我們會(huì)有在項(xiàng)目服務(wù)啟動(dòng)的時(shí)候就去加載一些數(shù)據(jù)或做一些事情這樣的需求，為了解決這樣的問(wèn)題，在Spring Boot 中，實(shí)現(xiàn)接口 CommandLineRunner 即可。

創(chuàng)建實(shí)現(xiàn)接口 CommandLineRunner 的類：

/**
 * 監(jiān)聽(tīng)完成時(shí)觸發(fā)
 * 
 * @author : Fredia
 * @since : 2018年3月16日
 * @version : v1.0.0
 */
@Configuration
public class AuthClientRunner implements CommandLineRunner {

    @Autowired
    private ServiceAuthConfig serviceAuthConfig;
    @Autowired
    private UserAuthConfig userAuthConfig;
    @Autowired
    private ServiceAuthFeign serviceAuthFeign;

    @Override
    public void run(String... args) throws Exception {
        log.info("初始化加載用戶pubKey");
        try {
            refreshUserPubKey();
        }catch(Exception e){
            log.error("初始化加載用戶pubKey失敗,1分鐘后自動(dòng)重試!",e);
        }
        log.info("初始化加載客戶pubKey");
        try {
            refreshServicePubKey();
        }catch(Exception e){
            log.error("初始化加載客戶pubKey失敗,1分鐘后自動(dòng)重試!",e);
        }
    }
 \    public void refreshUserPubKey(){
        BaseResponse resp = serviceAuthFeign.getUserPublicKey(serviceAuthConfig.getClientId(), serviceAuthConfig.getClientSecret());
        if (resp.getStatus() == HttpStatus.OK.value()) {
            ObjectRestResponse<byte[]> userResponse = (ObjectRestResponse<byte[]>) resp;
            this.userAuthConfig.setPubKeyByte(userResponse.getData());
        }
    }
 
    public void refreshServicePubKey(){
        BaseResponse resp = serviceAuthFeign.getServicePublicKey(serviceAuthConfig.getClientId(), serviceAuthConfig.getClientSecret());
        if (resp.getStatus() == HttpStatus.OK.value()) {
            ObjectRestResponse<byte[]> userResponse = (ObjectRestResponse<byte[]>) resp;
            this.serviceAuthConfig.setPubKeyByte(userResponse.getData());
        }
    }

}