diff --git a/adc-da-base/src/main/java/com/adc/da/xss/SQLFilter.java b/adc-da-base/src/main/java/com/adc/da/xss/SQLFilter.java
index 60584f33..eb6978d0 100644
--- a/adc-da-base/src/main/java/com/adc/da/xss/SQLFilter.java
+++ b/adc-da-base/src/main/java/com/adc/da/xss/SQLFilter.java
@@ -1,8 +1,14 @@
 package com.adc.da.xss;
 
 import com.adc.da.exception.AdcDaBaseException;
+import com.alibaba.fastjson.JSON;
+import com.alibaba.fastjson.JSONObject;
 import org.apache.commons.lang3.StringUtils;
 
+import java.util.Arrays;
+import java.util.List;
+import java.util.stream.Collectors;
+
 public class SQLFilter {
 
 
@@ -13,13 +19,13 @@ public class SQLFilter {
             String checkStr= str;
             checkStr = StringUtils.replace(checkStr, "\\", "");
             checkStr = checkStr.toLowerCase();
-            String[] keywords = new String[]{"master", "truncate", "insert", "select", "delete", "update", "declare", "alter", "drop"};
+            String[] keywords = new String[]{"master ", "truncate ", "insert ", "select ", "delete ", "update", "declare ", "alter ", "drop "};
             String[] arr$ = keywords;
             int len$ = keywords.length;
 
             for(int i$ = 0; i$ < len$; ++i$) {
                 String keyword = arr$[i$];
-                if (checkStr.indexOf(keyword) != -1) {
+                if (checkStr.contains(keyword)) {
                     throw new AdcDaBaseException("包含非法字符");
                 }
             }