(1)导入验证修正bug,多线程引入service调用时发生异常，将service调用dns响应策略，dns组改为从缓存中获取

(2)DNS IP导入改为批量导入

src/main/java/com/nis/util/Constants.java

@@ -172,6 +172,14 @@ public final class Constants {
 	 * 功能配置域字典key
 	 */
 	public static final String CACHE_FUNCTION_REGION_DICT = "functionRegionDict";
+	/**
+	 * DNS 响应策略KEY
+	 */
+	public static final String CACHE_DNSRESSTRATEGY_DICT = "dnsResStrategyDict";
+	/**
+	 * DNS 策略组KEY
+	 */
+	public static final String CACHE_DNSGROUP_DICT = "dnsGroupDict";
 	/**
 	 *  词典数据分类
 	 */