客户端提前链接

 package com.yoho.search.service.base;
 
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Map;
+import java.util.concurrent.ConcurrentHashMap;
+
+import javax.annotation.PostConstruct;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.context.annotation.Lazy;
+import org.springframework.stereotype.Component;
+import org.springframework.util.Assert;
+
 import com.yoho.search.base.utils.Configuration;
+import com.yoho.search.base.utils.ISearchConstants;
 import com.yoho.search.core.es.IElasticsearchClient;
 import com.yoho.search.core.es.IYohoIndexClientFactory;
 import com.yoho.search.core.es.impl.YohoIndexClientFactoryImpl;
-import org.springframework.stereotype.Component;
-import org.springframework.util.Assert;
-
-import java.util.Map;
-import java.util.concurrent.ConcurrentHashMap;
 
 /**
  * Created by ginozhang on 2016/11/2.
  */
 @Component
+@Lazy(value=false)
 public class ESClientMgr {
 
     private volatile Map<String, IElasticsearchClient> nameToClientMap = new ConcurrentHashMap<String, IElasticsearchClient>(50);
-
+    
+    private static final Logger logger = LoggerFactory.getLogger(ESClientMgr.class);
+    
+    @PostConstruct
+    void init(){
+    	List<String> indexNames = new ArrayList<String>();
+    	
+    	indexNames.add(ISearchConstants.INDEX_NAME_PRODUCT_COLOR);
+    	indexNames.add(ISearchConstants.INDEX_NAME_PRODUCT_SORT);
+    	indexNames.add(ISearchConstants.INDEX_NAME_PRODUCT_INDEX);
+    	indexNames.add(ISearchConstants.INDEX_NAME_SUGGEST);
+    	indexNames.add(ISearchConstants.INDEX_NAME_CONVERSION);
+    	indexNames.add(ISearchConstants.INDEX_NAME_STYLE);
+    	indexNames.add(ISearchConstants.INDEX_NAME_STANDARD);
+    	indexNames.add(ISearchConstants.INDEX_NAME_BRAND);
+    	indexNames.add(ISearchConstants.INDEX_NAME_SIZE);
+    	indexNames.add(ISearchConstants.INDEX_NAME_TBLPRODUCT);
+    	
+    	indexNames.add(ISearchConstants.INDEX_NAME_PRODUCT_PRICE_PLAN);
+    	indexNames.add(ISearchConstants.INDEX_NAME_ROBOTQUESTION);
+    	indexNames.add(ISearchConstants.INDEX_NAME_HELPER);
+    	indexNames.add(ISearchConstants.INDEX_NAME_SHOPS);
+    	indexNames.add(ISearchConstants.INDEX_NAME_PROMOTION);
+    	indexNames.add(ISearchConstants.INDEX_NAME_IMAGE_VECTORS);
+    	indexNames.add(ISearchConstants.INDEX_NAME_IMAGE_VECTORS);
+    	indexNames.add(ISearchConstants.INDEX_NAME_PROMOTIONINDEX);
+    	
+    	for (String indexName : indexNames) {
+			this.getClient(indexName);
+		}
+    	
+    }
+    
+    
     public IElasticsearchClient getClient(String indexName) {
         return nameToClientMap.computeIfAbsent(indexName, (name) -> {
             IYohoIndexClientFactory factory = new YohoIndexClientFactoryImpl();
@@ -25,6 +68,7 @@ public class ESClientMgr {
             String servers = Configuration.getString("search.es.servers");
             Assert.notNull(clusterName, "ClusterName for ES cannot be null.");
             Assert.notNull(servers, "Servers for ES cannot be null.");
+            logger.warn("begin to createIndexClient, clusterName is [{}],servers is [{}],name is[{}]",clusterName,servers,name);
             return factory.createIndexClient(clusterName, servers, name);
         });
     }