diff --git a/src/main/java/com/pig4cloud/plugin/impl/highgo/HistoryConfigInfoMapperByHighgo.java b/src/main/java/com/pig4cloud/plugin/impl/highgo/HistoryConfigInfoMapperByHighgo.java
index fdcec6f..cfa5fe9 100644
--- a/src/main/java/com/pig4cloud/plugin/impl/highgo/HistoryConfigInfoMapperByHighgo.java
+++ b/src/main/java/com/pig4cloud/plugin/impl/highgo/HistoryConfigInfoMapperByHighgo.java
@@ -7,46 +7,46 @@
 
 public class HistoryConfigInfoMapperByHighgo extends AbstractMapper implements HistoryConfigInfoMapper {
 
-    @Override
-    public String removeConfigHistory() {
-        return "DELETE FROM his_config_info WHERE gmt_modified < ? LIMIT ?";
-    }
-
-    @Override
-    public String findConfigHistoryCountByTime() {
-        return "SELECT count(*) FROM his_config_info WHERE gmt_modified < ?";
-    }
-
-    @Override
-    public String findDeletedConfig() {
-        return "SELECT DISTINCT data_id, group_id, tenant_id FROM his_config_info WHERE op_type = 'D' AND gmt_modified >= ? AND gmt_modified <= ?";
-    }
-
-    @Override
-    public String findConfigHistoryFetchRows() {
-        return "SELECT nid,data_id,group_id,tenant_id,app_name,src_ip,src_user,op_type,gmt_create,gmt_modified FROM his_config_info "
-                + "WHERE data_id = ? AND group_id = ? AND tenant_id = ? ORDER BY nid DESC";
-    }
-
-    @Override
-    public String pageFindConfigHistoryFetchRows(int i, int i1) {
-        throw new UnsupportedOperationException();
-    }
-
-    @Override
-    public String detailPreviousConfigHistory() {
-        return "SELECT nid,data_id,group_id,tenant_id,app_name,content,md5,src_user,src_ip,op_type,gmt_create,gmt_modified "
-                + "FROM his_config_info WHERE nid = (SELECT max(nid) FROM his_config_info WHERE id = ?) ";
-    }
-
-    @Override
-    public String getTableName() {
-        return TableConstant.HIS_CONFIG_INFO;
-    }
-
-    @Override
-    public String getDataSource() {
-        return DataSourceConstant.HIGHGO;
-    }
+	@Override
+	public String removeConfigHistory() {
+		return "DELETE FROM his_config_info WHERE gmt_modified < ? LIMIT ?";
+	}
+
+	@Override
+	public String findConfigHistoryCountByTime() {
+		return "SELECT count(*) FROM his_config_info WHERE gmt_modified < ?";
+	}
+
+	@Override
+	public String findDeletedConfig() {
+		return "SELECT DISTINCT data_id, group_id, tenant_id FROM his_config_info WHERE op_type = 'D' AND gmt_modified >= ? AND gmt_modified <= ?";
+	}
+
+	@Override
+	public String findConfigHistoryFetchRows() {
+		return "SELECT nid,data_id,group_id,tenant_id,app_name,src_ip,src_user,op_type,gmt_create,gmt_modified FROM his_config_info "
+				+ "WHERE data_id = ? AND group_id = ? AND tenant_id = ? ORDER BY nid DESC";
+	}
+
+	@Override
+	public String pageFindConfigHistoryFetchRows(int i, int i1) {
+		throw new UnsupportedOperationException();
+	}
+
+	@Override
+	public String detailPreviousConfigHistory() {
+		return "SELECT nid,data_id,group_id,tenant_id,app_name,content,md5,src_user,src_ip,op_type,gmt_create,gmt_modified "
+				+ "FROM his_config_info WHERE nid = (SELECT max(nid) FROM his_config_info WHERE id = ?) ";
+	}
+
+	@Override
+	public String getTableName() {
+		return TableConstant.HIS_CONFIG_INFO;
+	}
+
+	@Override
+	public String getDataSource() {
+		return DataSourceConstant.HIGHGO;
+	}
 
 }