find()更新缓存
Yueng
parent
b2a2a2bcb7
commit
82bbab11db
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package com.muyu.car.gateway.service.impl;
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import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
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import com.muyu.car.domain.api.req.VehicleConnectionReq;
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import com.muyu.car.domain.model.MqttServerModel;
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import com.muyu.car.domain.model.VehicleInformation;
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import com.muyu.car.gateway.service.VehicleInformationService;
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import com.muyu.car.mapper.VehicleInformationMapper;
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import com.muyu.common.redis.service.RedisService;
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import lombok.extern.log4j.Log4j2;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.data.redis.core.RedisTemplate;
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import org.springframework.stereotype.Service;
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import java.util.HashMap;
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import java.util.LinkedList;
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import java.util.List;
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import java.util.Map;
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/**
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* @Author：蓬叁
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* @Package：com.muyu.car.gateway.service.impl
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* @Project：cloud-server-8
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* @name：VehicleInformationServiceImpl
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* @Date：2024/10/6 下午2:41
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*/
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@Log4j2
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@Service
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public class VehicleInformationServiceImpl implements VehicleInformationService{
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@Autowired private VehicleInformationMapper vehicleInformationMapper;
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@Autowired private RedisService redisService;
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@Override
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public MqttServerModel getVehicleData(VehicleConnectionReq vehicleConnectionReq) {
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log.info("车辆连接请求:[{}]",vehicleConnectionReq);
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vehicleConnectionReq.setPassword(vehicleConnectionReq.getVehicleVin()+vehicleConnectionReq.getTimestamp()+vehicleConnectionReq.getNonce());
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List<String> selectVehicle =vehicleInformationMapper.selectVehicleVin(vehicleConnectionReq.getVehicleVin());
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if(selectVehicle.isEmpty()) {
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vehicleInformationMapper.addVehicleConnection(vehicleConnectionReq);
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log.info("车辆预上线成功");
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}else {
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log.info("车辆无法重复预上线");
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}
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// 获取名为 "ipList" 的列表
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List<String> ipList = redisService.getCacheList("ipList");
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if (ipList.isEmpty()) {
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return null;
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}
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// 获取当前使用的索引位置
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String indexStr = redisService.getCacheObject("currentIndex");
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int index = indexStr!= null? Integer.parseInt(indexStr) : 0;
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String selectedIp = ipList.get(index);
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// 获取该 IP 的使用次数
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String countStr = redisService.getCacheMapValue("ipCounts", selectedIp);
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log.info("IP:[{}]车辆连接数:[{}]",selectedIp,countStr);
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int count = countStr!= null? Integer.parseInt(countStr) : 0;
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if (count < 12) {
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// 使用次数加一
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count++;
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redisService.setCacheMapValue("ipCounts", selectedIp, String.valueOf(count));
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// 更新索引
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index = (index + 1) % ipList.size();
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redisService.setCacheObject("currentIndex", String.valueOf(index));
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return new MqttServerModel("tcp://"+selectedIp.substring(1,selectedIp.length()-1)+":1883","vehicle");
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} else {
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// 如果使用次数达到 12 次，跳过该 IP 并更新索引
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index = (index + 1) % ipList.size();
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redisService.setCacheObject("currentIndex", String.valueOf(index));
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return getVehicleData(vehicleConnectionReq);
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}
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}
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}
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package com.muyu.car.instance;
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import com.aliyun.ecs20140526.models.*;
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import com.aliyun.tea.TeaException;
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import com.muyu.car.domain.example.ExampleInformation;
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import com.muyu.common.redis.service.RedisService;
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import io.swagger.v3.oas.annotations.tags.Tag;
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import lombok.extern.log4j.Log4j2;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.boot.ApplicationArguments;
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import org.springframework.boot.ApplicationRunner;
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import org.springframework.stereotype.Component;
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import java.util.ArrayList;
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import java.util.List;
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/**
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* 项目启动创建实例
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* @Author：蓬叁
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* @Package：com.muyu.car.domain
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* @Project：cloud-server-8
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* @name：GenerateInstance
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* @Date：2024/9/29 上午10:42
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*/
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@Component
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@Log4j2
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@Tag(name = "启动时创建实例")
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public class GenerateInstance implements ApplicationRunner {
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@Autowired private RedisService redisService;
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/**
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* 启动自动创建实例
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* @throws Exception
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*/
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public static List<String> generateInstance() throws Exception {
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// 创建ECS客户端对象，用于后续调用ECS相关API
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com.aliyun.ecs20140526.Client client = CreateClient.createClient();
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com.aliyun.ecs20140526.models.RunInstancesRequest.RunInstancesRequestSystemDisk systemDisk = new com.aliyun.ecs20140526.models.RunInstancesRequest.RunInstancesRequestSystemDisk()
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.setSize("40")
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.setCategory("cloud_essd");
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com.aliyun.ecs20140526.models.RunInstancesRequest runInstancesRequest = new com.aliyun.ecs20140526.models.RunInstancesRequest()
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// 设置地域ID
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.setRegionId("cn-hangzhou")
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// 设置镜像ID
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.setImageId("m-bp1hkxfctk751s62jqhq")
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// 设置实例类型
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.setInstanceType("ecs.t6-c1m1.large")
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// 设置安全组ID
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.setSecurityGroupId("sg-bp1a7fk8js5pn3fw9p2m")
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// 设置虚拟交换机ID
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.setVSwitchId("vsw-bp193np7r01vssqxhh24e")
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// 设置实例名称
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.setInstanceName("server-mqtt")
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// 设置实例付费类型为后付费按量付费
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.setInstanceChargeType("PostPaid")
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// 设置互联网最大出带宽为1 Mbps
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.setInternetMaxBandwidthOut(1)
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// 设置系统盘配置
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.setSystemDisk(systemDisk)
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// 设置主机名
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.setHostName("root")
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// 设置实例密码
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.setPassword("EightGroup123.")
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// 设置创建实例的数量
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.setAmount(2);
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com.aliyun.teautil.models.RuntimeOptions runtime = new com.aliyun.teautil.models.RuntimeOptions();
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try {
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// 复制代码运行请自行打印 API 的返回值
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RunInstancesResponse runInstancesResponse = client.runInstancesWithOptions(runInstancesRequest, runtime);
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// 获取body返回值对象
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RunInstancesResponseBody body = runInstancesResponse.getBody();
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ArrayList<String> list = new ArrayList<>();
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// 得到实例ID数组
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for (String instance : body.getInstanceIdSets().getInstanceIdSet()) {
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list.add(instance);
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}
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log.info("实例ID:{}",list);
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return list;
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} catch (TeaException error) {
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// 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。
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// 错误 message
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log.info(error.getMessage());
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// 诊断地址
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log.info(error.getData().get("Recommend"));
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com.aliyun.teautil.Common.assertAsString(error.message);
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} catch (Exception _error) {
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TeaException error = new TeaException(_error.getMessage(), _error);
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// 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。
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// 错误 message
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log.info(error.getMessage());
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// 诊断地址
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log.info(error.getData().get("Recommend"));
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com.aliyun.teautil.Common.assertAsString(error.message);
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}
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return null;
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}
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@Override
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public void run(ApplicationArguments args) throws Exception {
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List<String> InstanceIds = generateInstance();
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log.info("创建实例成功");
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log.info("正在加载实例");
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Thread.sleep(30000);
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List<ExampleInformation> exampleInformations = QueryInstance.queryInstance(InstanceIds);
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log.info("加载成功");
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ArrayList<String> list = new ArrayList<>();
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for (ExampleInformation exampleInformation : exampleInformations) {
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redisService.setCacheObject("InstanceIdKey:"+exampleInformation.getInstanceId(),exampleInformation);
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list.add(exampleInformation.getIpAddress());
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}
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redisService.setCacheList("ipList",list);
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log.info("实例信息:{}",exampleInformations);
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}
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}
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