public class ClientBody
{
    private static final long serialVersionUID=1L;

    /** 自增id */
    private Long id;

    /** 項(xiàng)目名 */
    private String projectName;
    
    /** 端口 */
    private String port;
    
    /** 健康檢測回調(diào)接口 */
    private String CallbackInterface;

    /** 內(nèi)網(wǎng)ip */
    private String inNetIp;

    /** 外網(wǎng)ip */
    private String outNetIp;

    /** 注冊時(shí)間 */
    @JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss")
    private Date regSerTime;

    /** 0-健康 1-異常 2-死亡 */
    private String serType;

    /** 異常時(shí)間 */
    @JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss")
    private Date exceptTime;

    /** 死亡時(shí)間 */
    @JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss")
    private Date deathTime;

    /** 檢測次數(shù) */
    private Long checkNum;

    /** 異常次數(shù) */
    private Long exceNum;
}

/**
 * 令牌自定義標(biāo)識(shí)
 */
@Value("${token.header}")
private String header;

/**
 * 服務(wù)注冊
 */
@PostMapping("/serviceRegistration")
public Boolean add(HttpServletRequest request, @RequestBody ClientBody clientBody){
    /**
     * 獲取token
     */
    String token = request.getHeader("header");
    /**
     * 驗(yàn)證請求合法性
     */
    Boolean isLegal = SecurityUtils.verLegal(token);
    if(isLegal){
        /**
         * 檢測 serType!=2 端口+內(nèi)網(wǎng)地址
         */
        ClientBody client = clientBodyService.checkClient(clientBody);
        if(ObjectUtils.isNotEmpty(client)){
            /**
             * 說明是在心跳檢測期間重新啟動(dòng)。
             * 注銷這臺(tái)實(shí)例.
             *
             * Mysql client 這條數(shù)據(jù)
             * deathTime 改為現(xiàn)在時(shí)間
             * serType 改為 2
             *
             * Redis 直接刪除這個(gè)數(shù)據(jù)id 為 Key的數(shù)據(jù)
             * 直接刪除這臺(tái)實(shí)例
             */
            clientBodyService.logoutCient(client);
            /**
             * redis 和 Mysql 中新增一臺(tái)實(shí)例
             * regSerTime 現(xiàn)在時(shí)間
             * serType 為 0
             */
            clientBodyService.insert(clientBody);
        }else{
            /**
             * 啟動(dòng)了一臺(tái)實(shí)例
             */
            clientBodyService.insert(clientBody);
        }

        return true;

    }else{
        return false;
    }
}

/**
 * 60秒定時(shí)健康檢測
 */
@Scheduled(cron = "0/60 * * * * ?")
public void heartbeatCheck(){
    /**
     * 查詢 serType = 0 健康的 實(shí)例List
     */
    List<ClientBody> clientBodyList = clientBodyService.selectOnlineServer();
    for (ClientBody clientBody : clientBodyList) {
        //回調(diào)接口
        String CallbackInterface = clientBody.getCallbackInterface();
        //內(nèi)網(wǎng)地址
        String inNetIp = clientBody.getInNetIp();
        //拿到端口號(hào)
        String port = clientBody.getPort();
        
        //發(fā)送http請求 true為正常 false為異常
        Boolean state = HttpUtils.sendHead(CallbackInterface,inNetIp,port);

        if(state){
            //檢測次數(shù) + 1(checkNum + 1)
            clientBodyService.updateCientNormal(clientBody);
        }else{
            /**
             * 檢測ping不通原因可能時(shí)網(wǎng)絡(luò)波動(dòng)
             * 檢測十次 都是異常 才判定死亡
             */
            if(clientBody.getCheckNum() > 10){
                //修改這條數(shù)據(jù)為死亡 (serType = 2)
                clientBodyService.updateCientDeath(clientBody);
            }else{
                //修改這條數(shù)據(jù)為異常,然后檢測次數(shù) + 1,異常次數(shù) + 1,異常時(shí)間[現(xiàn)在時(shí)間字符串拼接在原有數(shù)據(jù)之后](serType = 1;checkNum + 1;exceNum + 1;)
                clientBodyService.updateCientException(clientBody);
            }
        }
    }
}

/**
 * 注冊
 * @PostConstruct 解釋：在項(xiàng)目啟動(dòng)時(shí)加載數(shù)據(jù)
 */
@PostConstruct
public void registerService(){
    HashMap<String, Object> map = new HashMap<String,Object>(){{
        //項(xiàng)目名
        put("projectName",MyConfig.getName());
        //我注冊選擇內(nèi)網(wǎng)地址，這個(gè)可以根據(jù)自己項(xiàng)目的實(shí)際情況選用。
        put("inNetIp", MyConfig.getUrl());
        //回調(diào)接口，這個(gè)接口就是下邊的健康檢測接口
        put("CallbackInterface", "/checkHealthy");
        //項(xiàng)目端口號(hào)
        put("port", MyConfig.getPort());
    }};

    AjaxResult ajaxResult = HttpUtils.sendPostRequest('注冊與配置中心url', "/serviceRegistration", map);
}

/**
 * 健康檢測接口
 */
@RequestMapping(value = "/CallbackInterface",method = RequestMethod.HEAD)
public void healthyByHead(HttpServletResponse response) {
    response.setHeader("data","200");
}

public class ConfigData
{
    private static final long serialVersionUID=1L;

    /** id */
    private Long id;

    /** key */
    private String key;

    /** value */
    private String value;

    /** tag */
    private String tag;

    /** remark */
    private String remark;
}

@GetMapping("/getConfigDataByTag")
public List<Map<String, String>> getConfig(@RequestParam String tag) throws JsonProcessingException {
    Map<String, String> configData = configDataService.selectconfigDataList(new configData(tag));
    return list;
}

public class ServerConfigProcessor implements EnvironmentPostProcessor {
    
    private static final String PROPERTY_SOURCE_NAME = "databaseProperties";

    @Override
    public void postProcessEnvironment(ConfigurableEnvironment environment, SpringApplication application) {
        log.info("ServerConfig loading start");
        Map<String, Object> propertySource = new HashMap<>();

        try {
            /**
             * 拉取配置
             * MyConfig.ServerConfigHttpUrl 服務(wù)端url
             * MyConfig.ServerConfigInterface 服務(wù)端接口
             * MyConfig.MyServerTag 本服務(wù)標(biāo)識(shí)（用來判斷拉取的配置條件）
             */
            Map<String, Object> configSource = HttpUtils.sendGet(MyConfig.ServerConfigHttpUrl,MyConfig.ServerConfigInterface,MyConfig.MyServerTag);

            propertySource.putAll(configSource);

            environment.getPropertySources().addFirst(new MapPropertySource(PROPERTY_SOURCE_NAME, propertySource));

            log.info("ServerConfig loading Success");

        } catch (Throwable e) {
            e.printStackTrace();
            throw new RuntimeException(e);
        }
    }
}