean;
import org.springframework.stereotype.Component;
import java.util.ArrayList;
@Component
@Log4j2
public class CloseInstance implements DisposableBean {
/**
* ACCESS_KEY_ID
*/
public static final String ALIBABA_CLOUD_ACCESS_KEY_ID="LTAI5tGabdxedjfCh2uXHNrw";
/**
*ACCESS_KEY_SECRET
*/
public static final String ACCESS_KEY_SECRET="NHb7wHVpesLW6Axc0bFBs6ThhuNR10";
public static Client createClient() throws Exception {
// 工程代码泄露可能会导致 AccessKey 泄露,并威胁账号下所有资源的安全性。以下代码示例仅供参考。
// 建议使用更安全的 STS 方式更多鉴权访问方式请参见https://help.aliyun.com/document_detail/378657.html。
Config config = new Config()
// 必填,请确保代码运行环境设置了环境变量 ALIBABA_CLOUD_ACCESS_KEY_ID。
.setAccessKeyId(ALIBABA_CLOUD_ACCESS_KEY_ID)
// 必填,请确保代码运行环境设置了环境变量 ALIBABA_CLOUD_ACCESS_KEY_SECRET。
.setAccessKeySecret(ACCESS_KEY_SECRET);
// Endpoint 请参考 https://api.aliyun.com/product/Ecs
config.endpoint = "ecs.cn-shanghai.aliyuncs.com";
return new Client(config);
}
public static void delInstance() throws Exception {
// 创建ECS客户端对象用于后续调用ECS相关API
Client client = CloseInstance.createClient();
DescribeInstancesRequest describeInstancesRequest = new DescribeInstancesRequest()
.setRegionId("cn-shanghai");
//创建运行时选择对象,用于配置运行时的选项参数
RuntimeOptions runtimeOptions = new RuntimeOptions();
//获取实例列表
DescribeInstancesResponse describeInstancesResponse = client.describeInstancesWithOptions(describeInstancesRequest, runtimeOptions);
//提取实例ID集合
ArrayList<String> list = new ArrayList<>();
DescribeInstancesResponseBody body = describeInstancesResponse.getBody();
for (DescribeInstancesResponseBody.DescribeInstancesResponseBodyInstancesInstance instance : body.getInstances().getInstance()) {
if (!instance.getInstanceId().equals("i-uf68jwsbbqq4b4xc893s")){
list.add(instance.getInstanceId());
}
}
log.info("搜索到实例Instance IDs: " + list);
// 创建删除实例请求对象,并设置请求参数
DeleteInstancesRequest deleteInstancesRequest = new DeleteInstancesRequest()
// 设置地域ID指定删除实例的地域
.setRegionId("cn-shanghai")
// 设置DryRun为true用于验证请求是否可以成功但不实际执行删除操作
.setDryRun(false)
// 设置Force为true表示即使实例有正在运行的任务也强制删除实例
.setForce(true)
// 设置TerminateSubscription为true表示删除按订阅付费的实例时终止订阅
.setTerminateSubscription(true)
.setInstanceId(list);
// 创建运行时选项对象,用于配置运行时的选项参数
RuntimeOptions runtime = new RuntimeOptions();
try {
// 复制代码运行请自行打印 API 的返回值
client.deleteInstancesWithOptions(deleteInstancesRequest, runtime);
} catch (TeaException error) {
// 此处仅做打印展示,请谨慎对待异常处理,在工程项目中切勿直接忽略异常。
// 错误 message
log.info(error.getMessage());
// 诊断地址
log.info(error.getData().get("Recommend"));
Common.assertAsString(error.message);
} catch (Exception _error) {
TeaException error = new TeaException(_error.getMessage(), _error);
// 此处仅做打印展示,请谨慎对待异常处理,在工程项目中切勿直接忽略异常。
// 错误 message
System.out.println(error.getMessage());
// 诊断地址
log.info(error.getData().get("Recommend"));
Common.assertAsString(error.message);
}
}
@Override
public void destroy() throws Exception {
log.info("开始删除实例");
delInstance();
}
}

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@ -0,0 +1,128 @@
package com.muyu.vehicle;
import com.aliyun.ecs20140526.Client;
import com.aliyun.ecs20140526.models.RunInstancesRequest;
import com.aliyun.tea.TeaException;
import com.aliyun.teaopenapi.models.Config;
import com.aliyun.teautil.Common;
import com.aliyun.teautil.models.RuntimeOptions;
import lombok.extern.log4j.Log4j2;
import org.springframework.boot.ApplicationArguments;
import org.springframework.boot.ApplicationRunner;
import org.springframework.stereotype.Component;
@Component
@Log4j2
public class OpenInstance implements ApplicationRunner {
/**
* ACCESS_KEY_ID
*/
public static final String ALIBABA_CLOUD_ACCESS_KEY_ID="LTAI5tGabdxedjfCh2uXHNrw";
/**
*ACCESS_KEY_SECRET
*/
public static final String ACCESS_KEY_SECRET="NHb7wHVpesLW6Axc0bFBs6ThhuNR10";
/**
* ID
*/
public static final String IMAGE_ID="m-uf6agr9i6g27gj23om34";
/**
*
*/
public static final String INSTANCE_TYPE="ecs.e-c1m1.large";
/**
* ID
*/
public static final String SECURITY_GROUP_ID="sg-uf6glo8c4k17szhxu7sk";
/**
*ID
*/
public static final String V_SWITCH_ID="vsw-uf6xy4rbt9ggcz93t6oib";
/**
*
*/
public static final String INSTANCE_CHARGE_TY="PostPaid";
/**
* 使AK&SKClient
* @return Client
* @throws Exception
*/
public static Client createClient() throws Exception {
// 工程代码泄露可能会导致 AccessKey 泄露,并威胁账号下所有资源的安全性。以下代码示例仅供参考。
Config config = new Config()
// 必填,请确保代码运行环境设置了环境变量 ALIBABA_CLOUD_ACCESS_KEY_ID。
.setAccessKeyId(ALIBABA_CLOUD_ACCESS_KEY_ID)
// 必填,请确保代码运行环境设置了环境变量 ALIBABA_CLOUD_ACCESS_KEY_SECRET。
.setAccessKeySecret(ACCESS_KEY_SECRET);
// Endpoint 请参考 https://api.aliyun.com/product/Ecs
config.endpoint = "ecs-cn-hangzhou.aliyuncs.com";
return new com.aliyun.ecs20140526.Client(config);
}
public static void generateInstance() throws Exception {
// 创建阿里云ECS客户端
Client client = OpenInstance.createClient();
// 配置系统盘参数
RunInstancesRequest.RunInstancesRequestSystemDisk systemDisk=
new RunInstancesRequest.RunInstancesRequestSystemDisk()
.setSize("40")
.setCategory("cloud_essd");
// 创建创建实例请求对象并设置参数
RunInstancesRequest runInstancesRequest = new RunInstancesRequest()
.setRegionId("cn-shanghai") // 设置地域ID
.setImageId(IMAGE_ID) // 设置镜像ID
.setInstanceType(INSTANCE_TYPE) // 设置实例类型
.setSecurityGroupId(SECURITY_GROUP_ID) // 设置安全组ID
.setVSwitchId(V_SWITCH_ID) // 设置虚拟交换机ID
.setInstanceName("cloud-MQTT") // 设置实例名称
.setInstanceChargeType(INSTANCE_CHARGE_TY) // 设置实例付费类型为后付费按量付费
.setSystemDisk(systemDisk) // 设置系统盘配置
.setHostName("root") // 设置主机名
.setPassword("2112A-four") // 设置实例密码
.setAmount(1) // 设置创建实例的数量
.setInternetChargeType("PayByTraffic")
.setInternetMaxBandwidthOut(1);
//创建运行时选择对象
RuntimeOptions runTime=
new RuntimeOptions();
// 尝试执行创建实例请求
try {
// 复制代码运行请自行打印 API 的返回值
client.runInstancesWithOptions(runInstancesRequest, runTime);
log.info("实例创建成功");
} catch (TeaException error) {
// 错误 message
log.info(error.getMessage());
// 诊断地址
log.info(error.getData().get("Recommend"));
Common.assertAsString(error.message);
} catch (Exception _error) {
TeaException error = new TeaException(_error.getMessage(), _error);
// 此处仅做打印展示,请谨慎对待异常处理,在工程项目中切勿直接忽略异常。
// 错误 message
log.info("实例创建失败:"+error.getMessage());
}
}
@Override
public void run(ApplicationArguments args) throws Exception {
generateInstance();
}
}

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@ -1,132 +0,0 @@
package com.muyu.vehicle;
import com.alibaba.fastjson.JSONObject;
import com.muyu.web.common.ScheduledThreadPool;
import com.muyu.web.domain.MqttProperties;
import com.muyu.web.domain.VehicleInfo;
import com.muyu.web.domain.model.PositionModel;
import lombok.AllArgsConstructor;
import lombok.Builder;
import lombok.Data;
import lombok.NoArgsConstructor;
import lombok.extern.log4j.Log4j2;
import org.eclipse.paho.client.mqttv3.MqttClient;
import org.eclipse.paho.client.mqttv3.MqttConnectOptions;
import org.eclipse.paho.client.mqttv3.MqttException;
import org.eclipse.paho.client.mqttv3.persist.MemoryPersistence;
import java.util.Objects;
import java.util.concurrent.LinkedBlockingQueue;
import java.util.concurrent.ScheduledFuture;
@Data
@Builder
@Log4j2
@NoArgsConstructor
@AllArgsConstructor
public class VehicleInstance {
/**
* 线
*/
private String positionCode;
/**
*
*/
private LinkedBlockingQueue<PositionModel> positionQueue=new LinkedBlockingQueue<>();
/**
*
*/
private VehicleInfo vehicleInfo;
/**
* 线
*/
private VehicleThread vehicleThread;
/**
* MQTT
*/
private MqttProperties mqttProperties;
/**
* 线
*/
private ScheduledFuture<?>scheduledFuture;
/**
*
*/
private MqttClient client;
/**
* VIN
*/
public String getVin(){
return this.vehicleInfo.getVin();
}
/**
*
*/
public String getTenantId(){
return this.vehicleInfo.getTenantId();
}
/**
*
*/
public void sengMsg(String msg){
}
/**
*
*/
public void initClient(){
try {
client = new MqttClient(mqttProperties.getBroker(), mqttProperties.getClientId(), new MemoryPersistence());
MqttConnectOptions options = new MqttConnectOptions();
//设置用户名和密码
if (Objects.nonNull(mqttProperties.getUserName())&&Objects.nonNull(mqttProperties.getPassword())){
options.setUserName(mqttProperties.getUserName());
options.setPassword(mqttProperties.getPassword().toCharArray());
}
options.setConnectionTimeout(1);
options.setKeepAliveInterval(20);
//连接
client.connect(options);
log.debug("车辆:[{}]客户端初始化成功连接配置:{}",getVin(),
JSONObject.toJSONString(this.mqttProperties)
);
VehicleThread vehicleThread = new VehicleThread();
vehicleThread.setVehicleInstance(this);
this.setVehicleThread(vehicleThread);
ScheduledFuture<?> submit = ScheduledThreadPool.submit(vehicleThread);
this.setScheduledFuture(submit);
log.info("初始化车辆上报模拟线程开始:[{}]", this.getVin());
} catch (MqttException e) {
log.error("车辆:[{}] 客户端初始化异常", getVin(), e);
throw new RuntimeException(e);
}
}
/**
* 线
*/
public boolean isOnline(){
if (this.client==null){
return false;
}
return this.client.isConnected();
}
/**
* 线
*/
public boolean isSend(){
return this.vehicleThread!=null;
}
}

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@ -1,24 +0,0 @@
package com.muyu.vehicle;
import lombok.Data;
import lombok.extern.log4j.Log4j2;
@Data
@Log4j2
public class VehicleThread implements Runnable{
/**
* 线
*/
private volatile boolean isStop;
/**
*
*/
private VehicleInstance vehicleInstance;
@Override
public void run() {
if (!isStop){
log.info("{}-上报数据",this.vehicleInstance.getVin());
}
}
}

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@ -1,12 +0,0 @@
package com.muyu.vehicle.api;
/**
*
*/
public interface ClientAdmin {
/**
*
*/
}

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@ -1,24 +0,0 @@
package com.muyu.vehicle.core;
import com.muyu.vehicle.VehicleInstance;
import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;
public class LocalContainer {
private static final Map<String,Map<String, VehicleInstance>> tenantVehicleDataMap
=new ConcurrentHashMap<>();
/**
* ID
*/
public static Map<String,VehicleInstance>getVehicleDataMap(String tenantId){
return tenantVehicleDataMap.computeIfAbsent(tenantId,k->new ConcurrentHashMap<>());
}
/**
*
*/
}

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@ -1,13 +0,0 @@
package com.muyu.vehicle.core;
import lombok.AllArgsConstructor;
import lombok.extern.log4j.Log4j2;
import org.springframework.boot.ApplicationArguments;
import org.springframework.boot.ApplicationRunner;
import org.springframework.context.annotation.Configuration;
@Log4j2
@Configuration
@AllArgsConstructor
public class VehicleConfiguration {
}

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@ -1,33 +0,0 @@
package com.muyu.web.common;
import net.sf.jsqlparser.statement.select.KSQLWindow;
import java.util.concurrent.Executors;
import java.util.concurrent.ScheduledExecutorService;
import java.util.concurrent.ScheduledFuture;
import java.util.concurrent.TimeUnit;
public class ScheduledThreadPool {
/**
* 线 CPU*2+1
*/
private static final ScheduledExecutorService scheduledThreadPool= Executors.newScheduledThreadPool(
Runtime.getRuntime().availableProcessors()*2+1
);
public static ScheduledFuture<?>submit(Runnable thread){
// 参数分别是: 任务, 多久后开始执行, 每隔多久执行一次(周期),时间单位
return submit(thread, 1);
}
public static ScheduledFuture<?>submit(Runnable thread,long period){
return scheduledThreadPool.scheduleAtFixedRate(thread,0,period, TimeUnit.SECONDS);
}
/**
* 线
*/
public static void shutdown(){
scheduledThreadPool.shutdown();
}
}

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@ -1,40 +0,0 @@
package com.muyu.web.controller;
import com.muyu.common.core.utils.uuid.UUID;
import org.eclipse.paho.client.mqttv3.*;
public class testController {
public static void main(String[] args) {
String broker = "tcp://47.101.53.251:1883";
String clientId = "SX-"+ UUID.randomUUID().toString();
MqttClient client;
try {
client = new MqttClient(broker, clientId);
MqttConnectOptions connectOptions = new MqttConnectOptions();
connectOptions.setCleanSession(true);
System.out.println("Connect to broker:"+broker);
client.connect(connectOptions);
System.out.println("Connected");
client.setCallback(new MqttCallback() {
@Override
public void connectionLost(Throwable throwable) {
System.out.println("连接丢失");
}
@Override
public void messageArrived(String topic, MqttMessage mqttMessage) throws Exception {
System.out.println("消息到达:"+new String(mqttMessage.getPayload())+topic);
}
@Override
public void deliveryComplete(IMqttDeliveryToken iMqttDeliveryToken) {
}
});
} catch (MqttException e) {
throw new RuntimeException(e);
}
}
}

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@ -1,42 +0,0 @@
package com.muyu.web.domain;
import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.NoArgsConstructor;
/**
* mqtt
*/
@Data
@AllArgsConstructor
@NoArgsConstructor
public class MqttProperties {
/**
*
*/
private String broker;
/**
*
*/
private String topic;
/**
*
*/
private String userName;
/**
*
*/
private String password;
/**
* ID
*/
private String clientId;
/**
*
*/
private int qos=0;
}

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@ -1,76 +0,0 @@
package com.muyu.web.domain;
import com.baomidou.mybatisplus.annotation.IdType;
import com.baomidou.mybatisplus.annotation.TableId;
import com.baomidou.mybatisplus.annotation.TableName;
import com.muyu.web.domain.model.ServerConfigModel;
import lombok.AllArgsConstructor;
import lombok.Builder;
import lombok.Data;
import lombok.NoArgsConstructor;
import java.util.function.Supplier;
/**
*
*/
@Data
@Builder
@NoArgsConstructor
@AllArgsConstructor
@TableName(value = "server_config")
public class ServerConfig {
/**
*
*/
@TableId(value = "id",type = IdType.AUTO)
private Long id;
/**
*
*/
private String host;
/**
*
*/
private String port;
/**
*
*/
private String url;
/**
* MOTT
*/
private String defaultMqttAddr;
/**
* MQTT
*/
private String defaultMqttTopic;
/**
* MOTT
*/
private Integer defaultMqttQos;
public static ServerConfig modeBuild(ServerConfigModel serverConfigModel, Supplier<Long> idKey){
return builder()
.id(idKey.get())
.host(serverConfigModel.getHost())
.port(serverConfigModel.getPort())
.url(serverConfigModel.getUrl())
.defaultMqttAddr(serverConfigModel.getDefaultMqttAddr())
.defaultMqttTopic(serverConfigModel.getDefaultMqttTopic())
.defaultMqttQos(serverConfigModel.getDefaultMqttQos())
.build();
}
}

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@ -1,92 +0,0 @@
package com.muyu.web.domain;
import com.baomidou.mybatisplus.annotation.*;
import lombok.AllArgsConstructor;
import lombok.Builder;
import lombok.Data;
import lombok.NoArgsConstructor;
import java.math.BigDecimal;
import java.util.Date;
import java.util.function.Supplier;
@Data
@NoArgsConstructor
@AllArgsConstructor
@Builder
@TableName("vehicle_info")
public class VehicleInfo {
/**
*
*/
@TableId(
value = "id",
type = IdType.AUTO
)
private Long id;
/**
* VIN
*/
private String vin;
/**
* VIN
*/
@TableField(value = "tenant_id", fill = FieldFill.INSERT)
private String tenantId;
/**
*
*/
@TableField("message_template_id")
private Long messageTemplateId;
/**
*
*/
@TableField("remaining_battery")
private BigDecimal remainingBattery;
/**
*
*/
@TableField("battery_level")
private BigDecimal batteryLevel;
/**
*
*/
@TableField("last_longitude")
private String lastLongitude;
/**
*
*/
@TableField("last_latitude")
private String lastLatitude;
/**
*
*/
@TableField("total_mileage")
private BigDecimal totalMileage;
/**
*
*/
@TableField(value = "create_time", fill = FieldFill.INSERT)
private Date createTime;
public static VehicleInfo create(String vin, Supplier<Long>messageTemplateId){
return VehicleInfo.builder()
.vin(vin)
.messageTemplateId(messageTemplateId.get())
.createTime(new Date())
.totalMileage(BigDecimal.ZERO)
.build();
}
}

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@ -1,37 +0,0 @@
package com.muyu.web.domain.model;
import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.NoArgsConstructor;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
Mqtt
*/
@Data
@NoArgsConstructor
@AllArgsConstructor
public class MqttServerModel {
private static final Logger log=LoggerFactory.getLogger(MqttServerModel.class);
/**
* MQTT
*/
private String broker;
/**
* MQTT
*/
private String topic;
public String getBroker(){
log.info("broker:{}",broker);
return broker.contains("tcp://")?broker:"tcp://"+broker+":1883";
}
}

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@ -1,33 +0,0 @@
package com.muyu.web.domain.model;
import lombok.AllArgsConstructor;
import lombok.Builder;
import lombok.Data;
import lombok.NoArgsConstructor;
/**
* @description:
*/
@Data
@Builder
@NoArgsConstructor
@AllArgsConstructor
public class PositionModel {
/**
*
*/
private String longitude;
/**
*
*/
private String latitude;
public static PositionModel strBuild (String positionStr) {
String[] split = positionStr.split(",");
return PositionModel.builder()
.longitude(split[0])
.latitude(split[1])
.build();
}
}

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@ -1,53 +0,0 @@
package com.muyu.web.domain.model;
import com.muyu.web.domain.ServerConfig;
import lombok.AllArgsConstructor;
import lombok.Builder;
import lombok.Data;
import lombok.NoArgsConstructor;
@Data
@Builder
@AllArgsConstructor
@NoArgsConstructor
public class ServerConfigModel {
/**
*
*/
private String host;
/**
*
*/
private String port;
/**
*
*/
private String url;
/**
* MOTT
*/
private String defaultMqttAddr;
/**
* MQTT
*/
private String defaultMqttTopic;
/**
* MOTT
*/
private Integer defaultMqttQos;
public static ServerConfigModel serverConfigModelBuild(ServerConfig serverConfig){
return builder()
.host(serverConfig.getHost().trim())
.port(serverConfig.getPort())
.url(serverConfig.getUrl().trim())
.defaultMqttAddr(serverConfig.getDefaultMqttAddr().trim())
.defaultMqttTopic(serverConfig.getDefaultMqttTopic().trim())
.defaultMqttQos(serverConfig.getDefaultMqttQos())
.build();
}
}

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@ -1,34 +0,0 @@
package com.muyu.web.domain.req;
import com.alibaba.fastjson.annotation.JSONField;
import lombok.AllArgsConstructor;
import lombok.Builder;
import lombok.Data;
import lombok.NoArgsConstructor;
@Data
@Builder
@NoArgsConstructor
@AllArgsConstructor
public class VehicleConnectionReq {
@JSONField(name = "vin")
private String vin;
/**
*
*/
private String timestamp;
/**
*
*/
@JSONField(name = "username")
private String userName;
/**
*
*/
private String nonce;
}

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package com.muyu.web.service;
public interface VehicleInstanceService {
/**
*
*/
void vehicleClientStart(String vin);
}

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package com.muyu.web.service.impl;
import com.muyu.common.core.utils.uuid.UUID;
import com.muyu.web.domain.req.VehicleConnectionReq;
import com.muyu.web.service.VehicleInstanceService;
import com.muyu.web.utils.MD5Util;
import lombok.extern.log4j.Log4j2;
import org.springframework.stereotype.Service;
@Log4j2
@Service
public class VehicleInstanceServiceImpl implements VehicleInstanceService {
@Override
public void vehicleClientStart(String vin) {
log.info("车辆{},开始上线",vin);
String timestamp = String.valueOf(System.currentTimeMillis());
VehicleConnectionReq.builder()
.vin(vin)
.timestamp(timestamp)
.userName(MD5Util.encrypted(vin+timestamp))
.nonce(MD5Util.encrypted(UUID.randomUUID().toString().replace("-","")))
.build();
//
}
}

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@ -1,52 +0,0 @@
package com.muyu.web.utils;
import lombok.extern.log4j.Log4j2;
import java.nio.charset.StandardCharsets;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
import java.security.SecureRandom;
@Log4j2
public class MD5Util {
private static final Integer SALT_LENGTH = 12;
/**
* 16
*/
public static String byteToHexString(byte[]b){
StringBuilder stringBuilder = new StringBuilder();
for (byte value : b) {
String hex = Integer.toHexString(value & 0xFF);
if (hex.length()==1){
hex='0'+hex;
}
stringBuilder.append(hex.toUpperCase());
}
return stringBuilder.toString();
}
/**
*
*/
public static String encrypted(String str){
try {
byte[]pwd=null;
SecureRandom random = new SecureRandom();
byte[] salt = new byte[SALT_LENGTH];
random.nextBytes(salt);
MessageDigest md=null;
md = MessageDigest.getInstance("MD5");
md.update(salt);
md.update(str.getBytes(StandardCharsets.UTF_8));
byte[] digest = md.digest();
pwd=new byte[digest.length+SALT_LENGTH];
System.arraycopy(salt,0,pwd,0,SALT_LENGTH);
System.arraycopy(digest,0,pwd,SALT_LENGTH,digest.length);
return byteToHexString(pwd);
} catch (NoSuchAlgorithmException e) {
throw new RuntimeException(e);
}
}
}