service和工具类（utils）获取yml中的配置(Service and utility classes (utils) get the configuration in YML)

application.yml文件中配置如下

es:  #集群名  clusterName: elasticsearch

1、@Value(“${es.clusterName}”)

在controller、service里可以，在工具类中（Utils）不行

2、@ConfigurationProperties

注意 get set 方法不需要，且不能是static

@Component@ConfigurationProperties(prefix = "es")public class ElasticSearchConfig{    /** 集群名 */   public String clusterName;　　public void setClusterName(String clusterName) {　　　　this.clusterName = clusterName;　　}　　public String getApplicationName() {　　　　return applicationName;　　}}

#service中

@Autowiredprivate ElasticSearchConfig searchConfig;
String ab = searchConfig.clusterName;String bb = searchConfig.getClusterName();

 #工具类中

注意：@Compnent必须加

@Componentpublic class ClientUtil {    private static ElasticSearchConfig searchConfig;    @Autowired    public void setSearchConfig(ElasticSearchConfig searchConfig){        ClientUtil.searchConfig = searchConfig;    }
　　public static void test() {　　　　String cc = searchConfig.clusterName;　　　　String dd = searchConfig.getClusterName();　　}
}
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application. The configuration in the YML file is as follows

es:  #集群名  clusterName: elasticsearch

1、@Value(“${es.clusterName}”)

It is OK in controller and service, but not in tool class (utils)

2、@ConfigurationProperties

Note that the get set method is unnecessary and cannot be static

@Component@ConfigurationProperties(prefix = "es")public class ElasticSearchConfig{    /** 集群名 */   public String clusterName;　　public void setClusterName(String clusterName) {　　　　this.clusterName = clusterName;　　}　　public String getApplicationName() {　　　　return applicationName;　　}}

#service中

@Autowiredprivate ElasticSearchConfig searchConfig;
String ab = searchConfig.clusterName;String bb = searchConfig.getClusterName();

# tool class

Note: @ component must be added

@Componentpublic class ClientUtil {    private static ElasticSearchConfig searchConfig;    @Autowired    public void setSearchConfig(ElasticSearchConfig searchConfig){        ClientUtil.searchConfig = searchConfig;    }
　　public static void test() {　　　　String cc = searchConfig.clusterName;　　　　String dd = searchConfig.getClusterName();　　}
}