fix SearchKeyWordUtils

@@ -2,6 +2,7 @@ package com.yoho.search.service.utils;
 
 import java.io.UnsupportedEncodingException;
 import java.net.URLDecoder;
+import java.nio.charset.StandardCharsets;
 import java.util.Map;
 
 import org.apache.commons.lang.StringUtils;
@@ -19,21 +20,18 @@ public class SearchKeyWordUtils {
 		}
 		// 编码转换
 		String is_encode = paramMap.get("is_encode");
-		if (StringUtils.isNotBlank(is_encode) && is_encode.equals("1")) {
+		if ("1".equals(is_encode)) {
 			try {
-				keyword = URLDecoder.decode(keyword, "UTF-8");
+				keyword = URLDecoder.decode(keyword, StandardCharsets.UTF_8.name());
 			} catch (UnsupportedEncodingException e) {
 				logger.warn(e.getMessage(), e);
 			}
 		}
-		if (keyword.contains("%")) {
-			keyword.replace("%", "percent");// 特殊处理
-		}
 		if (keyword.equals("耐克")) {
 			keyword = "nike";
 		}
 		keyword = keyword.toLowerCase();
 		return keyword;
 	}
-
+	
 }