diff --git a/spring-cloud-alibaba-sentinel-datasource/src/main/java/org/springframework/cloud/alibaba/sentinel/datasource/converter/JsonConverter.java b/spring-cloud-alibaba-sentinel-datasource/src/main/java/org/springframework/cloud/alibaba/sentinel/datasource/converter/JsonConverter.java
index fccd0a40..ebe58acc 100644
--- a/spring-cloud-alibaba-sentinel-datasource/src/main/java/org/springframework/cloud/alibaba/sentinel/datasource/converter/JsonConverter.java
+++ b/spring-cloud-alibaba-sentinel-datasource/src/main/java/org/springframework/cloud/alibaba/sentinel/datasource/converter/JsonConverter.java
@@ -158,15 +158,15 @@ public class JsonConverter implements Converter<String, List<AbstractRule>> {
 		return rule;
 	}
 
-    private ParamFlowRule convertParamFlowRule(String json) {
-        ParamFlowRule rule = null;
-        try {
-            rule = objectMapper.readValue(json, ParamFlowRule.class);
-        }
-        catch (Exception e) {
-            // ignore
-        }
-        return rule;
-    }
+	private ParamFlowRule convertParamFlowRule(String json) {
+		ParamFlowRule rule = null;
+		try {
+			rule = objectMapper.readValue(json, ParamFlowRule.class);
+		}
+		catch (Exception e) {
+			// ignore
+		}
+		return rule;
+	}
 
 }
diff --git a/spring-cloud-alibaba-sentinel-datasource/src/main/java/org/springframework/cloud/alibaba/sentinel/datasource/converter/XmlConverter.java b/spring-cloud-alibaba-sentinel-datasource/src/main/java/org/springframework/cloud/alibaba/sentinel/datasource/converter/XmlConverter.java
index 460d3eef..af62df74 100644
--- a/spring-cloud-alibaba-sentinel-datasource/src/main/java/org/springframework/cloud/alibaba/sentinel/datasource/converter/XmlConverter.java
+++ b/spring-cloud-alibaba-sentinel-datasource/src/main/java/org/springframework/cloud/alibaba/sentinel/datasource/converter/XmlConverter.java
@@ -157,15 +157,15 @@ public class XmlConverter implements Converter<String, List<AbstractRule>> {
 		return rule;
 	}
 
-    private ParamFlowRule convertParamFlowRule(String json) {
-        ParamFlowRule rule = null;
-        try {
-            rule = xmlMapper.readValue(json, ParamFlowRule.class);
-        }
-        catch (Exception e) {
-            // ignore
-        }
-        return rule;
-    }
+	private ParamFlowRule convertParamFlowRule(String json) {
+		ParamFlowRule rule = null;
+		try {
+			rule = xmlMapper.readValue(json, ParamFlowRule.class);
+		}
+		catch (Exception e) {
+			// ignore
+		}
+		return rule;
+	}
 
 }
diff --git a/spring-cloud-alibaba-sentinel/src/main/java/org/springframework/cloud/alibaba/sentinel/endpoint/SentinelEndpoint.java b/spring-cloud-alibaba-sentinel/src/main/java/org/springframework/cloud/alibaba/sentinel/endpoint/SentinelEndpoint.java
index caaec4df..d7e3e9da 100644
--- a/spring-cloud-alibaba-sentinel/src/main/java/org/springframework/cloud/alibaba/sentinel/endpoint/SentinelEndpoint.java
+++ b/spring-cloud-alibaba-sentinel/src/main/java/org/springframework/cloud/alibaba/sentinel/endpoint/SentinelEndpoint.java
@@ -62,12 +62,12 @@ public class SentinelEndpoint extends AbstractEndpoint<Map<String, Object>> {
 		List<FlowRule> flowRules = FlowRuleManager.getRules();
 		List<DegradeRule> degradeRules = DegradeRuleManager.getRules();
 		List<SystemRule> systemRules = SystemRuleManager.getRules();
-        List<ParamFlowRule> paramFlowRules = ParamFlowRuleManager.getRules();
+		List<ParamFlowRule> paramFlowRules = ParamFlowRuleManager.getRules();
 		result.put("properties", sentinelProperties);
 		result.put("FlowRules", flowRules);
 		result.put("DegradeRules", degradeRules);
 		result.put("SystemRules", systemRules);
-        result.put("ParamFlowRule", paramFlowRules);
+		result.put("ParamFlowRule", paramFlowRules);
 		result.put("datasources", new HashMap<String, Object>());
 
 		for (String dataSourceBeanName : dataSourceHandler.getDataSourceBeanNameList()) {